454 KANSAS UNIVERSITY SCIENCE BULLETIN. 



LIMOSINA. 



TABLE TO THE SPECIES. 



1. Third section of costal vein longer than the second 2 



Third section of the costal vein shorter or equal to the second 6 



2. Distal section of second vein longer than the first section of the third. . . 3 

 Distal section of second vein not longer than the first section of the 



third luguhris Will. 



3. Last section of third vein with a decided curvature forward, ending a 



considerable distance before apex of wing pe7'2)Cirva Will. 



Third vein without such curvature, ending near apex of wing 4 



4. Wings wholly hyaline exigua, n. sp. 



Wings at least somewhat inf uscated on anterior portion 5 



5. Front shining occidentalis, n. sp. 



Front largely opaque sordlpes, n. sp. 



6. Scutellum deep opaque black, noticeably different from the mesonotum, 



.Scutellaria Will. 

 Scutellum not noticeablly different from the mesonotum 7 



7. Third vein nearly straight, ending at tip of wing 8 



Third vein curving forward, ending before apex of wing 9 



8. Scutellum shining cequalis Grimshaw. 



Scutellum opaque 2^'^^'^^^'^ Will. 



9. Scutellum with reddish margin dolorosa Will. 



Scutellum not so marked 10 



10. Front marked with red 11 



Front not marked with red 12 



11. Front also with small silvery spots venalicia O. S. 



Front without such spots illota Will. 



12. Entirely black atra Adams. 



Not entirely black 13 



13. Cheeks and mouth-parts largely yellow aetigera Adams. 



Cheeks and mouth-parts black 14 



14. Scutellum with eight bristles fontinali.s Fall. 



Scutellum with six bristles aldriehi Will, 



Limosina exigua, n. sp. 



Male and female : Front opaque black, with median line 

 shining, occiput black, shining, face, cheeks and mouth-parts 

 dull light colored ; antennae black, arista pubescent. Thorax 

 black, shining, pleurae with a brownish cast, halteres white. 

 Abdomen black, shining, venter brownish. Wings hyaline, 

 third section of costa longer than second, first section with a 

 few long bristly hairs, last section of second vein longer than 

 the first section of the third, joining the costa nearly opposite 



