THE JUMPING PLANT-LICE OR PSYLLIDiE OF THE NEW WORLD. 141 

 PSYLLA PARALLELA, new species. 



Closely related to fibulata, differing as follows : Vertex more emar- 

 ginate in front at median line; genal cones not quite as long as vertex; 

 antennae only about one and a fourth times as long as width of head. 

 Hind tibiae with basal spur very small or wanting. Wings clear, 

 similar in shape and venation to preceding species; pterostigma 

 long, yellow-opaque. Male forceps a little shorter than anal valve, 

 middle somewhat enlarged, then converging to near apex where an 

 abrupt broadening produces a T-shaped apex. Female genital 

 segment as long as rest of abdomen, slender, dorsal valve longer than 

 ventral. 



Described from four males and one female from Nevada County, 

 California (Koebele), September. 



Type.—C&t. No. 18106, U. S. Nat. Mus. 



PSYLLA MACULATA, new species. 



Figs. lOO, 315, 485. 



Length of body 1.5 mm.; length of forewing 2.2; width of head 

 0.85. General color dark brown; vertex, posterior half of pronotum; 

 praescutum caudad, scutum dorsad, lighter brown to yellowish; 

 facial cones tipped with brown. Body small. 



Similar to P. americana, but vertex sUghtly pubescent, bulging 

 forward in front a little more; genal cones about as long as vertex, 

 separate at base, not deflexed much from plane of vertex. Antennae 

 not quite twice as long as width of head. Basal spur of hind tibiae 

 very minute. Wings maculate on posterior apical margin and along 

 cubitus. Female genital segment very short and small; dorsal valve 

 scarcely longer than ventral. 



Described from one female from Colorado (C. F. Baker). 



Type.— C&t. No. 18107, U. S. Nat. Mus. 



PSYLLA BREVLATA Patch. 



Fig. 133. 

 Psylla breviata Patch 12b: 220. 



Length of body 2.5 mm.; length of forewing 2.9; width of head 

 0.89. General color greenish yeUow; antennae black at tip. 



Vertex a trifle more than half as long as broad, ^\'ith a shallow 

 depression on each side discally; genal cones about two-thirds as 

 long as vertex, divergent, subacute at apex, slightly pubescent. 

 Antennae short, only a little longer than width of head. Thorax as in 

 preceding species. Legs slender; hind tibiae with a very small 

 spur at base (easily visible in a balsam mount). Wings typical in 

 shape and venation, slightly yellowish in apical half; pterostigma 

 long. 



Genitalia. — Male. — Anal valve longer than forceps, of usual form, 

 elongate with sides subparaUel, pubescent; forceps rather slender 



