Meg atom t.~] CLAVIOORNIA. 361 



Forest ; York ; Dunham Park, Manchester ; iiot recorded from the extreme northern 

 counties of England or from Scotland. 



TIRESIAS, Stephens (Ctesias, Steph. 111.). 



This genus contains one European species, which is distinguished from 

 Megatoma by the broader mesosternuru, the more widely separated in- 

 termediate coxae, the longer first joint of the tarsi, and the serrate club 

 of the antennae in male. 



The larva of T. serra is very peculiar ; it is figured by Westwood (Classific. p. 156, 

 fig. 14, 18) and by Chapuis et Candeze (Larves des Coleopteres, PI. iii. fig. 2) ; it is 

 ferruginous and clothed with long brown hairs, and is broad in front and narrowed behind, 

 and terminated by a long tail of hairs as \nAttagenus; the chief peculiarity lies, 

 however, in the tufts of hairs that are arranged closely on the last four segments of 

 the abdomen, which the larva has the power of raising at will ; these give the apex 

 of the body a fan-like appearance, with the long tuft of hairs at apex projecting in the 

 middle ; the larva of Megatoma appears to resemble that of Tiresias, and the larvae of 

 the Anthreni are also furnished with the same tufts of hairs at sides. 



The larva of Tiresias is found much more commonly than the perfect insect in 

 localities where the latter occurs; it lives under bark of elm, willow, oak, &c., and 

 may easily be reared. 



T. serra, F. Subovate, rather broad, moderately convex, but with the 

 elytra somewhat depressed on disc, black, shining, immature specimens 

 being pitchy-brown; head much narrower than thorax, eyes prominent, an- 

 tennae reddish ; thorax transverse, slightly reddish at sides, much narrowed 

 in front, strongly sinuate and produced in middle at base, with disc very 

 finely and diffusely punctured, the punctuation being more evident at 

 sides ; elytra closely and finely, although distinctly and somewhat 

 asperately, punctured ; legs lighter or darker reddish-testaceous with the 

 femora fuscous. L. 3f-5|- mm. 



Male with the club of antennas very large, plainly serrate, female with 

 the club smaller, not very strongly marked, cylindrical. 



Under loose dry bark of elm, oak, willow, &c. ; local and not common ; Forest 

 Hill, Putney, Ooydou, Norwood, Richmond Park, Claygate, Enfltld, Sheerness, 

 Greenwich, &c. ; New Forest; Devon; Norfolk; Evesham ; Montgomery; Ripon ; 

 Dunham Park, Manchester ; not recorded from the extreme northern counties of 

 England, or from Scotland or Ireland, but it probably occurs in the latter country. 



AKTHREKUS, Geoffroy. 



This genus contains between thirty and forty species, which are 

 very widely distributed, some being almost cosmopolitan, as they 

 are exceedingly destructive to all zoological collections, and are therefore 

 carried from one part of the world to the other in the specimens and 

 boxes ; the four North American species, for instance, are all represented 

 in Britain: the Anthreni are small round or broadly ovate insects, of a 

 dark colour, but covered with more or less variegated scales ; the head 



