34 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



A.flavipennis Foerster '48: 89. 



A. sonchi Foerster '48: 96. 



A. alpigena Mayer-Dur '71: 402. 



A. nervosa Thomson, Opusc. Ent. '08: 840. 



Length of body about 3.3 mm.; length to tip of folded wings 4.5 to 

 5.2; length of wdng 4 to 4.3; width of head 0.95 to 1. General color 

 flavous to brown; thoracic dorsum often more or less distinctly 

 striped; abdomen darker; wings usually flavous; antennae flavous, 

 black at tips. Body very large. 



Head much narrower than thorax; vertex more than half as long 

 as broad, rather deeply emarginate in front at median line, coarsely 

 punctate; antennae a little longer than width of head. 



Thorax very large, broad and strongly arched, coarsely punctate. 

 Legs tliick and stout. Wings large, broad, almost half as broad as 

 long, more or less flavous, sometimes brownish in apical third with 

 faint markings, somewhat transparent; first marginal cell large. 



Genitalia. — Male. — Genitalia large; anal valve of usual shape, with 

 the inferior process of the posterior lobe larger than usual; pubescence 

 stiff; forceps very large, with a large, clavate apex and an inner 

 subapical tooth. Female. — Genital segment almost or fully as long 

 as rest of abdomen, thick at base, subacute; dorsal valve longer than 

 ventral; pubescence stiff and prominent. 



Described from several males and females from Colorado (Baker), 

 no data; St. Louis, Missouri, May 5, 1878. Two manuscript names 

 have been applied to these: A.Tiarrissii Riley and A.leucanihemi (?). 

 Fitch. These have been compared with four females from Aaken, 

 Germany (determined by F. Loew). 



The large size of the body easily distinguishes this and the foUowmg 

 species from other American species of this genus. Some indi- 

 viduals, however, are smaller, not much larger than the largest of 

 veaziei, but differ in having the male forceps relatively larger, the 

 female genital segment relatively stouter, the wings more flavous, 

 the thorax broader and more strongly arched, and the antennae 

 relatively shorter. 



APHALARA FASCIPENNIS Patch. 



A.fascipennis Patch '12b:217. 



This species is very closely related to picta, resembling it in size, 

 shape, and structure of body, including the genital appendages. The 

 chief difference is in the maculation of the forewing. A brown 

 irregular band crosses the wing near the apex. This is a rather 

 doubtful specific'character in this genus, if we may judge from several 

 other species previously described, but the fact that the fuscous- 

 winged forms have been found thus far mostly in the western portion 

 of the country, while the maculate-winged forms seem to be limited 



