102 BRITISH BEETLES. 



linear narrow species (with ten joints to the antennae), 

 very rare in England, is found on the Continent, under 

 bark, with Hylesinus varius and vittatus-, which, with 

 their larvae, it appears to destroy. Trogosita maurita- 

 nica, a flat, black insect, has evidently been imported in 

 merchandise ; and Thymalus limbatus, almost a Casslda 

 in shape, found under bark in the New Forest, has a 

 horny hook at the apex of its maxillae, and all its tibiae 

 armed at the tip with very small simple spines. 



The COLYDIID^E are composed of a somewhat hete- 

 rogeneous alliance of species, with the parts of the 

 mouth but little developed : their antennae have either 

 ten or eleven joints, and are not elbowed, being either 

 clavate or knobbed; the front and middle coxae are 

 globose, and the hinder transverse and semicylindric ; 

 the tarsi four-jointed and simple, and the abdomen com- 

 posed of five segments, of which only the last, or the 

 last two, are free. They principally affect wood, but 

 also occur in vegetable refuse, ants' nests, and sandy 

 places. Cicones variegatus (Plate VI, Fig. 6) is found 

 under bark of beech, but is very rare : it has been taken 

 at Bromley, Mickleham, and elsewhere. Sarrotrium has 

 strong spindle-shaped antennae; Colydium, found in 

 burrows of Platypus in the New Forest, is very elongate ; 

 Anommatus is eyeless ; Cerylon very much resembles a 

 small Hister, and has the penultimate point of the palpi 

 large, and the apical point needle-pointed ; and Mono- 

 toma, of which the species are mostly gregarious, and 

 especially abound at the wet bottoms of haystacks, can 

 scarcely be said to be certainly located in its correct 

 position; authors differing as to the number of joints in 

 its tarsi. Its antennae, also, which are usually consi- 

 dered to be ten-jointed, have only the last joint clubbed ; 



