540 MR. C. J. GAHAN ON THE [DeC. 4 



tooth at about the middle of their length ; the head is strongly 

 punctured above, excepting a smooth space posteriorly, the prothorax 

 is rather strongly but somewhat sparsely punctured above, and its 

 sides are somewliHt rounded ; the elytra have each about 5 or 6 

 striae, but not more than 4 on each are apparent to the naked eye, 

 and even these are not very distinct ; the whole surface of the elytra 

 is closely enough punctured. 



Leptatjlax, sp. 



This is probably a local variety of L. timoriensis, Perch. It 

 differs from that species only, so far as I can find, in the almost 

 entire absence of punctures from the sides of the pronotum. The 

 punctures are restricted to two or three close to the anterior margin, 

 and to a single or double row of small punctures along the lateral 

 margin. The single shallow, rounded depression on each side to- 

 wards the posterior angle bears in some specimens two or three 

 punctures, in others it is quite plain. The iabrum and the surface of 

 the head present the same characters as in L. timorievsis ; the middle 

 tooth on the margin of the clypeus is a little less distinct, otherwise 

 the margin of the clypeus is similarly toothed. 



Ceresium nigrum, n. sp. 



Nigrum, sulnitiJum, antennis, 2ia1pis pediljusque ferrugineo-tes- 

 taceis ; prothorace in me'lin disci et lateribiis sparse punctatis, 

 his fidvo-maculatis ; scutello fulvo ; elytris punctatis, punctis 

 evanescentibus versus medium. 

 Long. 11—16 millini. 



Black and shiny, with scattered pale grey hairs on the middle 

 of the thorax above and on the elytra. The underside of the body 

 and the legs with a faint greyish pubescence not thick enough to 

 conceal the colour of the derm beneath. Tlie fulvous spots form an 

 irregular vitta on each side of the prothorax, similar in pattern to 

 that on C. simplex, Gyllh. A feeble tubercle is to be found on each 

 side close to the anterior margin of the thorax. The punctures on 

 the basal half of the elytra are somewhat seriately arranged and are 

 not very close. The last character essentially distinguishes the 

 species from simplex, with which otherwise it seems to be closely 

 allied. The colour of the derm is also very distinct. 



MONOHAMMUS NATIVITATIS, n. Sp. 



M. mixto, Hope, similis, sed differt apicibus elytrorum sinuato- 

 truncatis 7iec spinosis. 



Long. 21 millim. 



The single male example of this species closely resembles small 

 males of M. mixtus ; but differs in the absence of spines or teeth 

 from the apices of the elytra, in the presence of some scattered 

 punctures on the middle basal part of the front oft he head, and in 

 the proportionately somewhat slenderer third, fourth, and fifth 

 antennal joints. As in M. mixtus, the cicatrice of the scape has an 

 almost oomplete bordering rim, the front of the head is rather narrow. 



