1>4axxxvii, '26]

ENTOMOLOGICAL

NEWS

44

Und.escribedSpeciesof Crane-Flies from the Eastern
United. States and Canada. (Dipt. : Tipulidae).
Part II.
By CH,rnr,os P. Ar,txaNoen, Massachusetts Agricultural College, Amherst, Massachusetts.
In the present paper a few of the more interesting novelties
that have recently come to hand are'described. These were
included in extensive collectionssubmitted by Professor Rogers
and Mr. Curran, and smaller lots received from Dr. Crampton,\1[r. Lacroix and \4r. Shannon. The very interesting Heratonr,a was included in the extensive colllectionsof th,e \,'iEnn3
I{useum, kindly sent to me for study by Dr. Zerny ln 1921.
The flv was described at that time, but the diagnosis withheld
from press in the hope that more material would be forthcoming in some one or another of the extensive collections of North
American Tipulidae now being studied. No further material
has come to hand, holever, and it seems best to describe thespecieswithout further delay. Mv sincere thanks are extended
to all of the gentlemen meutioned for their kind co-operatio,nin making known this still insufficientlv-known fauna. Wher-eENToMoLoCIcAL NEws

[Feb., '26

llot mentioned to the contrary, the types are preserved in thewriter's collection.
Dicranomyia rogersiana sp. n.
Generalcoloration shiny brown ancl yellow; antennaebrownish black througho,ut; heaclgray, the center of the vertex black:ir-resonotalpraescuttlm with three broacl clarker stripes; wings
with a faint brownish tinge, stigrna ova1, clarker brown; Sc
long, .Sc1and Sc2 sllbequal; cell ls/ M2 closed; male hypopygium with a single dististyle that is narrorvecl at apex into aslender finger-like lobe.
d Length about 4 mm.; wing 4.8 mm, I I-ength abor-rt5
rim.; wing 5.4 mm.
Rostrum and palpi brownish black. Antennae brownish
black throughont, the flagellar sesJmentsshort-oval, becoming
more elongate outwarclly, the verticils longer than the segments'
Heacl dark gray, the center of the vortex black.
Pronotum dark brown above, paler laterally. \'lesonotal
praescutum shiny yellow with three broacl shiny brown_stripes,
ihe rnedian one broad, more widened posteriorly; lateral stripes
widely separated {rom the median one, occtlpying the lateraloi the praescutum and not confluent with the scrrtal-arginvittae; remainder of mesonotum shiny light brown. Pleura
dark brown. In the type male, the co ors are much paler ancl
the specimen is presumably teneral. Halteres short, yellow, theknobs brown.
Legs with the coxae and trochanters brownish testaceous:femoia dark brown, the basespaler; tibiae and tarsi brownish
b1ack.
Wings with a very faint brownish tinge, the oval. stigma
darker-brown; veins dark brown. Macrotrichiae of veins relatively long and conspicuons. Venation: Sc long, ending 9pposiie two--thirds the length of Rs (?) to four-fifths this distance (d) Sc2 at tip of Sc1, Rs arcuated to slightly angulatecl
at origin; r at tip of R1, provided with macrotrichiae,the,tipof R1 pale and subobsolete;cell Ist M2large, short-rectangular,
about one-half longer than vein Ma beyond it; ttt-ctl, close tolork of M. In thJ female, m is longer and arctrated
Abdomen clark brown, the ninth se€imentof male more yeilowish; hypopygium dark. \4a1e hypopygium with the basistyles elongate, with a simple lobe near base of the ventro-mesal
ispect. A single dististyle, this broad on basal two-thirds,
the apical third suddenly prolonged into a slende,r,finger-like
lobe; outer face of style with a few long powerful setae, thexxxvii, '25]

