326 



MiRTH AMERICAN DIPTERA. 



Fig. 132. Helomyzidae. 1, lurid, sp. wing; 3, Anorostoma, head; 

 5. Scoliocentra helvola, middle tibia and tarsus. 



5. Kyes very small; four dorsocantral bristles; arista very long. 6 

 Eyes not very small. ........ 7 



6. All the tibiae without bristles on outer side; hind femora of male 



often emarginate at base below. . Eccoptomera L<>ew. 



Middle tibiae at least with bristles oil outer side. . Oecothea. 



7. Four pairs of dorsocentral bristles. ...... S 



But three pairs of dorsocentral bristles; third antennal joint short; 



bristles of costa small. .... Tephrochlamys. 



8. Costal border of wings noticeably bristly (fig. 130). . Leria. 

 Costal border with very small bristles. . . Heteromyza. 



