248 MAINE AGRICUI^TURAL EXPERIMENT STATION. I909. 



ff. Smaller species differing from the above. 

 g. R2+3 nearly perpendicular to R^+s. 



h. Abdomen brownish yellow, with black hair; 

 subcostal v2in very short ; length 3 to 4 

 mm. West Indies. 13. ignobilis. 



hh. Last segment of abdomen black; faint cin- 

 ereous spot near apex of wing; subcostal 

 vein over two-thirds as long as the basal 

 cell R ; length 5 mm. Maine. 



14. fascipennis var. saga.v n. var. 

 gg. R2-r2 noticeably oblique to Ri-}--. 



h. Length 2 mm; fore metatarsus about half as 

 long as its tibia, male. 



8. iiiiiiiula n. sp. 

 hh. Length over 3 mm. 



i. Each tibia with but a single spur ; fore 



metatarsus and its tibia subequal in 



length; apical margin of abdominal 



segments black; length 5 to 6 mm. 



West Indies. 15. fasciventris. 



ii. Two spurs on each of middle and hind 



tibiae. 



j. Fore metatarsus about f as long as its 



tibia; coalesced part of the media 



2-3 as long as its petiole ; anal vein 



to margin. 16. mocsta n. sp. 



jj. Fore metatarsus at least f as long as 



its tibia. 



k. Apex of subcosta as far proximad 



of the base of the radial sector as 



the length of the first section of 



the sector ; anal vein to margin ; 



hypopygium with lobe-like forceps 



(fig. 99). 17. mendosa. ^ 



kk. Apex of subcosta nearly opposite 



the base of the radial sector. 



18. mendica. 

 dd. Wing with more or less distinct preapical spot or 

 fascia. 



