THE JUMPING PLANT-LICE OR PSYLLID^ OF THE NEW WOELD. 115 



broad; pterostigma very long and narrow; marginal cells long, tri- 

 angular; veins setigerous. 



Genitalia. — Male. — Genital segment small. Forceps slender, sim- 

 ple, as long as anal valve, curved inward at apex, acute; anal valve 

 slender, posterior margin sinuate. Female. — Genital segment as long 

 as rest of abdomen, stout, dorsal valve a little longer than ventral. 



Described from one pair collected on Long Island, Bahamas, by 

 E. A. Schwarz, April, 1879, and one pair from Key West, Florida 

 (Schwarz) . 



Type.— Cat. No. 18097, U. S. Nat. Mus. 



KATACEPHALA ARCUATA, new species. 



Figs. 61, 62, 450. 



Length of body 2.9 mm.; length of forewing 3.6; width of head I. 

 General color brown thi'oughout. Body quite large, very pubescent. 



Head moderately large, vertical, not visible from above, retracted 

 or retrose, not as broad as thorax, pubescent, punctate; vertex 

 rounded, without foveas, straight on posterior margin, converging 

 from middle of eye to front ocellus. Genal lobes moderately large, 

 contiguous on inner margin, broad, not depressed below plane of 

 vertex, pubescent. Clypeus scarcely visible between head and 

 forecoxse. Front ocellus large, round, prominent. Antennae longer 

 than in preceding species. 



Thorax unusually arched, broad, large, densely pubescent. Prono- 

 tum very long, vertical, in same plane with vertex and almost as long. 

 Praescutum very large, more or less horizontal. Wings large, subhya- 

 line, maculate on hind margin from margin to media, darker in second 

 marginal cell, about two and one-third times as long as broad, rather 

 angulate at apex, semi-rhomboidal; basal costa very thick, densely 

 pubescent; all veins with a double row of setae; marginal cells elon- 

 gate, first longer than second; pterostigma long, pubescent. 



Genitalia. — Female. — Genital segment about as long as rest of 

 abdomen, similar in shape to Pachypsylla; dorsal valve longer than 

 ventral. 



Described from one female collected at Jalapa, Mexico (D. L. Craw- 

 ford), August 28, 1910. 



T}T)e specimen in author's collection. 



Genus EUPHYLLURA Forster. 



Euphyllura Forster '48:93. 



Body very robust, strongly arched, coarsely punctate, often more 

 or less spotted. Head deflexed strongly, large, flat, as broad as 

 thorax; vertex large, usually rather flat; genal lobes rectangular in 

 shape and about as broad as vertex and not depressed from the level 

 of vertex, contiguous on inner margin and either conjointly truncate 



