Atomaria.] clavicornia. 333 



A. nigrlventris, S>iQ\)h. {nana, Er.). Convex, svihcylimlrical, 

 shining, with somewhat coarse pubescence, fuscous with shoulders and 

 apex of elytra lighter, or with thorax black and elytra entirely or 

 almost entirely reddish-brown ; antenriie rather stout, ferruginous ; 

 thorax not very transverse, with sides slightly rounded, dilfusely and 

 deeply punctured, Ijase strongly margined, basal depression not bounded 

 by longitudinal folds; elytra convex, sparingly and rather strongly 

 punctured; legs ferruginous. L. \\ mm. 



In haystack and other vegetable refuse ; generally distributed throughout England ; 

 common in the London district; someivhat less common further north; Scotland, nut 

 common, Solway and Forth districts; Ireland (Haliday). 



A. umbrina, Er. (fuscicollis, Mannh. ; plicicollis, Makl.). Closely 

 allied to the preceding, but distinguished by the structure of the thorax, 

 which has the basal depression furnished with a raised longitudinal fold 

 or ridge at each side; the sides and posterior angles are also more evi- 

 dently margined ; the basal folds are sometimes very obscure, but the 

 species may apart from them be distinguished from A. nigriveidris by its 

 usually slightly larger size, and less deeply punctured surface ; legs 

 reddish-yellow. L. U nim. 



In moss, dead leaves, vegetable refuse, &c. ; occasionally found in sand-pits; not 

 uncommon in some places, but local ; Loudon district, generally distributed ; Glan- 

 villes Wootton ; Holm Bush, Brighton ; Gloucestevshire ; Market Bosworth, Leicester- 

 shire ; Cransley, Northamptonshire; Birmingham disirict ; Repton ; Mablethorpe, 

 Linco'lnshire ; Chat Moss ; Northumberland district, very rare ; Scotland, not 

 common, Solway, Tweed, Clyde, Forth, and Tay districts; Ireland, near Dublin, &c. 



A. Wollastoni, Sharp. At first sight this species bears a very 

 close resemblance to the two preceding ; it may, however, be at once 

 known from them by the very much finer and closer punctuation of the 

 thorax, and the shorter and more delicate pubescence ; in this latter 

 respect it somewhat resembles A. elongatula, but is less elongate, and 

 has the antenna? shorter and stouter ; from A. fumata it is distin- 

 guished by its finer punctuation, more delicate pubescence, and longer 

 and thinner antennae; it appears to be a good and distinct species 

 L. 1| mm. 



Very rare ; Scotland, Forth district ; found by Dr. Sharp on the banks of a small 

 loch near Edinburgh. 



A. linearis, Stei^h. Elongate, narrow and linear^ parallel-sided, 

 depressed, reddish or reddish-brown, closely and finely but distinctly 

 punctured, and clothed with very short and not very thick greyish 

 pubescence ; antennae and legs ferruginous ; thorax as long as broad, 

 quadrate, as broad as elytra, with the base finely and evenly margined ; 

 the punctuation of elytra is a little less close than that of thorax ; the 

 species may at once be known by its very narrow and parallel form, 

 in conjunction with the fine posterior margin of its quadrate thorax. 

 L. 1^ ram. 



