300 CLAVICOKNIA. \_Di:ndroji)haiJUS. 



The larva of Z). crenatus is described by Dr. Bucluiuaii White (Eut. Monthly Mag. 

 viii. 196), and the description is discussed aud criticized by M. Perris (Larves des 

 Cole'opteres, p. 60) ; it is of a pale yellowi^h-white colour, elongate, depressed, and 

 parallel, with rather long antenna (which are 4-jointed according to Perris, and 

 3-jointed according to White),* and long and slender legs which are terminated by 

 •A single claw ; ocelli live ; mandibles tridentate at apex ; prothorax quadrate, some- 

 what transverse ; last segment bearing two long cerci, anal appendage rather long 

 and narrow. L. 9-10 mm. 



This larva is very active, and is said by Dr. White to feed on the 

 inner layer of the bark of dead trees of the Scotch tir and larch ; it 

 is, however, probably carnivorous, like so many other of the larvae of the 

 Colydiidre and Cucujidae. 



"D. crenatus, Payk. Elongate, very flat, black, pitchy-black, or 

 brownish, very shining; head large, uneven, diffusely punctured, eyes 

 large and prominent ; antennte long, brownish-red, Avith the first joint 

 elongate, second shorter than third, apical joints not thickened ; thorax a 

 little longer than broad, with sides sinuate, coarsely punctured, with two 

 shallow longitudinal depressions in middle ; elytra parallel-sided, very 

 fiat, with fine striae, which are thickly and deeply punctured, each punc- 

 ture bearing a short fine hair ; legs brown-red or ferruginous, femora 

 thickened ; in the male the antennre are rather longer than in the female. 

 L. Q-7 mm. 



Under bark of firs and larches ; very local ; Scotland, Tay, Dee, and Moray 

 districts (liannoch, Braemar, Aviemore, &c.) ; the beetle appears, tow^ards evening, to 

 come out from its hiding-place ; Rye, at all events, records the capture of a specinieu 

 "coursing rapidly, towards evening, over a bare tir-log." 



BXS.ONTES, Fabricius {Hyliota, Latreille). 



About twenty species are recorded as belonging to this genus ; they 

 are widely distributed, being recorded from North and South America, 

 Java, Ceylon, the Australian region, &c. ; one only is found in Europe ; 

 it is widely distributed over the central and northern portions of tlie 

 Continent ; it is closely allied to DendropJiagus, but is easily distin- 

 guished by its dull appearance and the serrate sides of the thorax, 

 which is much shorter. 



The larva of £. planatus is described and figured by Perris (Ann. Fr., 1853, 

 p. 621, pi. 19, fig. 127) ; it so closely resembles that of Dendrophagns that it h irdly 

 needs a separate description ; it is rather smaller, and has the cerci shorter ; the 

 pupa is much narrowed behind, and has the sides of the abdominal segments fur- 

 nished with setigerous prominences ; the larva is active, and appears to be carnivorous, 

 and to prey on the larvte of Tomicus, and on Podurse, Acari, &c. 



S. planatus, L. Elongate, very much depressed, dull black, some- 

 times browiiish, thinly clothed with very short fine greyish hairs, which 



* Dr. White appears to have overlooked the basal joint, which is inconspicuous. 



