6 MANDIBULATA. — COLEOPTEKA. 



Sp. 4. immunis. Mneo-niger, aut violaceus, elytris obsoletissime punctato- 

 striatis, immaculatis, pedibus piceo-rufis, femorum basi piceis. (Long. corp. 

 lilin.) 



Ocys immunis. — Kirby, MSS. Ta. immunis. — Steph. Catal. p. 36. No. 346. 



Glossy brassy-black or violet ; head with a rather obsolete curved impression 

 on each side, between the eyes: thorax with the disc convex, the dorsal 

 channel obsolete, and an excavated fovea on each side at the base : elytra a 

 little dilated in the middle, of a bluish or violaceous hue, the suture somewhat 

 rufescent, obsoletely punctate-striated, the lateral striae nearly obliterated, 

 the apex immaculate : the legs pitchy-red, with the base of the thighs pitchy ; 

 antennae rufescent at the base, the tip dusky. 



Also common near London, in Copenhagen and Battersea Fields, 

 &c. " Cork, Milford-Haven, and Dartmoor." — Dr. Leach. 



Sp. 5. obtusus. Piceo-niger, antennarum basi pedibusque rufescentibus, elytris 

 immaculatis punctato-striatis, interstitio tertio bipunctato. (Long. corp. l\ 

 lin.) 



Be. obtusum.— Sturm ? Ta. obtusus.— Steph. Catal. p. 36. No. 347. 



Allied to the last: deep pitchy-black: head with a deep impression on each 

 side : thorax broad, convex, with a slight dorsal line ; the basepunctulate, with 

 an impressed line on each side: elytra punctate-striated, with two or three 

 impressed dots between the second and third striae from the suture: legs 

 pitchy-red : antennae fuscous, with the base pitchy. 



Far from uncommon in the neigbourhood of London. " Netley, 

 Salop." — Rev. F. W. Hope. " Banks of ponds, Copenhagen-fields." 

 Mr. Ingpen. 



Sp. 6. pusillus. Piceo-ceneus aut virescens, thorace postice utrinque foveold 

 punctata, elytris tenue punctato-striatis, apice piceis. (Long. corp. l^lin.) 



Ta. pusillus. Be Jean.— Steph. Catal. p. 36. No. 348. 



Pitchy-brass or greenish, shining : head with a small impression on each side 

 between the eyes : thorax convex, with a faint dorsal line, and a punctate 

 impression on each side at the base : elytra rather faintly punctate-striated, 

 the exterior striae nearly obliterated, the tip piceous : legs pitchy-red : antennae 

 fuscous, with the basal joint rufescent. 



Frequently taken near London. " Netley, Salop." — Rev. F. W. 

 Hope. " Banks of ponds, Copenhagen-fields." — Mr. Ingpen. 



Sp. 7. gracilis. Attenuatus, piceo-niger, elytris tenue punctato-striatis, inter- 

 stitiis impunctatis : thorace postice utrinque foveold simplici. (Long. corp. 

 lilin.) 



Ta. gracilis mihi. — Steph. Catal. p. 36. No. 349. 



Longer and more attenuated than the last ; head with a slight impression on 



