466 Mr. F. P. Pascoe on some new Coleoptera. 
cently characterized in the ‘Journal of Entomology,’ 1. p. 342 ; 
but the descriptions of the two species mentioned above will be 
found in the ‘ Transactions of the Entomological Society,’ ser. 2. 
vol. v. pp. 42 & 59. 
Mycerinus* aridus. 
M. angustulus, rufo-testaceus, totus pube griseo-alba tectus ; anten- 
narum articulis tertiis quartisque equalibus. 
Somewhat narrow, reddish brown, everywhere covered with a 
thin greyish-white pile; head slightly canaliculate im front ; 
antenne as long as the body, ciliated beneath, the third and 
fourth joints equal; prothorax scarcely longer than broad, nar- 
rower anteriorly, with a central raised line ; scutellum transverse ; 
elytra subparallel, slightly punctured at the base, rounded at 
each apex; legs sparsely pubescent; body beneath with the pile 
somewhat coarser. Length 6 lines. 
Very like the Senegal Mycerinus dorcadioides, but narrower and 
unicolorous, although the elytra show faint traces of two stripes, 
caused, however, by a greater thinness of pubescence. 
From Aneiteum, one of the New Hebrides, Mr. Macgillivray 
has also sent a remarkable form, belonging to the family Anthri- 
bidee, which I have described below under the name of Bytho- 
protus lineatus. But for its antenne and long fore legs, it might 
be taken at the first glance for a specimen of the Macrodactylus 
flavolineatus, Guér., one of the Melolonthide and a native of 
Venezuela. In regard to the immense space which separates the 
two insects, no explanation on the “struggle-for-life” hypothesis, 
causing the one to mimic some other form more powerful or less 
subject to destruction than itself, seems applicable here. The 
specimen described is in the collection of the British Museum, 
and appears to be a male; but of this I am not quite sure. 
Fam. Anthribide. 
BytTHOPROTUS. 
Caput exsertum, subconicum, oculis rotundatis, integris. Rostrum 
subelongatum, bicarinatum, apice emarginatum. _ Antenne (in fovea 
insertz) longiusculee, compressee, articulis sulcatis, clava brevi, vix 
crassiore. Prothorax subelongatus, lateribus rotundatis, antice an- 
gustior, carina subbasali ad latera continuata. Pedes elongati, antice 
longiores, tarsorum articulo primo longissimo. Prosternum elevatum, 
postice productum. 
This remarkable genus belongs to Schénherr’s second sub- 
division of the Anthribide; but at present it would be difficult 
to say what are its precise affinities. In contour, perhaps, it 
* Hathlia (Dej.). 
