THE JUMPING PLANT- LICE OR PSYLLID^E OF THE NEW WORLD. 149 



Described from Fitch's type of quadrilineata, and one male and 

 two females (paratypes of gillettei), from Colorado; the latter are in the 

 Cornell University collection and were determined by Miss Patch. 

 She states ('12b: 221) that some of the specimens were taken on Sdlix 

 sp. in Colorado. 



This species is apparently identical with Psyllagillettei Patch. Some 

 confusion exists concerning Fitch's types of Psyllidse. Specimens in 

 the United States National Museum correspond closely with Fitch's 

 descriptions and type numbers and are said to be his types. It is in 

 accordance with this that P. gillettei is merged with this species. 



PSYLLA ALASKENSIS Ashmead. 



Fig. 413. 

 Psylla alaskensis AsnuEAD '10: 137. 



Length of body (male) 1.8 mm. ; (female) 2.8; length of forewing 3; 

 width of head 0.87. General color greenish or brownish yellow; a 

 spot on each side of pronotum and indistinct stripes on scutum fuscous 

 or darker; abdomen with narrow, dark cross bands; antennae darker 

 on apical half or two-thirds. 



Vertex about twice as broad as long, bidging forward on each side 

 of front ocellus; with a shallow foveal impression on each side of 

 median line posteriorly ; genal cones nearly as long as vertex, subacute, 

 divergent, pubescent; antennae less than one and a half times as long 

 as width of head. Wings large, hyaline, or sUghtly browned, venation 

 typical; pterostigma long and large. Legs stout; hind tibiae scarcely 

 longer than femora, with a distinct spur at base. 



Genitalia. — Male. — Anal valve longer than forceps, simple, typical 

 in shape; forceps thick at base, converging to an acute point (this is 

 according to Ashmead '10: fig. 9). Female. — Genital segment about 

 half as long as rest of abdomen, stout ; dorsal valve a little longer than 

 ventral, less acute, with long and short setae. 



Described from one female (paratype) from Saldovia, Alaska, 

 July 21, 1899 (T. Kincaid). Other locaUUes: Popoff Island, Shu- 

 magin. Islands, Fox Point, all in Alaska (Harrim an- Alaska Expe- 

 dition, July, 1899.) 



Type.— C&t. No. 6274, U. S. Nat. Mus. 



PSYLLA MAGNICAUDA, new species. 

 Figs. 319, 489. 



Length of body (male) 1.8 mm.; (female) 2.2; length of forewing 

 3.1; width of head 0.90. General color greenish yellow, antennae 

 black at tip. Body robust. 



Vertex about half as long as broad, emarginate in front at median 

 line and roundly bulging on each side, with two rather shallow foveal 



