xxxv,'241

ENTOMOLOGICALNEW S.

6l

Undescribed Crane'Flies from Argentina(Dipt. : Tipulidae). Part VIII.
By Cnanres P. Ar-exexoet, Amherst, Massachusetts.
The four new speciesof Dicrartornylodescribedat this timervere collectedin the Province of C6rdoba by Dr. Bruch, andin the Province of Jujuy by Engineer Weiser, to both c-,frvhom
I am greatly indebted for numerous speciutensof Argcntinian
Tipulidae. The types are preserved in tl're wiiter's collection
through the kindness of the collectors.
Dicranomyia flavofascialis sp. n.
Antennae with the scalpal segments obscure bror,vnish 1'c1low, the flagellum dark brown; head I'vith a grayisl-r yeilt;lvbloom; mesonotum dark reddish brown, the praescutumlvith
three, brownish black stripes; scutal lobes brownish bladt ;pleura largely dark brown; femora with the tips broadly .yelIow and with a more or less distinct subapical browlr ring ;wings yellowish subhyaline; stigma and indistinct seamsalong
the cord and outer end of cell tstA[2 darker; vein Sc short;abdomen dark brown, the segmentsringecl caudally with yellowish.
6 . Length 8.2-8.5 mm.; wing 9.4-10 mm. ? . Length
8 . 5- 10. 5 m m . ; w i n g 8 .5 -1 1 .5m m .
Rostrum and palpi dark brorvn. Antennae rvith the scapal
segments obscure brownish yel1ow; flagellar segntentsoval,
dark brown. Head clark with a greyish )'ellrr',' llloom; vertex
between eyes narrow.
Mesonotal praescutum dark redclishltrorvt'trvith tl.rlee,brorvnish black stripes, the median stripe broacl, becoming indistinct
before the suture ; scutum pale medially, the lobes brownish
black; scutellumyellowish medially, the lateral margins brorvnish black ; postnoi:um dark brorvn, the latelal tttargins narrorvlY
obscure yellow. Pleura dark brown, the clorsal nta.rgin of thesternopleurite more yellorvish; remait.rdero{ stertropleuritedarkbrown. Halteres pale brou'n, the knobs ancl distal half ofthe stem brown.
Legs rvith the coxae obscure yellorv, the outer faces moreor less darkened: trochanters dull yellorv; femora pale brownwith the tips broadly and conspicuously light yellow, precedecl
by a dark brown ring; tibiae and tarsi brown.
Wings yellowish subhyaline; stigma suboval, brown ; narrowand veiy indistinct seams along the cord and outer end o{ cellrst M2; veins dark brown. Venatior.r: Sc short, ending opposite or slightly before the origin o{ Rs, Sc2 a sl.rort distance

62

ENToMoLocrcALNEws.

fFeb., '24

from the tip, Scl aione being about equal to the outer deflection of X.[3; Rs about one-half longer than the deflection ofR4t5; cell rsi i12 closed; basal deflectionol Cul at the forkof l[ or nearly so.
Abdominal tergites dark brown, the posterior margins of thesegmentsconspicuouslyar.rdbroadly ringed with dull yellow;
sternitesobscureyellowish brown, sirnilarly ringed with yellow.
Holotype : 6 , La Granja,Gracia, C6rdoba, April 1-8,'\lta
t9 20, ( C. B r uc h) . Al l o to p o ty fe : ? . P a ra to p otypcs:30 d g.
Dicranom5,isfluz,ofascialisis closely related to D. andicola(Alexander) but is readily told b1' the darker coloration of thethorax and abdornen, the less distinct brown pattern on thewings, and the subterminal brorvn ring on the femora.
Dicranomyia patruelis sp. n.
Antennae dark brown, the first scapal segment obscurebrownish yellow ; flagellar segments oval ; head light brown;mesonotum obscure yellow, the praescutum r,vith three, broad,dark brown stripes; scutellum dark brown with a pale medianline; halteres long and slender; legs uniformly brown; wings
yellowish subhyaline, the stigma pale brorvnish yellow; Sc
short, cell rst MZ closed; abdon-rinaltergites uniformly darkbrown.
6 . Length 8 mn-r.; wing 9 mm. 9 . Length 9 mm.; wing
10 mm.
Rostrum and palpi dark brown, the former elongate. Antennae with the basal segment obscure brownish vellow. theremainder of the organ dark brown. the flagellai segments
oval. Head light brown, somewhat narrorved behind.
Pronotum long and narrow, dark brown above, paler laterally. Mesonotal praescutum shiny obscure yellow with a broad,dark brown, median stripe that becomes bifid and obliterated
shortly before the sutur-e; lateral stripes not well indicated;scutum whitish, each lobe dark brown; scutellum dark brown,with a capillary pale median vitta; postnotum dark brown,paler laterally. Halteres long and slender, dark brown, thebase of the stem naler.
Legs with the ioxae obscure yellorv, the fore coxae darker;
trochanters obscure yellow; femora light brown; remainder ofthe legs darker brown.
Wings yellowish subhyaline, the stigma very pale brownish
yellow ; r'einsbror,vn. Venation: Scl ending just before the origin of Rs, Sc2 some distance before this tip, Scl alone being alittle longer than the basal deflection of MI*Z;Rs about one-xxxv, '241

EN TO MO I -o (; I C A L

NEWS'63

r**:t?:1i}31fl;^1:q;4hf
i{,if,r'n;';xdi.q{t'i*:$J1"1'.:'gl,k";i-r;'"'iliF;kbi1,-lJ"'
j;:,l.ll;b.;ref.;lydarker.

