242 Mr. H. W. Bates on the Geodepliagous 



Tropopterus seriatoporus^ n. sp. 



T. ovatus, elytris gibbosis ; castaneo-rufus, nitidus ; thorace basi 

 grosse punctato ; elytris grosse seriatim punctatis. Long. 2^ liu. 



The labial palpi are obtuse j the maxiilaries taper to a point 

 almost as in Oopterus. The posterior narrowing of the thorax 

 is strongly sinuated and the hind angles produced ; the whole 

 base is very coarsely punctured ; the dorsal line and long 

 basal fovejB are deeply impressed. The sutural rows of punc- 

 tures are impressed in strife, the rest are superficial ; the form 

 of the lateral strise is as in T. sulcicollis. 



Mr. H, Edwards ; one example. 



Gyclothorax insulai-is. 



Olisthopus insularis, Motschulsky, Bull. Mosc. 1864, iv. p. 325, 

 Drimostoma striatopunctata, Castelu. /. c. p. 199 (?). 



Differs scarcely from the common Australian Anchomenus 

 ambiguus, Erichs. [Cyclotliorax id., W. M'Leay), the only 

 difference observable being its more asneous colouring. 



Auckland and Canterbury. 



Drimostoma antarctica, Casteln. I. c. p. 199. 

 M. de Chaudoir suspects this to be an Ahacetus. I have 

 seen at present no species of either genus from New Zealand. 



Subfamily Pterosticsin^. 



Prosopogmus im.pressifronSj Chaudoir, Bull. Mosc. 1865, 

 p. 28 (separata). 



A large species, about 8 lines long, which I have not 

 seen. It is similar in form to Pt. {Trichosternus) australasice^ 

 ])ut much flatter and of a brilliant brassy coppeiy hue, with 

 flattened tarsi, having their upper surface finely reticulated. 



Ti-ichostei-nus antarcticus, Chaudoir, Bull. Mosc. 1865, iii. 



p. 73. 



Megadromus viridilivibatus, Motsch. Bull. Mosc. 1805, iv. p. 251. 



This fine insect was sent home in some numbers, from 

 Christchurch, by Mr. Fereday. The colour is not always 

 cupreous, but some specimens are black, with the green 

 margins occasionally scarcely perceptible. It may always be 

 distinguished from the obscure-coloured T. rectangidas by 

 its larger and broader shape, more protuberant cheeks behind 

 the eyes, and by the thorax being more dilated in front. 



