0,, new or little.known Tipulid~e.

309

species except by the absence of the two reddish-orange
bands on the anterior segments. It also bore stolons, andhe considered it a variety of this species.
Allen found the breeding-season from IV[arch to June at
Plymouth.
Autolytus lugens, De St. Joseph, from Plymouth (Allen),has a comparatively small head, surmounted by a massive
median tentacle, the lateral tentacles being much smaller.
Four eyes. The body is small, but typical ; the proboscis
has only six denticulations. The proventriculus has twentysix to thirty rows of grey points and occupies segments 8-11.
This is one of several of the Syllids which requires
re-investigation, since it may be connected with other knowu
forms. De St. Joseph met with specimens having malebuds. Allen observed early stolons in January and February
at Plymouth, and a well-developed one in July.
Six specimens of Procerastea halleziana, ]Vfalaquin, were
procured amidst Ascidians from a raft moored in Cawsand Bay, Plymouth, in September (Allen). A brief, but
excellent, summary of the stolonisation of this form isgiven by Mr. F. Ports* along with other types of reproduetioa in the Syllids. In Procerastea halleziana, as shownby Malaquin, the twelve to fifteen new segments are intercalated in the middle of the stock, and not at the posterior
end as usual in the Syllids. Thus there may be in front
twenty to twenty-two original segments, fourteen to sixteen
of recent formation, and then eighteen to twenty more of
the original stock, the middle showing the more advanced
development of the foot. The head of the stolon is formedon the fourteenth segment. The parts soon assume thecondition of the adult. Dr. Allen has a further communication on this subject lately, an abstract of whichappeared in the notice slip of the Royal Society (1921).

X X V I I I . - - N , w or little-known Tipulid~e (Diptera).--VI.
,Ethiopian Species. By CHARLES P. ALEXANDer, Ph.D.,
F.E.S., Urbana, Illinois, U.S.A.
ThE material considered in the present instalment wasreceived for study from the Carnegie Museum in Pittshurg,
through the kindness of the Direetor~ Dr. W. J. Holla,d, and* Spengel's ' Ergebnisse und Fortschritte Zoologic,'Bd. iii. p. 30.

310

Dr. C. P. Alexander o n

the Curator, Mr. Hugo Kahl, and fi'om the Staatsmuseumin Vimma, through the kindness of the Custodian of theDiptera, Dr. Hans Zerny. The latter collection was one ofthe very greatest importance. The location of the typesof the ne~v species described herein is designated after each
description.

Dicranomyia "mascarensis, sp. n.
General eoloration brown ; wings greyish hyaline, stigmaoval, pale t)rown ; pale brown seams at origin of Rs andalong the cord; ,S'el etnti,g immediately before the origin
of R s ; cell 1st ~ closed; basal deflection of Gut immediately I)efbre the fork of 31.
Male.--Lcngth about 4"2 mm. ; wing 5"2 mm.
Rostrum and palpi dark brown. Antennae dark brown.
llead dark brown, dL,eoloured in the type.
Mesonotum dark brown, any possible pruinosity discoh,nred in the type. Pleura and sternum dark brown.
Ilalteres rather elo,gate, brown, the basal portion of thestem obscure yellow, the apices of the knobs a little paler.
Legs with the coxm d a r k ; troeha'nters obscure yellow;
remainder of legs teslaeeous-brown. Wings greyish subhyaline; stigma oval, pale brown; a brown eloud at theorigin of Rs; very imlistinct brown seams along the cordand outer end of ee]l 1st M~ ; veins dark brown. Venation:
Set ending immediately before the origin of Rs, Sc~
apparently close to the tip of Sel ; Rs gently areuated ;r faint, at the tip of Rt ; imter end of cell R s far proximadof cell Rs; cell 1st M~ closed, about as long as vein M~+sbeyond i t ; basal deflection of Cu1 a short distance betbre
the fork of 3/.
Abdomen dark browtb the basal sternites paler. Male
hypopygium with the pleurites very short and stout, theproximal face near the apex with t'hree cylindrical fleshy
lobes that are tipped with long bristles, one of these lobes
slender, areuate, the others shorter and stouter; proximalside . f pleurite extended caudad into a fleshy arm that issetigerous on proximal face. Ventral pleural appendage
much larger than pleurit% pale, subeireular in outline, theproximal margin extending proximad into a fleshy lobe with
two spines on the caudal margin near mid-length of the lohe.
Dorsal hook eonslfiCuous, ahnost straight, the distal third
gently carved, the tip suddenly narrowed to an acute point.

n e w or little-kno~on Tipulidm.
Hab.

