22 MANDIBULATA. — COLEOPTERA. 



carinated, somewhat rugose and entire, or with the tip sometimes a 

 little notched, but not abbreviated as in the two preceding genera.. 

 The species are very prone to monstrosity in the form of the thorax,, 

 which is sometimes deeply cut out on its lateral and posterior 

 margins. 



A. Both sexes with the elytra entire at the apex. 



Sp. 2. thoracica. Nigra sericeo-nitens, thorace ruhro fulvo-villoso, elytris lineis 



tribus elevatisflexuosis. (Long. corp. 6±—7^ lin.) 

 Sc. thoracica. Linne.—Don. ii. pi. 63. f. 1.— Oi. thoracica. Steph. Catal. 76. 



No. 808. 



Black : head punctured, clothed with pale sericeous down : thorax rufo-testaceous, 

 with a silken golden-fulvous pubescence, finely punctured : elytra ovate, black, 

 of a satiny texture, finely punctured, with three slightly flexuous clavated lines, 

 of which the two interior are slenderest and united at the apex, the exterior one 

 more short, considerably abbreviated, and terminates in a transverse tubercle. 



Var. /J. Elytra with a rich fulvo-testaceous pubescence. 



f Var. y. Thorax with its lateral margins deeply excised. 



Far from uncommon near London, and throughout the metro- 

 politan district. " Knockholt and Bexley, Kent." — Mr. Ingpen. 

 " Bottisham, not uncommon in the spring." — Rev. L. Jenyns. 

 « Lord Abingdon's wood, in profusion." — Rev. F. W. Hope. 

 " Epping." — Mr. Doubleday. " Enborne and Bristol." — /. C. 

 Dale, Esq. " Abounds about Penllergare or Phallus foetidus, and 

 sometimes in dead birds." — L. W. Dillwyn, Esq. 



Sp. 3. rugosa. Nigra pubescens, thorace tuberculato, elytris trilineatis, trans- 



versim rugosis. (Long. corp. 3£ — 5 lin.) 

 Si. rugosa. Linne.—Oi. rugosa. Steph. Catal. 76. No. 809. 



Somewhat oblong-oval: black: head clothed with a dense griseous pubescence; 

 antennae black, with the capitulum obscure-fuscous: thorax truncate an- 

 teriorly, sinuated posteriorly, the surface clothed with a very short ashy pu- 



JSp. 1. marginalis. Aha, thoracis margine pallido, elytris fuscis. 

 Si. marginalis. Fabricius.— Curtis (!J—Oi. marginalis. Steph. Catal. 75. 

 No. 807. note. 



Head black, rugose : thorax black, with its margin sinuated and pale; elytra 

 fuscous, with three elevated lines : legs black. 



An injured specimen of this insect was obtained by Mr. Wilkin from the late 

 Mr. Tuther's cabinet ; but as it is unquestionably a native of North America, 

 it is not likely to be indigenous to Britain. — Sec Note, vol. ii. p. 68. 



