THE JUMPING PLANT-LICE OK PSYLLID^ OF THE NEW WORLD. 107 



vertex very large, flat, square; genal cones small, subcorneal, flexed 

 outward. Thorax very large; pronotum short; mesonotum ascending 

 vertically to scutum, coarsely punctate. Legs thick. Wings very 

 long, subhyaline, rhomboidal; cells long and narrow. 



Type of genus. — Uhleria mira, new species. 



This is a very aberrant and unusual genus, showing, however, 

 marked relationships to other Pachypsyllini genera. 



UHLERIA MIRA, new species. 



Figs. 114, 115, 411. 



Length of body 3.9 mm.; length of forewing 4.2; width of head 1.05. 

 General color brown, variegated with flavous; an indefinite flavous 

 stripe extending up each side of vertex over pronotum and on each 

 side of praescutum, and meeting at posterior side of latter and 

 extending as one median stripe over scutum; pleurae variegated. 

 Body very large. 



Vertex nearly square, very slightly broader than long, with a 

 shallow fovea on each side of median line, coarsely punctate; genal 

 cones about one-fourth as long as vertex, flexed outward, rather acute 

 at tips, slightly pubescent. (Antennae broken oft\) 



Thorax very large, coarsely punctate. Pronotum short, broader 

 at lateral extremities; praescutum relatively small. Mesoscutum 

 exceedingly large, strongly arched. Wings about three times as long 

 as broad, flavous and somewhat thickened, subhyaline or semi- 

 opaque; posterior apical margin angulate; marginal cells very 

 elongate and narrow; pterostigma rather large. 



The genitalia of the single specimen (apparently a female) before 

 me have been removed. The abdomen is very large at base and 

 converges to a small apex. 



Described from one female with no locality data, in the United 

 States National Museum collection. It is probably an American 

 species, however. 



Type.— Cat. No. 18095, U. S. Nat. Mus. 



This is such a remarkable and interesting species that it has seemed 



worth while to describe it, even without any locality data, in the 



hopes that future collecting will bring to light additional specimens. 



The name given to this species is that applied, in manuscript, to the 



same insect by Rilev. It was apparently named after Dr. Philip 



Uhler. 



TETRAGONOCEPHALA, new genus. 



Head, and sometimes pronotum also, perpendicularly inclined; 

 vertex flat, quadrate, rarely converging slightly toward front; genal 

 cones rather large. Thorax strongly arched; pleurites of pronotum 

 rather broad. Wings subhyaline, more or less elongate-ovate, cells 

 long and narrow; pterostigma wanting. 



Type of genus. — Tetragonacephalaflava, new species. 



