HORN EXPEDITION—COLEOPTERA. 
273 
The antennie are very slender and thread-like, reaching back scarcely beyond 
the base of the prothorax. Their apical five joints are together fully as long as the 
preceding six together, and are oval in form but very little thicker than the 
preceding joints. Nevertheless they resemble a feeble and very loosely-articulated 
club. The base of the prothorax shows five sinuations, the middle one slight and 
receiving the front of the scutellum, the others stronger and corresponding with 
projections of the front margin of the elytra. The faintly costate surface of the 
elytra is much as in some species of Ilelodes. The whole surface of the elytra is 
covered uniformly with fine close puncturation; the coarse punctures are obsolete 
near the sides and apex. 
Palm Creek. 
CLERID^. 
NATALIS. 
N. lofigicol/is, Blackb. (1), Adminga Creek. 
TROGODENDRON. 
T. fasdculatiim, Schreib. (1), Alice Springs. 
BOSTllYCHII)^. 
BOSTUYCIIUS. 
B.jesuiia, Fabr. (2), Alice Springs. 
TENEBRIONID^. 
HOPATRUM. 
//. torriduvi, Champ. ? (12). Although these specimens present some slight 
differences ifiter se (chiefly in size and colour, but also to some little extent in the 
sinuosity of the hind part of the pi’othoracic margin and the convexity of the 
elytral interstices), I cannot regard them as representing more than one species, 
especially since some of the specimens presenting the maximum differences were 
taken in company. It is so exceedingly close to the South Australian Hopatnnn 
mentioned by Mr. Champion (Tr.E.S., 1894, p. 3.59) as sent to him by me, and 
regarded by him as identical with his H. torridum (from North-west Australia), 
that I prefer not to treat it as a new species ; nevertheless, as it appears to be on 
.MM 