EN'TON,{OLOGICAL

NEWS

lowcr or cephalic face with more abundant microscopic setulae.
L)vipositor with the tergal valves slender, acute at tips, gently
upcnrved.
I'Iubitat.-Georgia,
Florida.
Holotype: 3, Gainesville,
County,Florida,May
30,
1924 (1. S. Rogers); Col'\lachna
lector's No. 156. ,lllotyfe : 9, 2 miles north of Vienna, Dooley
Contrtv, G,eorgia.Jrrne 1, 1923,at light (/. S. Ro.gers).
This interesting cranc-fly is named in honor of my friend,
Professor J. Speed Rogers. Of the r.lescribed
Nearctic species
the 11ymay be confusedonly with D. globithorar Osten Sacken.
from which it differs in the normal structure of the mesonotum.
the venation, anc'lstmcture of the male hypopveirrm. The t1'p^
is preservedin the ',vriter's collection,the allot1'pcreturned t'r
Professor Rogers.
Dicranomyia lacroixi sp. n.
General coloration brorvnish cchreous. the rrraescutum withthree conspicuous dark hrown stripes ; pleura- rrnif or-rnly ochreolrs; antennaeblack tlrrorrshont: wings narrow. cell 1s/ I,fclosed; male hvpopvgium rvith a single distisfv-le,this producecl
into an elongate porn'erful rostrum bearing a single small spine
near midlensth.
d Lerqth aborrt6 mm.: wing 6. 9 m nr .
.Rostrtrmbrownish vellorv, the paloi black. Antennae blacl<throughor.tt.the flrqe1lar segments oval with short verticils.
Head clark qray, the anterior vertex nlore infuscated,the occiput palinq into brou'nish ochreous; anterior vertex about onehalf vviclerthan the diameter of the basal scapalsegment.
Pronotnm brownish ochreous lvith a broad, derk brown,
dorsal strioe. \,Tesonotrrmbrownish ochreous the praescutunr
with three conspicnous dark brou'n stripes, the sfiort lateral
stri nescrossi ngthe suture ar r r l includinq t he scut al lobes; r . rrainder of mesonotum dark-cololerl. pruinose. Pleura uniforn.rly brownish ochreous, this color' lil<ewiseincludins the
postnotal pler.rrotcrgite. Halteres relativelv short. dark brorvn,
the extren.rebase of stem yellon,ish.
Legs rvith the coxae and trochanters obscure yellow; remainder o{ legs elongate,dark brorntn,the femoral basespaler.
Wings long and nal'row, tinged with yellowish; a vag'1redtrsky seam alo'ng vein Cu"1 and the anal angle strongly infu.scatecl; r'eins of the costal region yellou'ish, the distal andposterior veins darker. Venation: ,9c1 ending about opposite

47

ENToNroLocrcAL
NEws[treb., '26

one-fifth the length of Rs, Sc2 not evident; Rs gently arcuated,about one-half longer than the basal sectionof liaf 5 wlri:L
almost in alignment; r faint, at extreme tip of R1 ; ce71lst M2
closcd, rectangular, approximately equal in length to the veins
lrelond it; transverseelementsclosing cell 1s/ ,4{2 very pale;nrcu at fork of ,tf.
Abdomen bro\r'n, the sternites pa1er. Male hypopygium with
the ninth tergite deeply notched medially, each lateral lobe
rounded and with about a dozen powerful elongate setae, withzrdclitionalsmaller ones. Basistylesrelatively small, the mcsrl
lobe sler.rder,the setae on its cephalic face longer. A single
rleveloped dististl'le, this a small fleshy lobe that is provided
with long setae, the mesal face produced mesad into a long,
gently cnrved rostrum with a single, gently curved spine near
rlidlength of cauclalrlargin; apex of rostrum with a few small
setae. Gonapophyseswith the mesal lobe long and slender, thet ip s ubac ute .
Ilttbitat.-\[assachusetts.
Holotype: 3, Rochester, Plymouth County, on cranberrv bog, July 9, 1924 (D.S.L'r,croir).
Dicro.nomyia lacroiri is named in honor o{ the collector o i
the type-specimen,I{r. Donald Lacroix. The species is very
isolated although bearing a superficial resemblanceto D. longipertnis (Schummel), to which species it would run by theauthor's key to the Eastern species ol Dicranomyia (.Cornell
Univ. Agr. Exot. Sta., lVfem. 25 : 894-895; I9l9).
The fly isreadily clistinguished by the diagnostic characters indicatedabove.
Dicranomyia cramptoni sp. n.
General coloration dark brown, the pleura yellowish graypruinose; antennae black throughout; rostrum clark: halte es
short, the knobs infuscated; rvings tinged with gray, the stigrna
brown; Sc1 long, ending opposite or just beyond the origin ct
Rs.' male hypopygium large and very complicated in structure.
3. Length 5.5-5.8mm.; wing 6-6.5 mm. 9. Length about(t.5-7 mm.; wing about 6.2 rnm.
Rostrum and palpi brownish black. Antennae black throushout, the flagellar segment.soval. Head gray, the anterior vertex
about twice as wide as the diameter of scape.
Pronotnm dark brown. Mesonotum dark brown. the praescutum laterally with a sparse yellow pollen, the median stripe
remaining shiny, scutellum dark brown with an ob,scureyellow
basal median spot; postnotum dark brown, gray prninose.

