318 CArsiNA. 



Ciineiis ; auterior margin generally dark greeu ; slightly rounded at 

 the base, aud leaving a distinct notch ; Membrane pale brownish, 

 iridescent ; Avith a darker patch extending from below the apex of 

 the cells to the anterior margin ; inner marginal nerve brown ; cell- 

 nerves green ; the outer one exteriorly margined with brown ; in the 

 large cell, about midway down, and near the outer nerve, a blackish 

 spot, sometimes wanting. Lcffs green ; thighs clothed with fine, 

 short, yellowish hairs; on the underside with long, fine, erect, 

 brownish ones ; ilhice with long, fine, somewhat spinose, brown hairs ; 

 knees of the 1st and 2ud pairs on the upper sides, and of the 

 ord pair entirely, black ; tarsi brownish ; 3rd joint and claws 

 blackish. 



Abdomen underneath greenish-yellow ; ? with 4 short, black 

 streaks on the sides, sometimes wanti]ig. 



Length, 2^— -2f lines. 



After death the insect changes much in colour ; the head, thorax, 

 scutellum, corium, except the anterior margin, more or less, and tlie 

 legs, become yellow, leaving the hinder angles of the thorax and 

 the knees black. A very abundant species, on alders, in August. 

 It has occurred at Lewisham, and other places in the London dis- 

 trict ; also at Newport and Abergavenny, South Wales. 



Genus .3. — Spiiyracepiialus.* 



1^ elongate, narrow ; ? oval, sometimes with undeveloped elytra. 



Head vertical in front, in a line with the anterior margin of the 

 eyes ; much wider across the eyes than long, and without a transverse 

 keel behind the latter ; Groivn almost flat ; Clijpeus convex ; apex 

 in a line with the base of the antennre ; antenniferous processes 

 short, nearly in a line with the underside of the eyes. Antennce as 

 long as the body ; 1st joint shorter than the pronotum, somewhat 

 stout ; 2ud stout, about 3 times as long as the 1st, thickened towards 

 the apex ; 3rd and 4th filiform ; 3rd almost as long as the 2nd ; 4t]i 

 about one third the length of the 3rd. Eijcs very large and prominent ; 

 viewed from above hemispherical, from the side oval ; Hostrum 

 reaching to the 3rd pair of coxa; ; 1st joint reaching beyond the 

 xyphus of the presternum ; 2nd, 3rd, and 4th, of almost equal 

 thickness. 



* ^(pvoii, a hammer, /cfi/iaX//, a head. 



