THE JUMPING PLANT-LICE OB PSYLLID^ OF THE NEW WORLD. 37 



with the antennal segments distinctly reduced are so similar to other 

 species of the genus in nearly every other respect that it seems 

 advisable to regard them as forming a subgeneric group within the 

 genus Aphalara. Because of this antennal reduction the name 

 Anomocera is given to the subgenus. 



The antennae are short, but not unusually so. The reduction 

 seems to have occurred in the apical segments. The two basal seg- 

 ments are normally enlarged; the tliird is longest and the succeeding 

 segments subequal to each other. What appears to be the terminal, 

 (eighth) segment is really composed of two short closely connate 

 segments, thus making the antennae nine-segmented, but apparently 

 only eight-segmented. Other characters are more or less similar to 

 the Tiolocerous species. 



Type of subgenus. — Aplialara {Anomocera) minutissima Crawford. 



APHALARA (ANOMOCERA) MINUTISSIMA Crawlord. 



Figs. 169, 177, 381, 507. 



Aphalara minutissima Crawford 'lib: 500. 



Similar in size and general gross appearance to artemisise, differing 

 as follows: Color a little more whitish; wings white, not spotted; 

 antennse of about the same relative length but only nine-segmented, 

 with the terminal two segments so closely connate that they appear 

 as one segment except by close examination. Thorax usually less 

 arched, coarsely punctate. Wings more narrowed apically, thick, 

 whitish, not spotted or maculated, venation as usual for genus; 

 sometimes slightly brownish toward apex. 



Genitalia. — Male. — Genitalia similar, but forceps more enlarged 

 at apex, more as in caudata. Female. — Genital segment relatively very 

 large, almost as large as rest of abdomen and thorax combined, 

 dorsal valve longer than ventral. 



Described from numerous males and females from Claremont, 

 California (Crawford), on Artemisia calif ornica, April, 1912; Los 

 Angeles, California (Koebele), on same host, April 23, 1886; Argus 

 Mountains, California (Koebele), May, 1891; Ormsby County, 

 Nevada (Baker); American Forks, Utah (Hubbard and Schwarz), 

 June 22; Ogden, Utah (Koebele), on ''sage," June 20, 1885; and on 

 Artemisia tridentata, June 13, 1885; one female from Nebraska on 

 Artemisia tridentata. 



Manuscript name: A. occidentalis Riley. 



Type in author's collection. 



APHALARA (ANOMOCERA) ANOMALA, new species. 



This species is somewhat similar in general proportions to minu- 

 tissima, but a little larger and a little more robust. Antennae short, 

 a little longer and more slender than in minutissima; III relatively 



