44 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



cephala, is a distinct and new species. However, since these have 

 been determined as Ashmead's ilicis and the other is merely a sur- 

 mise, ilicis should be placed in Paurocei^liala and the Florida species 

 become Psyllopa jloridensis. The latter species, it is shown later 

 (p. 129), is identical with Arytaina amorpTise (Mally). 



HETEROPSYLLA, new genus. 



Body usually small. Head short, rather small, deliexed, rounded 

 forward and down in front, but less evenly so than in preceding 

 genus; genae somewhat swollen beneath vertex, but not produced 

 into conical processes; with the frons as a visible sclerite between the 

 genae and forming the bottom of a groove betv,'een them, somewhat 

 resembling Aplialaroida in shape of frons; clj^peus pyriform, not 

 large. Eyes medium to small in size. Antennae very long and 

 very slender. Thorax not strongly arched; propleurites nan'ow, 

 largely concealed by receding head. Wings broadly rounded at apex, 

 hyaline, with a broad pterostigma. 



Type of genus. — HeteropsyUa texana, new species. 



SYNOPSIS OF SPECIES. 



'■. Forewingg maculated apically around marginal cells and on apex of radial sector; 

 gense conspicuously swollen ventrad; male forceps bidentate at apex. 



texana, new species. 



'. Forewings not maculated; hyaline or indistinctly fumate, transparent; genae 



not conspicuously swollen ventrad. 



6'. Antennae distinctly more than twice as long as width of head, usually at least 



two and a half times as long; frons partially or nearlj'- entirely covered by 



genae. 



c^. Forceps of male ver^'' long, arcuate caudad, divided from base into two parts; 



anterior part thin, sulcate, square at tip; posterior part spiniform, as long 



as other part, scarcely pubescent forcipata, new species. 



c^. Forceps of male about half as long as in fordpata, divided from base, but 

 posterior part very slender and inconspicuous; pubescence much denser 



mexicana, new species. 



h^. Antennae not over twice as long as width of head; frons entirely visible, 

 c^ Female genital segment almost as long as rest of abdomen, dorsal valve dis- 

 tinctly longer than ventral, 

 c?'. Forceps of male as long as anal valve or longer; forewings clear; body very 

 often light colored. 

 e^. Forceps with a long posterior, spiniform process, extending from near 

 base to near tip ; dorsal valve of female genital segment less than twice 



as long as ventral cubana, new species. 



e^. Forceps larger, with a short process arising from near middle and extending 

 obliquely inward and upward; dorsal valve of female genital segment 



fully twice aa long as ventral quassise, new species. 



d-. Forceps of male about half as long as anal valve, very short; forewings 

 slightly fumate; head and thorax usually dark colored, .fusca, new species. 

 c^. Female genital segment exceedingly short; ventral valve much shorter than 

 dorsal; male forceps somewhat similar to those of cubana. 



mimosse, new species. 



