98 Miss G. Ricardo on the Pangoninse 



Pangonin^. 

 Hind tibia with spurs. Ocelli usually present. 



1. Third joint of antennae with eight or at least 



seven divisions. Proboscis usually pro- 

 longed 3. 



2. Third joint of antennae with five divisions. 



Proboscis short 14 {Silvius &c.). 



■ 3. Third joint of antennoe with a tooth Dicrania, Macq. 



Third joint of antennae with no tooth .... 4. 



4. Wings' short ; body flat, elliptical Apocampta, Schiner. 



Wings not short 5. 



5. Third joint of antennae with each segment 



branched . Pityocera, Gigl.-Tos. 



Third joint of antennae not branched .... 6. 

 l6. Upper corner of eyes terminating in an acute 



angle Goniops, Aldrich. 



Upper corner of eyes not terminating in an 



acute angle 7. 



7. Antennae deep-seated, inclined downwards. 



I'alpi very large and thick Cadicera, Macq. 



Antennae not deep-seated nor inclined down- 

 wards. Palpi not very large and thick . . 8. 



8. Antennae subulated ; proboscis with ter- 



minal lips in form of a hatchet ; anal cell 



open and anal vein curved Pelecorhynchus, Macq. 



= Canopnyr/a, Thorns. 

 Antennae not subulated ; proboscis simple ; 



anal cell closed, anal vein not curved .... 9. 



9. Proboscis scarcely extending beyond palpi . Apatolestes, Will. 

 Proboscis extending beyond palpi 10. 



10. Wings with fourth posterior cell closed . . Scione, Wlk. 



= Diclisa, Schiner. 

 Wings with fourth posterior cell open .... 11. 



Pangonia, Latr. 



11 . Wings vrith first posterior cell closed .... Pangonia, Rond. 



11 a. Eyes naked I Pangonia, Rond. 



11 b. Eyes hairy subgenus | Erephrosis, Rond. 



12. Wings with first posterior cell open Diatomineura, Rond. 



12 a. Eyes hairy I Diatomineura, Rond. 



12 6. Eyes bare subgenus ) Corizoneura, Rond. 



13. ? Antennae long and narrow. Wings with 



first posterior cell closed ? Mycteromyia, Phil. 



The three genera Apocampta^ Schiner, formed for A. nigra, 

 Pityocera, Gigl.-Tos, formed for P. fesioi, Goniops, Aldrich, 

 formed for 6r. hippohoscoides, containing only the one species 

 each; Apatolestes, Williston, fornied for A. comastes, and 

 Mycteromyia, Philippi, tormed for Pangonia conica, Bigot, 

 and others, arc not represented in the Museum Collection, so 

 that I have no knowledge of them ; the last genus is prob- 

 ably a doubtful one. 



Sachenymia, Bigot (Ann. Soc. Ent. Fr. (5) ix. 1879), 