311

Mascarene Islands.

Holotype, c~, Reunion (Sikora).
Type iu the collection of the Vienna Museum.

Gonom)'ia ( Leiponeura) mascarena, sp. n.
General coloration brown, tim pleura plumbeous, striped
longitudinally with pale yellow; posterior femora yellow
with two brown subterminal rings; wings clouded" withpale brown and whitish subhyaline ; small brown spots andseams along the cord ; Sct ending opposite the origin of Rs ;cell 1st M2 closed ; abdomen dark brown, the caudal marginof the segments conspicuously white.
Female.--Length about 5 ram. ; wing 4"8 ram.
Rostrum and palpi dark brown. Antennm brown, thesecond seapal segment obscure yellow apieally. Head pale
whitish, the vertex darker medially.
Pronotum ~,hite. Mesonotal prmseutum light brown withtbree confluent darker brown stripes; seutum brown, theproximal margin of each lobe obscure yellow; seutellum
obscure yellowish, darker basally; postnotum obscureyellow, darker posteriorly. Pleura plumbeous; a conspiclmns
pate yellow longitudinal stripe extending from behind thefore eoxm to the base of the abdomen; dorsal-pleural
membrane light brown. Halteres whitish, the knobs slightly
darkened. Legs with the eoxa~ and troehauters yellowish ;only one hind leg remains, femora obscure yellow with abroad brown subterminal ring with a narrow and lessdistinct brown ring before this at about three-fourths thelength of the segment, the yellow ring enclosed, narrow;tibim and metatarsi yellow, the tips narrowly infuseated ;remainder of the tarsi dark brown. Wings with a faintbrownish ling% variegated with whitish subhyaline andbrown ; stigma oval, grey; small brown spots beneathareulus; at tip of Sc, and origin of Rs; along cord andouter end of cell 1st M~ and at tip of R-2+a; er~stal marginof wing indistinctly whitish subhyaline, this including cells
C, So, and R1 ; vague subhvaline areas at the wing-tip, incell 1st M~, and at the end of'vein 1st A; veins dark brown.
Venation : Sq ending op! osite origin of Rs, Sc~ close to tipof Scl; Rs long, angulated and spurred at origin, only alittle shorter than R2+~; basal deflection of R4+5 a little
longer than r - m ; cell 1st 3[~ closed; m longer than the312

Dl'. C. P. Alexander on

deflection of M~ ; basal deflection of C//1 before the fork of
M a distance about equal to m.
Abdominal segmcnts dark brown, the caudal marginscoY)spicuously ringed with white; genital segment andowposltor horn-eoloured.
Hab. Mascarene Islands.
Holotype, ~ , Reunion (Sik,,ra).
Type in tile collection of tile Vienna Mus~,mn.
Trentepohlia ( J[ongoma) metatarsatra , Alexander.
19'90. Trente2)ohliametatarsatra, Alex. Ann. & Mag. Nat. Hist. set. 9,
vol. vi. pp. 41, 42.
The unique type of T. metatarsatra was in poor condition
when described. A male is at hand, which is here eharaeterised as allotypie. The specimen differs from the description of the unique type in tlle following regards : Head obscure yellow, slightly greyish pruinose adjoining
the inner margin of the eyes. The white tibial bases arebroad and pass insensibly into the brown tibial ring. Wi,gs
with r close to the fork of /~+~. Abdomen uniformly pale
brownish yellow, including the hypopygium.
3 l a l e . ~ L e n g t h 8-8"2 ram. ; wing 8"4 ram.
Allotype a~d two additional males fi'om B,koba-Usumhura, t)etween Lakes Victoria and Tanganyika, 1910
( Grauer).
Allotype in the collection of the ¥ienna Museum.
Lecleria ta'nganic~e, sp. n.
General coloration reddish fulvous, the prmseutal stripes
inconspicuous ; head bluish plumbeous ; legs obscure yellow,
the tips of the femora, tibiae, and metatarsi narrowly infuscated ; wings yellow, the origb) of R.~, the cord, and thetip of R~ rather narrowly seamed with brown; abdomen
brownish fulvous, including the hypopygium.
Male.--Le~gth 21-22 mm. ; wiL~g 18-1~3 ram. ; abdomenalone 16"5-17"5 ram.
Rostrum and palpi dark brown. Antenna~ with the seapal
segments obscure brownish yellow; flagellum light brown,shyellow. Head bluish plnmbeous, paler behind.
Pronotum dark brown medially. Mesonotum deep reddish
fulvous, the lateral praescutai stripes indicated, brown;new or little-k,own Tipulidae.

