On new or Nttle-known Tipulid~.

337

Mogannla dlstinguenda, sp. n.
Body above bright emera]d-green~ eyes blackish; body
beneath echraeeous ; face a,d anterior legs pale castaneous~intermediate and posterior legs ochraceous; base o[~ face
emerald-green; tegmina and wings hyaline; tegmiua withthe costal area to ius~ beyond apex of radial area sanguiueous~veins on ba,~al haft emerald-gree~l, remaining venation moroor less fusc~)us ; wings pale hyaline, narrowly" sanguineousat base, the venation greenish on about basal llalf, remainder
fuscous; head conically" produced in fron~, eyes and oeelli
fuscous ; ol)crcula and lateral areas of sternu~n with a palo
greenish ~iu£; abdomen beneath with a central longitu~tinal
carination ; opercula small, no~; covering the cavities, which
are dark fuseous.
Long., exel. tegm., ~ , 14; exp. tegm. 40 ram.
Hab. Indo-China; Hau~ Mekong, Muong Sing (R. V.
de 8alvaza).
kIogan~da obliqua.
Mogannia obli~lua,Walk. List Ilom, Suppl. p. 39 (1858).
ltab. Indo-China ; Haut Mekong, ~1uong Sing.
& single specimen of this species, not uncommon in India,
Bm'ma, Malay Peninsula, alld Jay% has now been received
from Indo-China.

X L V I i.--New or little-knowa Tipulidte (Diptera).--II. Ethiopian Species.
By CHARLES P. ALEXANDER, Ph.D.,Uri)a~la, Illinois, U.S.A.
Tn~ crane-flies described ill this instalment were included
in material sent to me for study by Dr. Hugh Scott of the
University 5fuseum 7 Cambridge, and Rev. J. A. Reis of
the Cameroun. Dr. Scott has requested that the typesof the new species described from the material submitted byhim be deposited iu the British Museum. The other types
arc preserved in the collectio~l of the author. I am indcbted
to Prof. Lamb, Dr. Scott, aud Reverend Keis ibr dm loanof this material.
Dicranomyia marshalli, sp. n.
Wings very long and narrow, vein Sc short; generalAnn." & llL~g. N. Hist. Set. 9. Vet. v.
23

338

Dr. C. P. Alexander oncoloration of the body greyish ; halteres long and slender ;fore femora dark brown, the other femora paler.
JFemale.--Length 7"8-8"4 mm. ; wing 9-10 mm.
Rostrum rather long for most species oi this genus offlies, about equal to half the length of the head or to theautennal scape, dark brown, including the palpi. Antennre
dark brown, the flagetlar segments long-oval, with a shortwhite pubescence and a few curved verticils. Head black,grey-pruinose.
Thorax dark grey, the prrescutum with the stripes indistinct or lacking. Halteres long and slender, pal% theknobs brown. Legs with the coxm small, dull yellow,
the outer face of the fore cox~e infuscated ; troehanters paleyellowish brown; fore femora dark brown, with only theextreme base pale; middle and hind femora yellowish;
tibiae light brownish yellow, the tips narrowly darkened ;tarsi dark brown. Wings very long and narrow, somewhat
as in the Holarctic Dicranomyia longipennis (Schummel),pale yellowish grey, the stigma and veins pale. Venation :Sc short, Scl ending about opposite or slightly beyond theorigin o[ Rs, Sce removed a short distance from the tip ofScl, the latter alone being about equal to two-thirds thebasal deflection of Cul; basal deflection of R~+~ about
one-half the sector; basal deflection of Cux far before thefork of M, the fusion of M and the deflection of Cut being
usually about one-half the length of the latter alone ; cell
2nd anal long and narrow, conforming to the elongate shapeof the wing.
Abdomen dark brown, the ovipositor yellowish horneolour. Tergal valves of the ovipositor slender, divergent,
gently upcurved ; sternal valves much higher, compressed,
the tips subacute.
Hab. Rhodesia.
Holotype, ?, Salisbury, Mashonaland (G. .4. K. Marshall).

_Paratopotypes, 8 ?.
Type in the collection of the British Museum ; paratypes
in the collections of Cambridge University and the writer.

.Dicranomyiafuscopleura, sp. n.
Size very small (wing of male about 4 ram.); antennae
dark brown, the flagellar segments with a short basal
pedicel; mesothorax dull brownish yellow, the pleura witha broad, dark brown longitudinal stripe; wings faintly
tinged with grey, the stigma bro~n ; vein Sc long, cell
1st M~ closed.

new or little-known Tipulida~.

