CYRTID.E 



455 



6 (5) Proboscis very short or absent. 



7 (8) Antenna ending in three thin rays, or with a long thin terminal 



process emitting three hair-like rays (fig. 262). Costa near 

 the end of the subcostal vein, with a hump bearing a small 

 tooth-Hke projection near the end (fig. 260 B and C). 



Ptekodontia. 



8 (7) Antennae ending in a long arista (figs. 263, 265). Costa not 



humped. 



Fio. 262.— Ptcrodontia 

 analis. x 50. 



Pig. ZQS.—Acrocera gloluliis (J. x 33- 



9 (12) Antennae placed at the top of the head near the ocelli (fig. 263). 

 Proboscis short and stumpy. 



10 (11) Eyes hairy. Discal cell complete with apparently three complete 

 veinlets issuing from it ; anal cell closed (fig. 264). Opsebius. 



Fio. 264.— Oj>sf6iits inflatus ?, (After Loew.) 



Vio. 265. —Oncodesgibbosus (J. X 27. 



11 (10) Eyes bare. Discal cell absent, and apparently only one discal 



veinlet to the posterior margin (fig. 260 G) ; anal cell open. 



1. ACKOCERA. 



Kadial vein present (fig. 260 F). — Acrocera. 

 Radial vein absent (fig. 260 G). — Paracrocera. 



12 (9) Antennae placed at the bottom of the head near the mouth 



(fig. 265). Proboscis entirely absent. Three incomplete discal 



veinlets extended towards the wingmargin (fig. 260 D). 



2. Oncodes. 



