ii. 



^^ THE MYCET0PHILID.5V OF NORTH AMERICA. 247 



r.- 



bb. Subcostal vein ends opposite or proximad of the base of 

 '^ the radial sector. 



? c. Wing with several distinct brown spots, tibize each with 



f but a single spur. 



' d. Dorsum black with central stripes, fore metatarsus 



about equal to tibia in length. West Indies, 



6. fictipennis. 

 dd. Thorax opaque brownish black, often with yellow 

 central stripe ; sides, pleura and scutellum yellow ; 

 fore metatarsus shorter than its tibia. Atlantic 

 States. 7. elegans/ 



cc. \\'ing with only a single preapical fascia, or wholly 

 uniform in color, 

 d. Wing without a band or fascia near apex, 

 e. Mesonotum mainly black or dark brown. 



f . Length 2 mm ; subcostal crossvein apparently - 

 w^anting ; anal vein not produced to margin ; 

 female. Eastern vStates. 8. iiiiiniila n. sp. 

 ff. Length over 3 mm. ^ ■ 



g. Subcostal crossvein wanting ; thorax and .^'' 

 abdomen black; apex of wing smoky ;S^ 

 length 6 mm. 9. melasoma. 



gg. Subcostal crossvein present, situated far 

 proximad of middle of subcosta; anal vein 

 produced to margin, 

 h. Scutellum, pleura and hind margins of abdo- 

 minal segments yellow, 

 i. Aletanotum yellow. 10. pullata. 



ii. ]\Ietanotum black; fore metatarsus short- 

 er than tibia. 4. sctiger n. sp. 

 hh. Thorax wholly black, except humeral angle 

 and at base of wings ; hypopygium small 

 (fig. 92). II. nigrita n. sp. 

 ee. Predominant color of mesonotum yellow. 



f. A blackish spot on the proximal part of hind 

 coxae and adjacent portion of pleura ; abdo- 

 men reddish yellow ; wing with feebly marked 

 band before the tip; length 8 mm. 



12. nofabilis. 



U^Litf, 



