177 



arranged in curved rows, with the interstices deeply and elegantly alu- 



taceous ; the head and thorax rather narrow, and the elytra in the 



female (?) very much dilated towards the apex. 



Sead large and rather prominent, with the eyes large and prominent ; 

 antennae long, wholly of a dull yellow colour. 



Thorax small, scarcely wider than the head, slightly dilated posteriorly ; 

 with the sides a little rounded and slightly margined ; rather thickly 

 covered with small distinct tubercles, placed in curved rows, with 

 the interstices very prettily alutaceous ; the posterior margin 

 very slightly sinuated, and the angles scarcely produced. 



Scutellum rather large, triangular, elongate, thickly asperate. 



Elytra rather longer than the head and thorax united, narrower than 

 the thorax at the shoulders, towards the apex very much dilated in 

 the female, and slightly contracted in the male, closely and rather 

 confusedly asperate, with the interstices deeply alutaceous, the 

 apex very little rounded, narrowly pale, with the extreme edge 

 white. 



Abdomen somewhat attenuated, and moderately exposed. 



Legs rather long, bright yellow. 



Underparts pitchy -brown, with the mouth and coxse yellow. 



This species appears to be rare, though widely dispersed. It has 



been found near London by Mr. Waterhouse ; in Devonshire by Mr. 



Wollastou ; and near this place, as well as in Oxfordshire, by myself. 



It is distinguished from others by its castaneous colour, narrow head 



and thorax, by the wide elytra of the female, and by the beautiful 



sculpture of the thorax. One of my specimens, which I suppose to be 



the male, differs in no respect from the rest, except that the elytra are 



contracted towards the apex. 



Trich. a/mbigua, n. s. 



L. c, ^lin. Castaneous-brown, oblong, rather broad, very con- 

 vex, clothed with a golden pubescence, covered with rather large tuber- 

 cles disposed in interrupted transverse rows, with the interstices rather 

 deeply alutaceous ; legs and antennae long and stout. 



Head rather large and broad, eyes small, not prominent ; antennae 

 pitchy -testaceous. 



Thorax large, scarcely dilated posteriorly, with the sides very slightly 

 rounded and lightly margined, covered with rather large tubercles 

 disposed in interrupted transverse rows, with the interstices rather 

 deeply alutaceous ; the posterior margin depressed, sinuated, and 

 slightly reflexed, with the angles acute, very little produced. 



