672 LIST OF DIPTERA. 



sirne nigri. Mas. — Forceps analis non acnminatus, nonnunquam 

 fere clavatus. Fccm. — Oviductus longissimus, acutissimus. 



Cerdistus, Loew, Linn. Ent. iv. 74, 5. 



Blackish gray or almost black species of very small or hardly 

 middle size. Colour of the legs mostly black. Forceps not 

 pointed, almost club-like in some species. Ovipositor very long 

 and pointed, otherwise having always the usual structure. Face 

 rather small ; convex part little. 



45. AsiLTJS ERYTHRURUS. 



Cinereus ; fades el barba albce ; mystax supra niger, subtus albus ; 

 thorax nigro vittatus ; abdomen nigro micans, incisuris albis ; 

 pedes nigri, tibiis testaceis apice nigris ; ala subcinerece ; 

 halteres fiavi. 



Asilus erythrurus, Meig. Ziveifl. ii. 337, 49. Macq. Hist. Nat. 



Dipt. i. 306, 12. Loew, Linn. Ent. iv. 74, 45. 

 Asilus tenuis, Macq. Dipt. i. 307, 16. 



South France. Piedmont, Italy. 



46. Asilus denticulatus. 



Tibiae basi obscure fusees. Mas. — Forceps niger, apice testaceus 

 dente elongato lenui. 



Asilus denticulatus, Loew, Linn. Ent. iv. 77, 46. 



Far. Minor. Rhodes. End of April. 



Var. Major. Stanchio and Skalanova, Asia Minor. Begin- 

 ning of June. 



47. Asilus melanopus. 



Cinereus ; fades et barba albce ; mystax albus, supra parum niger ; 

 thorax nigro vittatus, vitta intermedia Integra ; abdomen 

 nigrum, incisuris albis ; pedes toti nigri ; alee fuscescente 

 cinerem ; halteres ftisco-flavi. 



Asilus melanopus, Meig. Ziveifl. ii. 338, 52. Loew, Linn. Ent. iv. 



80, 47. 

 Asilus alpinus, Meig. Zweifl. ii. 336, 48. Macq. Hist. Nat. Dipt. 



i. 309, 28. 



Swiss Alps. 



