436 KANSAS UNIVERSITY SCIENCE BULLETIN. 



CHRYSOPILA. 



TABLE TO THE SPECIES. 



1. Black or brown in general color 2 



Testaceous or light colored 26 



2. Wings hyaline 3 



Wings hyaline, with an intense grayish tinge humilis Loew. 



Wings wholly or in part fuscous or subf uscous 14 



3. Thorax with golden yellow, yellowish or pale hairs on tomentum 5 



Thorax with black pile 4 



4. Pile of abdomen yellow (Mexico) aterima Will. 



Pile of abdomen black proxima Walk. 



5. Femora black or brown, at least at base 6 



Femora yellow, blackish sometimes at apex 9 



6. Femora, except sometimes at extreme tip, wholly black 7 



Femora brown at base only 8 



7. Pile of vertex black to7nentosa Bigot 



Pile of vertex yellow (female) 2^^'^^^''^^ Walk. 



8. General color velvety black fasciata Say. 



General color brownish black basilaris Say. 



9. Apex of each abdominal segment yellow 10 



Apex of all abdominal segments not yellow 11 



Abdomen uniformly golden yellow testacijies Bigot. 



10. The yellow of segments confined to ground color modesta Loew. 



Yellow of segments confined to tomentum ornata Say. 



11. Posterior femora brown at apex, 4 mm., Jamaica jamaicensis John. 



Posterior femora entirely yellow, larger species 12 



12. First two abdominal segments largely yellow 13 



First two segments not yellow bella, n. sp. 



13. Mesonotum with three dull testaceous stripes basalis Walk. 



Mesonotum uniformly covered with golden yellow tomentum, invalida Will. 



14. Thorax blackish pilose 15 



Thorax golden yellow, yellow, or largely light pilose 19 



15. Legs entirely black 16 



Legs not entirely black 17 



16. Wings with two dark brown spots on costal margin (St. Vincent, West 



Indies) atra Will. 



Wings without such spots anthracina Will. 



17. Hind border of each abdominal segment testaceous trifasciata Walk. 



Hind border of each abdominal segment not testaceous 18 



18. Second abdominal segment broadly silvery villose at base nigra Bell. 



Second segment not so marked vehdina Loew. 



19. Thorax golden yellow pilose or tomentose 20 



Thorax pale yellow pilose or tomentose 24 



20. Wings infuscated near tip only, 5 mm. (Mexico) pwe^Za Will. 



Wings otherwise infuscated 21 



