

CHARACTERS DISTINGUISHING LARVAE OF POPILLIA, ETC. 7 



Raster (fig. 6) : Characters intermediate between those of A. castanea and 



Serica simills. 

 Anal slit : As in A. castanea. 

 Vestiture: Similar to that of A. oastanea, but the short dorsal setae darker, 



finer, and slightly less dense. 

 Habitat : Sandy soil, usually in oak woods and thickets of coastal plains. 

 Remarks : The three sericine larvae herein described are similar in general 



characteristics. The slight differences in the epipharynges, rasters, and 



claws of third legs should be noticed carefully. 



DIPLOTAXIS SP. 



Length 22 mm. Form somewhat slender. 



Width of head 2.5 mm. 



Surface of head: Shining, shallowly reticulated. Groove of epicranial stem 

 with narrowly raised edges. Epicranial arms deeply impressed, nearly 

 straight at middle. Front with three large setose punctures on each side — 

 one near middle, one just below middle of epicranial arm, and one near 

 antennal end of epicranial arm. 



Color of head : Rather light dull yellow. 



Epipharynx (fig. 2) : Labrum of the usual suborbicular shape with a vaguely 

 indicated median lobe. Sensory eminence with 6 or 7 larger and 3 smaller 

 sensillae ; a rather vague sclerotized plate on right side, and 3 fixed teeth. 

 Right torma long and rather slender ; left torma shorter, heavy at base 

 and tapering toward apex. Sense cone and chitinous plate of epigusta 

 small. 



Raster (fig. 6) : On each side a conspicuous blackish patch of pointed spines, 

 longer and more dense toward anal slit. Lateral and apical hairs of 

 terminal segment rather dense but short. 



Anal slit : Y-shaped. 



Vestiture: About as in Popillia japonica. 



Habitat : So far as observed, found in sandy soil. 



Remarks : The species shown is from Long Island and is probably D. atlantis 

 Fall, which is common there. 



DICHELONYX SP. 



Length 18 mm. Form slender, as in Macrodactylus subspinosus. 



Width of head 2 mm. 



Surface of head : Shining, slightly or not reticulated. Anterior half of epicranial 

 stem a darkened groove with raised edges. Epicranial arms very slightly 

 impressed. Front with 4 setose punctures — 2 paramedian close to clypeal 

 suture and 1 on each side near middle of epicranial arm. 



Color of head: Pale dull yellow. 



Epipharynx (fig. 2): Outline of labrum somewhat angular; a strong middle 

 lobe with a large convexity on each side; the lateral margins subserrate 

 and with short, coarse spines. Sensory eminence with several sensillae 

 and 2 or 3 large fixed teeth; it is flanked by a vague, oblong sclerotized 

 plate near each side. Tormae nearly meeting above epigusta, their tips 

 obscured by sensory hairs and a large sclerotized plate. 



Raster (fig. 6) : A median and terminal group of coarse rather long spines, well 

 spaced ; at each side an elongate, longitudinal band of very small, short, 

 out-pointing spines. End of terminal segment with a tuft of long hairs 

 at each side. 



Anal slit : Y-shaped. 



Vestiture : As usual, but inconspicuous. 



Habitat : This grub has been found in the soil in nurseries. 



Remarks: Easily recognized by the elongate lateral patches of short, small 

 spines of the raster. The species figured is from northern New Jersey 

 and is probably D. elongata (Fab.). 



PHYLLOPHAGA EPHILIDA (Say) 



Length 28 mm. Form medium. 



Width of head 3.5 mm. 



Surface of head : Opaque, smooth. Epicranial stem a fine, impressed, dark 



line. Arms not conspicuous. Two very small punctures near each arm on 



front. 



