16 HETEROMERA. [ Alphitophaqus. 
ALPHITOPHAGUS, Stephens. (Phyletus, Redtenbacher.) 
Three species are mentioned in the Munich catalogue as belonging to 
this genus ; they are distinguished from the preceding genera belonging 
to the tribe by having the upper surface finely, but plainly, pubescent ; 
they are small oval and convex insects, with the last six joints of the 
antenne thickened ; the thorax is slightly emarginate at apex; the legs 
are slender, and the first joint of the posterior tarsi is elongate ; one 
species only occurs in Europe, and the other two in North America and 
Ceylon respectively. 
The larva and pupa of A. quadripustulatus are described and figured by Schiddte 
(l.c. pp. 555, 586, pl. ix. figs. 17, 25) ; the larva is very long and linear, twelve 
times longer than broad, of a pale ferruginous colour above and pale beneath; the 
antenne have the second joint much broader than the penultimate; the head is as 
broad as the prothorax, which is nearly as long as the two succeeding segments 
together; the anal segment is conical, and terminated by two very minute processes ; 
the segments are furnished on each side with long and fine sete ; the legs are short ; 
the pupa is comparatively broad without sets, except at sides and on the cephalic 
region; the insect in all its stages is found in meal, fragments of bread, &c., and has 
probably been imported into our country by commerce. 
A. quadripustulatus, Steph. (populi, Redt.; pictus, Mén.), A 
small, subovate species, not very convex, moderately shining, very 
finely pubescent, of a rufo-ferruginous colour, with the suture of the 
elytra and two fascie black, one about middle, and one behind, some- 
what variable in extent; head and thorax very finely punctured, the 
latter not strongly transverse, slightly emarginate in front, with the 
posterior angles right angles ; elytra with distinct punctured striz, inter- 
stices finely but distinctly punctured; antenne and legs rufo-testaceous ; 
the thorax is sometimes more or less pitchy. L. 23-3 mm. 
Tn old flour, &c.; a cosmopolitan species; not common in Britain, but occasionally 
found in some numbers; London; Birdbrook and Maldon, Essex; Cambridge; it 
probably occurs, however, in many other localities, as it has been evidently imported 
on one or two occasions when it has been found. 
TENEBRIONINA. 
Ten European genera belong to this tribe, of which one only is found 
in Britain, from which, as being the most representative genus of the 
group, the whole family derives its name; the body is oblong and 
parallel-sided and rather depressed, the head prolonged and _ scarcely 
narrowed behind, and the front dilated at the sides and covering the 
base of the mandibles; the clypeus is truncate or very slightly and 
feebly emarginate ; the eyes are free, not reaching the margin of thorax, 
and are transverse, emarginate and moderately finely granulated; the 
scutellum is transverse and truncate at apex; the elytra are entire, and 
the epipleure are narrow ; the anterior cox are rounded, and the middle 
cox are furnished with a distinct trochantin; the legs are long with 
