COLEOPTERA. 97 
Bostricuvs. 
In 
Bosrricnus, Geo ff—APATE, SYNODENDRON, Fab.—Derruustes, Lin., 
Or Bostrichus proper, the body is more or less cylindrical, the 
head rounded, almost globular, and capable of being received into the 
thorax as far as the eyes; the thorax is more or less convex before, 
and forms a sort of hood; the two first joints of the tarsi, as well as 
the last, are elongated. 
B. capucinus ; Dermestes cupucinus, L., Oliv., Col. IV, 77, 
i, 1. Five lines in length, with red abdomen and elytra of the 
same colour. Very common in old wood in timber yards *. 
Psoa, Fab. 
The Psoze only differ from the Bostrichi in their proportionally nar- 
rower and more elongated body, with a depressed and almost square 
thorax. The maxille have but one lobe instead of two f. 
Cis, Lat.—Anosium, Fab. 
Where the body is oval, depressed, or but little elevated, the tho- 
rax transversal, rounded, and with a recurved lateral margin, slightly 
dilated in the middle of the anterior edge; the last joint of the tarsi 
is much longer than the preceding ones. The head of the males is 
frequently tubereulated or furnished with horns. 
These Insects inhabit the fungi of treest. In 
Nemosoma, Desmar.—Ivs, Oliv.—Corypium, Hellw., 
The body is long and linear; the antennz are hardly longer than the 
head; the mandibles are strong, salient, and dentated at the extre- 
mity; the anterior tibia are triangular and dentated exteriorly, and 
the tarsi slender and elongated §. 
The second genus of this division, or 
Monoroma, 
Is distinguished from the first by the solid and globuliform club—the 
tenth jomt—of the antennex. 
The body is elongated, depressed, and frequently forms a parallelo- 
biped; the anterior part of the head is narrowed, and projects some- 
what in the manner of a triangular and obtuse snout. The palpi are 
very small, and, as well as the mandibles, not salient. 
In some, the head is not separated from the thorax by a strangula- 
tion or sort of neck, and can be received into it. 
* For the other species, see Olivier, Fabricius, &c. 
++ See Fabricius and Rossi. 
t+ Lat., Gener. Crust. et Insect., III, p. 11, and Gyll., Insect. Suec., IIT, p. 377, 
and IV, p.624. I have seen but a single and badly preserved specimen of the 
Sphindus Gyllenhallii: it appeared to me that this genus differed but little from the 
present one. 
§ Lat., Gener. Crust. et Insect., III, p. 12, and I, xi, 4. 
