1866.] MR. F. P. PASCOE ON TE1E COLEOPTERA OF PENANG. 255 



rate it from such genera as Potki/ne and its allies, as, it seems to me, 

 it is one of those aberrant forms in which a technical character must 

 give way to an obvious affinity. 



Tetraglenes. 

 Tetraglenes, Newman, The Entom. p. 300. 



Tetraglenes insignis, Newman, I. c. 



A remarkable and interesting form, having four very distinct eyes 

 placed at a distance from the antennae, and therefore not simply di- 

 vided for the more easy play of those organs as in Astathes, Tetraopes, 

 and many others. Eucomatocera, an allied genus from the same 

 region, has the eyes slightly connected ; but otherwise they have the 

 same position and appearance. In Euthuorus and Spalacopsis, Ame- 

 rican forms, the upper eyes disappear. Borcasta, another near ally, 

 has the eyes of the normal character ; but somewhat intermediate is 

 that most singular genus Aprosopus. The specific name of this insect 

 was given unfortunately on the antithetical principle ; it is small 

 and dull-coloured, and its peculiarities are only distinguishable under 

 the lens. 



Saperdinjs. 

 Entelopes. 

 Entelopes, Guerin, Iconog. du Regne An. p. 245. 



Entelopes glauca, Guerin, I. c; Pascoe, Trans. Ent. Soc. ser. 2. 

 iv.pl. 16. f. 2. 



Found also in Borneo, Singapore, and Java. 

 Entelopes similis. 



E. rubro-fulva, subnitida, infra nigra ; scutello fere semicircu- 

 lari, apice haud lobato. 



Reddish fulvous, slightly nitid, especially on the head and pro- 

 thorax ; head and prothorax nearly glabrous, almost obsoletely 

 punctured, the latter much shorter than the former ; scutellum nearly 

 semicircular, not elevated or bilobed posteriorly as in E. wallacei ; 

 elytra much punctured, with numerous small glossy granules at the 

 base (one over each puncture) ; body beneath, intermediate and 

 posterior femora, except at their apices, and their coxae black, their 

 trochanters yellow ; antennae with the terminal joints blackish. 

 Length 4|-(c?)-5f (?) lines. 



Extremely like Entelopes wallacei, but with a differently formed 

 scutellum, the upper surface more or less glossy (more so in the 

 male), larger and more numerous granules on "the elytra, and the 

 intermediate femora, as well as the posterior, black. 



Entelopes ioptera, Pascoe, Trans. Ent. Soc. ser. 2. iv. p. 108, 

 pi. 23. f. 8. 



Taken also by Mr. Wallace at Sarawak and Singapore. A more 