313

the median p,'mscutal stripe is indicated only as a narrow
line near the anterior margin of the selerite; remainderof the mesonotum ohseure fulvous~ slightly pruinose, thescutal lobes darkened. Pleura brown, sparsely pruinose.
Halteres light brown, the knobs dark brown. Legs withthe cox~e and trochantcrs light brown; femora yellow,
tim tip~ abruptly and conspicuously black; tibim andmetatarsi yellowish brown, the tips passing into dark brown ;remainder of the tarsi dark brown. Wings with a strong
yellowish tinge; cells C and Sc more saturated yellow ; conspicuous brown clouds at the origin of Rs, fork of R~+~;
paler clouds and seams at fork of Rs, along the cord, and at
the tip of R:; wing-tip faintly darkened ; wing-veins faintly
seamed with darker; veins brown. Venation: Rs about
one-third lon~er than the deflection of R~+5; cell 1st M,
subrectangular in outline; petiole of cell M1 about as longas the cell; Cu~ shorter than or subequal to the defiectioa
of Cul.
Abdomen brownish fulvous, including the hypopygium ;sternites obscure yellow.
Hub. Ex-German East Africa.
!tolotyp e, d', north-west of Lake Tangauyika, 1910
( Grauer).
Paratopotypes. 5 c~ c~.
Type in the collection of the Vienna Museum.

Lecteria vasta, sp. n.
Size very large; length of female about 40 mm. ; mcsonotal przescutum yellowish anteriorly, the pr~escutal stripes
indicated behind ; wings brownish yellaw with conspicuous
darker brown clouds and washes; fusion of M3 and Ca I
extensive ; abdominal tergites fulvous-yellow, trilineate withbrown.
Female.--Length 40 ram. ; wing 28 ram. ; abdomen alone
33 mm. Fore leg : femur 16 mm. ; tibia 19 mm. ; tarsus
15"8 ram. Hind leg: femur 20"5 mm. ; tibia 20"5 ram.;tarsus 10"5 mm.
Rostrum short, dark brown. Antennae with the basal
segment dark brown, spalsely dusted with greyish-yellow
pollen; basal segments of flagellum brownish, fading into
yellow, the terminal segments dark brown; flagellum withconspicuous verticils. Vertex obscure brownish yellow witha conspicuous, capillary, dark brown median line, darkest ou

