Species of Coleoptera from Rodriguez. 117 



shorter and smaller, a little narrowed at its base, the third 

 nearly as long as the first, parallel-sided, the fourth to tenth 

 nearly quadrate, scarcely longer than broad, eleventh nearly 

 twice as long as the preceding, rounded at the apex. Thorax 

 arched in front, as long as broad, slightly narrowed in front 

 and behind. Scutellum pentagonal. Elytra nearly twice as 

 broad as the thorax, and twice and a half as long, parallel, 

 rounded at the apex, punctate-striate. Legs rather short and 

 stout ; tarsi rather short and stout, the basal joint scarcely 

 elongate, the second to fourth a little shorter, the fifth elongate 

 and slender. Body velvety. 



Xylodes albovarius^ sp. n. 



X niger, velutinus ; thorace supra albo, medio nigro annulato, mar- 

 ginibus nigris ; elytris basi fasciaque post medium deutata albis, 

 humeris nigris. Long. 2 lin., lat. |- lin. 



Cioidae. 



Lyctus rugicollisj Walker. 



Ditoma rufficoUis, Walker, Ann. & Mag. Nat. Hist. 1858, ii. p. 206. 



Thorax scarcely longer than broad, strongly arched in front, 

 slightly narrowed behind, the sides nearly straight, only very 

 slightly sinuous, tuberculate-serrate ; upper surface rugulose- 

 punctate, the disk with a rather deep oblong impression. Elytra 

 a little broader than the thorax and twice and one fourth as long; 

 each elytron with six rows of white, club-shaped, erect scales, 

 and with a line of moderately large shallow punctures on each 

 side of each row of scales. The antennaj, head, and thorax 

 are also more or less clothed with whitish scales, those on the 

 antennse decumbent. The apical joint of the antennae is a 

 little longer than broad, a little narrower towards the apex, 

 which is rounded. 



This species closely resembles L. ohsitus, Woll. ; but that 

 has the apical joint of the antennae twice as long as broad, 

 the thorax is more distinctly punctured, the central fovea less 

 deep, and the scales with which the body is beset are much 

 narrower. 



Hah. Ceylon (type), Rodriguez, China, Siam. 



Ci's insularis, sp. n. 



C. oblongus, convexus, piceo-uiger ; capita leviter convexo, crebre 

 sat fortiter punctate ; labrum palpisque testaceis ; thorace longi- 

 tudine paululo latiore, convexo, antice paulo angustato, crebre sat 



Aim. & Mag. N. Hist. Scr. 4. Vol. xviii. 9 



