Report of the State Entomologist 247 



Riley: in Amer. Entomol.-Bot., ii, 1870, p. 276 (features). 



Smith: in Ent. Amer., ii, 1886, p. 163; in Proc. Ent. Soc. Wash., i, p. 54; 



in Pop. Sci. Monthly, xxx, 18"87, pp. 409, 410 (a public nuisance). 

 Lugger : in Ent. Amer., ii, 1886, p. 163 (fondness for the ash) ; in Proc. Ent. 



Soc. Wash., ii, 1888, p. 54 (food-plant). 

 ScHWARz : in Proc. Ent. Soc, Wash., i, 1886, p. 55 (odor of pupa). 

 Howard: in Proc. Ent. Soc. Wash., i, 1886, p. 56 (offensive in Raleigh, 



N. C). 

 Hamilton: in Canad. Entomol., xviii, 1886, p. 112 (change in color and 



noises made). 

 LiNTNER : 5th Rept. Ins. N. Y., 1889, pp. 227-231, figs. 26, 27 (general account). 

 Leavell : in Insect Life, iii, 1891, p. 395 (dug up under a woodshed in Ya.) ; 



ib., Riley-Howard (identification of the same and breeding habit). 



(The above are additional to the references given in the 5th Eept, Ins. N. Y.) 



In the notice of this insect in the Fifth Report on the Insects of New 

 Yorkj incidental reference only is made to its larva. My attention 

 having recently been drawn to some of the peculiar habits of the 

 beetle, it beca,me de- 

 sirable to learn some- 

 thing of its early life, 

 but nothing descrip- 

 tive of its larva or 

 pupa could be found 

 in our publications. 

 On inq uiry of Dr. Fig. 9.— Side view of the!Rhinoceros beetle. 



Riley if he could assist me in the matter, he has most kindly given 

 me for publication the careful and extended descriptions which fol- 

 low, of these two stages, taken from the MS. notes on Undescribed 

 Coleopterous Larvae, upon which, in connection with Mr. E. • A. 

 Schwarz, he has been for a long time engaged. Figures illustrative 

 thereof were also made, to accompany the descriptions, electrotypes 

 from which have been furnished me, with permission for their use — 

 for which privilege grateful acknowledgment is rendered. 



Description of the Larva. 



Length, 13 centimetres. Of the normal LamelHcorn form, enlarging 

 but little posteriorly. Color, dirty yellowish-white, head reddish- 

 brown, mandibles piceous or black, other mouth-parts and legs pale 

 reddish-brown. Head slightly wider than long, convex above, 

 coarsely rugose-punctate over the whole surface, the punctations 

 often umbilicate, the narrow interstices shining; a few long setse are 

 scattered over the surface; epistomatal line almost entirely obliterated 

 and difficult to trace, space inclosed by it distinctly wider than high; 

 clypeus about four times wider than long, trapezoidal, coarsely, not 

 densely punctate, slightly convex longitudinally; no trace of ocelli; 

 antennae shorter than headj consisting of four joints and a large, trajis- 



