THE JUMPING PLANT-LICE OR PSYLLID^ OF THE NEW WOELD. 73 



scarcely longer than two preceding ventral sclerites; dorsal valve 

 longer than ventral, acutely pointed; ventral valve acute; pubes- 

 cence sparse. 



Described from three males and four females from Ai'boles, Colo- 

 rado (C. F. Baker), on SJiepJierdia sp. 



Type in author's collection. 



In the preliminary synopsis of Triozinse (Crawford '10a: 229) this 

 species was included in the genus Paratrioza. In a later paper it 

 was removed and made the type of a new genus on the basis, prin- 

 cipally, of the larger pronotum. After further study, it seems that 

 this species is not distinct generically, and therefore it is returned to 

 Paratrioza, and AUotrioza is sunk into synonymy. The other species 

 of the latter genus are placed in other genera. 



PARATRIOZA MACtJLIPENNIS Crawiord. 



Fig. 392. 



Trioza- maeulipennis Crawford '10a : 237. 

 Paratrioza maeulipennis Cr.\wford '11a : 450. 



Length of body 1.7 mm; length of forewing 2.85; width of head 

 0.77. General color reddish brown to dark bro%vn or black; vertex 

 fulvous brown, margin and discal area usually lighter; thorax darker, 

 somewhat mottled; notum more or less striped; abdomen dark; 

 antennae black at tip, intermediate segments tipped with black. 



Head deflexed, almost as broad as thorax; vertex flat, with a 

 shallow depression on each side of median line, pubescent; genal 

 cones short, longer than in cockerelli, directed forward and outward, 

 acute, pubescent. Antennae fully twice as long as width of head, 

 slender. 



Thorax not strongly arched, coarsely punctate, slightly pubescent. 

 Pronotum rather short, descending cephalad; prasscutum broader 

 than long. Legs moderately long; apical spines on hind tibias 

 rather large; basal spur small or wanting. Wings acute at apex, 

 posterior margin somewhat angled, front margin strongly arched, 

 about two and two-thirds times as long as broad, with several brown 

 maculae in apical half covering both marginal cells and parts of other 

 cells ; Rs short and straight ; first marginal cell distinctly larger than 

 second. 



Genitalia. — Male. — Anal valve relatively large, with a long posterior 

 process reaching over forceps, somewhat as in cockerelli; forceps 

 small, short, acute at apex. Female. — Genital segment short, about 

 as long as preceding ventral sclerite, subacute at apex, dorsal valve 

 a little longer than ventral. 



Described from two males from San Mateo County, California 

 (C. F. Baker), and 17 males and females from the following 



