118 Journal New York Entomological Society. [voi. iv. 



zontal effects of distribution. I am studying the genus Lyccrna and 

 think many names will eventually have the same value as those under 

 pseiidargioliis, of which we now have nine names. They represent what 

 many of the others will in the future — gradational geographical forms 

 and seasonal variations. When people put date and locality on the 

 pins we will be able to find out these things. I have expressed my 

 views in regard to Painphila. See Can. Ent., Vol. XXVII, p. 261. The 

 variations of comnia should not be entitled to specific value. The spe- 

 cies in N"isotiiades are in bad shape and need careful study. I believe 

 we have some synonyms among them. The species of Aegiale are in- 

 teresting, and may be modifications produced by season, condition of 

 food plant, etc. Neumoegeni is a very distinct species. The others 

 are more nearly related. 



DESCRIPTION OF THE LARVAE OF SOME HETERO- 

 MEROUS AND RHYNCHOPHORUS BEETLES. 



( Plate IV, > igs. 1-6 ) 

 Bv H. F. WiCKHAM. 



The following descriptions have been written for the sake of mak- 

 ing known to American students the immature stages of some of our 

 beetles. In view of how little has been done in this country, it will not 

 surprise most Coleopterists to hear that they all belong to genera in 

 which none of the species peculiar to our continent have yet been 

 studied in the larval state. 



Nearly all of the details are from camera-lucida drawings of balsam 

 mounts ; they are, however, not all on the same scale, being made from 

 time to time as leisure offered and with different instruments. 



Megeleates sequoiarum Casey. (Fig. i.) 



Larva cylindrical, elongate, tapering slightly to each end. Color 

 in spirits yellowish, head somewhat darker, mouth parts castaneous. 

 Length 16 mm. Head barely perceptibly narrower than the prothorax, 

 sides rounded, front nearly vertical, flattened. A distinct ridge runs 

 down on each side of the frontal declivity to the base of the mandibles. 

 The ocelli are situated on the upper or posterior portion of this ridge 

 and are connected with each other by a transverse, very tortuous raised 

 line. Antenna situated exterior to the mandibles, apparently four- 



