410 C. R. Osten Sacken: Synopsis of the Blepharoceridae. 



b. Eyes bisected by an unfacetted crossband; submarginal 

 cell sessile; no crossvein between the fourth and fifth 

 longitudinal veins (fig. 3). 



B. fasciata Westw. cf Q.. — Europa. 

 B. capitata Lw. cf $. — U. States. 

 bb. Eyes bisected by a simple groove; submarginal cell with 

 a long pedicel; a crossvein between the fourth and fifth 



veins. 



B. ancilla 0. S. </. — California. 



aa. Eyes separated by a broad front, and not bisected by a 

 crossband or groove. 



Lipoiieura Loew. 

 b. A crossvein between the 4^ and 5^ veins. 

 Submarginal cell sessile (fig. 5). 



L. hilohala Lw. cf. — Europe. 

 Submarginal cell with a long petiole, 



L. yosemite 0. S. (f. — California. 

 bb. No crossvein between the 4|^ and 5|| veins. 



Larger species jL. cinerascens Lw. cf 9 . — Europe. 

 Smaller and darker species L. brevirostris Lw. cf Q. — 



Europe. 



IL No incomplete vein near the posterior margin. 



A. Proboscis very much prolonged; bind tibiae provided with 

 spurs; ungues simple. 



a. There is a longitudinal vein between the first and the 

 fourth longitudinal veins i). Eyes separated by a broad 

 front icf). 



b. Eyes bisected by an unfacetted crossband; wing fig. 1. 

 Apistoinyia Bigot. — A. elegans Bigot cf. — 

 Corsica; Cyprus2). 

 bb. Eyes entire, not bisected (c/); wing fig. 7. 



Paltostoma Schiner. — P. superbiens Schin. cf- — 



S. Am er. 



t) It must be borne in mind that the fourth longitudinal vein of 

 the Blepharoceridae is the vein immediately preceding the large 

 posterior fork (the incomplete vein not being counted). 



2) Loew, Revision etc. p. 71 says that Bigot calls a male the 

 specimen which he describes and figures, whereas in the figure it 

 appears to be a female. 1 would not accept this surmise vvithout 

 further proof. 



