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OCCASIONAL PAPERS OF THE MUSEUM OFZOOLOGY

UNIVERSITY OF MICHIGAN
ANN Ansog Mrcurcex

PusLrsHEp Blr THE UNTVERSTTv

NEW SPECIES OF CRANE_FLIESINDIANA

FROM SOUTHERN

By Cnenr,Es P. Ar,ExeNlEn
During June, r9zr, J. Speed Rogers and the writer spent
two weeks in making a survey of the Tipulid fauna of southein Indiana, devoting especial attention to the remarkablefauna of Jefferson County in the vicinity of llanover. The
complete list of crane-flies secured upon this trip will berecorded in another paper. The types of the new species
describedherein are preserved in the writer's collection, allotypes and paratypes in the collections of the Museum of
Zoology of the University of Michigan.
Erioptera(Acyphona)indianensis, sp.n.

Mesonotal praescutum obscure yellow with four brorvn
stripes; pleura silvery gray, delimited by narrow, dark brolvn,
longitudinal stripes; each femttr yellow with a single, suF
terminal, dark brown ring; wings yellow, the brown patternvery restricted; abdomen daik brown; hypopl'gium with thegoriapophyses very slender, curved to the acute tips.
Male.-Length,3.8 mm.; wing, 4.8 mm.

Female.-Length, 4.5 mm.; wing, 5.3 mm.

Occasional Papers of the Museum of Zoology

University of Llichigan

2

Rostrum and palpi dark brown.

Antennae light yellow,

the terminal half of the segments infuscated.
yellorv, the center of the vertex darkened.

Head obscure

Mesonotal praescutum obscure yellow with f our brown
stripes, the intermediate pair narrowly separated anteriorly,
confluent near the suture; tuberculate pits situated one oneither side of this pale median vitta; scutum pale, the lobes
darker; scutellum testaceotls. Pleura silvery gray with abrown, dorsal, longitudinal stripe ; nlesosterrlunl
brown, these two brown lines thus appearing to enclose abroad silvery gray stripe; dorso-pleural membrane gray.

narrow,Halteres pale yellow. Legs yellow; femora with a single, darkbrown, subterminal ring of moderate width; tips of tibiae andrnetatarsi very narrowly darkened; terminal tarsal segments
darkened. Wings light yellow with a restricted brown pattern, this including a narrow band along the cord; small but
conspicuous spots near the wing-root, at origin of Rs, at Sc;
and at the tips of the longitudinal veins. Venation i ru at or
beyond midlength of. M j.

Gonomyia (Gonomyia)

3bidentata, sp.n.

Allied to G. subcinerea Osten Sacken; rostrum orange; thoracic pleura with a brown spot on the mesepisternum; haltereselongate; wings long and narrow, cell znd A narrow; malehypopygium with the dorsal pleural appendage terminating ina chitinized blade that is bidentate apically; gonapophysesslender, straight.
Male.-Length, q.z to 4.5 mm.; wing, 5.5 to 5.6 mm.
Female.-Length, 4.8 to 5 mm.; wing, 5.4 to 5.6 mm.
Rostrum orange; palpi dark brown.
throughout.

Antennae dark brown

Head gray, the occiput paler.

Pronotum obscure yellow, the scutellum brownish medially'
Ilesonotal praescutum obscure yellow with three nearly confluent dark brown stripes; pseudosutural foveae conspicuous;
scutum brown, obscure yellow medially and laterally; scutellum brown, the posterior margin obscure yellow; postnotum
brown medially, the lateral sclerites yellowish. Pleura yellow,

Abdomen dark brown, the hypopygium obscure yellow.
Male hypopygium as in E. arttillaris and E. graphica, but thegonapophyses much longer, more slender and pointed, andwhitish pollinose; propleura darkened; an incomplete, dorsal,

with the apices very strongly arcuated and ,recurved.

the mesosternum, the pale area between these two latter

Hototype, male, Corydon, lfarrison Cottnty, Indiana, June
18, rgzr (Alexander).

appearing as a white stripe.

longitudinal brown stripe indicated as a more or less conspicuous spot on the mesepisternum; a less distinct darkening on
Halteres very elongate, darkbrown, the extreme bases pale. Legs with the coxae whitishAilorc)oty pe, female (Rogers).

yellorv; trochanters yellow; remainder of the legs brown.

Paratopotypas, 3 males (Alexander and Rogers).

Wings

giayishsubhyaline, highlyiridescent; stigma pale

Wings long, strongly narrowed

The types were swept from beds of Dianthera in Little
Indian Creek. E. i'ndi'anmsi'sis allied to the larger E. sparsa

brown; veins dark brown.

