Ai:r. 10 THE FAMILY SIMULIIDAE DYAR AND SHANNON 39 



lono-. black; adminiculum arms with three long sharp teeth on each 

 side, well spaced, witli one or two little teeth and fimbriae between; 

 a thin spotted membrane. (Figs. 129 and 130.) 



Type locality. — Seattle, Wash. 



Type,— Cat. No. 28344. U.S.N.M. 

 . DistrihutioH. — ^AVasiiington : Seattle (C. V. Piper). 



SIMULIUM VIRGATUM Coquillett 



Simuli'Um vlrtjatinn Coquillett, Proc. U. S. Nat. Mus., vol. 25. 1903, p. 87. 

 iiim/uUmn liippovonun Malloch, U. S. Dept. Agr., Bur. Eut., Tech. Ser. No. 



20, 1914, p. 28. 

 Slmulinm rubk^Kndvlinn Knab, Ins. Ins. Mens., vol. 2, 1914, p. 178. 



A fairly large species; fore coxae yellow, frons grayish opaque; 

 eyes deeply incised; tergites two to six, very small; last three 

 bluish gray, faintly obscured with pollen; fore tibia with a distinct 

 patch of white pollen; fore tarsi slightly thickened, legs mostly 

 mellow; mesonotum with tinge of reddish brown. Mesopleura 

 usually bare but sometimes with a few loose hairs on upper margin. 

 Female hypopj'gium with anal lobe narrow, and a single row of 

 coarse setae; forks of genital rod shaped like a spear-head, heavilj' 

 chitinized and broad, both teeth dark as well as the curved tips. 

 (Figs. 82 and 83.) 



Male hypopygium: Side pieces short, outer angle produced. 

 Claspers heavy and broad, rounded, constricted subapically with 

 terminal minute tubercle; adminiculum broad, membranous, with 

 wide basal arms, the center quadrately produced to form an I-shaped 

 bar wliich crosses the disk and Avidens at base. Adminiculum arms 

 ridged, subdentate. with a spotted membrane. (Figs. 126, 127. and 

 128.) 



Fifty specimens at hand. 



7'j/pe localities. — Of mrgatunv. Las Vegas Hot Springs, N. Mex. 

 Type in U. S. National Museum. Cat. No. 

 G183, U.S.N.M 

 Of hippovonim^ Sierra Madre, Mexico. Type in 

 IT. S. National Museum, Cat. No. 15407, 

 U.S.N.M. 

 Of fuhicundulwn, Cordoba, Mexico. Type in 

 U. S. National Mu.seum. Cat. No. 19112, 

 U.S.N.M. 

 IHxtrihution. — California: Los Angeles, June-July (W. D. 

 Coquillett). Fresno, May 12, 1923 (M. E. 

 Phillips). East Highlands, October, 1914 



( ). Clio, July 9, 1916 (H. G. Dyar). 



Truckee. August. 8. 1915 (H. G. Dyar). 



