of the Royal Physical Society. 295 



Var. rugifrons, mihi. 



Supra cupreo-viridis, capite crebre aciculato, thorace sat fortiter 



trans versim aciculato. 

 Long. 4£ lin., lat. 1| lin. 



The following are the points in which this variety differs from 

 the typical specimens :— 



The head, instead of being almost smooth in the middle and 

 towards the back, and only faintly furrowed on the sides, is 

 covered closely all over with distinct fine wrinkles, mostly lon- 

 gitudinal, with a few punctures scattered among them behind. 

 The thorax also is much more coarsely transversely wrinkled, 

 and the colour is yellowish-green instead of bluish-green. 



I have not thought these distinctions sufficient to constitute 

 a different species, but they are too well marked to allow me to 

 pass it over unnoticed. 



4. C. compressus, mihi. 



Depressus, supra viridi-seneus, nitidus ; capite antice, antennis 

 pedibusque brunneis ; thorace angulato ; elytris viridibus le- 

 viter seneo-marginatis, fortiter striatis ; subtus brunneus vel 

 nigro-piceus. 



Long. 2f-3 lin., lat. 1| lin. 



Smaller, flatter, and more depressed than any species of Ca- 

 tascopus yet described ; having the compressed form of an insect 

 living under bark; shining, above brassy-green; the elytra 

 greenest, the thorax less so, the head only with a faint reflexion 

 of green on the back part ; the rest of the body blackish-brown 

 or piceous. Head slightly rugose on the sides, with an ob- 

 lique depression inclined towards the vertex; behind smooth; 

 labrum much produced, opake; clypeus shining, very slightly 

 emarginate in front, with a fovea on each side; antennse 

 brown, first joint paler. Thorax somewhat convex, smooth and 

 impunctate, with a deep dorsal line, the sides and base slightly 

 reflexed and margined ; the base obtusely truncate ; the posterior 

 angles excised, so as to be nearly right-angled ; after leaving the 

 excision which forms the right angle at the base, the sides widen 

 out gradually till about a third from the front, where they form 

 a pretty sharp prominent angle*, and then gradually become 

 narrower till they reach the anterior angles, which are rounded ; 

 the slight projection or angle alluded to, causes the sides of 

 the thorax, instead of appearing rounded, to appear as if an- 

 gular; there is a fovea at the base on each side of the dorsal 

 line, about midway between it and the angle; the reflexed 



* This is a character peculiar to all the true Catascopi which I have seen. 



