396 Mr. D. Sharp 07i the Elateridse of Neio Zealand. 



what resembles CalUdula ; in structure, however, it agrees 

 with Cleis. I believe the Aqoni's lycanwides of Felder to be 

 a slightly aberrant form of Gleosin's, to which genus the fol- 

 lowing species are referable — C. erycinoides (of Walker), C. 

 anchoraj C. Felderij and C. cataviita. 



10. Cleis posticalis. 



Cleis posiicaUs, Guerin, Voy. Duperrey, Atlas, Ins. pi. 18. f. 5. 

 Damias melaxanthe, Boisduval, Voy. de 1' Astrolabe, p. 260. n. 2 (1832-5), 



Duke-of-York Island {Rev. G. Brown). B.M. 



Our example was recently presented to the collection by F. 

 Du Cane Godman, Esq. The allied genus CalUdula contains 

 four species, C. petavius, C. abisara, C. sakwii, and C.Jucunda'j 

 the genus Tyndaris, T. erycinata (the male of which is 

 figured by Felder as that sex of his T. loitifica) and T. 

 Icetifica. 



The Damias elegans of Boisduval is probably congeneric 

 with the Xyctemera suhasjjersa of Walker, for which, there- 

 fore, I shall provisionally retain the name. N. suhaspersa, 

 although coloured somewhat like Secusio annulata, has long, 

 slender, filiform antennae, and is more nearly allied to Cleis. 



XXXIX. — On the^lsderidsd of New Zealand. By D. Sharp. 



In this paper I have put together descriptions of all the 

 beetles belonging to the family Elateridte I have been able to 

 procure from Xew Zealand, and have indicated their struc- 

 tural characters in a manner which, although very imperfect, 

 will, I believe, allow the names and affinities of most of the 

 species to be determined without much difficulty, 



I have included under the Elateridaj four or five species of 

 Eucnemida? ; for though several able entomologists consider 

 the Eucnemidse to be a distinct family, I am unable myself 

 to consider them such so long as the present extension is 

 granted to the Elateridas. The Eucnemidee, in fact, possess 

 no point of real distinction from the Elaterida3 : the form of 

 the head (which is usually relied on to separate the two fami- 

 lies) is not a sufficient character ; for it undergoes various 

 modifications in both the Eucnemidte and Elateridfe, and in 

 some species of Eucnemida its structure is more different from 

 that of the typical members of the family than it is from that 

 of the Elateridse. Taking the term Elaterida3, then, in this 

 wide sense, I have been able to distinguish about sixty-two 



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