100 INSECTA. 
Tripnyitius Meg. Dey —Mycetoruacus, Gyll. 
Where the club of the antenne is shorter, abrupt, and formed by 
the three last joints only; the last one is almost globular *. 
Those who have an oblong body and the thorax narrower than the 
abdomen, at least posteriorly; the first joint of the tarsi is the length 
of the following one, or hardly longer, and the antenne are termi- 
nated by a narrow elongated club, but slightly or not at all perfoliate, 
formed by the three last joints. The 
Meryx, Lat., 
Is distinguished from the following subgenera by the maxillary 
palpi—always salient—which are terminated by a larger joint in the 
form of a reversed triangle +. 
Dasycerus, Brong. 
Although the tarsi of the Dasyceri present but three joints, they 
are connected with this family by other affinities. The two first 
joints of their antennz are globular, the following ones very small, 
capillary and pilose, and the three last also pilose and globular. 
The head is triangular and distinct from the thorax. The maxillary 
palpi are salient, small, and subulate. The thorax and the elytra are 
suleated. The abdomen is almost globular f. 
Larripivus, Herbst.—TeEnesrio, Lin—Dermestes, Fab. 
Where the palpi are very short and subulate; the head and thorax 
are narrower than the abdomen; the first joint of the antenne is very 
stout and globular, and the following ones, to the tenth inclusively, 
are almost cbconical, glabrous, or simply pubescent; the last is 
larger than the preceding ones, and ovoid. The thorax is wider than 
it is long, or almost isometrical, and the abdomen square, or almost 
oval §. 
Sinvanus, Lat. Gyll.—Derrmestes, Fab. 
Where the body is nearly linear or almost forms a parallelopiped ; 
the thorax, longer than its is broad, is as wide as the anterior part of 
the abdomen; the first joints of the antennze are nearly equal, almost 
turbiniform, and the last is nearly globular; the palpi are almost 
filiform, and the anterior extremity of the head is somewhat elon- 
gated into a sort of triangular and obtuse snout ||. 
Sometimes the mandibles are entirely exposed, salient and robust. 
The body is generally elongated, narrow, and depressed. These In- 
sects form the genus 
* See Lat. Gener. Crust et Insect., III., second division; Dej., Mycetophagi, and 
Gyllenh., Ibid., IV, 631. 
+ Lat., Gener. Crust. et Insect., III, p. 17, and I, xi. 1. 
t See Dumeril, Dict. des Sc. Nat., where this Insect is well figured and Arrh., 
Faun. Insect. Eur., IV, 5. 
§ See Lat., Ibid., and Gyllenh., Insect. Suec., I, iv. 123, 
|| See Lat. and Gyllenh., op. cit. 
