18 Mr. D. Sharp on the 



should have almost preferred to use Mr. Wollaston's Tarphio- 

 mimetes had it not been objectionably polysyllabic. 



4. Tarphiomimetes Laivsom, Woll. This species may also 

 be at present classed in the genus Ulonotus, though it is aber- 

 rant from the sides of the thorax being without notches. 



5. Tarphiomimus indentatus^ Woll. With this Ectomida 

 lacerata, Pasc, is specifically identical, as I judge both from 

 the descriptions and from information received from Mr. Pascoe. 



6. Bitonia insidari's, White, which is at present correctly 

 associated with the generic name given to it by White. 



I have included in the eighteen species I have described a 

 very interesting insect allied to Aglycyderes setifer, West. 

 Though Aglycyderes lias not yet been referred to the Colydiidffi, 

 it appears to me that this may at present be done with ad- 

 vantage. 



Thus the number of species of Colydiida^ at present known 

 to me from New Zealand is twenty-four. This number, though 

 large, will undoubtedly be much increased (more than doubled 

 I have no doubt, and highly probably even quadrupled) ; and 

 it is pretty certain that, like the Atlantic islands. New Zealand 

 will prove to be very rich in species closely allied to TarpMus ; 

 the genus SyncahiSj indeed, here described, is especially close to 

 the European and Atlantic TaipMus. I anticipate that some 

 very interesting comparisons will be suggested when the New- 

 Zealand forms of the family are better known, as I hope may 

 soon be the case. 



The Colydiidae form one of the less specialized of the Coleo- 

 pterous families. Many species appear to feed on the woody 

 tissue of phanerogamic plants, others on dry cryptogamic 

 products, while others, again, are found amongst much-decayed 

 leaves and woody matter in dark woods. Other species, on 

 the contrary, prey on the larvae of wood-feeding Coleoptera ; 

 and these species are often slender, elongate, and subcylindric 

 in form, to enable them to penetrate the burrows formed by 

 their victims. It is probable that New-Zealand species will 

 be found of all these groups. 



Ulonotus Brouni, n. sp. 



U. oblongus, piceus, supra variegatus, insequalis (et in elytris tuber- 

 culatus), subtus setulis brevissimis tenuissimisque adspersus ; pro- 

 tborace lateribus bis indentatis ; antenuis, tibiis tarsisque rufo- 

 ferrugineis, clava, tibiisque in medio nigrescentibus. Long, corp. 

 4^ ra. m. 

 This species is very closely allied to TarpMomimetes viri- 



dipi'ctus, Woll., but is lai-ger, and has the indentations at the 



