NEW PHYTOPHAGOUS COLEOPTERA 213 



This species seems to be intermediate between R. fraternalis 

 and purpurea Baly. It differs from the first in the distinctly 

 separated episteme, in the shining not finely granulose thorax 

 and in the basal depression of the elytra which in the present 

 species is scarcely perceptible. R. purpurea is distinguished by 

 the small eyes and the head, which is not narrowed between 

 the former. 



33. IVodostoma, lae vicoli is, n. sp. 



Subquadrate-ovate , convex, dark fulvous, shining. Antennae 

 (three basal joints excepted) apex of femora, the tibiae and 

 tarsi, black. Head and thorax impunctate. Elytra with strong 

 basal depression, punctured within the latter only. 



Length 2 lines. 



Head entirely impunctate at the vertex ; encarpae separated 

 by a single row of deep punctures; episteme forming a single 

 piece with the front, impressed with a few very fine and di- 

 stantly placed punctures ; labrum fulvous ; jaws black. Antennae 

 more than half the length of the body the intermediate joints 

 widened and somewhat flattened, three lower joints light ful- 

 vous, the rest black. Thorax twice as broad as long, with a 

 distinct transverse groove in front of the anterior margin, the 

 sides evenly rounded, all the angles acute, the posterior ones 

 produced in a short tooth, surface entirely impunctate. Elytra 

 subquadrate, convex, with a distinct transverse depression be- 

 low the base, the latter strongly raised, longitudinally sulcate 

 within the humeral callus, the latter continued in a strongly 

 raised costa to half the length of the elytra and limited within 

 by a rather deep row of punctures , rest of the disk almost im- 

 punctate with the exception of a single line of punctures accom- 

 panying the suture and a few others within the basal depres- 

 sion. Femora unarmed, their apex as well as the tibiae and 

 tarsi entirely, black. 



Sumatra, Ajer Mantcior, August (0. Beccari), 



There will be no difficulty in distinguishing this species on 



