of some New Species of Exotic Lucanidce. 211 



SPECIES FROM NEW HOLLAND AND NEW ZEALAND. 



Sp. 13. Cacostomus squamosus. (PI. XI. fig. 6 $, fig. 7 ?.) 

 The first notice of this interesting genus was given by Mr. 

 Newman, in Charlesworth's Magazine of Natural History, vol. iv. 

 p. 36i, July, 1840, where it was thus characterized from the male 

 sex alone : — " Dorci facies at corpore squamoso et mandibulis 

 aliter dentatis plane discrepat." 



In the English observations, the small anteriorly angulated 

 head, the entirely divided eyes, the form of the mandibles, the 

 ordinarily-formed ten-jointed antenna?, the convex prothorax, 

 with crenated lateral margins, and the pilose undersurface of the 

 joints of the tarsi were noticed. 



Tiie type specimen was received by Mr. Bowerbank from 

 Sydney, but Mr. Newman considered it to be a native of Assam, 

 or some other neighbouring region of continental Asia. 



In tlie Annals of Natural History, vol. 8, p. 124 (October, 

 1841), I published the descriptions of both sexes of the same in=- 

 sect from the collections of Messrs. Melly and Curtis (by both of 

 whom it had been received from Australia), under the name of 

 Lepidodes rotundicollis, with the following generic character : — 

 Corpus punctatum, punctis albido-squamosis. Caput maris mag- 

 num quadratum ; mandibulis crassis porrectis, subrectis, 

 intus et ad apicem valde dentatis. Prothorax subrotundatus 

 lateribus crenulatis; oculis omnino septatis ; antennarum 

 clava triphylla ; tibiae anticae 5-dentatas, 4 posticae inermeso 

 The male is 14, and the female 10 lines long. 

 The original specimen described by Mr. Newman having been 

 acquired by the British Museum Collection, I have been enabled 

 to ascertain its identity witii the insects described by myself, the 

 relationship of the two insects having been suggested by the late 

 Dr. Erichson in Wiegmann's Archives for 1842, ii. 234, and re- 

 ferred to by Dr. Burmeister, Handb. d. Ent. v. p. 362, with an 

 incorrect reference to the Annals, instead of the New Series of the 

 Magazine of Natural History. In the squamose surface of the 

 body, as well as in its elongated limbs, this genus approaches 

 . Pholidotus and Scortizus irroratus, but both these genera have the 

 mando of the maxilla hooked. It also bears some relationship to 

 Calcodes trratus, W. Perhaps, however, its nearest ally is Rliys- 

 sonutus, K., which has the eyes entirely divided, as well as the 

 mando in both sexes simple ; but that genus differs at once in the 

 velvet-like upper surface of the body, the structure of the man- 



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