of Australian Coleoptera. cxvii 



Agasma semicrudum. 



Caput, prothorax. elytrorum dimidium basale, coxa, pro- et mesofemora, metafemo- 

 rum basis, pro- et nwsolibiarum basis, pro- meso- et metasternum rufa : antenna, 

 oculi, plaga epicranii longitudinalis, elytrorum dimidium apicale, tarsi, pro- et 

 mesotibiarum apex, metapedes omninb nigra : abdomen subtus ehalybeum, 

 apice profundi emarginatum. {Corp. long. '66 unc. Elytrorum lat. max. 

 ' 18 unc.) 



The clypeus and mandibles being rather long and porrected the head has a length- 

 ened appearance anteriorly, it is distinctly exserted and slightly restricted behind, and 

 has a very considerable resemblance to the head of several Lepturidae, very particu- 

 larly to that of Khamnusium Salicis : the clypeus terminates in a straight anterior 

 margin : the labium extends much beyond the clypeus, and is rounded in front with a 

 scarcely observable median indentation ; the mandibles are rather longer than the 

 labrum, strong and hooked, each has a distinct but small tooth immediately before 

 the apex, their inner margin is slightly dilated, membranous and transparent: all the 

 palpi exhibit three distinct joints of about equal length, the maxipalpi being as a whole 

 and also in their several parts considerably larger than the labipalpi ; the apical joint 

 in both is slightly incrassated externally, and is abruptly terminated in an obtuse 

 point : the antennae are rather distant at the base, about half the length of the body, 

 and composed of eleven joints, which are of nearly uniform thickness, there being, 

 however, a perceptible but very gradual attenuation towards the apex ; the second joint 

 is the shortest ; the first and third are of about equal length, and each of the others 

 very gradually increases in length towards the apex the last being longest: they are all 

 perfectly black and clothed with very short black hairs, more especially about their 

 apex ; the eyes are rather small, strictly reniform, and situate behind but not very 

 near the base of each antenna, they are perfectly black ; the face and epicranium are 

 somewhat depressed and flattened ; on the epicranium is a conspicuous, black, longi- 

 tudinal line extending in front between the eyes, and hidden behind by the anterior 

 margin of the prothorax ; all parts of the head unless otherwise specified are uniformly 

 red. The prothorax is nearly equal in its extreme length and extreme breadth, but 

 while the length is uniform, the anterior and posterior margin being straight, the 

 breadth is various, the anterior portion of its lateral margins being dilated (but not 

 attenuated as in some of the Telephori, &c, where it becomes almost membranous) 

 convex, and wider than the head, and the posterior portion of the same margins re- 

 stricted, concave, and narrower than the head ; its disk is slightly uneven, and its 

 colour uniformly red. The elytra are considerably wider than the prothorax ; to- 

 wards the apex they are somewhat narrowed, and at the apex conjointly but not 

 severally rounded ; they are convex dorsally, and each has six longitudinal and nearly 

 equidistant ridges, one sutural, four discoidal and one costal ; the first or sutural 

 ridge commences immediately behind the scutellum and extends to the apex, the se- 

 cond and third commence at the base and cease in the apical area, the fourth com- 

 mences below the humeral angle and ceases in the apical area, the fifth is completely 

 lateral commencing very near but beneath the humeral angle, and ceasing in the 

 apical area, the sixth is costal and continuous to the apex where it unites with the 

 first ; there is an indication of union among the four discoidal ridges at their distal 

 extremity : the ridges as well as the interspaces are minutely punctured, and each 