314

Dr. C. P. Alexander on

the anterior part of vertex behind the antennal bases, subtended by a pale mark adjoining the inner margin of eyes;genre dark brown.
Prm)otum t)rominent~ brown, the scutellum sparsely
pruinose. Mcsouotal pra~,seutmn buffy yellow, clearer
anteriorly, and hcre bisected by a capillary dark brown line ;three brown stripes, the median one broadly divided andindicated only posteriorly, the anterior half replaced byyellow ; lateral stripes broad ; pseudosutural foveze conspicuous, bic(~lorous; scutum brown, the ceutres of thelobes darker brown; an iu,listinct~ capillary, brown medianline on the scutellum and postnotum. Pleura brownish
testaceous, the dorsal margin of the pleurites narrowly
darkened; area surrounding base of halteres pruinose.
Halteres brow,, the knobs dark brown, base ()f the stem
yellow. Legs with the cox~ and trochanters relatively
small, reddish brown; femora obscure yellow, becoming
clearer yellow before the conspicuous dark brown tips;
tibia obscure yellow, the tips narrowly and indistinctly
darkened; tarsi obscure yellow; legs hairy; metatarsi
unarmed at base ; hind tarsi short. Wings brownish yellow,
the costal and subcostal cells light yellowish brown; consi)icnous and extensive brown clouds and washes o n t h ewing-disk ; washes in the bases of cells R and M and oil thebasal half of cell R~ ; large and conspicuous clark brown
clouds at the origin of Rs, at See, and at r; paler but extensive clouds along tile cord, at the end of vein R2, along thelongitudinal veins, and as a conspicuous blotch beyond midlengLh of vein 1st A in cell 1st A. Venation: Fusion of
Cut and M s extensive, longer than the outer defl('ctiono[ M3 alone. The :right wing of the type has an irregularcross-nervure extending across the base of cell M s from vein
Mzto Cul.
Abdominal tergites bright fulvous-yelh)w, the tergites
narrowly trilincate with dark brown; lateral stripes also
including dorsal margins of sternites; sternites obscureyellow with an interrupted, paler brownj median stripe.
Hub. Cameroun.
Hololy]Je, ? , L~,lodorf~ February 27, 1914 (A. L Good).
Cam~egie Museum, Accession No. 526~.
Type in the eoll(~ction of the Carnegie Museum.
Lecleria vasta is the largest member of the tribe Eriopterini as yet made known. In the other species of theafricana group in which both sexes are known (@iea~a,Alexander, alricauda, Alexatidcr, pluriffuttata, Alexander) thenewor llttle-known Tipulidte.

315

two sexes.are approximately equal in size. By analogy, thedimensions of the male of L. vasta should be approximately
those given for the type-female.
Co~osia malayasya, sp. n.

General eol(>ration fiaivons-buff, the abdomen more yellowish ; wings, light yellow, the longitudinal veins withseries of eonspieuous brownish-yellow spots; r and thebasal defleetion of Cul short and straight.
Male.--Length 17 ram. ; wing 13'5 ram.
Rostrum fulvous ; palpi dark brown. Antennm with thebasal segme~lt brown; second segment and the fusionsegment of the flagellum dark brown; remainder of themltenn~e brownish yellow. Vertex dull grey with a capillary, dark brown, median line; gena~ and occiput fulvousbuff.
General coloration of thorax fiflvous-buff, the prmseutalinterspaees with brown setigerous punctures.
Pleurabrownish yellow. Halteres brownish yellow. Legs brownish yellow throughout. Wi,gs light yellow, the eostal
cross-veins seamed with darker yelh)w ; eonspieuous brownish-yellow washes at the origin of Rs, along the cord, andvein R~; series of brownish-yellow dots along the longitudinal veins; a brown cloud near mid-length of costa andat the tip of vein 2nd A ; veins yellow, the areas traversedby the brownish-yellow spots slightly darker. Venation : aseries of cross-veins and spurs in the costal cell; Sc:~farfrom the tip of Sca; r short, subtran~verse; r - m immediately
proximad of m; vein 2rid A slightly angulated at t i p ;basal defleetion of Cut short and straight.
Abdomen obscure yellow.
Hab. Madagascar.
Holotype, c~, collected bv Sikora.
Type in the collection of the Vienna Museum.
Compared with the smaller C. irrorata (Wiedemann), thepres(mt insect is ~otable by its large size and yellowish
coloration, especially of the wings. The spots along thelongitudinal veins are relatively larger alad fc~ er il~ number.
I)SEUDOLI MN OPHILA, Alexander.
('J~ALOLIMNOPHILA~sul)gon, nov.

