132 Mr. F. Walker's Characters of undescrihed Diptera 



Fam. 6. LEPTID^E. 



This family contains about seventy-six species and eleven ge- 

 nera, of which Lampromyia seems to be more nearly allied to the 

 Bombylidce. 



SYNOPSIS OF THE GENERA. 



* Caput convexum. 



•f Proboscis elongata, gracilis, sub corpus recumbens. 

 J Palpi breves. Lampromyia, Macq. 

 J Palpi longi. Dasypalpus, Macq. 

 -|- -j- Proboscis brevis, crassa. 

 X Antennarum articulus 4"' longus. 

 § Antennarum articulus 3"' conicus aut rotundatus. 

 X Palpi incumbentis. 

 — {- Oculi nudi. Lepiis, Fabs. 

 — { — h Oculi villosi. Dasyomma, Macq. 

 X X Palpi elevati. 



H- Abdomen cylindricum, longissimum. Vermileo, Macq. 

 — { — {- Abdomen conicum, mediocre. 



++ Arista mediocris. Chrysopila, Macq. 

 ++++ Arista longissima. Syneches, Walk. 

 § § Antennarum articulus 3"^ transversus. Athorix, Meig. 

 J J Antennarum articulus 4"* brevis. 



§ Antennarum articulus 3"^ brevis. Ptiolma, Staeg. 

 § § Antennarum articulus 3"' longus. Spania, Meig. 



* * Caput planum. Exeretoneiira, Macq. 



Fam. 7. BOMBYLID^. 



Sub-fam. 1. Therevites. 

 Contains about 115 species and six genera. ^ 



SYNOPSIS. 



* Proboscis gracilis, elongata. Xertomyza, Weid. 



* * Proboscis brevis, crassa. 



-f- Antennarum articulus 3"* nudus. 

 J Antennarum arista vix distincta. 

 § Corpus angustum. 



X Proboscis non prominens. Thereva, Latr. 

 X X Proboscis prominens. Anabarhynchus, Macq. 

 § § Corpus latum, pilosissimum. Exapata, Macq. 



