Eucntmultf.] SERRICORNU. 77 



i. Anteunat moderately distant, simply serrate in both 



sexes ; elytra without trace of striae EUCXKMIS, Ahr. 



ii. Antennae approximate, pectinate in male (in our 



species) ; elytra with stria) more or less distinct . . MlCBOBBHAGUS, Etcht. 



MELASIS, Olivier. 



This genus comprises three or four species, one of which is found in 

 Europe, and the others have been described from North and Central 

 America ; they are elongate and cylindrical, and live in wood in which 

 the larvae bore galleries, or, according to some authors, are parasitic on 

 certain wood-boring insects. 



The larva of Melasis buprettoide* is described and figured by Schiodte (Part v. 

 p. 49, plate iii.) ; it much resembles the larvae of certain of the Buprestidce, the 

 head being very small and sunk in the prothorax, which is broader and much larger 

 than the meso- and metathorax ; the antennae are very minute, and the maxilla; and 

 labium are obsolete ; the abdominal segments are all much longer than the meso- 

 and metathorax, and are all transverse with the exception of the ninth, which is 

 conical and obtuse and not furnished with cerci ; there are no scuta, except on the 

 prothorax; the spiracles are of a short ovate form, those on the prothorax being the 

 largest ; the legs are obsolete ; the larva is white, with the clypeus and mandibles 

 ferruginous. 



M. buprestoides, L. ( $ v. elateroides, 111.). Elongate, cylindrical, 

 .clothed with fine and sparing greyish pubescence, dull black, with the 

 antennae and legs fuscous or pitchy red, elytra sometimes lighter than 

 the front parts; head large, vertical, rather thickly and coarsely- 

 punctured ; antennas varying somewhat in the sexes ; thorax broadest 

 in front, very gradually narrowed to base, coarsely sculptured, posterior 

 angles projecting; elytra long, gradually narrowed to apex, rather 

 deeply striated, interstices narrow, thickly punctured and granulate; 

 legs rather stout, tibiae suddenly and strongly narrowed at base. L. 

 6-8 mm. 



Male with the antennae flabellate from the sixth joint, and the thorax 

 distinctly channelled ; female with the antennas pectinate and the 

 thorax channelled at base. 



In rotten wood of beech and other old trees ; local, but sometimes in numbers 

 where it occurs ; Chatham (Champion and J. J. Walker, in profusion); Sevenoaks; 

 Coombe Wood ; Cobham Park ; Darenth Wood ; Tonbridge ; New Forest ; Windsor 

 Forest; Halesworth, Suffolk; Bretby Wood, near Kepton (Harris); Dunham Park, 

 Manchester (Chappell). 



EUCNE1VIIS, Ahrons. 



This genus appears to contain only one species, which is widely dis- 

 tributed in Europe, but has only lately been taken in Britain; the 

 larva has been described and figured by Ferris, Bonvouloir, and Cussac, 

 but has l>ccn more accurately discussed by Dr. Sharp iuthe Transactions 

 of the Entomological Society of London, 1886, Part iii. pp. 297-802 ; 

 it is chiefly remarkable from the fact that there exist on the dorsal and 



