Longicornia Malayana. 323 



tured, the base marbled with white reticulated veins, posteriorly 

 a few narrow yellowish indefinite stripes ; body beneath and legs 

 pale-brownish, with a loose greyish tomentum, the epimera of the 

 metathorax densely clothed with white hairs. 

 Length 11 lines. 



HlPPOPSIN^. 



No other sub-fatnily of Longicorns presents a head so peculiar 

 in its form and direction as the more typical members of the Hip- 

 popsincB. In these it is of a conical shape, and, as a cone, porrect ; 

 the ui)per line forms the vertex and the lower the face, the apex 

 bears the antennae, which are almost or quite contiguous at the 

 base, and the eyes are most abnormally placed at some distance 

 from the insertion of the antennae. But, as usual, these pecu- 

 liarities shade off in the different genera, so that at last we are 

 led rather by general resemblance than by any definite characters 

 to decide on their affinites. 



The HippopsiiKB lie directly between the OnocephalincB and 

 Saperdince ; the former sub-family shows the same tendency to 

 the horizontal position of the head, although in a less degree, but 

 always has the eyes in the normal position, a more robust form, and 

 the pro- and meso-^terna shorter, so that the anterior and inter- 

 mediate coxae are more or less approximate, while in the Hippop- 

 sincB these conditions are reversed. The relations of the Hip- 

 popsince with the SaperdincB will be noticed further on. 



The members of this sub-family are found all over the world, 

 except Europe,* but are apparently not very numerous either as 

 to species or individuals. From Australia, indeed, we have as 

 yet only a single exponent of the group, Essisus, recently de- 

 scribed by me in Proc. Linn. Soc, Zool., ix. 90. The number 

 of species in Mr. Wallace's collection is only five, distributed into 

 three genera. 



Genei-a. 

 Eyes not divided. 



Head almost horizontal Apophrena, n. g. 



Head nearly vertical Pothyne, Thoms. 



Eyes divided Tetraglenes, Newm. 



* M. J. Thomson has, in his Systema &c. (p. 97), referred Calamohius, 

 Guerin, to Hippopsis, an error which I have already noticed in the Society's 

 Proceedings, 1865, p. 126, but which, having been adopted by M. L^on Fair- 

 maire in the " Genera des Coleopteres d'Europe," may probably lead to the 

 name Hippopsis being found in some future European catalogue. 



Y 2 



