216 Mr. H. W. Bates on the Longicorn Coleoptera 



2. Acanthoderes Egaensis, White. 



Sclerorwtus Egaensis, White, Cat. Long. Col. in Brit. Mus. ii. p. 364, pi. 9. 

 f. 3. 



The third to the sixth antennal joints are produced and acute 

 at the apex beneath, the fourth to the eleventh are very slender. 

 The extreme tips of the elytra are distinctly truncated. All the 

 tibiae are compressed, the anterior pair gradually dilated (wider 

 in the 3 than in the 5 ) from the base to the apex. 



This species has a peculiar fades, arising from its short figure, 

 black colour, and the slenderness of its antennae. Owing to 

 this, probably, it was placed in a different genus by Mr. White. 

 The genus to which he referred it (Scleronotus, Dejean, at that 

 time a mere catalogue name) has since been characterized by 

 M. Thomson (Class, p. 340), and, from the diagnosis, appears 

 to be very closely allied to Acanthoderes. M. Thomson places 

 it amongst the Anisoceritae, regardless of the shape of the ante- 

 rior acetabula, which he gives as rounded in Scleronotus and 

 angulated in the definition of the group to which he refers it. 



3. Acanthoderes fuscicollis, n. sp. 



A. oblongus, fuscus, tomento luteo (capite thoraceque sparsim) vesti- 

 tus : elytris breviter transverse truncatis, seriatim nigro punctatis, 

 utrinque maculis duabus suturalibus duabusque lateralibus fuscis 

 notatis. Long. 5 lin. c? • 



Head and thorax dusky, with specks of ochreous clay-coloured 

 pile, very scanty on the disk of the latter. Antennae about the 

 length of the body, the apices of the third to fifth joints produced 

 beneath ; black, the base to the middle of the third joint speckled 

 with ochreous atoms ; the basal half of the fourth and the base 

 of the remaining joints pale testaceous. The lateral tubercles of 

 the thorax are large and slightly pointed ; the disk has a longi- 

 tudinal smooth line and a large obtuse elevation on each side. 

 The elytra have a few coarse punctures at the base, a few small 

 round black spots arranged in lines, and on each four larger 

 blackish spots, namely two near the suture (one before, one after 

 the middle) and two on the side beyond the middle j there are 

 also two irregular transverse patches of a paler ochreous colour. 

 Under surface of the body black, shining; sides of the meta- 

 sternum and second to fifth ventral segments ochreous. Legs 

 black, shining, speckled with ochrey pile ; middle and hind tibiae 

 paler, their apices dusky. The fore tibiae are gradually and 

 widely dilated. 



Ega; on branches of dead trees in the forest. The species 

 has much resemblance to A. fascialis, White. 