xxxvi i , ' 26]

ENTOI{OLOGICAI-

NtrWS

I'leura clark brown, heavily yellowish gray pruinose. Halteres
relatively short, obscttt'evellow, the knobs dark brown.
Legs with the coxae and trochanters obscure yellow; femora
light 6rown, the basesextensivelymore Yellowish'the tips narrorvly clark 6ro*lt; tibiae brown, ihe tips-somer'vhatdarker, tarsi
br-ownishlrlack.
\\rings with a faint grayish tinge; stigma small' circular,hrown.-veins dark brown. Venation: Sc1 ending opposite orslightly beyond the origin of Rs, Sc2 sorne distance from its
tip, Si, aione about equal to or long'er than m'cu; vein R1
curved toward Rz*.3 at the stiqma. the tip pale ancl subobsolete; Rs arcuated, about twice the basal deflectionof Raj-;;
cell l.rt ,4,12closed, rectangtllar, shorter than an1' of the veins
beyond it: nt-crt at or before the fork of ,[f.
Abclominal tergites dark brown, the sternites obscure llrownish yellor,i': hypopygium dark. Male hypop{g1um very- large
and-complicatedin structure. Ninth tergite with a stout lobe ateach caudo-lateral angle, each of these providecl with two tuftsof stout vellow setae, the space between the lobes extensive,
broadlv i-shaped. Basistvle stout, the ventro-mesal lobe large
rncl cornplicatid, wittr a dusky. more basal, cylindrical lobule
terminating in a brush of yellow setae; apex of lobe broadly
expanded into a flattenec'lpale blade that is further split into
thiee conspicuous divisions, the margins of which are conspicuouslv fringed with setae. At the baseo.f the rrentral dististyle,on ventral side, a powerful, terete, boomerang-shapedstructure,
pale in color, directed ventrad and caudad. Ventral dististvle
large and fleshy, the usual rostriform strttctttrc here 'lre:',""
complicated by supernumerary outgrowths, including a 1ong,
pale tail-like blade near the usual two spines; apex of rostrunt
expanded into two flattened, divergent blades, the more basalof rvhich is densely set with setae and short scinulae. r)orsal
dististylestrongly curved,the tip sucldenlvnarrowe.l to a" a: 't'
point. Ovipositer with the tergal valves relatively small ancl
slencler, gently upcnrved, projecting very slightly beyond thelevel of the stout, straight sternal valves.
Habitat.-Massachusetts. Holotglte: d, Fish-hatchery, near
Sunderland, Franklin County, altitude 200 feet, October 16,
192+ (C. P. Ale.ranrler). Allotoltotype,?. Paratopotypes,3 alcoholicdJ, October 15,I92+ (G. C. Cram,pton);3 33,3 ??, withthe t1,pe(C. P. Alerander).
Dicranomtia crarcptoni is named in honor of Dr. G. C.
Crampton, who collected the first-discovered specimens. T!:

