42 



journal r. a. s. (ceylon). [Vol. III. 



from all the preceding species. The body is regularly 

 oval, thorax and elytra convex, pubescent. The head is 

 subquadratic-ovate the eyes rather small but prominent, 

 the neck is altogether wanting. The antennae are at the 

 base as distant from each other as they can be, being inserted 

 below the eyes; the club is three-jointed ; the joints increase 

 gradually in size from the third to the eleventh. The maxill. 

 palpi have the second joint slender, the third rather pear-shaped, 

 the fourth minute and acuminated. The thorax is very ample, 

 semiorbicular, of the shape and nearly the size of the apical 

 half of the elytra, the basal angles are acuminated and slightly 

 envelope the shoulders, the posterior margin is prolonged in 

 the middle, towards the scutellum the foveas or basal impres- 

 sions are two, and rather distant from each other. Scutellum 

 obsolete. Elytra with two depressions at the base. Tibiae 

 straight; tarsi with joints 1-4 subequal or very nearly so. 

 Mesosternal carina middling. 



No. IV. 



Cyclosomus flexuosus. Fab. * 



To judge from what Lacordaire says of this g. in his g, 

 des Col. — a work upon which, as I have said elsewhere, I look 

 as containing the essence of all former researches — it would 

 appear that the present species differs very materially from 

 the three others hitherto described, namely, in the flatness 

 of the antennal joints, in the serrated edges of the tibial 

 spurs, in the existence of the tarsal brushes in the male, and 



* This insect was erroneously described by me in the first edition of 

 these Papers. However, I retain part of my description, as it notices 

 some peculiarities of the insect, of which I find no mention made in any 

 of the works within my reach. It was owing to these peculiarities, 

 and Lacordaire's statement that the three known species were of 

 yellowish and green colour, as well as to having no detailed description 

 of the C.flex.) that I described it as new. 



