Lucanoid Coleojjfera. 77 



tent myself with a sectional arrangement, whicli, how- 

 ever, is not quite satisfactory as regards certain of the 

 species ; few of them attain any very considerable size, 

 they exhibit great similarity in general form, differ consi- 

 derably in the armature of the tibise as well as in the 

 dentition of their mandibles, and, with the exception of 

 a somewhat anomalous species from Borneo [P.passa- 

 loides) in which the elytra in both sexes are punctate- 

 striate, their surface is generally glabrous and shining, 

 and their coloration variable. 



The Cladognathidce appear to assimilate more closely 

 to the Dorcidce, more especially to the genera Eurytrache- 

 Itis and Dorcus ; besides the differences already pointed 

 out by Dr. Burmeister and Professor Lacordaire, I may 

 mention that the females of the Cladognatliidce are in- 

 variably destitute of the tubercles on the head, a character 

 so constantly exhibited in the females of Eurytrachelus 

 and Dorcus. 



Cladognathus politus, Parry. 



Among the species presenting difficulty as to their 

 proper location is C. politus, of which I received a single 

 specimen (probably only the var. minor, the mandibles 

 being scarcely longer than the head) from Mr. Bowring's 

 collection. Although the habitat India was assigned 

 to it in my former Catalogue, I have now some reason to 

 suppose that either China or the Indian Archipelago may 

 ultimately prove to be correct. Unfortunately the ab- 

 normal condition of the mandibles, as shown by their size 

 in comparison with the total length of the insect, as well 

 as our ignorance of the female, renders its true position 

 very problematical. Taking into consideration, however, 

 the deeply emarginate front of the head, of which the 

 anterior angles are bisinuate, the armature of the pos- 

 terior angles of the pro thorax, and the smooth and polished 

 appearance of the insect, and its strongly armed tibiae, I 

 have deemed it advisable to locate it temporarily in 

 the genus Cladognathus as at present restricted. 



Metopodontus cinnamomeus , Guerin. 



A form somewhat aberrant from the Javanese specimens 

 of this insect, and representing the var. max., is contained 



