114 January 



brown, horny and punctate. On the dorsal side, at the basis, this segment 

 has a semicircular, velvety spot, like the preceding segments. On the ven- 

 tral side it has a semicircular excavation with a finely denticulated anterior 

 (arcuated) margin, a finely granulated bottom, and a posterior (straight) 

 margin, indicated by a row of short, rude, longitudinal furrows. A short 

 longitudinal groove may be seen, besides, among the granules of the bot- 

 tom; it is evidently the anus. 



There is no distinct suture between the dorsal and ventral segments, 

 neither on the thorax, nor on the abdomen. 



This larva resembles in every respect that described by Mr. Coquerel, 

 except that he counted eight abdominal segments, instead of the normal 

 number of nine, which admits of no doubt in my specimens. A slight 

 diiference is also observable in the shape of the horny, striated spots of 

 the first thoracic segment; in the larva from Madagascar, their anterior 

 end is broader th|,n the posterior one. Mr. Coquerel difiiers besides from 

 me in the interpretation of certain parts of the head ; he does not mention 

 the minute palpiform projections and considers as mandibles, wbat I take 

 to be the lateral corners of the cephalic shell, which, in normally organ- 

 ized larvae, are the places of insertion of the antenna?. iMy supposition is 

 .strengthened by the comparison of the larva of J/rA/.s/'.s, where the antenna? 

 are developed. 



The pupa of F. hndhis is U.35 long, elongated, pale yellowish, with 

 sparse hairs and bristles on the head and hairy tufts at the tip of the 

 body. (See Coquerel's figure, 1. c. Tab. XV, fig. 8 K.) 



The flat, sharp-edged, denticulated head of the larva of Forna.r with its 

 connate parts of the moiith, apparently capable only of almost impercepti- 

 ble motions, and the small oral opening, render it very probable, in my 

 opinion, that these larva? pierce the skin of other wood-boring larva) and 

 suck the contents of their body. In this respect they would only resem- 

 ble their congeners, the Elaterideous larvae, some of which are known to 

 be predaceous. 



Dr. Horn found numerous larvae and pupjis in June, in the stumps of 

 oak trees undergoing a state of dry decay. When about to assume the 

 pupa state, the larva becomes doubled upon itself, U-shaped. The pupa 

 state lasts two weeks. (See Proc. Entoni. Soc. Phila. 1801, p. 4o.) 



FORNAX ORCHESIDES Newm. (?) 

 (Plate 1. Fig. 5.) 



Since 1 obtained from Dr. Horn the previous larva, I easily recognized 

 a.s a Forhd.r an undetermined larva of my collection, which I had found 



