252 LAWKENCE BRUNER. 



165. Pubescence for the most part fox-red, moderately long and dense. Segments 



2-4 with apical hair bands of the same color. . . • *vulpic©lor Ckll. 

 Pubescence fulvous, ochraceous or whitish, of variable length and den- 

 sity 166. 



166. Pubescence on head and thorax more or less fulvous 167. 



Pubescence on head and thorax cinereous or ochraceous 169. 



167. Wings yellowish-hyaline, nervures (except subcostal) and stigma ferrugin- 



ous. Sides of abdominal segments 2-4 with pubescence on hind mar- 

 gins. Fimbria purplish or fuscous Macgillivrayi Ckll. 



Wings subhyaline, with the apex clouded ; nervures rufo-testaceous. • • -168. 



168. Pubescence on face pale fulvous, darker on thorax. Apical margins of ab- 



dominal segments provided laterally with narrow fringe of pale pubes- 

 cence hilars* Sm. 



Pubescence on thorax fulvous. Abdomen at the sides and towards apex 

 with fine gray pile. Apical margins of segments rufo-testaceous. 



perplexa Sm. 



169. Abdomen thinly covered above with hoary pubescence, the apical margins 



of the segments beneath fringed with the same. Wings hyaline, 



iridescent uicesta Sm. 



Abdomen provided with well-defined hair bands 170. 



170. Wings clear hyaline, the nervures and stigma brown. Abdominal fasciae 



very distinct, all continuous. Fimbria chocolate color. 



electrica Casad. & Ckll. 

 Wings with the apex clouded 171. 



171. Pubescence on head and thorax short, pale gray. Fimbria orange-fulvous. 



Wings strongly yellowish basally fracta Casad. & Ckll. 



Pubescence on head and thorax long, dense, cinereous. Fimbria cinereous. 

 Wings hyaline verae inula Cress. 



172. Anal fimbria lighter, white, gray, ochraceous or orange 173. 



Anal fimbria darker, various shades of brown or black, as ferruginous, ful- 

 vous, rufous, fuscous, etc 176. 



173. Pubescence on head and thorax brownish ochraceous. Abdomen with 



patches of grayish white pubescence on sides of segments 2-4. Fim- 

 bria reddish-orange salicifloris Ckll. 



Pubescence on head and thorax grayish or cinereous. Abdomen with con- 

 tinuous hair bands 174. 



174. The pubescence thin. Hair bands of abdomen long and thin at margins of 



segments. Fimbria ochraceous macoupineiisis Eob. 



The pubescence dense. Hair bands also quite dense • • • -175. 



175. Smaller, 10 mm. in length. Fimbria whitish. Wings faintly hyaline, 



tinged with yellowish i mi I at ri \ Cress. 



Larger, 11-12 mm. Fimbria cinereous. Wings hyaline, apical margin dusky. 



verecunda Cress. 



176. Pubescence at least on head and thorax above fulvous 177. 



Pubescence paler, whitish ochraceous or cinereous 183. 



* The descriptions of a few of these insects are so indefinite as to leave some 

 room for doubt as to just where they should fall in the table. They may there- 

 fore be found in other sections also. 



