jMr. J. Nic'tuer on new Ceylon Coleopiera. 181 



deiitc inajore, 6 longitudine iuter 4 et 5, ovato, 7-8 subsequalibus, 

 9 majore, 7-9 apice any ust alls, tuhiforniibas, 10-11 ovatis, clavam 

 formautibus, vel art. 9 globoso, 9-1 1 clavain forniantibus. Palpi 

 inaxill. art. ultimo minimo, apice truncato. ^faudibulse deiite bifido 

 inuiiita!, basi fortiter abrupteque dilatatai. Tborax foveis biisalibus 

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



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

 a 3-jointcd antennal club. Tiie latter arc further distinguisiicd 

 by havina; a slijj;]it sinuosity in the rounded outline of the basal 

 angles of the tiiorax, by having the posterior part of tlie nieta- 

 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 in 

 the same spex^ies. 



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 tive 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 antenriEe. 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 shoi"t elevated ridge at the shoulder. Legs elon- 

 gated; coxa? large, the two posterior ones rather distant from 

 each other; two posterior trochanters much elongated, incras- 

 sated at the tip ; aj)ex of tibiiP subcylindric, but not narrowed, 

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

 of equal size, the first longer, the f)urth a little shorter; two 