Alex. (California).

the origin of Rs, Scz close to the tip of Scr, its position

basally. Venation: Scz ending about opposite or just beyond
slightly variable; basal deflection of. R4a5
entirelv obliterated: cell rsf 'Mzvery short toclosed: basal deflection of

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Uniaersity of tr[ichiganOccosi,onolPapers of the Museum of Zoology

Cut close to the fork of .L/, in most cases at or immediately

eight to ten setigerous punctures; the head of this appendage
is dilated into a roughly semicircular blade, the proximal

beyond this fork.
Abdominal tergites dark brown; sternites yellow or brown-angle or "toe" of which bears two strong setae, the apex one

ish yellow, the subterminal segments especially darkened.

large and one small seta, the lateral angle or "heel" of theMale hypopygium with the plettrites moderately stout, thg
outer caudal angle produced caudad into a short, cylindricallobe; two pleural appendages,the ventral appendage elongate,
fleshy, with the long apex obliquely truncated, the proximal
face not setigerous; dorsal pleural appendage a triangularfleshy lobe, the cephalic portion produced proximad into setigerous beak, the caudal angle produced into a conspicuous
blackenedblade that is directed dorsad, the apex shallowly twotoothed. Penis-guard straight, comparatively slender, the apex
truncated; before the apex on the ventral face with a conspicuous subapical spine. Gonapophyses straight, slender, broadat the base, the extreme tip of each produced into a small,pale spine.
Holotype, male, Clifty

Ravine, near Hanover, Jefferson
County, Indiana, June rg, rgzr (Alexander).
Allotopotype, Lemale.
Paratopotypes, 40 males and females (Alexanderandt

blad.e a single powerful seta. At the base of this appendage
at the caudal lateral angle of the pleurite is a small, cylindrical, setiferous lobe and a short chitinized horn.

The third

appendage is the longest and is fused basally with the dorsal
appendage, deeply constricted beyond the base, more slenderthan in florems,gradually narrowed to the short but powerful
apical spine. The second appendage appears as an elongate,sinuous, chitinized blade that is constricted at near trvo-thirdsto three-fourths its length, beyond this point tapering into along, sickle-shaped blade; in florens this appendage is stouter,not sinuclus,the apex not produced into a blade. Gonapophyses
appearing as two long, chitinized spikes, directed dorsad, thesemuch larger and more powerful than in florens.
Holotype, male, swept from beds of Dianthera in I,ittle
Indian Creek, Corydon, Harrison County, fndiana, June 18,rgzr (Alexander).
Paratopotypes, 3 males (Alexander and Rogers).

Rogers).

Teucholabis complexa immaculata, subsp. n.
Gonomyia (Gonomyia)

ilIale.-Leneth,

Very similar in all respects to I'. cornplera O. S., differingarmigera, sp.n.

as follows :about 4.8 mm.; wing, 5.5 mm.

Mesonotum shiny reddish, unmarked with darker.

Closely related to G. florens Alexander, differing as follows:I,ongitudinal pleural pale stripe slightly wider and lesstinged with yellow.
Male hypopygium with the dorsal pleural appendage notconspicuously dilated basally, gradually

narrowed

into thecomparatively short but stout stem, this provided with fromPleura

obscure yellow, the dorsal brown stripe in cornplera representetl only by a large rounded spot cephalad of the wing-root.
Brown femoral tips broader and more gradually darkened.
Abdomen lighter colored; sixth sternite with a large
rounded black spot; seventh sternite with two smaller blackspots.

Uniuersity of Michigan

Occasional Papers of the Museum of Zoology

Holotype, male, Hensler's Woods, near Hanover, fndiana,

Abdominal tergites light yellowish brown, the posterior
margins of the segments very narrowly ringed with dark

AJune 14, rgzr (Alexander).

7Ailot op oty p e, female ( Rogers ).

brown; segments four to eight, indistinctly darkened; sternites

Paratopotypet, 5 males (Alexander and Rogers) ; paratype,more uniformly yellowish. Male hypopygrum with the pleuralappendages black.

r male, at mouth of Wyandotte Cave, Crawford County,
Junerg, rg2r (Alexander).
Further studies may show this race to represent a distinct

Holotype, male, Hensler's Woods, near Hanover, Indiana,
June 16, rgzr (Alexander).
Allotopotype, female, June 14, rgzr (Alexander).

but closely allied species.

Paratopotypes, 8 males (Alexander and Rogers).
Oropeza rogersi, sp.n.

Oropeza rog.ersi.is the smallest species of the genus so far

Size small (length of ma.le under 8.5 **.) ; praescutal
stripes reddish brown, the median stripe split by a darker
brown line; pleura yellow; legs brown; abdominal segments
yellowish brown, the subterminal segments darkened, the pos-discovered. It is allied to O. d,orsalfs Johnson. It is withgreat pleasure that this interesting fly is dedicated to my friend,

terior margins of the tergites narrowly dark brown.
i[sJe.-T,ength,7.5 to 8.3 mm.i wing,8.5 to 9 mm.
Fewale.-I.ength,ro mm.; wing, 9 mm.

Frontal prolongation of head testaceous,darker above; palpi
brown. -Antennal scape and first flagellar segment yellowish
testaceous; remainder of flagellum brown. Front pale, thevertex brown.
Mesonotal praescutum obscure yellow with three reddish
brown stripes, the median stripe more or less distinctly split
by a capillary dark brown line; scutal lobes brown; scutellum
and postnotum brownish testaceous. Pleura yellow, unmarked.
Halteres brown.

Lqgs with the coxae yellow; trochanterstestaceous; remainder of the legs brown, the tarsi not brightened. Wings with a brown tinge, the stigma darker brown;
a conspicuous obliterative area before the stigma, extending
into cell tst Mz; veins brown.
petiole of. cell M r.

Venation: Rs longer than theJ. Speed Rogers, who has done so much to make known theTipulid fauna of Indiana, Iowa, and Michigan.