92 CLAvicoRNiA. [^Bytliinus. 



Male with tlic first joint of the antenna2 cyhndrical, simple, second 

 joint strongly dilated, broader than long, securiform, with the internal 

 apical angle acute and produced ; female with the first joint one and a 

 half times as long as broad, second joint not narrower than first, sub- 

 quadrate, 



III moss, dead leaves, &c. ; rare; Horsell, near Wokiiifr (Power) ; Bvomley, Kent 

 (E. Sauuders) ; Hastiiig-s ; Glauvilles Woottou ; Isle of Wight ; Barmouth; ISuddou 

 Wood, Leicestershire ; Ilepton ; Scarboi-ougli ; Nortliuuiberlaad district, Raveiisvvortli, 

 aud near Gilsland ; Scotland, rare, Solway and Tay districts. 



S. Siirrellii, Denny (limiger, Aube). Very like the preceding but 

 of a pitchy-black or black colour, with the thorax less dilated before 

 middle and more obsoletely punctured ; the palpi much resemble those of 

 the preceding species, but have the last joint a little more rounded at 

 apex ; the species may, however, be at once recognized by the characters 

 of the antenna3 in the male, the second joint being distinctly longer than 

 broad, and crescent-shaped, with the concave portion of the crescent 

 facing inwards, and both the interior angles acute ; in the female the 

 first joint is scarcely longer than the second, subcylindrical, and some- 

 Avhat globose. L. 1-^- l^ mm. 



lu moss, dead leaves, &c. ; rare ; Faversham, Mickleham, Caterham, Esher, High- 

 gate, Amberley, Birch Wood, Cowley, Bromley, Croydon ; Norfolk ; Ilepton ; Ripon ; 

 Hartlepool; Scotland, rare, Solvvay and Clyde districts; Denny (1 c. p. 23) records 

 that the species was first discovered in the latter part of April, 1824, near Lethering- 

 Bett, in Norfolk, hy the Rev. J. Burrell, after whom he named it; from the localities 

 above mentioned it is evident that the insect is widely distributed, and this is prol^ably 

 the case with a very large number of our minuter Coleoptera which at present are 

 recorded from only one or two localities ; when a species has occurred in the South of 

 England, the Midland districts, and in Scotland, a fair inference may be drawn as to 

 its occurrence iu intermediate localities. 



BATH IS US, Aub(?. 



This genus contains at present about a hundred species, which are 

 widely distrilmted over the world ; they differ from Bnjaxis and its 

 allies in the fact that the tarsi are furnished with two unequal claws, and 

 they have, therefore, been separated otf with certain allied genera by 

 some authors as a separate tribe Batrisina ; they are among the most 

 elegant of the Pselaphidte, and most of them are brightly coloured ; they 

 seem, in great part at least, to be found in company with ants ; there is 

 only one British species, which is usually considered very rare, but 

 sometimes occurs in considerable numbers iu certain localities. 



B. venustus,- Reich. (^ice?Y5, Mills.). Eather elongate, light chest- 

 nut-brown or reddish, with the abdomen pitchy, convex ; head rather 

 large as broad as thorax with two deep furrows, rugosely punctured ; 

 antennse rather long, last joint large terminating in a point ; palpi with 

 the last joint elongate, somewhat fusiform ; thorax scarcely longer 

 than broad, broadest before middle, with lateral furrows which appear to 



