Aur.lO THE FAMILY SIMULIIDAE DYAK AND SHANNON 35 



Cerci rounded (jiiudrate, infuscated, setose. Anal lobe more chi- 

 tinized than cerci, as dark as abdominal sclerites, narrowing ventrally 

 and rounded ly ended. Forks of genital rod weak but broad, widely 

 roundedly triangularly expanded outwardly, the edges narrow, dark; 

 a small blunt point present on outer margin; tip of nuirgin waved. 

 (Figs. 58 and .VJ.) 



Male hypop3'gium: Side pieces (luadrate, stout, wider than long. 

 Clasper uniform, twice as long as side piece, with a short rounded 

 branch near base; a tubercle at tip. Adminiculum arched, tliin 

 central area strongly protuberant, pilose, adminiculum arms Avith 

 a row of dense sharp teeth on each side, mixed with fimbriae; lateral 

 plates conical, lined. (Figs. 124 and 125.) 

 Ti/pe locollty. — Biscaj^ne Baj^, Fla. 



Type. — Male, paratypes 7 females, Cat. No. 28342, U.S.N.M.. 

 Distnhntion. — Florida : Biscayne Bay (A. T. Slosson; H. G. 

 Hubbard). 

 South Carolina : Columbia, May 14, 1912 (Jen- 

 nings and King). Congaree, Apr. 15, 1912 (Jen- 

 nings and King). 



SIMULIUM GRISEUM CoquiUett 



SimuUum griseiiiu Coqtii.i.ktt. JUill. 10. n. sev.. Div. Ent., V. S. Dept. Agr.. 

 1898, p. 69. 



Thorax gray brown to grayish yellow, the median stripe very 

 indistinct; legs yellow except the apex of hind tibia and the tarsi in 

 jjart ; abdomen largely yellowish with a median row of black spots 

 on the second to sixth tergites inclusive, the chitin of the sixth 

 tergite reduced to a roundish black spot; last three tergites grayish 

 yellow, shining. 



Female hypopygium : Cerci rounded quadrate, infuscated. 

 sparsely setose. Anal lobe broad, pale, setae small and sparse; ven- 

 trally triangularly produced to a long sharp point. Arms of genital 

 rod widely expanded, pale, with a long dark tooth at base of rod. 

 (Figs. 90 and 91.) 



Male hypop3^gium : Side pieces longer than Avide. rounded quad- 

 rate. Clasper longer than side piece, tapered, flattened, a spine at 

 tip. Adminiculum very broadly transverse, 3 times as wide as long, 

 basal prongs stout. Adminiculum arms with long teeth mixed with 

 short ones in the folds; lateral plate fimbriate. (Figs. 94, 95, and 

 96.) 



CoquiUett does not record the male in the description of the species, 

 but the single male in the lot, same data, bears the type label, pre- 

 sumably placed there by CoquiUett. 



Five specimens at hand. One specimen (Pecos, N. M.) bears 

 label '' On horse." 



