36 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



One female of A. schwarzii (a paratype), from Popoff Island, 

 Alaska (Harriman-Alaska Expedition) is colored very similarly to 

 the darker forms of alaskensis. Ashmead's figure of the male geni- 

 talia of schwarzii is practically meaningless, and therefore I am 

 unable to state with certainty whether or not these two species are 

 identical. It seems probable, however, that they are at least closely 

 related. 



APHALARA NEBULOSA KINCAIDI Ashmead. 



Figs. 167, 174, 175, 508. 



Aphalara kincaidi Ashmead '10:136. 



A. nebulosa americana Crawford 'lib: 503. — Patch '12b: 219. 



Length of body (male) 1.8 mm; (female) 2,2; length of forewing 2.2 

 to 2.4; width of head 0.82. General color brown to blackish, with 

 flavous marldngs on vertex and thoracic dorsum; wings transparent, 

 maculated brown in apical half, as shown in figure; legs pale brown; 

 antennae flavous, black distally. 



Head almost as broad as thorax, not deflexed; vertex large, almost 

 flat, resembling alaskensis, but more emarginate in front; antennae 

 about one and a half times as long as width of head; clypeus smaller 

 than in European nehulosa and more posterior. Thorax rather flat, 

 not very broad, strigate. Wings about two and a half times as long 

 as broad, rather transparent, maculated, venation as usual in genus. 



Genitalia. — -Male. — Posterior lobe of anal valve not as in other 

 species of genus, but conspicuously lanceolate with a petiolate base, 

 and a ridged "midrib" in basal portion; forceps moderately long, 

 constricted subapically, and apex abruptly broadened out, T-shaped, 

 with anterior part of apex longer than posterior. Female. — Genital 

 segment rather long, but not as long as rest of abdomen; dorsal valve 

 longer than ventral. 



Described from one male (paratype of A. Jcincaidi), from Popoff 

 Island, Alaska, July 9, 1899, collected by the Harriman-Alaska 

 Expedition; many males and females from Easton, Washington 

 (Koebele); Fieldbrook, California (H. S. Barber), May 19, 1903; 

 Colorado (no data). Manuscript name: Aphalara epilohii Riley. 



The American variety differs from the European form as foUows: 

 Clypeus smaller and situated farther back; male forceps larger, 

 with apical transverse part almost as long as vertical portion, while 

 in the other it is only a little over half as long; wing picture lighter 

 in color. 



ANOMOCERA, new subgenus. 



Although a reduction in the number of antennal segments in 

 Psyllidas is apparently a striking character, judging from the small 

 number of species which show this character, yet this alone may 

 not warrant the erection of a new genus. Two species of Aphalara, 



