166 CARABIDJE. TRECHUS. 



bescentibus, macula communi postica fusca ; antennis 

 pedibusque testaceis. 



Carabus discus, Fab. S. El. 1. 207. Dufts. Faun. 2. 171. 

 Trechus discus, Sturm, D. F. 6. 80. Dej. Spec. 5. 4 ; Icon. 4. 

 287. pi. 203. Erichson, Kafer, 1 20. Heer, Faun. Helv. 119. 

 Blemus discus, Steph. Manual, p. 50. 

 B. unifasciatus, Steph. Mand. 1. 172. 



Oblong, testaceous red, subpubescent. Head with a deep 

 oblong impression on each side, eyes black and prominent. 

 Thorax cordate, much narrowed behind, posterior angles acute, 

 disk with a deep dorsal furrow and a transverse impression and 

 two fovese at the base. Elytra oblong, rounded at the shoulders, 

 finely punctate-striated, with two impressions on the third stria, 

 interstices obsoletely punctulated and pubescent, disk with a 

 common fuscous or blue-black patch behind the middle; legs 

 paler testaceous. Length 2^ lines. 



Frequents humid places in Norfolk, Suffolk, Cambridgeshire 

 and midland counties, and in the London district. Meadows by 

 the Trent near Newark ; Vale of Towey ; islands of the Ouse in 

 Bedfordshire, &c. 



2. T. micros : elongatus, testaceus ; thorace subcordato, angulis 

 posticis rectis ; elytris subparallelis, subtiliter punctato- 

 striatis, interstitiis subtilissime punctulatis, pubescentibus ; 

 antennis pedibusque testaceis. 



Carabus micros, Herbst, Archiv, 142. 60. 



Trechus micros, Sturm, D. F. 6. 82. Dej. Spec. 5. 5 ; Icou. 4. 

 289. pi. 203. Erichson, Kafer, 120. Heer, Faun. Helv. 119. 

 Blemus micros, Curtis, Ent. pi. 310. Steph. Manual, p. 50. 

 Carabus rubens, Dufts. Faun. 2. 112. 

 Blemus rubens, Steph. Mand. 1. 172. 



Narrower and more elongate than the preceding species and 

 of a duller testaceous colour. Head dusky, rather depressed, 

 with a fovea on each side, palpi and antennae testaceous red. 

 Thorax subcordate, rounded at the anterior angles and rather 

 dilated, obliquely narrowed behind, posterior angles right angles, 

 base with two fovea?. Elytra oblong, somewhat parallel, faintly 

 striated, pubescent, with two impressions, one before and the 

 other behind the middle, interstices very minutely and densely 

 punctulated, each elytron with a dusky cloud towards the apex ; 

 legs testaceous. Length 2 lines. 



Local. " Lambeth, Chelsea and Hackney marshes ; Windsor ; 

 Thruxton, Hants ; Carlisle ; the Vale of Towey in South Wales ; 

 banks of the Trent, near Newark ; " Berwickshire ; " Falkirk, 

 Paisley, Mull, Glasgow." Murray's Catalogue. 