339

Male.--Length about 2"8-3 mm. ; wing 3"9-'~ mm.
Rostrum and palpi dark brown. Antennm dark brown,
the flagellar segments oval, the intermediate segments withan indistinct basal pedicel. Head dark brown.
Mesonotum dull brownish yellow, the preescutum without
distinct stripes. Pleura somewhat brighter yellow, witha broad browrt longitudinal stripe extending from thecervical sclerites to the base of the abdomen, passing
immediately beneath the base of the haltcres. Mesosternum
brownish. Halteres long, light brown, the knobs and theend of the stem darker brown. Legs with the coxm andtrochanters dull testaceous yellow; remainder of the legs
broken. Wings with a faint grey tinge, the stigma roundedoval, brown; veins dark brown. Venation: Sc long,
Scl extending to slightly beyond mid-length of the longsector, Sc2 at the tip of Sci ; r at the tip of R~, bisectiw~g thestigma; Rs long, more than twice the basal deflcction of
R4+5 ; cell 1st M~ closed, large, longer than vein M~ beyond
it ; basal defection of Cul just beyond the fork of M.
Abdomen dark brown.
Hub. West Africa.
Holotype, c~, Lonji, about 50 miles north of Kribi, near
the Ulou River, Cameroun, altitude about 1000 feet,
July 18, 1919.
Dicranomyia fuscopleura is a tiny fly that is readily told
from related described species by the size and conspicuously
striped thoracic pleura.
Dicranomyia recedens, sp. n.
Anteunal scape dark brownish black, the basal flagellar
segments yellowish, the remaindcr of tlLe antenua~ darkbrown; thorax and abdomen dark brownish black; legs
brown, the tarsi pale; wings hyaline, the caudal half
darkened, the costal margin with six large dark brown
blotches ; Sc lotlg, r some dist-~nce from the tip o l / i t.
Male.--Length 4"8 ram. ; wing 5 ram.
/~'ema/e.--l,ength 6 ram. ; wing 5"7 ram.
Rostr,m and palpi dark brown. Antetmm with the s('aped~lrk browidsh black, the basal flagetlar segments yellowish,
soon passing into (lark brown. Head dark.
Mesothorax dark browlaish black, the types mouldy,
without distract markings on the pr~escutum.
Halteresblack~ only the extreme base of the stem paler. Legs withthe eoxm and trochanters blackish ; femora brownish, withan indis:inct pale subterminal rix~g; tibiae brown, the tips
23 *

340

Dr. C. P. Alexander onpale brown;" tarsi pale brown, only the terminal two or
three segments darker brown and somewhat inflated ; claws
long and slender, with a very long, erect basal tooth anda shorter appressed tooth beyond mid-length. Wings withtile cephalic half hyaline, the caudal cells strongly suffusedwith brownish grey, the membrane with a heavy dark brownpattern including six costal blotches; costal cell largely
darkened ; cell Sc largely pale, traversed by the first, third,
and fourth brown blotches ; the first of these areas occupies
the arculus ; the third at the origin of Rs, almost reachingvein M ; the fourth, largest, occupies the end of vein Sc
and passes through cell 1st R~ to beyond the fork of thesector ; the fifth blotch occupies the end of vein R1 and r,
and attains vein R4+5; the last blotch occupies the ends ofcells 2nd R1 and R3; slightly paler but broad seams along
the cord and outer end of cell 1st M2 and as seams alongveins R~+~, M, and Cu; dark clouds at the ends of veinsCuj, Cu2, 1st .4 and 2nd A, and ill the anal angle of thewing; veins dark brown. Venation: Sc very long, Sc2
ending just before the fork of Rs, Sc~ at the extreme tip of
Scb and exceeding it in length ; Rs long, strongly arcuatedat origin; r retreated back from the tip of R1, so that R1
beyond r is about half again as long as r ; cell 1st ~I~ closed ;basal deflection of Cul before the fork of M.
Abdomen dark brown. Male hypopygium rather large
und complicated in structure for this genus of flies. Ovipositor with the valves short, the tergal valves slender,strongly upcurved ; sternal valves transversely flattened andconnected with one another by a membrane.
Hab. West Africa.
Holotype, ~ , Lonji, about 50 miles north of Kribi, near
the Ulou River, Cameroun, altitude about 1(.00 feet,
July 17, 1919 (J..4. Reis).
Allotopotype, ?.
This handsome fly is undoubtedly related to D. recurvans,
Alex. (Los Islands), but is readily told by the wing-patternand venational details. The two species form a distinctgroup of the genus, in which r is at some distance fromthe tip of R1~ and the female ovipositor shows a peculiar
specialized structure. The recently described D. trigo~ia(Edwards) of Sumatra (Journ. Fed. Malay States Mus.
vol. viii. pt. 3, pp. 15, 16 ; July 1919) is evidently anothermember of this l)eculiar group.

new or llttle-k~own Tipuli~l~e.

