Mr. J. Nietner on new Ceylon Coleoptem! 1^^ 



dente majore, 6 longitudine inter 4 et 5, ovato, 7-8 subsequalibus, 

 9 majore, 7-9 apice angustutis, tuhiformibuSy 10-11 ovatis, clavam 

 formantibus, vel art. 9 globoso, 9-1 1 clavam formantibus. Palpi 

 maxill. art. ultimo miuimo, apice truncate. Mandibulse dente bifido 

 munitae, basi fortiter abrupteque dilatatse. Thorax foveis basalibus 

 nullis. Pedes elongati, tarsis art. 2-3 subsequalibus. 



I include in this species individuals with a 2- and others with 

 a 3-jointed antennal club. The latter are further distinguished 

 by having a slight sinuosity in the rounded outline of the basal 

 angles of the thorax, by having the posterior part of the meta- 

 thorax and the base of the abdomen sensibly incrassated, and 

 the head rather less quadrate than the former. However, the 

 individuals thus distinguished being in all other respects exactly 

 like those with the 2-jointed club, I cannot help looking upon 

 all these distinctions as sexual ones, and uniting the insects id 

 the same species. 



The head from the eyes to the neck is of a transverse sub- 

 quadrate form merging into the oval by the angles being rounded 

 off; the anterior part is narrowed. This is the typical form: 

 of the skull in all the five species of this group. The eyes in the 

 present species are middling. The antennae are rather approxi- 

 mated at the base, and inserted in the centre of the front under 

 a ridge which runs across it from eye to eye. The first joint is 

 biacuminated at the apex ; the fifth is longer than the adjoining 

 ones ; joints 7-9 in the individuals with the two-jointed, and 

 7-8 in those with the three-jointed club, are of a peculiar con- 

 struction, being narrowed at the apex, and fitting into each 

 other like the tubes of a spy-glass. The club-joints are ovate, 

 flat at the base ; the last is large and obtusely acuminated. I 

 consider the principal distinguishing character to lie in the re- 

 markable structure of joints 7-9 of the antennse. The maxillary 

 palpi have joint 2 rather strongly incrassated at the apex ; joint 

 3 obovate, narrowed at the base ; joint 4 very minute, truncated 

 at the apex. The mandibles are furnished with a bifid tooth, 

 and are strongly and abruptly dilated at the base. The thorax 

 is of an obovate or obcordato-ovate form, being rather strongly 

 rounded off before the middle and gradually narrowed below it ; 

 the usual basal impressions are wanting. The posterior margin 

 has two slight sinuosities ; the posterior angles are rounded-off 

 or obliquely truncated. Scutellum obsolete. Elytra furnished 

 with a very short elevated ridge at the shoulder. Legs elon- 

 gated ; coxae large, the two posterior ones rather distant from 

 each other ; two posterior trochanters mnch elongated, incras- 

 sated at the tip ; apex of tibiae subcylindric, but not narrowed, 

 and hairy, especially in the second pair ; joints 2-3 of the tarsi 

 of equal size, the first longer, the fourth a little shorter; two 



