120 ~ ; MANDIBULATA. — COLEOPTERA. 



thorax and the edges of the elytra rufescent: the femora pitchy, with the 



tibiae and tarsi paler. 

 It varies in being of a paler or pitchy hue above ; or sometimes approaching to 



castaneous. 

 Distinguished by its superior size, and the obtuseness of its posterior outline, 



as well as by the general intensity of its colour and glossiness. 



Found near London ; in Devonshire, Glamorganshire, Norfolk, 

 and " Glanville's Wootton."— J. C. Dale, Esq. « Halifax."— Mr. 

 Gibson. 



Sp. 2. affinis. Oblongo-ovatus, postice subattenuatus, nigro nitidus, thoracis 

 elytrorumque marginibus concoloribus, femoribus nigris, tibiis tarsisque ritfes- 

 centibus. (Long. corp. ]i — if lin.) 



Li. affinis. milii. Steph. Catal. p. 58. No. 589. 



Oblong-ovate, acuminated behind ; glossy black, with the margins of the thorax 

 and of the elytra concolorous, the apex of the latter rounded : femora black, 

 tibia? and tarsi rufescent. 



The attenuated posterior outline and deep concolorous margin to the thorax 

 and elytra sufficiently distinguish this species from the foregoing. 



My specimens were captured in the metropolitan district. 



Sp. 3. truncatellus. Brevis, ovatus, postice obtusus, Icevissimus, ater, thoracis 

 elytrorumque marginibus concoloribus, pedibus piceis. (Long. corp. 1 — 1-jlin.) 

 Hy. truncatellus. Fabricius.—1A. truncatellus. Steph. Catal. p. 58. No. 590. 



Short, ovate, posteriorly obtuse, very smooth, deep black, with the lateral margins 

 of the thorax and elytra concolorous ; the legs pitchy ; the palpi slightly ru- 

 fescent. 



The inferior size and brevity of this species, exclusively of the dissimilarity in 

 form, sufficiently discriminate it from Li. affinis. 



Perhaps the most abundant species of this genus ; occurring in 

 plenty in some ponds near London, and not unfrequent in Norfolk 

 and Suffolk, judging from the number of specimens I have seen 

 from thence. " Netley."— Rev. F. W. Hope. 



Sp. 4. marginalis. Brevis, ovatus, niger, nitidus, thoracis angulis posticis elytro-* 



rumque marginibus piceo-testaceis, pedibus piceis. (Long. corp. 1 lin.) 

 Li. marginalis mihi. Steph. Catal. p. 58. No. 591. 



Short, ovate, glossy black, with the posterior angles of the thorax and the lateral 



margins of the elytra pitchy-testaceous ; the legs pitchy. 

 The apex of the elytra is sometimes slightly rufescent. 

 Smaller and somewhat more obtuse and broader than the last, from which it is 



also distinguished by the coloured margin to the thorax. 



Found near London and in Devonshire. " Netley." — Rev. F. 

 W. Hope. 