341

Geranomyia ( Geranomyia) mashonica, sp. n.
General coloration brown, the thoracic pleura plumbeous;rostrum yellowish ; wings pale subhyaline, the stigma small,rounded-oval, pale brown, vein Sc tong.
Male.--Length (excluding rostrum) 5 ram.; wing 6"5 mm.;rostrum about 2"3 mm.
ttostrum moderately elongate, light brownish yellow
throughout.
Antennm with the scapal segments pale
brown, tile flagellum darker brown, oval-cylindrical. Headligl.t grcy, the genre more yellowish.
Mesonotum plumbeous brown, possibly discoloured, as
there is all irregular median yellowish area on the prmscutum. Pleura (lark plumbeous. Halteres rather short,pale yellow, the knobs scarcely darker. Legs with the coxm
dark plumbeous ; trochanters yellowish brown; remainderof the legs broken. Wings pale yellowish subhyaline;
stigma small, rounded-oval, pale brown; veins pale.
Venation: Sc long, extending to nearly opposite threefourths the l~ngth of Rs, Sc2 not far from the tip of Scl,
Scl alone being a little shorter than m ; r at the tip of RI ;hasal deflection of R~+~ a little less than one-half the longsector ; r-m short, less than m ; ceil lsl M2 rather long, theportion of MI+: between r-m and m being about equal to ora little longer than that portion beyond m ; basal deflectionof Cu~ at the fork of M.
Abdomen reddish yellow, especially the broad posterior
margins of the tergites. Hypopygium reddish, the ventral
pleural appendages long, greatly exceeding the shortpleurites; dorsal appendages relatively small, the tip
suddenly narrowed and acute.
Hab. ]~hodesia.
Hololype, (~ , Salisbury, Mashonaland ( G. .4. K. Marshall).
Collector's No. 23.
Type in the collection of the British Museum.
Geranomyia mashonica requires comparison only with
G. maculisti!/ma (Enderlein) of Madagascar.
The latter
is a differently coloured fly with the stigma dark brown, thebasal deflection of R~+~ very short and cell 1st M 2 small andsubquadrate.
Ceralocheilasflavirostris, sp. n.
Rostrum almost as long as the body, light yellow, theextreme base abruptly blackened; antennm with the basal

342

Dr. C. P. Alexander onsegments light yellowish, the flagellar segments dark brown;
general coloration of tlle body blaek~ ttle sides of the mesonotal pr*escutum reddish brown; halteres black; legs withthe coxae black, the apical tarsal segments pale; wings
subhyaline with a heavy dark brown pattern ; vein //2+3
straight, perpendicular to the sector; basal deflection of
Ca1 at about mid-length of cell 1st M~.
Male.--Length (excluding rostrum) 6"8 mm. ; wing
4"5 ram. ; rostrum alone 6 ram.
Rostrum elongate, in the male sex at least, nearly as longas tile body, the extreme base brownish black, the remainderof the organ very pale yellow. Antennae with the enlarged
basal segments conspicuously light yellow, the flagelhml
dark brown, the distal segments provided with very long
hair.~. Head dark brownish black, possibly discoloured,
paler adjoining the inner margin of the eye.
Mesouotal pra~scutum dark reddish brown, the lateral
margins very narrowly paler, the dorso-mediau area darker ;remainder of the mesonotum black. Pleura black. Haheres
black. Legs with the coxae black; troehanters pale testaceous yellow; femora brown, paler at the base; tibiae andtarsi darker brown, the apical tarsal segments pale whitish
brown, the claws reddish. Wings greyish subhyaline, witha heavy dark pattern, arranged as follows : the single darkbrown spot is located at Sc2, immediately above the origin of
Rs ; less intense brown spots on R2+s continued along tide
cord to the fork of Cu ; a similar but narrower seam at theouter end of cell Ist M~ ; a very sm~Al cloud at the origin ofRs; a large blotch at the b~se of M ; large spots in thecells, as follows: two in cell R, tlDe outermost muchthe larger, subequal in size to the seam on R~+~; four equidistant malks in cell M, each of the~e divided into two
unequal parts by a longitudinal obliterative streak in thiscell ; two spots in cell R~ the proximal one larger; a large
blotch at the end of vein 2nd A, entirely traversing the cell ;a small blotch in the middle of cell ]st A ; brown clouds atthe ends of veins Ms, Cu1~and Cu2 ; the apex of the wing incells/~, R~, and 2]//2 milky white; the dark areas on thewing are produced by the concentration of the microscopic
set~e which cover the membrane at these points ; vein R1
yellow, the remaining veins dark brown. Venation: Scl
ending just beyond the origin of Rs, Sc~ being almoste x a c t l y at this point; Rs evenly and gently arcuate;
R~+3 perfectly straight and perpendicular to the end of Rs,
so that cell R~ is almost a triangle; cell 1st M~ closed;new or llttle-known Tipulid~e.

