324 Appendix to the Proceedings 



and a slight impression in the centre of the forehead ; elypeus 

 brown with a virescent reflexion, shining; labrum not emar- 

 ginate or at any rate scarcely so ; the antennae, labrum (which is 

 dull), mandibles, palpi, and other parts of the mouth rufescent; 

 antenna? with the first joint pale, first three joints shining, 

 the rest pubescent. Thorax subquadrate, narrowest in front, 

 narrowly margined on the sides, which are flatly expanded 

 behind, and are rufescent and semitransparent ; base broadly 

 emarginate in the middle; posterior angles broadly rounded and 

 slightly obtuse, anterior angles slightly projecting, dorsal line 

 well marked, but scarcely reaching to the front or base, a deep 

 and well-marked longitudinal fovea on each side of the dorsal 

 line, about midway between it and the posterior angles, and a 

 shallower punctate depression on the inner side of the expanded 

 margin ; the surface sparingly but distinctly marked with scat- 

 tered punctures of various sizes, largest and most frequent 

 along the base and near the dorsal line. Scutellum curvilinearly 

 triangular, rufescent, polished, and with a slight triangular de- 

 pression in the middle. Elytra glabrous, dull, punctate-striate, 

 the punctures in the striae delicate, some coarser punctures 

 scattered irregularly (or sometimes with a tendency to a linear 

 arrangement) over the interstices ; a few larger impressions on 

 the marginal spaces towards the apex; slightly pubescent towards 

 the sides ; the margins and the edges of the suture translucent- 

 rufescent. Under side shining, and scarcely punctate, except on 

 the breast, which is coarsely punctured. Legs testaceous. 



Readily distinguished from Chlcenius glabratus, Dej., by the 

 elytra being black and dull, and showing scarcely any indication 

 of virescence, while in glabratus they are green and metallic. 



4. Ch. immunitus, mihi. 



Elongatus, politus, nitidus, supra ianthinus, subtus niger ; anten- 

 nis,palpispedibusquetestaceis; thorace angustato, sparsissime 

 punctato ; elytris elongatis, depressis, fere glabris, punctato- 

 striatis, interstitiis impunctatis. 



Long. 7§ lin., lat. 3 lin. 



Elongate, polished, shining, above of a rich violet -blue, below 

 black ; labrum and mandibles ferruginous ; antennae, palpi and 

 legs testaceous. Head smooth and impunctate, except a few 

 scattered punctures running across between the posterior angles 

 of the eyes, and one or two larger punctures before these, along- 

 side the eyes and front of the head; labrum scarcely emargi- 

 nate. Thorax narrow, with a few distinct punctures scattered 

 very sparingly here and there over the surface, some of them 