Similar to Pseudolitnnot)hila ~ Alexander, s. s., differing in316

Dr. C. P. Alexander on

the possession of a supernumerary cross.vein in cell R2.
The case is entirely analogous to the subgenus Dicranophragma, Osten-Sacken, in the genus Limnophila, Macquart.
Type of tile subgenus.~Pseudolimnophila (,Calolimnophila)rex, Alexander (Uganda).

Pseudolimnophila ( Caloliranophila) princeps, sp. n.
General coloration yellowish brown; first flagcllar segment pale ; mcsonotum with a capillary, clark brown, medianline; wings brown, spotted and clouded with darker, thecostal margin alternately yellow and brown; abdominal
sternites bicolorous.
Male.-- Length about 9 mm. ; wing 10"5 mm.
Rostrum and palpi brown. Ptntennm with t h e first
segment pale, sparsely silvery-pruinose; second segment
brown; first flagellar segment conspicuously light yellow;
remaining flagellar segments dark brown with a conspicuous
white pubescence.
Head brown with a greyiah-yellow
pollen ; vertex very strongly narrowed behind.
Pronotum brownish yellow, dark brown medially. Mesonotal praeucutum yellowish brown with a capillary brown
median line; lateral margins of praescutum broadly paler
brown, enclosing a circular yellow spot immediately behindthe pseudosutural fovem ; extreme anterior margin of pr~scutum narrowly darkened ; scutum light yellowish brown,
the median area and each lobe indistinctly lined with brown ;a brownish-black spot on the lateral margin of tbe prmscutum above the wing-root ; scutellum and postnotum
light yellowish brown with an indistinct brown median line.
Pleura yellowish testaceous, the dorsal pleurites largely
suffused with brown. IIalteres short, dark brown, the baseof the stem paler. Legs with the coxm pale, testaceous, ~heextreme bases darkened; remainder of legs pale bl'ownish
yellow. Wings with a strong brownish tinge, spotted andclouded with still darker brown, these areas distributed asfollows : At origin of Rs, tip of Sc, above the fork of/?2+3,
tip of R1, at the supernumerary cross-vein in cell//:, tip of
R2, along the cord and outer end of cell 1st M~; more diffuse
clouds at ends or' the longitudinal veins ; a series of about
five small spots behind vein Cu ; the anterior region of thewing in the radial ceils is variegated with yellow, these spots
lying between the hrown spots, the most conspicuous beyond
Scl and Rl; veins dark brown. Venation: A supernumerary cross-vein in cell Re at about two-thirds the lengthnew or llttle-known Tipulid~e.

317

of vein R2 ; petiole of cell Ml about twice m ; basal deflection of Ual beyond the fork of M.
Abdomen dark brown, tile caudal margin of the tergites
very indistinctly paler; sternites dark brown, a little moretitan the caudal half of each segmellt pale brownish testaceous.
Hab. Cameroun.
Holotype, ~ , Lolodorf~ January 28, 1919 (J..4. Reis).
Carnegie Museum, Accession No. 6305.
Type in the collection of the Carnegie Museum.

Pseudolimnophila (lPseudolimnophiIa) fulvipennis, sp. n.
General coloration dark brown; mesonotal prmscutumwith conspicuous erect set,e; haltcrcs light yellow; legs
dark brown, the femoral bases conspicuously yellow ; wings
strongly fulvous; abdominal tergitcs light brown, narrowly
trilineate with darker brown: sternites obscure yellow.
Female..--Le~gth 10"5 ram. ; wing 10'4 mm.
Rostrum and palpi dark brown. Autennm with thescapal segments dark brown; basal flagellar segments
yellow basally, becoming darker apically ; remaining flageltar
segments light brown, darker towards the end of the organ.
Head grey, the vertex darker mediAly.
Pronotum dark grey, pruinose. Mesonotal pr~escutum
dark brownish grey, the median area brown ; entire surface
of prmscutum with coasl)icuous erect set,e; remainder ofmesonotum dark brown ; scutellum with conspicuous erectsetm; postuotum naked.
Pleura dark brown, sparsely
pruinose. H.alteres light yellow. Legs with the coxm
dark brown, sparsely pruinose; trochanters light yellow;
remainder of legs dark brown, the femoral b~ses broadly
and conspicuously yellow. Wings with a stro~Jg fulvous
tinge, more saturated, and becoming almost brown in thecells distad of the cord; stigma elol~gate-oval, brown;veins brown. Ve~Jation: Scl ending immediately before
the fork of Rs, Sc2 at tip of SCl; Rs elongate, strongly
arcuated at origin; R~+~ a little less thau one-half Rs,
rather strongly arcuated ; r near tip of RI ; petiole of cell
M 1 a little longer than the basal deflection of Uu~, the latterat between two-thirds and three-fourths the length of cell
1st M2.
Abdominal tergites light brown, narrowly trilineate withdarker brown ; sternites obscure yellow. Genital segment
obscure yellow dorsally, dark brown ventrally ; valves ofthe ovipositor horn-coloured.

