[Berliner Entomolog. Zeitsclirift Bd. XXXV. 1890. Heft II.] 303 



Hilarimorpha Schin. is a Leptid. 



C. R. Osten Sacketi. 



During my visit to my friend Victor von Röder in Hoym 

 (Anhalt) last spring, he has had the kindness to show nie a specimen 

 of Hilarimorpha, the first I had ever seen. The following note is 

 the result of its examination. 



Prof. Mik wrote his article on Hilarimorpha in the Verh, 

 Zool. Bot. Ges. 1881 just a year before he did me the honor to 

 stand Sponsor for my first essay on Chaetotaxy before that learned 

 Society (Zu 0. Sacken's Chaetotaxie der Dipteren, in Verh, Zool. 

 Bot. Ges. Sitzungsber. 1. März 1882). Had this event taken place 

 a little earlier, Prof. Mik would not, in all probability, have taken 

 Hilarimorpha for an Enipid. It has no niacrochaetae, while all 

 the Empidae I knovv of have at least a few distinct ones round the 

 base of the wings. Prof. Mik says that Hilarimorpha has only 

 four posterior cells, and therefore cannot be a Leptid, which ought 

 to have live. It was not known in 1881 yet that the Lomatia 

 elongata Wied. is not a L,omatia, but a Leptid with the excep- 

 tional nuniber of four posterior cells {Agnotomyia Willist. Entom. 

 Amer. 188(), p. lOG). Prof. Mik further says that Hilarimorpha 

 has no pulvilliform cmpodiuni. The genus Lampromyia affords an 

 instance that a i)ulvilliform enipodium may not be developed in a 

 Leptid. Again he says that the posterior brauch of the fork of the 

 third vein in the Lcptidae is always behind the apcx of the wing 

 and not before it, as m Hilarimorpha. ButSpania is a Leptid, 

 and yet that vein ends before the apex of its wing. Prof. Mik 

 argues further that the antennae of Hilarimorpha are not those of 

 a Leptid. These antennae are peculiar, but not very far remote 

 from those of a Spania. The structure of the face, the pollinosity 



