362 MANDIBULATA. COLEOPTERA. 



obscurely mucronated : femora and tibiae piceous black ; tarsi and antennae 

 rufo-testaceous. 



A great pest to the elm-trees near the metropolis, many of which 

 in St. James's Park, at Chelsea, &c., have been totally destroyed by 

 the ravages of this little insect : it likewise occurs at Hertford and 

 Ripley. " Swansea."— L. W. Dillwyn, Esq. 



Sp. 2. picicolor. Nigro-piceus, elytris confertissime striatis, pedibus rufescen- 



tibus, abdomine inermi retuso. (Long corp. 14 lin.) 

 Sc. picicolor. Kirby MSS.—Steph. Catal. 146. A^o. 1477. 



Pitchy-black, shining: thorax elongate, punctulate,- elytra rufescent, closely 

 striated, the stria? obsoletely punctate : abdomen retuse, unarmed : legs and 

 antenna? rufescent. 



Thorax more coarsely punctured than in Sc. pygmacus. 



Found near London: also " taken by Mr. Wilmot in wood at 

 Wittersham near Rye." — Marsham MSS. 



Sp. 3. pygmfeus. Niger, nitidus, antennis testaceis, pedibus rufo-piceis, elytris 

 rufo-piceis, confertissime, punctato-striatis, tkorace crebiiis punctulato, abdomine 

 retuso. (Long. corp. l| — if lin.) 



Sc. pygmseus. Olivier. — Steph. Catal. 146. No. 1478. 



Black, shining, glabrous : head robust, granulated : thorax with the anterior 

 margin sometimes ferruginous; the disc rather coarsely punctulate, especially 

 towards the sides : elytra rufo-ferruginous, closely punctate-striate, the inter- 

 stices each having a series of minute punctures : abdomen retuse, mucronate 

 in the male : legs rufo-piceous : antennae testaceous. 



Much less abundant than the first species : found beneath the 

 bark of oaks throughout the metropolitan district. " Under bark 

 of elm, Copenhagen-fields."" — Mr. Ingpen. 



Genus CCLXX. — Hylurgus, Latreille. 



Antenna with the club commencing at the eighth joint; the basal joint very 

 long, bent, clavate, the second globose, third turbinate, four following trans- 

 verse, the remainder forming a subglobose-ovate club. Palpi very short, 

 terminal joint minute, subconic: mandibles acute, bidentate within: head 

 more or less produced anteriorly: eyes elongate, narrow: thorax subcylindric- 

 ovate, narrowed in front: body linear-cylindric : tibiw compressed, denticulate 

 at the apex; tarsi pentamerous, short, with the third joint cordate, bifid. 



There is evidently considerable affinity between the insects of 

 this genus and the Rhyncoli in the following family: like those 

 insects the head is rostriform, the basal joint of the antennse very 