318

Dr. C. P. Alexander on

Hab. Madagascar.
Holo@pe, ? , collected by Sikora.
Type in the collection of the Vienna Museum.
Pseudolim,ophila (Pseudolimaol~hila) recens, sp. n.
General coloration light brown, 1)ostnotum and thoracic
pleura sparsely prulnose; wings nearly hyaline, stigma
scarcely apparent; r at tip of R~ and near mid-lengthof R2.
Male.--Length about 5 ram. ; wing 7'2 mm.
Rostrum and palpi light brown. Antmma~ short, brown,
the basal seapal segment darker; first flageilar segment
brightened at extreme base. IIead light brown, more
greyish adjoining the inner margin of eyes; head not
str~mgly narrowed behin(I.
Mesonotal prmseutum with three light hrm~n, confluent
stripes; Immeralregion and lateral margins l~roa(lly paler;pseudosutural fovem small, oval, pale reddish ; seutum andpostnotmn light grey pruinose ; scutellum obscure yellow.
Pleura light yellowish hrown, sparsely grey prumose.
tIaltcrcs pale, the knobs slightly infuscated. Legs with thecoxm and trochanters pale whitish yellow; femora lightbrown; tibim brown~ the tips rather broadly dark brown;
tarsi brown.
Wings nearly hyaline; stigma scarcely
apparent; veins pMe brown. Venation: Scl ending opposite the fork of Rs, 8c2 longer than SCl and near its tip;
Rs angulated and more or less spurred at origin; Re+ aapproximately one-half of Rs, not conspicuously arcuated,about twice tile basal deflection of Cul ; r at extreme tip of
R1 (which is subatrophied beyond it) and just befi)re midlength of R~ ; petiole of cell MI a little shorter than R~+a ;m shorter than the deflection of Ms; inner end of cell
1st M~ rather conspicuously arcuated; basal deflection of
Uul near two-fifths the length of cell 1st M:.
Abdomen light brown; a brownish-black subterminal
ring ; hypopygium obscure yellow. Male hypopygimn u'ith
the pleural appendage broad-based, pale, the apex a short,recurred, black hook.
Hab. Madagascar.
Holotype, c~, collected by Sikora.
Type in tile collection of tile Vienna Museum,
Limnophila sikurai, sp. n.
Mesonotum testaceous-yellow, thoracic pleura infuscated ;halteres yellow ; wings with a greyish-yellow tinge, spottednew or little-known Tipulid~e.

