MYCETOPHILID.i;. 7 



u u. Tibiae witli extremely minute spines, or vvitiiout spines. 

 b. With wings and halteres. 

 c. Cubital vein not forked. 

 d. Subanal vein forked. 



e. Tibise with long spurs. 9. Leptomorphus. 

 e e. Tibiae with very short spurs. 11. Mycetobia. 

 d d. Subanal vehi not forked. 



e. Hind tibice with very minute spines. 10. Diadocidia. 

 e e. Hind tibifc without any spines. 

 /. Antennie fifteen- or sixteen-jointed in both sexes. 

 g. Fore fork of the subapical vein straight. 

 h. Antenna; bare, or nearly so. 12. Sciaea. 

 h h. Antennae pilose, verticillate in the male. 15. 

 Lestremia. 

 g f). Fore fork of the subapical vein much curved. 14. 

 Zygoneura. 

 //. Antennae eleven-jointed. 16. Cecidogona. 

 ///. Antennte of the male sixteen-jointed, of the female 



ten-jointed. 17. Catociia. 

 ////• Antenna) nine-jointed. 18. An arete. 

 fffff- Antennae fourteen- to fifteen-jointed. 19. Cam- 



PYLOMYZA. 



c c. Cubital vein forked. 



d. Wings pubescent. 20. Ditomyia. 

 d d. Wings not pubescent. 



^. Antenna; short, stout. 21. Platyura. 

 e e. Anteniice long, slender. 

 /. Subcostal vein ending at much before half tlie length of 



the wing. 22. Macrocera. 

 //. Subcostal vein ending at about half the length of the 

 wing. 23. BoLiTOPHiLA. 

 b h. No wings nor halteres. 13. Epidapus. 

 Note. " I And, firsts a group in which the prrcbrachial and po- 

 brachial areolets are confluent^ the pra3brachial vein being faint or 

 obsolete ; second, a group in which the pra^brachial areolet is 

 entirely separated from the pobrachial by a distinct pra3brachial 

 vein, but the pobrachial is but open to the posterior margin, and 

 not closed by a transverse vein. 



"Of the first group, some [BolitopMld] have tlie pobrachial 

 much shorter, so that the compounded areolet is irregular in form 

 (so it is also in Orjjhnejj/tila, in Tam. Ileleroclita). The rest liave 

 the two bracliial areolets conterminous, forming, united, one areo- 

 let, with a broad apex {Macrocera, Mi/cetohla, Ditomyia, Diadoci- 

 dia, /hindulum, Vlatyura., and Cerojdatus). Of these, iJiadocidia 

 differs from all the rest, in having a simple cubital vein, instead of 

 the forked one in the others j the forks in Mycetobia spring toge- 



