1907.] NATURAL SCIENCES OF PHILADELPHIA. 469 



1. \'ertcx produced ami angulated before or frequently forming a 



long ceplialic process, 2. 



— . \'ert6X transverse, anterior edge feebly arcuated ; elytra in the 

 short-winged form scarcely exceeding the abdomen, convex; 

 anterior femora foliaceous, .... Piiylloscelis Germ. 



2. \'ertex triangularly produced, rarely more than twice as long as 



its width between the eyes, with a distinct median carina in 

 our species; pronotum deeply and acutely emarginate behind; 

 color usually green with long greenish-hyaline elytra, 



DiCTYOPHARA Germ. 



— . Vertex produced in a linear cephalic process, without a distinct 



median carina; elytra shorter, opaque; pronotum truncated or 



broadly, obtusely emarginate behind, 3. 



3. Cephalic process abruptly contracted before the eyes; pronotum 



liroadly, obtusely emarginate behind, 4. 



— . Cephalic process not narrowed before the eyes, its sides corrugated ; 

 pronotum truncated behind, .... Scolopsella Ball. 



4. Rather stout insects of some shade of pale green or testaceous, 



becoming fuscous brown in certain species, but not black, 



ScoLOPS Schaum. 



— . Slender black insects with smoky translucent elytra; inhabit 



California, Belonocharis Uhler. 



5. ^'ertex flat, triangularly produced, as long as broad and attaining 



the apex of the head ; pronotum concavely arcuated behind , 



Orgerius Still. 

 — . ^'ertex short, transverse, occupying hardly one-half of the superior 

 aspect of the head ; pronotum very obtusely angularly emargin- 

 ate behind, Loxophora n. gen. 



Genua DICTYOPHAEA Germ. 



Didyophara curviceps Stal I have not yet seen. The three species 

 known to me may be separated as follows : 



Vertex fully twice as long as its basal width, median carina extending a 

 little more than halfway to its apex, the three frontal carinse 

 almost parallel throughout their length, . microrhina Walk. 



— . \'ertex scarcely longer than its width at base, its median carina 

 almost attaining the apex ; frontal carinae more widely separated 



above, forming a spatulate compartment, 2. 



2. I/ateral carinse of the front meeting in an acute angle on its base, 

 concolorous at that point; plates of the female long and slender, 

 ligulate and curved upward, attaining the apex of the pygofers, 



lingula Van ]3. 



— . Lateral carinse of the front meeting at the base in an obtuse angle, 

 together with the marginal carinse lined with black around the 

 apex of the head ; plates of the female short, oblique, and oblong 

 in form, not attaining the apex of the pygofers, . florens Stal. 



Diotyophara miororhina Walker. 



In this species the vertex is much longer than in the two other 