49

ENToN{oLocrcALNtrws

flteb', '26

flies were s\\'ept from small patches of luncws in a single restricted iocality. The fly is very different from any known to
the writer. The structttre of the male hypopygium is exceeclingly complicatedby outgrowths that involve not only the basistyles but even more strikingly the rostral region of the ventral
dististyle. The hypopygium is more complicatedin structure
than irr either of the Palaearctic species,D. ntagnicattda Lund'
strotn (Northern Europc) .rr D- rncgactttt'daAlexancler( Ncirthern Japan).
Hexatoma microcera sP. n.
General coloration gray pruinose; antennae of male short'
if bent backrvarclbarely attainins the wing-root; praescutrrnr
rvith three blackish stripes ; legs comparatively short and stout ;wings subhl'aline,faintly tinged with brown; r on R2f 3 near
the fork.
d. Length 5.8-6.5mm.; wing 7.1-8 mm.
Rostrum short, brol'n, prr-tinose;palpi clark br-own. Antennae relatively short, if beni backwarclbarely attaining the "vingroot, cl:rrk b.ot"n; seven antennal segments, the terminal one
microscopic; first flagellar segment aborrt equal to the follor'' irlg
two taken together; flagcllar segments 2, 3 and 4 gradirally
shortenecl. Hcad dark brown, the orbits narrowly light gray
Druinose,the low vertical tubercle likewise prttiuose'
Xlesonot'.rnrlight gray, the Praesctlttlm with three blackish
stripes; sctltum gray, the centersof the lobes blacl<ish;scutellum and postnotitm'gray pruinose. Pleura dark brown, pruinose. the dorsoplerrral membra.neclark brown. Jlhorax clothecl
rvitl-r mocleratell' long erect white setae. Halteres pale, theknobs infuscatecl.
I-egs comparatively short and stout; coxae gray pminose;
femora reddish br-own,the tips passing into black; tibiae andbasitarsi similar, thcir tips narrowly darkened; remainder oftarsi dark brown.
Wings srrbhyalirre,{aintly tinged rvith brorvn in cells C andSc, along Rs and the radial veins and along the cord; veins darkbrown. \"enation: Sc1 enclingimmediatelybe{or-et1-refork of
Rs, Sc2 some distancc from its tip, Sc1 alone abo'ut equal tor-m; r on ,R2f;j a 1itt1emore than its o'nl'nlength bcfot'c therl|a ar-rd
fork; cell -Ii2 larger than cell Znd R1; veins IIt*2,
Ca1 strbevanescentat tips; wt-cu at or just before the fork ofM,
Abclomen dark brown, provided with erect white setae.

xrxvi i ,' 26|

E N TO T[ O L O G I C ] \ L

NEWS

50

Habint.-N,orth America, without exact data. Holotype, 3,l,abelled "Smiths, Amer. bor., 1867." Paratofotypes,2 33.
Type in the collection of the Vienna N'fuseum.
Compared wilh LIeratonra nlcsacero (Osten Sacken), thepresent speciesis seen to be a large light gray fly with heavier
borly and stouter legs. The short antennae contrast strikinglywith the condition founcl in inegacerarvhere the organ is longer
tl-ranthe entire body. The fly is more closeiy allied to the larger
H. burmeisteri (Loew\ of Europe but is distinct from anv of
the numerous European species. It is unfortr,rnate that theexact locality is in doubt since the species is of more thanorclinary interest. Dr. Zerny suggeststhat the "Smiths" of tlie
locality label may refer to the collector (as Smiths,on) ratht:rthan to any locality.
Dicranota currani sp. n.
d. Length about 5 mm.; rving 7-7.3 mm.
Closely relatecl to D. diztaricoto Ale-xander, {rom rshich it
cliffersas follows:\4esonotal praesclltrlm yellowish gray with three verv conspicuous dark brown stripes, the broad median stripe entire€xcept near the sutllre. Legs stouter, especially the middle
legs, brorvnish black rvith the exception of the restricted fernoralbases. Abdomen uniformly dark brown, including the hvpop1'gium. I{ale hypopvgium with the ventral interbase a long
flattened blade. the apex subacute to acute, the mesal or inneiedge nearlv straight, the lateral or out'er edge gently curvecl
to the apex. Lateral arms of gonapophysesmuch broadcr andstouter than in D. dizloricata.
IIabi,tat.-Ontario, Quebec. Holotype: d, Ottawa, Ontario,l{av 9, 1923 (C. H. Curran). Allotype, ?, Hull, Quebec,N{ay9,792+ (C. fI . Curran). Paratopotypes,S 33; parat\tftz.s,23.{?, with the allotype.
Type in the Canadian National Collection.
This interesting Dicranofa, is named in honor of the collector, N{r. C. Howard Curran, to whorn I am ind,ebtedfor manv
favors in the past.
Rhaphidolabis (Rhaphidolabis) avis sp. n.
\rery similar to R. (R.) tenuipes Osten Sacken, from rvhich
it differs strikingl.y in the structure of the male hypopt,gium.

51

ENTOMOLOGICAL

NEWS

IFeb.,'26

Median lobe of ninth tergite slender, as in the tenuipes group.
Dorsal interbase produced into a slender chitinized rod, at about
two-thirds the length narrowed and bent at a right angle to theacute tip. Ventral interbase in its general contour suggesting
the body of a bird, the flattened body portionr with abotrt eightdelicate setae,the head produced mesad into a strong chitinized
beak, the region of the frons with a smaller squat spine. Dististvle a long flattened blade that narrows gradually to thesubacute apex.
Holotype: d, Dead Run, Fairfax CounHabitat.-Yirginia.
( R. C. Slnnnon).
27,
l9l4
ty, September