BRACIIINID^E. DEMETRIAS. 15 



Genus V. — Demetrias, Bonelli. 



P«^2 with the terminal joint ovate, slightly truncate: lahrum slightly emar- 

 ginate : labial palpi with the basal joint minute, second and third short, of 

 equal length, fourth elongate-ovate: mentum obscurely toothed: lahrum 

 quadrate, sUghtly emarginate : mandibles dentate at the base : tarsi with the 

 fourth joint bifid. Antenna; with the first and terminal joints longest, the 

 second shortest, the remainder nearly equal in length : head ovate, narrowed 

 posteriorly: thorax obcordate, not wider than the head: body elongate, 

 depressed. 



Sp. 1. atricapillus. Pallide flavus, capite pectoreque nigro-piceis, 



elytris immaculatis. (Long. c. 2\ lin.) 

 Carabus atricapillus. Linne. — De. atricapillus. StepJi. Catal. -No. 10. 



Above pale yellowish: the head black: thorax reddish, a trifle narrowed 

 behind: elytra obsoletely striated, the interstices punctate. Beneath pale, 

 with the breast and abdomen at the base pitchy-black. The suture is some- 

 times dusky. 



Found at the roots of grass in damp hedges; common in the 

 neighbourhood of London during the spring and summer months, 

 and beneath the bark of trees, and under moss, in the winter. 



Sp. 2. monostigma. Pallide flavus^ capite elytrorumque puncto 



communi apicis nigris. (Long. c. 2 lin.) 

 De. monostigma. Leach, MSS. — Curtis, iii. pi. 119. — Steph. Catal. 



No. 11. 



Above pale-yellov/ish : the head glossy-black : thorax reddish, with an obsolete 

 dorsal hne : elytra obsoletely striated, with four impressed dots, and a deep 

 fuscous spot towards their tips, reaching half-way up the suture. Beneath 

 ochraceous. 



This species frequents hedges in sandy maritime situations, but 

 is not found near London, where the last described insect abounds. 

 It has been repeatedly captured near South Creak, Norfolk, by the 

 Rev. T. Skrimshire, from whom, and Dr. Leach (who procured 

 them from Swansea), I have received several specimens. Gyllenhal 

 (vol. ii. p. 188.) considers this insect to be merely a variety oi De. 

 at7-icapillus ; but I cannot accede to that opinion, as, among the 

 numerous specimens of this genus captured near London, which I 

 have had an opportunity of examining, not one of De. monostigma 

 has occurred; whereas, on the contrary, the latter occurs in plenty 

 on the Norfolk coast. It has also been taken abundantly at Whit- 

 tlesea-Mere, by Messrs. Dale, Chant, and Bentley, by searching 

 at the roots of the low herbage : and near Aberistwith, in Car- 

 diganshire, by the Rev. F. W. Hope. 



