CHARACTERS DISTINGUISHING LARVAE OF POPILLIA, ETC. 9 



Habitat : Sandy soil of the east coast States. These larvae feed upon plant 



roots, are sometimes found in the turf of golf courses, and have been known 



to kill privet hedge and small maple trees. 

 Remarks: Distinguished from similar sized Phyllophaga grubs by the short 



but dense brown vestiture of the back and the short double row of spines 



in the center of the raster. 



OCHROSIDIA VILLOSA (Burm.) 



Length 24 mm. Form medium or slightly stout. 



Width of head 4 mm. 



Surface of head : Shining, shallowly but sharply reticulate. Upper part of 

 epicranial stem a fine impressed line with broadly swollen margins. Front 

 with a large roundish impression at each side of middle, each with a setose 

 puncture ; a transverse row of three small punctures above and outside 

 these impressions. Rather numerous small punctures near clypeal suture. 



Color of head : Brownish yellow clouded with darker. 



Epipharynx (fig. 4) : Sensory eminence with a single large, dark, sclerotized 

 plate with a rounded apex, in the left side of which is a deep notch. The 

 sense cone on the epigusta is rather small. 



Raster (fig. 7) : A sparse group of coarse, long, hooked brown spines becoming 

 larger towards anal slit. Apex of terminal segment somewhat truncate 

 and clothed with yellow hairs of moderate length. 



Anal slit : Transverse, arcuate. 



Vestiture : Normal, i.e. r a general very sparse distribution of long slender hairs, 

 and rather densely placed, very short brown dorsal spines. 



Habitat : Common and often harmful in the turf of lawns and golf courses. 



Remarks: Slightly larger and stouter than the PopiUia grub and may be dis- 

 tinguished from it in the field by lack of V in the raster. 



APHONUS CASTANEUS (Melsh.) 



Length 28 mm. Form rather stout. 



Width of head 3.5 mm. 



Surface of head: Shining, but (except at extreme sides) hairy and roughened, 



with rather close and coarse setose punctures. Epicranial stem a distinct 



impressed line. Epicranial arms obscured by the general punctation. 

 Color of head : Chestnut brown, slightly lighter at sides. 

 Epipharynx (fig. 4) : Sensory eminence with a single large, dark, sclerotized 



plate. The apex comes to a broadly obtuse point directed towards the 



large median spineless area. On the right margin a single large articulate 



tooth. Sense cone on epigusta large and elongate. 

 Raster (fig. 7) : An extensive patch of brown, hooked spines, similar to that of 



Ochrosidia villoma but with the spines more numerous and noticeably 



smaller. End of abdomen rounded — not slightly truncate as in Ochrosidia.. 

 Anal slit : Distinctly arcuate. 

 Vestiture : Fairly numerous long hairs throughout ; the small dorsal spines; 



more hairlike and longer than usual. 

 Habitat: Sandy soil. Rather frequent in turf of golf courses of the coastal 



plains. 

 Remarks : The dark, rough, hairy head immediately distinguishes this grub 



from any others herein described. 



XYLORYCTES SATYRUS (Fab.) 



Length 55 mm. Form stout. 



Width of head 7 mm. 



Surface of head: Shining, glabrous, coarsely punctured throughout, vaguely 



impressed on each side of front. Epicranial stem impressed at top of 



vertex. 

 Color of head: Brownish black. 

 Epipharynx (fig. 5) : The striking characters are the large blunt beaklike 



sclerotized projection of the sensory eminence and the T-shaped apex of 



the left torma. 

 Raster (fig. 7) : As shown, without special structures. 

 82234°— 34 2 



