10 CIRCULAR 3 3 4, U. S. DEPARTMENT OF AGRICULTURE 



Anal slit : Transverse, slightly sinuate at ends. 



Vestiture : Surface mostly glabrous ; first five abdominal segments dorsally 



with very short, sparse, dark-brown spines, interspersed with very few 



long brown hairs. 

 Habitat: The humus under dead leaf carpet of deciduous woods. Usually 2 



or 3 grubs may be found within 3 square yards. 

 Remarks: The prothoracic sclerotized plate is rufous brown and conspicuous. 



The large distinct spiracles are darker brown. This is the largest of the 



northern scarabaeid grubs. 



COTINIS NITIDA (L.) 



Length 38 mm. Form rather stout, blunt, flattened beneath. 



Width of head 5 mm. 



Surface of head : Mostly glabrous, feebly shining, finely roughened with irreg- 

 ular, impressed reticulation. Epicranial stem and arms showing distinctly 

 as impressed light lines, the former seeming to continue downward as a 

 median furrow in upper half of front. Surface of front irregular ; a large 

 puncture or pit below the middle of each epicranial arm. 



Color of head : Chestnut brown, blackish near clypeal suture. 



Epipharynx (fig. 3) : Three-lobed ; the marginal depression each side of median 

 lobe with a small darkish mark. Sensory eminence not pronounced. About 

 12 short, fixed spines in a strongly curved transverse row. No distinct 

 sclerotized plate in median lobe. Right torma extended basally, below. 



Raster (fig. 7) : Numerous fine hairs of medium length, becoming longer at the 

 sides and end of the terminal segment. Medially a rather long double row 

 of very short, stout spines quite irregularly placed. 



Anal slit: Short, broadly arcuate. 



Vestiture: Practically the entire grub clothed rather evenly, but inconspicuously, 

 with fine brown hairs, those on the dorsal surface much shorter than the 

 hairs of the venter. 



Habitat : In soil under manure or decaying vegetation in open places. 



Remarks : This grub, like most of the Cetoniinae, is a " back-crawler." The 

 prothoracic sclerotized plates are rather large, well defined, yellowish brown. 

 The legs are short and brownish yellow. 



EUPHORIA INDA (L.) 



Length 35 mm. Form short, stout, blunt. 



Width of head 4 mm. 



Surface of head : Mostly glabrous, shining, very feebly reticulate. Furrow of 



epicranial stem extending downward on front between arms. A large 



puncture just below middle bend of epicranial arm on each side of front. 

 Color of head: Brownish yellow. 

 Epipharynx (fig. 3) : Similar to that of Cot in is, but with a long, narrow, curved, 



rather feeble sclerotized plate above the row of fixed spines of the sensory 



eminence. A definite but thin sclerotized plate above sense cone. Few, if 



any, spines below apex of left torma. 

 Raster* (fig. 7) : Similar to that of Cotinis. but vestiture more sparse and without 



any special median spines. 

 Anal slit: Transverse, nearly straight. 

 Vestiture: Very slight, limited to a narrow band of fine, short, stiff hairs (1 or 



2 hairs wide) on each convex fold; those of the dorsal surface very short, 



the very sparse lateral and ventral hairs much longer. 

 Habitat: Usually in and under old horse manure. 



Remarks : A " back-crawler." One favored habitat is the old mixed sawdust 

 and horse manure about an abandoned sawmill in the woods. 



OSMODERMA EREMICOLA KNOCH 



Length 45 mm. Form stout, distinctly larger posteriorly and blunt at the ends. 



Width of head 6.5 mm. 



Surface of head : Nearly glabrous : rather shallowly, irregularly, but distinctly 

 reticulated. Epicranial stem dark and deeply impressed. Epicranial arms 

 showing distinctly as narrow light-yellow lines. Front irregularly rough- 

 ened. Mandibles short, stout, and very irregular in surface. 



