154 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



PSYLLA BREVISTIGMATA MAGNA, new variety. 



Similar to the species, except in the male forceps, which are longer 

 and diagonally truncate at the apex. 



Several males and females from Utah; one from Ormsby County, 

 Nevada (Baker). 



Type.—Csit. No. 18111, U. S. Nat. Mus. 



PSYLLA BREVISTIGMATA ACUTA, new variety. 



Close to the species, but differing in the male forceps, which are 

 more slender, more acuminate, and are turned forward in distal 

 third, terminating in a blunt apex. 



Several males and females from the mountains near Claremont, 

 California (Crawford), on foliage oi Pinus fonder osa, elevation 10,000 

 feet, July, 1911; Wasatch Mountains, Utah (Koebele), on Oercocar'pus 

 ledifolius, June 20, 1885. 



Type.— Cat. No. 18112, U. S. Nat. Mus. 



PSYLLA FLOCCOSA Patch. 



Figs. 82, 142, 251, 302, 467. 

 Psylla floccosa Patch '09: 301; '10: 29; '11: 11. 



Length of body (male) 2.1 mm; (female) 3.8; length of forewing 4.8; 

 width of head 0.98 to 1.05. General color greenish yellow, sometimes 

 with a brownish tinge; distal antenna! segments black. 



Vertex not half as long as broad, with two shallow fovese, front 

 ocellus rather sunken in emargination at median line. Genal cones 

 longer than vertex, not strongly divergent, large, subacute or nar- 

 rowly rounded at apex, sometimes densely pubescent. Antennae not 

 quite three times as long as width of head, slender. 



Thorax strongly arched, coarsely punctate. Pronotum long. Legs 

 moderately large; hind tibiae slightly longer than femora, basal spur 

 small or almost wanting; apical spines conspicuous, seven or eight in 

 number. Wings very large, broad at apex, transparent; venation 

 typical; pterostigma almost or wholly wanting; veins flavous. 



Genitalia. — Male. — Anal valve long, converging toward tip, pubes- 

 cent; forceps long, rather slender, converging in distal portion to a 

 simple, acute, black point. Female. — Genital segment as long as rest 

 of abdomen or longer, somewhat subglobose in basal fourth or fifth, 

 thence abruptly narrowed and slender, styliform, dorsal valve slightly 

 upturned at tip, a little longer than ventral. 



Described from one female (metatype) from Orono, Maine (Patch), 

 July 6, 1909, on Alnus incana Willdenow; Lake Temagami, Ontario, 

 Canada, August 12, 1906 (W. J. Pahner;) Oakland, Maryland (Hub- 

 bard and Schwarz), July 9; Toland, Colorado (Cockerell), on Alnus 

 tenuifolia, August, 1911; Placer County, California (Koebele), on 

 Alnus incavM, September. Some of these bear the manuscript name 

 of Psylla styliformis Crawford. 



