THE JUMPING PLANT-LICE OR PSYLLID^ OF THE NEW WOELD. 61 



median line extending obliquely toward outer margin of antennae; 

 anterior margin rather deeply cleft, but less so than in athenx; 

 anterior ocellus at apex of excision, visible from above; posterior 

 ocelli situated well forward. Antennae very long and slender, nearly 

 as long as body, uniformly black; antennal bases swollen. Clypeus 

 rather large; beak long and slender, acute. 



Thorax arched, rather narrow, coarsely punctate. Praescutum 

 long, rather narrow. Hind tibiae with a small spur at base. Wings 

 large, hyaline, acute at apex, about two and three-fourths times as 

 long as broad; first marginal cell smaller than second. 



Genitalia. — Male. — Genital segment large; forceps large, stout, 

 obtuse at apex; anal valve long, spatulate; pubescence moderate. 

 Female. — Genital segment almost as long as rest of abdomen, quite 

 acute and slender; dorsal valve a Httle longer than ventral; pubes- 

 cence rather sparse. 



Described from several males and females from Jalapa, Mexico 

 (Crawford), August 28, 1910. 



Type in author's collection. 



RHINOPSYLLA ANTENNATA Crawford. 



Figs. 215, 33a o41. 



Paratrioza antennata Crawford 10a:229. 

 Rhinopsylla antennata Ctiawfort) lla:441; llb:491. 



Length of body 1.8 mm.; length of forewing 2.7; width of head 

 0.73. General color black, abdomen white ventrad; antennae and 

 tarsi lighter. 



Head not deflexed, about as broad as thorax, broad posteriorly 

 when viewed from the side, and tapering toward the insertion of the 

 antennae. Vertex arcuate on posterior margin, with a prominent 

 sulcate depression extending forward and toward lower margin of 

 eye on each side, rather deeply cleft in front; anterior ocellus at 

 apex of excision, visible from above; genae slightly swollen beneath 

 antennal bases. Praescutum small. Legs not very long, as in pre- 

 ceding species. Wings hyaline, small, about two and a half times 

 as long as broad, subacute apically; marginal cells subequal; venation 

 light brown, inconspicuous. 



Genitalia. — Male. — Genital segment small, not much larger than 

 preceding segment; forceps small, subglobose basally, slender and 

 acute apically; pubescence short and sparse. Anal valve about 

 equal in size to ventral plate of segment, almost straight on inner 

 margin, strongly arched posteriorly; pubescence longer than on 

 genital plate and forceps. 



Described from two males from Colorado (C. F. Baker), no data. 



Type.—Csit. No. 18082, U. S. Nat. Mus. 