3~:3basal deflection of Cul at about mld-length of the lower sideof cell I st Ms.
Abdomen black, the penultimate segment brighter.
Hab. West Africa.
Holotype, ~, Lonji, about 50 miles north of Kribi, near
the Ulou River, Cameroun, altitude about 1000 feet,
July 17, 1919 (3". A. Reis).
Paratype, ~, Grande Bassan, Jonehier, Ivory Coast, 1903
(R. Blanchard), in the Paris Museum.
Ceratocheilus flavirostris is readily, tohl by the dark eolourof the body, the pale yellow rostrum, and the very heavily
spotted wings. The short straight R~+a and the positionof the basal deflection of Cu~ is distinctive of this species.

[~ttAMPHIDINA,subgen, nov.
Rostrum long and slender, longer than the head. Antetmm with 16 segments.
Wings wxth Sc moderately
elongate, ending about opposite mid-length of Rs and not
close to R1 at the wing-margin; Sc~ at the extreme tip ofSct; R~+3sinuate, diverging from the ahnost straight R4+5 ;cell 1st M~ open by the atrophy of M; basal deflection of
Cul before the fork of M.
Type of the subgenus.--Rhamphidia (Rhamphidina) camerounensis, sp. n. (Cameroun).

Rhamphidia (Rhamphidina) camerounensis, sp. n.
General coloration dark brown, the thoracic pleura moreyellowish ; halteres brown ; wings hyaline, the stigma pale
brown ; cell R1 narrowed before its outer end ; cell 1st M:
open.
Male.--Length about 4'2 ram. ; wing 3"8-4 mm.
Rostrum long and slender, longer than the head, darkbrown; palpi dark brown. Antennm dark brown. Headdark brown.
Mesonotum brown, the lateral portions and the pleura
dull yellowish testaceous. Halteres dark brown, the stem
pale. Legs with the cox~e brownish testaceous; trochanterstestaceous ; femora dark brown; tibim dark brown, the tip
and all the tarsi broken. Wings hyaline, the stigma pale
brown; veins dark brown. Venation: Sc rather short,
Scl ending just beyond mid-length of Rs, Sc~ at the extreme
tip of Scl and exceeding it in length; Rs long, almoat~traight; R~+~ long, gently sinuate; cell Rt narrowed

344

Dr. C. P. Alexander on

before its outer end ; cell 1st M~ open by the atrophy of m ;basal deflection of Cui a short distance before the fork of M,
this distance usually a little less than the length of thedeflection of Cui alone.
Abdomen dark brown. Male hypopygium with thepleurites rather stout, broad at the basc, the inner face set
with abundant erect spinous setee ; two pleural appendages,
the outer appendage short, hcavily chitinized, the tip indistinctly bifid; inner appendage long, broad at the base,suddenly narrowed to the slender curved tip, which bears
a single long bristle at its apex; along the cephalic or
proximal margin of this appendage at about mid-lengtha group of about seven stout erect set~e. Gonapophyses
appearing as flattened blades whose posterior lateral angle
is produced into a long acute point; penis-guard curved
at the tip.
Hub. West Africa.
Holotype, g', Lonji, about 50 miles north of Kribi,
near the Ulon River, altitude about 1000 feet, July 18,
1919 (aT. A. Reis).
t) araloTotype, c~ .

