494 Pomona College Journal of Entomology 



of the propleuritcs is of prime importance in this genus, as in many others also. 

 This has been entirely ignored or overlooked by other students of this family. As 

 accompanying diagnostic characters the absence of factial cones, and the long pos- 

 terior lobe of the anal valve of the male are very constant. A recast of European 

 species in accordance with this diagnosis will be necessary but, because only a few 

 of the.se species are represented in the collections at hand, this cannot be 

 atteni])ted liere. 



Synopsis of Species of Genus Aphalara 

 A. Labrum very elongate, truncate at apex, descending from face anteriorly. 

 Notum with four more or less distinct light colored stripes. Female 

 genital segment very short. Anal valve of male sliglitly longer than 

 genital plate. Wings fumate apicallv. 



Aphalara calthae L. 



AA. Labrum not elongate nor truncate, subglobose and more or less appressed 

 to face. 

 B. Wings more or less maculate or spotted. 

 C. Wings with small brown spots and dots. 

 D. Spots distinct and numerous, covering entire surface; wings whitish. 

 E. Body small, wings quite wliite; spots well separated. 



Aphalara artemisiae Forst. 

 EE. Body larger; wings less wliite; spots verj' thickly crowded and often 

 merged. 



Aphalara artemisiae angustipennis Crawf. 

 DD. S])()ts indistinct, few, and only in apical half. Wings fulvous. 



Aphalara communis metsaria Crawf. 

 CC. Wings witli maculae, not spotted or dotted. 

 I). Labrum quite long, extending forward as far as insertion of antennae. 

 1)D. Labrum short, not extending forward to insertion of antennae. 



Aphalara calthae maculipennis Low. 

 E. Profile of head distinctly shorter than broad dorso-ventrally. Wings 

 cons])icuously attenuate basally. Anal valve of male with long, taper- 

 ing lobe posterior ; claspers spatulate-clavate. 



Aphalara pulchella Crawf. 

 EE. Profile of head fully as long as broad or longer. Wings not con- 

 spicuously attenuate at base. Anal valve of male conspicuously 

 lanceolate ; petiolate at base ; claspers abruptly and greatly broad- 

 ened .-it tip into transverse plate. 



Aphalara nehulosa americana Crawf. 

 BB. Wings clear, not maculate or spotted. 

 C. Body very small; wings small, white, transversely wrinkled. Profile of 

 head almost round. 



Aphalara minutissima Crawf. 

 CC. Body large ; wings large, not white nor transversely wrinkled. 

 D. Body of medium size, yellowisli. Dorsum ratlier flat, not strongly arched. 

 Wings rather slender, first m.-irginal cell long. 



Aphalara communis Crawf. 



