508 shuckard's descriptions of 



edge of the posterior tibiae pilose, and the margins of the three- 

 dilated joints of the tarsi of a silvery white. 



This fine insect is from New Zealand. I have seen a spe- 

 cimen in Mr. Curtis's possession, from Van Dieman's Land, 

 which, from its great resemblance, is possibly identical; but if 

 so, it must be of the opposite sex, as its rostrum is not denticu- 

 lated, and it is barely more than half the size of mine. 



Family. — Bostrichid^. 



Genus. — Tesserocerus, Sanders.^ 



Sp. 2. Tess. ustulatus. Shuck. Cylindricus, rufus, capite 

 elytrorumque apicihus nigris. (Length 4| lines.) 



Rufous, with the head black, face densely covered with long rufous 

 hair, vertex bald : thorax smooth and shining, having a small cor- 

 diform space scratched longitudinally just before the base in the 

 centre, in the middle of which there is a deeper impressed line that 

 advances forward, and meets a delicately indicated elevation, which 

 extends to the occiput : each of the elytra with four costse, the 

 three first contiguous and parallel to the suture, and having a 

 crenato-striated narrow interstice between them ; the fourth re- 

 mote, being placed on the margin of the elytron ; between the 

 latter and the third the Insterstice is nearly as wide as the space 

 occupied by the three contiguous costa3 combined, and is quite 

 smooth, the external boundary of the third costa, being shown 

 by a faint line only, each of the costae at the apex of the elytra 

 is very slightly produced : the legs, with the knees, black, and 

 the tibiae transversely sulcated, the anterior pair internally, and 

 the others externally. 



I much doubt if this be distinct from the type, although the 

 colour differs ; yet, as my friend J. S. Sanders, Esq. has not 

 noticed the longitudinal elevation and impressed line upon the 

 thorax, it may perhaps be different ; mine, also, has not the 

 two minute contiguous pilose patches at the base of the thorax, 

 in lieu of which it has a cordiforra longitudinally scratched space, 

 down the emargination of which the impressed line passes ; this, 

 however, may be denuded. He also speaks of the fourth costa 

 as being obsolete : the fourth upon mine is even more strongly 

 marked than the others, and is placed upon the extreme 



'' Trans. Eiit. Soc. . Vol. I. pt. 3, p. 155; PI. 14. f. 6. 