RHAMPHIDIOIDES~subgen, nov.
Rostrum nearly as long as the head. Antennre with
16 segments, the scapal segments enlarged ; flagellar segments slender, with appressed vertieils. Legs long andslender; claws simple. Wings with vein Sc long, ending
nearly opposite the fork of the long sector, 8c2 far befbre
tlle tip of Sex; Scl and R1 close together at tile wingmargin, the space on costa between them about equal to ttle
basal deflection of Cul; r lacking; veins R~+3 and R4+5
strongly divergent at their outer ends, cell R~ being verybroadly trumpet-shaped outwardly ; cell 1st Ms closed ;basal deflection of Cul far before the fork of M. Male
hypopygium with the pleurites long and slender; twopleural appendages. Ovipositor with the valves very longand slender, the tergal valves especially so.
Type of the subgenus.--Rhamphidia (RhamThidioides)
venustissima, sp. n. (Cameroun).
Tt~e habitus of this beautiful little fly is quite unlike
typical Rhamphidia, and it is probable that the similaritythat seems to exist between the two groups will be found tobe superficial only when more material is obtained. Tilelegs are hmg and slender ; the wings with Sc very long andcl,se to R1 at the wing-margin and with Sco far back fromnew or llttle-known Tipulidae.

345

its tip, cell R3 very wide at the wing-marffin, and the basal
deflection of Cut before the fork of M all indicate a rather
isolated group. Leiponeura alluaudi, ttiedel, is very probably
a member of this subgenus. The biological notes by thecollector add another genus and species to the list of spiderweb Tipulidae and, curiously enough, this species, like theothers, has white feet.

Rhamphidia (Rhamphidioides) venustissima, sp. n.
tLostrum hrown ; antennm with the four basal segments
yellow, the remainder of the flagellum dark brown; mesonotum dark brown, the sides of the praescutum yellowish ;pleura yellow, spotted with b r o w n ; legs dark brown, thetips of the tarsi white ; wings subhyaline with a heavy darkbrown and grey pattern; basal deflection of Ca1 heft)re thefork of M ; abdomen yellow, the intermediate segmentswith two transverse brown bands that produce a close
banded appearance.
Male.--Length about 4"3 ram. ; wing 3"5 mm.
Female.--Length about 5"3 ram. ; wing 3"9 ram.
Rostrum moderately elov.gated, nearly as long as the head,dark brown; palpi small, yellow basally, the tips brown.
Antennm with the four basal segments bright yellow, theremainder of the flagellum dark brown.
Head darkb i'own.

Pronotum dull yellow.
Mesonotal praescutum deep
yellow, dark brown medially ; remainder of the mesonotum
dark brown.
Pleura dull yellow, spotted with brown.
Halteres dull yellow, the knobs dark brown, a more or lessdistinct dark brown band beyo~ld the base of the stem.
Legs with the fore and middle coxae marked with brown on
their outer fac~ s, the hind cox~e entirely yellow; trochantersbrown ; femora aml tibiae dark brown, the extreme base andtip of the latter pale ; tarsi with the metatarsi dark brown,
on the outer half passing into creamy white ; remainder of
the tarsi creamy white. Wings subhyaline with a heavy
dark brown pattern, consisting of five large radial blotches ;a sparse grey clouding in the posterior cells ; cell C yellow,
unmarked except tbr the narrow seam at h ; subcostal cellyellow, dark brown at the base and tip, and at Sc~; the fivedark brown areas are as follows : at arculus ; at the originof Rs, extending completely across cell R ; the stigmal
blotch, extending to cell 1st M2 ; a large area at the end ofvein R~+~ extending caudad to vein R4+~ ; end of cell R 3 ;the grey seams in the posterior cells include the remainder

