ATTEMPTED DIVISION OF BRITISH INSECTS. 417 



same substances. Imago, with short clavated antennae ; mandi- 

 bles short, strong, and toothed ; form oval ; head and legs 

 retractile, but less perfectly so than in the two preceding Orders. 

 Inhabits dead animals ; when shaken out or disturbed mimicking 

 death : flight principally nocturnal. Attagenus, Dermestes, Me- 

 gatoma. 



Natural Order. — Ipsites. 



Larva more elongate, slightly pubescent. Inhabits and feeds on 

 the bark of trees or fungi. Pupa changes in the bark. Imago, 

 with clavated antennas, the club not abrupt, but generally formed 

 by a gradual incrassation of the antennas externally ; prothorax 

 nearly square, generally longer than wide ; form elongate : flight 

 only occasional, mostly diurnal. Lyctus, Sylvanus, Rhizophagus, 

 Nemosoma, Ips, Tetratoma, Triplax, Mycetophagus, Anthero- 

 phagus. 



Natural Order. — Nitidulites. 



Larva pubescent, more active than the preceding. Generally in- 

 habits and feeds on decayed animal substances. Pupa changes 

 in the same situations or in the earth. Imago, with clavated 

 antennas, the club abrupt and well defined, usually composed of 

 three joints : active ; fly readily. Inhabits, in great quantities, 

 decayed animal substances, particularly bones, and also strongly- 

 scented flowers. Catheretes, Meligethes, Strongylus, Nitidula, 

 Thymalus. 



Natural Order. — Silphites, Carrion-beetles. 



Larva glabrous, depressed, attenuated posteriorly ; very active. In- 

 habits putrefying animal substances. Pupa changes mostly in the 

 earth. Imago, with antennae clavated, or moniliform, externally 

 incrassated ; mandibles strong, pointed, and prominent ; head 

 capable of being bent vertically, and concealed by the prothorax, 

 but not withdrawn into it ; prothorax as wide as the body. In- 

 habits putrid animal substances, as dead birds, mice, rats, &c. 

 which it buries in the earth as receptacles for its eggs ; flight 

 diurnal and nocturnal ; scent very offensive. Silpha, Necrophorus y 

 Choleva, Catops, Ptomaphagus, Scaphidium, Scaphiosoma. 



Natural Order. — Spheridiites, Globe-beetles. 



Larva inhabits and feeds on the dung of horses and cows. Pupa 

 I changes in the same situations. Imago, with antennas clavated ; 



club distinct and abrupt ; form nearly spherical or oval. Inhabits 



NO. IV. VOL. II. 3 H 



