422 Mr. C. O. Waterhouse on new Longicorn Coleoptera. 



but the dots are smaller ; tlie basal region is strongly but 

 not very closely punctured, and there are also numerous 

 minute black punctures traceable over the surface. The 

 antennas are sparingly beset below with rather long hairs. 

 The surface of the thorax is uneven ; on the disk, rather in 

 front of the middle, are two obtuse slightly raised tubercles ; 

 and behind these a third one, much less distinct, may be traced 

 in the middle. 



The above description is taken from the male. The female 

 example is rather more uniform grey ; the brown at the base 

 of the elytra is scarcely visible ; and the dusky line near the 

 apex is wanting. 



Lepturidse. 



Dysmathosoma, n. gen. 



Head as broad as long, rather flattened ; muzzle extremely 

 short ; eyes rather prominent laterally, coarsely granular, 

 slightly emarginate in front, not supported posteriorly by the 

 cheeks ; antenna! tubercles slightly raised, widely separated. 

 Antenna? robust, reaching rather beyond the middle of the 

 elytra, situated considerably in front of the eye; the basal 

 joint moderately elongate, thick, slightly bent, much nar- 

 rowed towards the base; the second joint small and trans- 

 verse ; the third and fourth subequal, nearly as long as the 

 first, but more slender ; the fifth to ninth joints subequal, all 

 distinctly longer than the fourth *. Thorax scarcely broader 

 than long, slightly constricted immediately behind the ante- 

 rior angles, with an obtuse not very jDrominent tubercle at 

 the side, rather in front of the middle; behind this the sides 

 are parallel ; disk with two oblong-ovate swellings rather 

 before the middle, and smaller round ones at the base. Scu- 

 tellum moderately small, triangular. Elytra at the base 

 twice the width of the front of the thorax, gradually but not 

 much narrowed posteriorly, flattened on the back, rounded at 

 the apex. Intercoxal process of the prosternum very narrow, 

 so that the coxee are nearly contiguous posteriorly, arched. 

 Mesosternum not very wide, sloping in front. Metathoracic 

 parapleura moderately broad at the base, gradually acuminate 

 posteriorly. Abdomen with the apical segment rather flat, 

 triangularly notched at the apex. Legs very robust; the 

 femora very thick, somewhat narrower towards the base, 

 rather suddenly emarginate below at the apex. Tibiai some- 

 what enlarged at the apex ; the middle pair with two strong- 

 spurs at the apex ; in the posterior pair one of the inner 



* The teutli and eleveutb joiui^^ are wauling in the specimen described, 



