THE JUMPING PLANT-LICE OR PSYLLID^ OF THE NEW WOELD. 63 



Anomoneura, a Japanese genus, is very anomalous in having the 

 radial sector branched several times, thus forming several super- 

 numerary marginal cells. In other respects it seems to be closely 

 related to species of Psyllinae. 



Genus CERIACREMUM Enderlein. 



Ceriacreumum Enderlein '10a: 138. 

 Panisopelma Enderlein '10b: 280. 



Head rather large, not strongly deflexed ; vertex broader than long, 

 converging toward front; frons covered by gense; genae produced 

 into cones of variable size. Antennge long, slender. Hind tibiae 

 with a spur at base behind. Wings somewhat thickened, ovate, 

 broadly rounded at apex, veins setigerous; radial sector branched 

 apically and sending a short cross vein to media, thus making a third 

 marginal cell. 



Type of genus. — Ceriacremum Jiliverpatum Enderlein (an African 

 species), designated by Enderlein ('10: 138). 



SYNOPSIS OF SPECIES. 



a^. Genal cones very small; vertex twice as broad as long; antennae half as long aa 

 forewing; length to tip of folded wings about 2 mm. .quadrigibbiceps Enderlein. 



a'. Genal cones two-thirds as long as vertex; vertex not quite twice as broad as long; 

 antennae as long as wings; length 3 mm to tip of folded wings 



setosum, new species. 



CERIACREMUM QUADRIGIBBICEPS Enderlein. 



PanisopelTna qioadrigibbiceps Enderlein '10b:280. 



The principal differences between this and the following species 

 are mentioned in the foregoing synopsis. I have seen no specimens 

 of this species. 



Locality: Province of Mendoza, Pedregal, Argentina (Jensen- 

 Hai-up), October 24, 1906 (one female). 



Type in Stettin Zoological Museum. 



CERIACREMUM SETOSUM, new species. 



Figs. 37, 43, 220, 272, 278, 432. 



Length of body 2.1 mm; length of forewing 2.1; width of head 

 0.91. General color brownish flavous. Body robust, quite large, 

 finely and rather densely pubescent. 



Head large, fully as broad as thorax, punctate, pubescent ; vertex 

 rather flat, with two slight depressions discally, scarcely elevated on 

 postocellar regions, somewhat produced in front on each side of 

 median line. Genal cones large, broad, continuing plane of vertex, 

 almost horizontal, somewhat divergent, subacute at apex, pubescence 

 very short. 