biownish yellow' the termtn

Gracia' C6rdoba' April 1-8'
Holotype: 6, La Granja' Alta
Ilg2}, (C. Bruch) ' AlIotoPotYPe: 'allied to D' fl'avofascialis
ttottty
itpot'u-''ti'
Dicranoanyiab;thesilf,ru;:ffii#'i,#3i"#lii"l:tordu,,ii, readiiv
witl
subhyatinewings
tion oi the bodY'"tfffiffiJ"'#T:*t?'il?f%;;",

segnage'ar
the-basar"lnl3"''iiijl1fll$.tiii.i,1
F:::'rffi
3;:m:1, fJlH:';t';s;il;ii".,,ni*.ib"io",iht"t'p"of scl ; cell rst M2''.?J
't'oti.'s;;'i?;,"gT?::T,""T'yj:;:8T;,ir.,.a;abdominar.
r ,'X'f;$;,I,i'lf
lnX!';";ub,o*'-;""*i;"ii'fL"t",n:?

oalebrown; s.

*:ff Tf,f3t"gLx'*ru$:*,"llin1-;;"eedingsesm',trHil1,:ltiii,:'l',ffi*$:*":i1il1;'Iilii,
j1fi-;{,d"inlt"f*'"'"1'#l';,""""'#"?'i?iT?1xT
iandnotp";,nu"o*iuseparatedl?:Xt$ffi:lHl"I;;;;;;iut.
pale.grayish'while medially, ther,rr.rr. j;;;;;
attainins,n.

:##;""i',i'.r"b"''d"*"1'"#;;:5*'*r":;ffi.**1*r'ii'rr"""Haltires;ffi',",o"t::*ip*:iilfx'##,jd*;T#TLt'iftixJil"#i;#::llll:ili"il:*:,-*'l:-",P#ff;,T*,nlil"li:$:i"lja,.ii

t*i+tl$iluim+i'X".':

xxxv, '24]
o+ENTONOLOGICNL

NE\\' S.

IIi eb.,' 24

closed; nt, about two-thirds the outer deflection ol M3; basal
rleflectirnr of C'wl longer than Cu'2, placed at or before thefork of ,41.
r\lldorucl unifornly brown, the tergitesa little darker colored.
!lolotyfe : d, 'l'ilcara, Province of Jujuy, March 20' 1920,
1 \i . W c is er ) . P o ra to fo tYfe : 6 .
Dicranomyia jujuyensis sp. 11.
Mesonotil praesiutum *ith an obscttre yellow median stripe'
the posterior-hali of the sclerite lvith four, narrow, dalk
brown stripes ; scutal lobes with a dark brown ring-; halteresyellow, the knobs dark brown; wings subhyaline, with a heavy
ieticulate pattern; Sc long, cell tsl Me closed; abdomen uni{ormly reddish brown.
6 . Length 4.8 mm.; wing 5.8 mm.
The uniq"ue type is not fully matured. Rostrum relatively
l ,rr r gand s lendei,b ro w n , s p a rs e l yp o l l i n o s e ;p al pi dark brow n'.\rriennaewith the first segmentbrou'n. the secondsegmentandof the flagellum pa.ler, distal flag-ellar.segmentsl;asal segments"Headwith a sparse'grayish yellow pollen, the center
brolvn.
o{ the vertex with a brown mark.
Pronotum pale, sparsely pollinose. Mesonotal praescutum
ruilh a broad,^median,obsiuie yellorv stripe, the posterior-halfbroadly m,argined with dark biown, the mesal margin of tl-re
usual laterai stripes similarly dark brown, the .interspaces
silverv white, pruinose; laterai margins of the scleritesobscurevellori: scutum silvery white, each lobe ob'rcure yellorv, ena broad, dirk brown mar$ng; scutellum.silvery.;tiJea'by
p"rt"ot*it obscure yellow, sparsely pollinose' Pleura brownish
vellolv. Halteres yellorv, the knobs dark brorvn'' Leg, long and siender, the coxae and trochanters yellow; reof-the legs not fully colored, apparently to becomedark*-in[.,
the femoral tiPs Paler'withbrown
Wings subhyaline lvith i cbnspicuous.reticulate brown pattern, tfie hea,rier areas being at ihe origin of Rs, before midi."git o] cells Sc and R; n&r midlenglh of M; a cotrpicuous
stiglnal area that extends onto the deflection of R4*5; aarea occupyingthe outer end of cell :nd Rl'i;r";:";ili.uou,tfrJ. " " , " r l of c el l s R 3 a n d n S ; a tt th e o th e r cel l s of the w i ng
lvilh co'spicuous spots, clouds and transverse bars; costa yelii,"'*;,f-', Il.-tZZ iubequal darktrrown marks alternatingwith
r.ellorvareasthat are usuallv much wider:_remaining.veins.pale
6to*n. \-etration: Sc long. 'Scl ending beyond mldlengtn oI; ilg n S ', r r .i."g n,..s.z"t rt.iili-"t 'S clI r atiheiip o f R1 . n

detlecsilir:lr.' a rld si)urle d at or igin: c c ll r s f M 2 c los e d ; o u t e r

NE'ws'
ItNToMol-oGIcAI-65

or M3
tion."b?yr',:J.;:lt"Ti:ill.,
i#:l,;tF;tlfiili-fr
rszo'Crrt bef ore the torx "-t;ffi.,"::"'it':'"';";".;;tly

da.ke.

20'P'oui''"or Jujuv'March

1V. Weiser)n it.iurensis bears a certain
wrng-pattern'.'
reticulate!:::''rf
In itsCuba and South-

a'u''r'lr"H;;iiliil]'['5tflllllif
i1,1.
;h*n:
tails of coloration'