56 MADEIRAN COLEOPTERA. 
between that projection and the central denticle,—as well as by the 
coarseness of the griseous pubescence with which it is clothed, and 
which has a tendency on the elytra to be arranged in longitudinal 
rows) is probably an introduced insect into Madeira, occurring prin- 
cipally in the houses and granaries around Funchal. The Madeiran 
specimens, however, are generally of a paler, or more ferruginous, 
hue than the ordinary ones of more northern latitudes ; nevertheless 
they are usually of a slightly duller, or browner, tint than either the 
C. dentatus or affinis. 
162. Cryptophagus dentatus*. 
C. parallelo-oblongus subcylindricus ferrugineus pube breviore sub- 
depressa parcius vestitus, prothorace basin versus leviter angustato 
subrecto, angulis posticis acutiusculis, ad latera bidentato, dente 
posteriore mox ante medium sito. 
Variat colore pallido-testaceo. 
Long. corp. lin. 3-11, 
Kateretes dentatus, Hbst, ane v. 15. tab. 45. f. 6 (1793). 
Cryptophagus dentatus et pallidus, Sturm, Deutsch. Fna, xvi. 67. 69. 
tab. 313, ff. B.C. (1845). 
——,, Erich., Nat. der Ins. Deutsch. iii, 364 (1848). 
—— ——,, Redt., Fna Austr, 193 (1849). 
C. parallel-oblong and somewhat cylindric (being rather more 
straightened in its outline than the last species), ferruginous 
(occasionally, especially when immature, pale testaceous), and 
rather sparingly clothed with a short, fine, subdepressed pubes- 
cence, ead and prothoraxw deeply and closely punctured: the 
latter almost as in the C. cellaris, except that the front tooth (or 
plait) is not quite so much developed or porrected, and that the 
space (or excavation) between it and the central denticle (which is 
somewhat larger in the C. dentatus, and more recurved, or hook- 
shaped) is shorter,—a structure which causes the latter, in the 
present insect, to be situated rather before the middle. LHlytra 
with their sides a little more parallel than in the last species, 
being a trifle more rectangular about the shoulders. Legs con- 
colorous with the rest of the surface: antenne a shade darker. 

In the Insecta Maderensia I had overlooked the present Crypto- 
phagus, having mixed up my specimens of it with those of the fol- 
lowing one; and it was not until its characters were clearly pointed 
out to me by Mr. Waterhouse, that I became convinced that it was 
distinct from that insect. When once perceived, however, its dia- 
gnostic features (as enunciated above) are exceedingly well marked ; 
and there is no fear of confounding it, although variable in size and 
hue, with either of its allies,—the C. cellaris and affinis. It has 
also more right, I think, to be regarded as indigenous in Madeira (or, 
