CORDYLURA. 149 



Subfamily 1. HELOMYZIDES. 



Scatomyzides, Fal., et Helomyzides, Fal. 



AlcB vix unquam macidatce, areolis pobracJiiali et anali sat longis. Abdo- 

 men sessile. Pedes mediocres. 

 JFings very (jenerally without marks. Pohracliial and anal areolets 



rather long. Abdomen sessile. Legs of moderate lenytli. 



a. Tip of the abdomen thickened in the nude, compressed in the female. 



1. CoRDYLURA. 



a a. Tip of the abdomen not thickened nor compressed. 

 h. Proboscis smooth, shining, pointed. 2. Scatophaga. 

 h b. Proboscis not smooth, nor shining, nor pointed. 



c. Third joint of the antenna elongate-conical, shorter than the 

 second. 



d. Hind femora armed beneath with spines. 12. Sepedon. 

 d d. Hind femora without spines or bristles. 13. Dorycera. 

 c c. Third joint of the antennae nearly round, not longer than the 

 second. 



d. Body depressed, coriaceous. 3. Ccelopa. 

 d d. Body not depressed nor coriaceous. 5. Actora. 

 c c c. Third joint of the antennae longer than the second. 

 d. Second joint of the antennte short. 



e. Third joint of the antenna; round, a little longer than the 

 second. 



/. Costal vein armed with spines. 8. Leria. 

 //. Costal vein unarmed. 9. Heteromyza. 

 e e. Third joint of the antennae conical, much longer than the 

 second. 



/. Body depressed, coriaceous. 4. Orygma. 

 //. Body not depressed nor coriaceous. 6. Sciomy'za. 

 e e e. Third joint of the antennae conical, twice the length of 

 the second. 



/. Wings of moderate length. 7. Helomyza. 

 //. Wings long. 10. Dryomyza. 

 d d. Second joint of the antennae generally long; third rarely 

 shorter than the second ; hind femora beset with bristles. 

 11. Tetanocera. 



Genus I. CORDYLURA. 



Cordylura, Fal. Scat. 6 (1819); Meig. ; Mcq. ; Zett. il/wsm p., L. ; 

 F. ; Gmel. Ocyptera p., F. 3Iosina, NoreUia, Phrosia, Nupharia, 

 ct Delina, Dcsv. 



Corpus anguslum, cyliiulrieum, setosum. (!a])ut sul)rotinidum. Frons 

 lata. Proboscis brovis. Paljji filiformes, vol subiiliformes. Antennae 