319with light brown, this pattern including a series of spots at
the ends of the longitudinal veins around the wing-margin ;Rs long, in alignment with R~+3 ; r far from tip of R1 ; cell
M1 about as long as its petiole; basal deflection of C'ax atfrom one-fourth to one-fiftil the length of cell 1st M~.
Female.--Length 6"8 ram. ; wing 7"1 ram.
Rostrum and palpi brown. Antennm short, brown, theflagellar segments with a dense white pubescence. Headbrown, sparsely grey pruinose.
Pronotum brownish te~taceous. Mesonotum light testaeeous-yellow, unmarked.
Pleura infuseated, contrastingwith the pale mesonotum. Halteres yellow. Legs yellowish. Wings with a greyish-yellow tinge ; stigma br~w~l ;wing-membra,m spotted with light brown, distributed astbllows: Conspicuous brown clouds around the witJg-margin
at the ends of the lollgitudinal veins ; seams along the cordand outer end of cell 1st M2, origin of Rs, fork of M~+2;
pale washes in the bases of cells R to 2ud A and ia the analcells opposite the origin of Rs ; cells C and Sc light yellow ;veins brown, those in the costal region paler. Venation:
Sel ending shortly before the fbrk of Rs, ,~c~ at its tip ; Rs
long, gently arcuated at origin, in alignment with R~+3;
R2+a shorter than the basal deflection of Cu~ ; r very faint,
removed from the tip of 1~1 to a distance a little longe,' thanthe basal deflection of Cua and on R~ about its own length
beyond the fork of Rs; iL~ner e,Jds of cells R3, Rs, a~d 1st
M.2 about in alignment; cell 1st M~ elongate-rectangular,slightly widened distally ; petiole of cell M1 approximately
as long as cell; basal deflection of Ca1 at about one-fourth
to one-fifth the length of cell 1st Ms.
Abdomen dark brown, the basal sternites a little paler.
Ovipositor with the valves very long and straight, horneoloured.
Hal). Madagascar.
Holotype, ?, Fort Dauphin (Sikora).
Ty pe in the collection of the Vienna Museum.
This interesting crane-fly is dedic~ted to the collectol', who
has discovered many interesting species of ti~ese tiles in
Madagascar and the Mascarene Islands. The fly should
probably be referred to the genus Pilaria, Sintenis, rather
than to Limnophila, and the discovery of a male specimea
would presumably confirm this reference.

Eriocera evanescens, sp. n .
General coloration brownish black; anteunm short inboth sexes; wings with a strong brown tinge, most i~tense320Prof. D. M. S. Watson on

along the costal region; Sc long, cell 1st M2 relatively
small, tending to be open by the atrophy of m ; cell /la/llacking.
Male.~Length 12 ram. ; wing 11 ram.
Female.--Length 20 ram. ; wing 15 ram.
Rostrum and palpi brownish black. Antcnnm short inboth sexes, black. Head brownish black, paler adjoining
the inner margin of the eyes.
Thorax brownish black, sparsely dusted with brown.
Halteres and legs brownish black. Wings with a strong
brown tinge, the costal regiort more saturated, this intense
coloration including the costal and sttbcostal cells ai~d theradial region to the wing-apex; veins dark brown. Venation: Sc very long, Scl ending approximately opposite r,
Sc2 some distance from tim tip of S'c~, the latter alone being~Lbout equal to the deflection of R~+~ ; Rs elongate, arcuatedat origin; cell 1st M~ open or closed, m tending to beevanescent; veins beyond cell 1st M2 very long an,I parallel;
cell M1 lacking; has~l deflcctiou of Cul beyond the forkof M ; Cu2 and the basal deflection of Cux subequal.
Abdomen black with a brown pollen. Abdomen of
female relatively elongate; valves of ovipositor elongate,acicular, black, the apices of tergal valves horn-coloured.
Hab. Cameroun.
Holotype, c~, Mietet, 200 miles inland, east of Batanga~
June 20, 1918 (A. L Good).
Allotopot~pe, ?, in ccpula with type.
Carnegie Museum, Accession No. 6317.
Type in the collection of the Carnegie Museum.

X X I X . - - O n the C~elacanth Fish.
By D. M. S. WATSON,University College, Londc,n.
FOR some years I have been iHterested in Coelacanth fislb
because, although commot,ly.included with tt~e Osteolepids,
they differ from those forms m many respects, and have ins me ways marked resemblances to the Teleosts. I therefore
investigated the structure of 21iacr,po,,a in specimens partly
or' my own, partly lent me by Mt'. G. E. Dibley, F.G.S.
Whilst I was actually writing this paper I received from
Dr. E. A. Stensio a copy of his great work on the 'Triassic
Fishes from Spitzbergen' (Vienna~ Adolt Holzhauseu, 1921)~