Species of the Coleopterous Genus Oi'des. 455 



joint of all the tarsi as long as the two succeeding joints taken 

 together. 



The single male specimen, from the late Mr. Baly's col- 

 lection, is ticketed " Momeba." As there appears to be no 

 such locality, I can only conjecture that Mombas is the place 

 meant. I have little doubt that the species is an African 

 one. It agrees with 0. costata, Baly, in the rather elongated 

 and dilated first joint of the tarsus, although in many other 

 respects it is very distinct from that species. 



O'ides assimilis, sp. n. 



Ferruginea vel lurido-testacea ; antennis (articulis tribus basalibus 

 exceptis), palpis pedibusque et corpore subtus f usco-nigris ; pro- 

 tborace opaco, sparsim punctulato, quam longiori duplo latiori ; 

 elytris subopacis, dense punctatis, epipleuris concavis, fere ad 

 apicem extensis, ab margine externa hand distantibus. 



Long. 13-17 mm. 



Hal. Old Calabar. 



Reddish brown or dull testaceous, with the antennas (the 

 first three joints excepted), the palpi, the legs, and the under- 

 side of the body brownish black. Head with a very faint 

 median longitudinal impressed line above, and with a trans- 

 verse impression between the eyes. Antennas about half aa 

 long as the body in the male, somewhat shorter in the female, 

 with the fourth joint slightly longer than the third or any of 

 the joints which succeed it. Pronotum dull, sparsely punc- 

 tulate, about twice as broad as its length in the middle, its 

 basal margin slightly convex, its anterior margin strongly 

 enough concave, its sides somewhat rounded. Elytra thickly 

 and rather feebly punctured, their epipleura concave, extending 

 almost to the apex, placed close to the margin, scarcely per- 

 ceptibly widened just opposite the middle of the metathoracic 

 episterna. 



This species is somewhat larger and more elongated than 

 0. ferruginea, Fabr. It differs further from this species by 

 the closer punctuation of its elytra, by the greater approxima- 

 tion of the external margin to the epipleura of the elytra, and 

 by the greater relative length of the fourth joint of the 

 antennas. In ferruginea the third joint of the antennas is 

 perceptibly longer than the fourth or any of the succeeding 

 joints, and the epipleura of the elytra, while being relatively 

 almost as long as in the present species, are much further 

 back from the external margin. In both species a very faint 

 mark, darker than the ground-colour and resembling a broad 

 IVI, may be noticed on the pronotum. 



31 s * 



