EEVISION OF ELi;ODIINI BLAISDELL. 61 



setae not dense and moderate in length, longer on apical border. 

 Membrane very sparsely setose across the bottom of the sinus. 



Female. — Genital segment (Plate 3, fig. 3) quadrate, somewhat de- 

 pressed and setose. 



Valvula. — Dorsal plate oblong, explanate externally from base to 

 apex, glabrous; surface more or less plane, never excavated, some- 

 times with the apical portion slightly deflexed, sparsely punctate, 

 setae moderate in length, longer apically ; external margin feebly 

 sinuate towards base, feebly arcuate towards apex, the latter with 

 the external lobe strongly developed, three-fourths as wide as the 

 dorsal plate and broadly rounded; internal border straight to feebly 

 sinuous, the inner lobe of apex minute and separated from the ex- 

 ternal by a small sinuation ; f//^e« set with long flying seta^. 



AppeitiJage minutely mammilliform, usually invisible from above; 

 fossa fringed wath fine and rather long hairs. 



Basal lyrominences not conspicuous. 



Superior pudendal memhrane longitudinally rugulose, reaching to 

 the base of the internal apical lobe. 



Ventrolateral surface (Plate 3, fig. 4) Avith the basal swollen por- 

 tion quite short, more or less broadly and transversely concave before 

 the apex: surface glabrous, sparsely punctate and minutely setose; 

 submarginal groove broad and shallow beneath the expanded sides, 

 curving inward beneath the external lobe to the base of the internal 

 lobe. Internal margins of the valves not contiguous at apex; genital 

 fissure broadly fusiform, and nearly closed by the longitudinally 

 rugulose inferior pudendal membrane. 



Kahitat. — Forma glabra. — Arizona (Williams, Barber, and 

 Schwarz) ; Colorado (Arboles, C. F. Baker). 



Forma typica. — Texas (Mobeetee, H. S. Barber) ; Nebraska 

 (Grant, July, C.V.Riley; Pine Riclge, Sand Hills, Sioux City, col- 

 lection Universit}^ of Nebraska) ; Kansas (F. H. Snow) ; Colorado 

 (Golden, E. J. Oslar; Colorado Springs, June, elevation 6,000-7,000 

 feet, H. F. "Wickham; Sterling, collection University of Nebraska; 

 Platte Canj^on, October, Greeley, H. Soltau; La Junta, Durango, 

 South Park, San Luis Valley, Pueblo, West Cliff, Canyon City, Den- 

 ver; Wickham's List) ; AVyoming (Cheyenne, C. V. Riley and H. F. 

 Wickham) ; Oklahoma (Fort Supply, October, H. S. Barber) ; Mon- 

 tana (Assiniboine, Hubbard and Schw^arz; Moose Jaw. August, 

 A. N. Caudell; Helena); South Dakota (Badlands, Pine Ridge, 

 September, L. Stejneger; Hot Springs, collection University of 

 Nebraska). 



Forma annectans, — Colorado (Gulnare, Las Animas County, July 



8). 



Forma punctata. — New ■Mexico (Coolidge, Wickham) ; Colorado 

 (Edith; Denver, collection of E. C. Van Dyke). 



