312 STAPHYLINID/E. [ScopceUS. 



close to the sea ; it appears to occur rarely in France on the banks of rivers and 

 streams. 



S. sulcicollis, Steph, {minutus, Er., pnsillus, Kies., debilis, Rey). 

 This species is easily distinguished from S. Erichsoni, which it resembles 

 in general appearance, by its subquadrate head which is somewhat 

 widened behind, much shorter antennae of which the penultimate joints 

 are feebly transverse, and more oval thorax ; the almost smooth and shin- 

 ing head and thorax and much duller and more coarsely punctured elytra 

 are, however, perhaps, the best distinctive character ; in the male the 

 sixth ventral segment of hind body is very obsoletely bisinuate on apical 

 margin, and the seventh is rather deeply and somewhat angularly emar- 

 ginate ; in the female the seventh ventral segment is produced in a 

 rounded angle. L. 2f-3 mm. 



In moss, vegetable refuse, &c. ; also on the banks of streams, under stones in fields 

 and gardens and in otlier localities; rare; Shirley (Surrey), Lee, Reigate, Daren th, 

 Mickleham, Colney Hatch, Tonbridge ; Southend; St. Peter's, Kent; Hastings; 

 Isle of Wight; Kemp Town, Brighton; Oxfordshire. 



S. cogrnatus, Rey. Very closely allied to the preceding, but with 

 the head more sparingly punctured, and the intermediate tibiae more 

 dilated ; in the male the seventh ventral segment of hind body is rather 

 broadly emarginate in a rounded angle, and the emargination is sur- 

 rounded by an impression which makes its edges appear raised. L. 

 2 1-3 mm. 



I feel rather doubtful of this species, but a specimen taken by Mr. E. 

 Saunders at Ventnor, Isle of Wight, and which he separated as distinct 

 from S. sulcicollis, has been returned to me by M. Fauvel as this insect ; 

 the specimen, unfortunately, is a female, so that the sexual characters are 

 not apparent ; the apex, however, of the seventh ventral segment is much 

 more sharply produced than in the corresponding sex of S. sulcicollis. 

 M. Fauvel also was kind enough to send me another specimen taken at 

 Wingham near Sandwich, but I cannot distinguish this from ordinary 

 specimens of S. sulcicollis. The three last species belong to the genus 

 Pohjodontiis of Solier. 



MEDON, Stephens. 



This genus, as now constituted, comprises by far the greater portion 

 of the old genus Litlwcharis ; in fact only one representative of the 

 latter genus appears to occur in Europe ; the characters separating the 

 two genera have not until recently been satisfactorily determined, but 

 Dr. Sharp in his work on the Staphylinidee of Central America (Biol.Cent. 

 Am. vol. i., part 2., p. 549) has lately pointed out that in ZtV7ioc/iam the 

 process of the prosternum above the front coxae is but slightly developed, 

 whereas in Medon the prosternum is prolonged to form a process resting 

 on the front of the mesosternum ; with regard to this Dr. Sharp makes 



