Mr. F. P. Pascoe on some Australian Colydiidae. 461 



however, did not appear to be aware of the article in the ' Zoologist ' : 

 but there can be no doubt that this should also be referred to Boihri- 

 deres, as I have convinced myself from an inspection of the type in 

 the British Museum ; indeed, Mr. Newman's phrase, " linea ovata 

 dorsali profunde impressus," is sufficient to show that it is not a 

 DeretapJirus. In the same number of the ' Zoologist,' Mr. Newman 

 describes two new species of this genus — D. Wollastoni and D. 

 EricJisoni*. The former of these I have not seen, nor do I know 

 where the type specimen is to be found. The species described by 

 Germar, in the * Linnaea Entomologica,' iii. p. 223, under the name 

 of Sigerpes piceus, is quite distinct from any of these, although all 

 the authors who have treated of this genus have considered it as 

 synonymous with D. fossus ; but, inter alia, it is only necessary to 

 observe that the " protJwrace subtiliter vago punctata " of Germar 

 shows that it must be quite different from the " prothorax confertim 

 punctus " of Newman. 



The affinity of the two genera, DeretapJirus and Bothrkleres, seems 

 to me by no means close : the peculiar structure of the mouth of the 

 former, the character of the antennae with a club of three subequal, 

 transverse joints, the subapproximate posterior coxae with the inter- 

 femoral process rounded anteriorly, and the subequal basal segment 

 of the abdomen, are all points which contrast strongly with Bo- 

 thrideres. 



With regard to Pycnomerus, the extra-European species with 

 eleven -join ted antennas having been separated from those with ten, 

 Erichson's P. fuliginosus and the two presently to be described must 

 be referred to Penthelispa (ante, p. 111). 



I have nothing to add at present in reference to the genera 

 Ulonotus, Mcryx, and Bitoma. 



The greater part of the new species described below I owe to the 

 kindness of Robert Bakewell, Esq., to whose liberality, as this 

 Journal testifies, I have been so often indebted. There are, how- 

 ever, some others in his collection which, being unique, I have passed 

 over. The Colydiidae are a family whose haunts, to be known, require 

 those who will patiently persevere in their search for them, and 

 hence they rarely occur to collectors who are not also close observers ; 

 it is therefore probable that their species will be found to be much 

 greater than the number at present in our cabinets would lead us to 

 infer. 



In the following descriptions I have avoided, as unnecessary 



* This is the one probably alluded to as a third species by M. Lacordaire, in 

 his ' Genera des Coleop.' ii. p. 377, note. 



2l2 



