THE JUMPING PLANT-LICE OR PSYLLID^ OF THE NEW WORLD. 49 

 Genus CALOPHYA Loew. 



Body usually small to medium in size, robust. Head very short, 

 seldom as broad as thorax; vertex smooth or impressed discally with 

 foveas, more or less roundly convex in front, sometimes very uniformly 

 so, as in Paurocephala; genae swollen, and usually produced into 

 conical processes which may be ver}^ short and inconspicuous or quite 

 long and acutely pointed; frons usually mostly covered by genre, but 

 often partiall}^ visible. Antennae short and rather thick, seldom 

 longer than width of head; terminal setre rather long; segment III 

 often nearly as long as IV-X combined. Thorax strongly arched 

 broad; propleurites largely covered by eyes. Forewings ovate, or 

 more or less pointed at apex, hyaline to opaque, with a pterostigma; 

 first marginal cell usually much larger than second. 



Type of genus. — CalopTiya rliois Loew (not Glover). 



The members of this genus, so far as is known, are confined, in this 

 country, to species of RJius (Sumach) and have been called the Sumach 

 Psyllids. One species, C. rliois Loew, has been described from Europe 

 and four from Japan by Kuwayama (C. nigra, nigridorsalis, viridis, 

 and viridiscutellata) . Five forms are known in this country. There 

 is more or less close resemblance between this genus and PauropsyUa 

 of which there are no American representatives. 



SYKOPSIS OP SPECIES. 



'. Genal cones distinctly longer than the -vridth at base, coniform; wings rounded at 



apex. 

 ¥. Cones very long, slender, white; mngs hyaline, shining, slightly fumate along 

 forks of media and cubitus; vertex and thorax black or brown. 



calif ornica Schwarz. 

 52. Cones not very long, only a little longer than basal width, acute, 

 c'. Cones thick at base, contiguous basally, divergent; wings yellowish, trans- 

 parent; body in both sexes uniformly honey yellow flavida Schwarz. 



c^. Cones slender, distinctly separated at base and extending outward; wings 

 clear; head and thorax of male black, abdomen yellow; female yellow. 



duhia, new species. 

 K Genal cones not longer than broad, usually very much reduced and not markedly 



coniform; wings more or less angulate at apex. 

 6'. Wings black or bro^vn, not transparent, only semiangulate at apex; pterostigma 

 very long; vertex black, depressed; posterior ocelli not visible from side; 

 thorax orange yellow; praescutum not long; genal cones subacute at apex, 



directed forward; female genital segment short nigripennis Riley. 



h^. Wings hyaline, transparent, shining, i-ather acute at apex; pterostigma very 

 short and small; praescutum long; genal cones very short, subacute at apex, 

 du-ected inward. 

 c'. Vertex and thorax black or brown; wing with a large brown macula at base 



of anterior basal cell triozomima Schwarz. 



C-. Vertex and thorax honey yellow; wiag clear, without macula in basal cell. 



triozomima daripennis, new variety. 