346

Dr. 0. P. Alexander ono[ the cord; cell 1st M2; in the ends of the anal cells;in the end of cell Cul and very faintly across the posteriorcells in alignment with the fourth and fifth radial blotches
described above; veins C, Sc, and R yellow; remaining
veins dark brown. Yenation : Sc2 retracted far back fromthe tip of SCl, lying about midway between the origin of Rs
and the tip of Sc~ ; Rs long, arcuated at origin ; cell R8 very
wide at the wing-margin ; basal deflection of CUl somedistance before the fork of M, in some specimens this distance being greater than the deflection of Cua, in others
less.
Abdominal tergites yellow, the intermediate segmentswith two broad brown cross-bands~ one basal, the otherpostmediai, about equal in width to the yellow apices andmuch broader than th~ yellow band between them; the first
segment has only the apical yellow band; the apical segments are uniformly darkened; sternites similar to thetergites, but the brown markings less clear-cut. Male
hypopygium with the pleurites very long and slender,
narrowed to the tip ; pleural appendages two, the outermost
slender, arcuated, chitinized ; inner appendage longer, stout
at the base, narrowed to the tip which is slightly expanded.
Gonapophyses in the form of flattened yellow curved hooks
that are acutely pointed at their tips. Ovipositor with thetergal valves exceedingly long and slender, slightly upcurved
at their tips ; sternal valves long, the tips acutely pointed.
Hab. West Africa.
Holotype, ¢~, Lonji, about 50 miles north of Kribi,
near the Ulou River, Cameroun, altitude about 1000 feet,
July 17, 1919 (J. A. Reis).
Allotopotype, ~.
Paratopotype, c~.
"Resting on spider-webs in between the roots of trees."

Paratropeza ( Gymnastes) teueholaboides, sp. n.
General coloration black, two spots on the vertex, thedorso-pleural membranes of the thorax and the apices of
the halteres yellow ; femora with the tips swollen, black,with a narrow subapieal yellow ring; wings dark brown, thebase and two narrow cross-bands hyaline.
Male.--Length about 4"7 ram. ; wing 5 ram.
tZemale.--Length 6 ram. ; wing 5"6 ram.
Rostrum and palpi black. Antennm black, the flagellar
segments oval. Head black, the anterior part of the vertex
silvery pruinose and with a large yellowish spot at the inner

new or llttle.known Tipulid~e.

347

margin of the eye, these marks but narrowly separated by acapillary median brown line.
Prothorax black. 1VIesothorax black, the dorso-thoracic
membranes light sulphur-yellow. Halteres black, the tipsof the knobs conspicuously yellow. Legs with the coxar
and troehanters black ; femora dark brown, the tips broadly
swollen and blackened, immediately before the enlargementwith a narrow yellow ring; tibim brown, the tips broadly
blackened ; tarsi dark b~-own, the base of the metatarsus
yellow, this broadest on tile hind legs. Wings narrow, darkbrown; base of the wing and two narrow cross-bands pale,tile first of these cross-bands before the cord, the seeondjust beyond the outer end of cell 1st Ms. Venation: Sc
ending just before mid-length of Rs ; only the extreme baseof R2 preserved, and this in alignment with tile subatrophiedr so as to appear as a single weak cross-vein; r-m con,eeting with Rs before its symmetrical fork; cell 1st M~
long and narrow, broadened outwardly, the basal deflectionof Cul about at the fork of M.
Abdomen black, in the male with the posterior nlargiasof the tergites very narrowly and indistinctly yellow. Ovipositor born-coloured, tile valves rather long and slender.
Hab. Rhodesia (Melsetter l)istriet).
Holotype, ~ , Chirinda Forest, October 1905 (G. A. K.
Marshall).
Allotopotype, ?.
Type in the collection of the British Museum.
By means of the existing keys, Paratrot,eza teucholaboides
would run to the genus Teucholabis, Osten-Sacken, but acomparison with certain O,'iental species of lParalr~peza,such as P. ornatipennis (de 2Vfeijere) and P. flavitibia,
Alexander, convinces me that we have here to do witha highly specialized mcmber of Paratropeza, which gives
us a distinct clue as to the manner in which the reduced
radial venation of Teucholabis has been evolved. This is
produced by the atrophy of the tip of R~ beyond the radial
cross-vein and the straightening out of the base of R~ intoalignment with r. In the Oriental species ofParatroTeza ~including P. pictipennis (Edwards), in addition to the two
species mentioned abov% the tip of R~ is preserved, but theentire branch is small, nearly vertical in position and oftenwith the radial cross-vein inserted ~ear the middle of its
length. It may become necessary to relegate Paratropeza
to subgeneric rank under Teucholabis, giving us a caseentirely comparable to Gonomyia and its reduced subgenus
Leiponeura.

