THE JUMPING PLAN"T-LICE OR PSYLLID^ OF THE NEW WORLD. 53 



CALOPHYA NIGRIPENNIS Riley. 

 Figs. 76, 250, 299, 464. 



Psylla rhois Glover (not Loew) '77: 33. 



Calophya rhois Riley '83: 69. 



Calophya nigripennis Riley '83: 69. — Schwarz '04: 244. 



Length of body 1.7 mm; length of forewing 2.1; mdth of head 

 0.72. Color of vertex, wings, and anterior and middle femora black 

 to brown, wings sometimes light brown; abdomen light brown to 

 almost black; genal cones and thorax bright orange or suKur-yellow; 

 antennae, except at tip, posterior femora and all tibiae pale yellow. 



Vertex smooth, seldom alutaceous, shining, very convexly rounded 

 downward in front, more so than in the other species of the genus. 

 Genal cones small, not as long as basal width, often distinctly shorter, 

 acute at apex, divergent, subhorizontal, not pubescent, contiguous 

 at base. Antennae shorter than width of head, thick, always black 

 at tip. 



Thorax smooth, less strongly arched than in preceding species, 

 sometimes faintly alutaceous, sometimes striped on dorsum. Fore- 

 wings thick, not transparent, somewhat punctulate, narrowly 

 rounded at apex, about two and a half times as long as broad ; ptero- 

 stigma long and large; first marginal cell about twice as large as 

 second. Hind wings somewhat fumate. 



Genitalia. — Male. — Genitalia similar to jiavida; anal valve broad, 

 about two-thirds as broad as long, convex on both hind and front 

 margins ; forceps as in jiavida. Female. — Genital segment scarcely 

 as long as two preceding ventral sclerites, stout, not acuminate. 



Described from six males and females from Washington, D. C. 

 (Schwarz), on Rhus copallina, in May; several from Raleigh, North 

 CaroUna (E. P. Van Duzee), April; Falls Church, Virginia, June; 

 Alabama; Pennsylvania (no data on the latter specimens). Mr. 

 Schwarz gives, also, "various parts of Georgia." 



Schwarz states that immature specimens resemble _^am^ but may 

 be distinguished by the shorter vertex, shorter genal cones, differences 

 in the genitaha, and slight differences in wing venation. 



Subfamily CJ^RSIJDJ^TIIN^E. 



Head deeply cleft in front, giving a bi-rostrate appearance, which is 

 increased by the large basal antennal segments. Genae A^ariable in 

 form, sometimes swollen mto small or larger conical processes beneath 

 antennal bases, sometimes not at all swollen; frons usually covered by 

 genae, somewhat as in Psyllinae, or sometimes not covered and easily 

 visible between genae, as in PauropsyUinae. Antennae usually long 

 and slender, sometimes much thickened. Thorax not strongly arched. 

 Hind tibiae often with a spur at base. Wings h^raline, variously 

 shaped, branching of veins usually not so typically dichotomous as 



