364 Mr. F. P. Pascoe on some new or little-Tcnown 



tellum long, subtriangiilar, black ; elytra wider than tlie prothorax, the 

 sides nearly parallel, coarsely and closely punctured, a semicircular 

 band at the base enclosing the shoulder, a zigzag at the middle, and a 

 straight narrow band towards the apex black ; legs pale testaceous, 

 the femora clavate, shining, ferruginous, the base pale ; body beneath 

 nearly glabrous, brown, darker on the throat and breast. Length 3^ 

 lines. 



The nearest ally of this species appears to be signiferum, 



Newm., a much darker and differently marked insect. The latter, 



together with C. scutellare, Fab. ( piceum, Newm.), is referred to 



a gemis neither named nor described by that author, but for which Mr. 

 White has adopted, also without description, the name of Callidiopis 

 (Blanch.). I don't know what the characters may be which are to 

 distinguish it from the polymorphous Callidium. The antennae and 

 prothorax are as variable as the coloration. 



Tmesisterjjtjs [Cerambycidae]. 

 LatreiUe, Eeg. An. v. p. 121 (1829), non Serville (1833). 



Tmesistermis exaratus. 



T. chalceo-fuscus, griseo macidatus ; prothorace valde transverso ; elytris 

 fortiter sulcatis, interstitiis elevatis, fasciis griseis interruptis omatis, 

 apice extus spinosis. 



Hab. Aru. 



Robust, dark bronze-brown, more or less spotted with patches of 

 greyish hairs ; head broad in fi-ont, narrowed behind the eyes, two 

 slightly raised lines forming a A above the epistome, the vertex cana- 

 liculate, four to six spots in a line beneath the eyes, two between and 

 foiu' behind them ; prothorax very transverse, rounded and narrowed 

 anteriorly in the male, the border in front nearly straight, dilated ante- 

 riorly in the female, and the border broadly emarginate for the recep- 

 tion of the head, didl bronze, coarsely punctured at the side, leaving a 

 broad, smooth, shining line in the middle ; scutellum transverse, 

 roimded behind ; elytra strongly sulcated, the interstices forming- 

 broad, raised lines, the central ones more or less united posteriorly and 

 not reaching the apex, the sidcated lines filled in here and there with 

 a greyish pile, forming partial spots which assume the appearance of 

 interrupted bands (two or three — in some individuals scarcely ap- 

 parent), apex strongly spined externally ; legs and antennae sparsely 

 pubescent ; body beneath glossy chestnut-brown, a single white spot 

 on each side of each abdominal segment. Length 9 lines. 



The nearest affinity of this well-marked species is with ;S^. sulcati- 

 pennis, Blanch., from which, amongst other characters, it is distin- 

 guished by its metallic colour and apiculate elytra. 