34:8

Dr. C. P. Alexander on

Trentepohlia (Trentepohlia) /uscoapicalis, sp. u.
General coloration dark brown, the thoracic pleura andabdominal sternites dull yellow ; tarsi and most of the tibi~
whitish; wings greyish subhyaline, the wing-tip darkbrown; petiole of cell R~ nearly one-half the length ot~
this cell.
Male.--Length 5"2 ram. ; wing 4"8 ram.
Rostrmn yellow; palpi dark brown. Antennae darkbrown, unusually long for a metnber of thin genus, if bent
backward extending beyond the wing-base; verticils long,especially a single vertici[ on each seg t~ent, arranged ina single seeund row. Head dark brown, brighter on theocciput.
Mesonotal prmscutum dull brownish yellow, dark brown
medially; remainder of the mesonotum dark brown.
Pleura dull brownish yellow. Halteres short, dark brown.
Legs with the coxm and troehanters dull yellow; femora
pale brown; tibim similar, soon passing into white ; tarsi
white ; femora with three short black spines near tile base,these possibly lacking on the posterior femora which areconcealed in the type. Wings greyish subhyaline, thewing-tip and narrow seams along the veins dark brown;
stigma scarcely darker than the wing-tip; costal and subcostal cells, the stigma, cell 2nd R1, all of R:, the outer thirdof Ra, and the tip of R~ darkened; narrow brown seams
along all the radial veins, along M1+2, and on Cu and its
branches; veins dark brown. Venation: R~+a beyond ra little shorter than r alone, and about one-third to onefourth the length ofR.~; petiole of cell R~ between one-thirdand one-half the length of this cell and considerably longer
than the basal deflection of R~+~.
Abdominal tergites uniformly dark brown, the sternites
dull yellowish.
H.&. West Africa.
Holotype, ~, Lonji, about 50 miles north of Kribi,
near the Ulou River, Cameroun, altitude about 1000 feet,
July 17, 1919 (J. A. Reis).
TrenlepoMia fuscoapicalis is a small species of the subgenus that is apparently closest to T. curtipennis (Speis.),likewise from Cameroun. This latter species is rust-yellow
with the abdominal segments narrowly ringed with brown ;the wings with a large brownish-yellow stigma and with the
apex suffused with yellowish.

new or llttle.knowa Tipulida~.

349

Tipula mashona, sp. n.
Belongs to the oleracea group; close to 7: soror,
Wiedemaun; antennal flagellum dark brown; generalcoloration grey, the prmscutum with three pale stripes thatare margined with dark brown, the median stripe split bya dark brown line.
M'ale.--Length about 21 ram. ; wing 20 ram.
Rostrum light grey above, the sides brown; nasus withlong yellow hairs.
Antennm with the first and second
segments pale browldsh yellow, sparsely grey-pruinose,
third segment yellowish brown~ darker at the end, remaining
segments dark brown, the basal swelling moderately
prominent. Head light grey.
Mesonotal prmscutum grey with three indistinct greyish
stripes that are distinctly margined with dark brown, themedian stripe split by a double capillary brown line ; lateral
stripes with the brown margins becoming obliterated on thelateral side; scutum grey, the lobes with brown markingsauteriorly ; remainder of the notum light grey. Pleurapale, light grey-pruinose, the dorso-pleural membranes dull
buffy yellow. Halteres long, the knobs dark brown. Legs
with the coxee yellowish, the mesocoxm and metacoxm
sparsely grey-pruinose ; trochanters dull brownish yellow;
femora brown, the tips darker; tibim pale hi'own, the tips
narrowly darkened ; tarsi long, dark brown, the base of themetatarsi a little paler. Wings pale grey, the costal region
brown, including cells C, Sc, 1st R1, and 2nd R1; a broad
subhy'aline streak, including most of cell R, the anterior
portion o£ M, the base of R3 and almost all of R5 ; a brown
seam alol,g Cu. Yenation : cell R~ smal], narrow at thebase, R3 almost in alignment with R:+3.
Abdomen discoloured ; the tergites apparently dark brownwith a distinct blackish sublateral mark on either side, thelateral margins broadly pale. Hypopygium pale. Male
bypopygium with the ninth tergite about as in T soror,
broad and flattened ; the caudal margin with a broad mediau
lobe that is feebly notched medially, the lobes roughened
and with the outer angle a little produced, smooth ; viewed
caudally, each of these lobes is seen to be produced ventrally
into a flattened blade whose caudal margin is densely covered
with blackened spinules.
The pleural appendages arealmost as in T. soror. Ninth sternite strongly carinate,
the dorsal inner angle with a dense tuft of yellowish hairs
directed inward. Eighth sLernite unarmed.
I~ab. I~ho(lesia.

350

On new or llttle-known Tipulid~e.

