22G MAXDIBULATA. COLEOl'TEUA. 



Sp. 37. erythropterus. Niger, nitidus, antcnnis, pedlhus, ahdomine seg- 

 mentarum marginibus anoque riifo-piceis, eh/tris riijis hasi inj'uscatis. 

 (Long. Corp. 5 lin.) 



Qu. erythropterus. Steph. C'aial. 279. No. 29.54. 



Black, shining, glabrous; head smooth, witli three large punctures behind the 

 eyes, and two fovea? between them in front : thorax glossy, smooth, with 

 two faint impressions on each side of the disc, and one on the lateral margin : 

 elijtra nearly glabrous, rufuus, with the base indeterminately dusly: abdomen 

 with the margins of the segments and the extreme one entirely pitchy-red : 

 legs and antennae the same, the latter a little dusky towards the apex. 



The antenna are sometimes nearly black, the base of the elytra cloudless, and 

 the penultimate joint of the abdomen half red. 



Taken within the metropolitan district ; but not commonly. 



Genus DX. — Philonthus, Leach. 



AntenncB fiYxhrm., the basal joint elongate, rather stout, second and third longer 

 and more slender than the rest, subclavate, the remainder abbreviated^ sub- 

 nodose, with the terminal one largest, obliquely excavated at the apex. 

 Falpi short, maxillary with the terminal joint longer and rather more slender 

 than the preceding : mandibles with a strong tooth in the middle of its inner 

 edge, the two dissimilar : head somewhat globose-depressed, or orbiculate, 

 punctured behind the eyes, and one on each side before them : thorax 

 quadrate, with the lateral margins dilated and deflexed in front : body sub- 

 linear : legs moderate ; tibicB slightly setose externally, downy interiorly : 

 anterior tarsi moderately dilated. 



The genus Philonthus may be recognised from Quedius by the 

 comparatively slight dilatation of the anterior tarsi, the terminal 

 joint of which is elongate: from Bisnius it may be known by the 

 truncate apical joint of the palpi, and from Raphirus by the small- 

 ness of the eyes. The species chiefly frequent dung ; but some few 

 are found also in fungi, beneath moss, in decayed trees, &c. 



A. Thorax with its disc impunctate. - 



a. With the sides of the thorax rounded. 



Sp. 1. laminatus. Nigro-oeneus, nitidus, abdomine pedibusque nigris, elytris 

 viridi-cBueis, capite thoraceque Icevissimis. (Long. corp. 4§ — 5 lin.) 



St. laminatus. Creutzer.—Vh.. laminatus. Steph. Catal. 279. No. 2956. 



Black-brass, shining : head rather narrower than the thorax, very smooth, and 

 slightly pilose: thorax similar, but less pilose: elytra greenish-brass, 

 thickly and finely punctate: abdomen black, with the ante-penultimate 



