Contributions to the Study of the Lipüiieuridae Lw. 161 



lY. Änalytical table of the genera of Lipoueuridae.') 



(The flgures referred to are those of Loew's Revision, etc. 1877.) 

 I. The incomplete vein near the posterior margin of the wings is present. 

 A. Second longitudinal vein with two branches (fig. 6). 



a. Origin of the anterior branch of the second vein coincident 

 with the origin of the third vein (fig. G). 

 Anterior tibiae curved in the c/. 



Bibiocephala 0. S. B. grandis 0. S, cf — Rocky Mts., 



Colorado. 

 aa. Origin etc. not coincident etc. but distad of tlie origin of 

 the third vein. 

 Anterior tibiae straight in the male. 



Agatlioii V. Köder. A. elegantulus v.Röd.c/ - Nevada, U.S. 

 AA. Second longitudinal vein simple, without branches. 



a. Eyes contiguous, bisected by an nnfacetted crossband, or by 

 a simple groove. 

 Blepharocera Macq. 



b. Eyes bisected by an nnfacetted crossband, fig. 3 a; sub- 

 marginal cell sessile; no crossvein between the fourth 

 and fifth longitudinal veins (fig. 3 c). 

 B. fasciata Westw. c/ Q . — Europe, Centre and South. 

 B. capitata Lw. cf Q. — U. States, Dist. Columb.; 



reaches far North, 

 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. Q. — California, 

 aa. Eyes separated by a broad front. 

 Liponeura Loew. 



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

 Submarginal cell sessile (fig. 5). 



L. hilohata Lw. cf. — Southern Europe, Greece, Italy. 

 Submarginal cell with a long petiole. 

 L. yosemite. 0. S. cf. — California. 



^) Loew's änalytical table in the „Revision" is primarily based upOn 

 the presence or absence of spurs on the bind tibiae. But he supposed 

 erroneously that Pattostoma has no spurs. I have preferred therefore 

 to adopt the presence or absence of the incomplete vein, as a primary 

 character of subdivision. 



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

 the Liponeuridae is the vein immediately preceding the large posterior 

 fork (the incomplete vein not being counted). 



XL. Heft I. 11 