Holotype, c~, Salisbury, Mashonaland, March 1905 (G..4.
K. Marshall).
Type in the collection of the British Museum.
Tipula mashona is very closely allied to I : soror,
Wiedemann, but may be distinguished by the dark brown
autennal flagellum, the clear grey coloration of the head andthorax, and other characters.
IVephrotoma mossambica, sp. n.
Close to N. unic;ngulata, Alexander; prmseutal stripes
very broad, confluent or nearly so ; legs brownish black, thefemoral bases paler; wings with the apical ceils sparsely
pubescent, Rs short and straight ; abdominal tergites one to
five with a black median mark, segments six to eight ringed
with black.
Male.--Length about 13 mm. ; wing 15 mm.
Feraale.--Length about 18 mm. ; wing 16 ram.
Frontal prolongation of the head dull yellow ; nasus longand slender. Palpi pale brown. Antennal scape orange;
flagellum black; antennae moderately elongate, if bent
backward, extending about to the base of the abdomen.
Head orange, the occipital mark elongate, dull brown.
Pronotum light yellow. Mesonotal pr~escutum pale
whitish yellow with three very broad black stripes that arealmost confluent, the humeral angles of the ground-colour ;scutum black with only a narrow yellowish median line;
scutellum brownish testaeeous; postnotum yellow with
about the posterior two-fifths brownish testaeeous. P4eura
whitish, indistinctly marked with yellowish. Halteres brown,
the knobs yellowish. Legs with the coxm and troehanterspale yellowish; femora dark brownish black with the basepaler, more brownish, this narrowest on the fore legs, more
extensive on the hind legs; remainder of the legs darkbrownish black, less intense oll the basal half of the tibiae.
Wings with a strong brownish-yellow tinge, the wing-apex
passing into brown ; cell Sc yellowish brown ; stigma darkbrown ; an indistinct brown seam along the cord extendivg
to cell 1st M~ ; veins dark brown. Apices of cells R3, Rs.
and M1 sparsely pubescent. Venation as in N. unicingulata,
but Rs shorter and straighter, almost in alignment with thedeflection of R,+5 ; cell M1 more broadly sessile.
Abdominal tergites orange-yellow, the first tergite largely
black; tergite two with a linear black mark on the basal
half and a similar mark on the apical half ; segments threeOn certain British Freshwater Entomostraea.

351

to five each with a similar mark occupying the apical twothirds of the segment ; segments six to eight with a conspicuous black ring as in N. unicingulata, this including allof segments six to eight excepting the basal half of the sixth
sternite, which is o r a n g e ; sternites unmarked.
Hypopygium reddish orange; ninth tergite with a broad, rounded
posterior notch ; outer pleural appendage tapering to a longpoint.
The female is generally similar to the male, but the
occipital mark is less distinct, the prmscutal stripes confluent, the scutellum and posterior margin of the postnotum
daw'ker brown, the pleural markings darker. The tergal
valves of the ovipositor are long and straight.
Hub. Rhodesia (Melsetter District).
Holotype, ¢~, Chirinda Forest, October 1905 (G. ,4. K.

2]farshall).
A llotopotype~ ~.
Type in tbe collection of the British Museum.
Nephrotoma mossambica is closely related to N. unicingulata, Alexander (Transvaal to Cape Colony), in the
cingulated abdomeu and the apically pubescent wings. It
is readily told by ttle much more extensive black areas ou
tile mesonotum, the darker legs, the darker wings with thesector short and straight, and by the narrow black markings
on abdominal tergites one to six.

X L V l I I.--Notes on certain British Freshwater Entomostraca.
By ROBERT (~UItNEY, M.A.
TUE following notes refer to a few species taken during thepast summer, mainly in :Norfolk, some of which have n,.,t
previously been found iu Britain : - -1. Chirocephalus diaphanus (Prevost) a.
On Sept. 12, 1919, I found a number of specimens of
the Fairy Shrimp in a small pool on Bratley Heath by the* Daday, in his "Monograph of the Phyllopoda Anostraca" (Ann. Sci.
Nat. xi. 1910, p. 206), adopts the specific name stagnah's, Shaw. As amatter of fact, Shaw is antedated by King (1767), but in either case thename is inadmissible for this species under Al'ticle 31 of the Rules ofNomenclature (see Int. Rev. Itydrob., Suppl. vi. 1914, Heft 2). Had it
not been so, there would be three species in closely-allied genera to all ofwhich the same specificname might be attached. " Fortunately, only oneof them (Tanymastix stagnalis, Linn.) can properly claim that name.