50 



Its colour so resembles the tenacious clay among which it is found that it 

 is with difficulty recognised. It is, I believe, confined to the sea coast. 



TACHYS. 



Upper side reddish yellow ; thorax with sharp posterior angles. Elytra 

 with four distinct striae. Length 1\ lines - - - T. FocJci. 



Upper side pitchy ; thorax without sharp posterior angles. Elytra with 

 two distinct striae. Length | of a line - - - T. hidriatns. 



Head and thorax pitchy ; elytra light yellow, with a dark spot at the scu- 

 tellum, and another on the suture near the apex ; thorax without sharp pos- 

 terior angles - - - . - - T. scutellaris. 



T. FocJci is scarce ; the other species are rather local. I have never met 

 with any of the species. 



TACHYPUS. 



T. pallipes. Eyes only slightly prominent ; general colour coppery or 

 greenish ; first joint of the antennae greenish. Length 2| lines. 



T. flavipes. Eyes very prominent, extending beyond the sides of the 

 thorax ; colour as T. pallipes ; first joint of antennae yellow. Length 

 2 lines. 



Both species are fairly distributed in damp places, although the smaller 

 species T. flavipes, is perhaps the one which occurs the most abundantly. 



BEMBIDIUM. 



The insects comprised in this genus are very numerous, and many of the 

 species are so nearly allied, that their identification is frequently a matter of 

 difficulty. The British species included by recent authors in the genus 

 Bembidium vary very much among themselves, and were distributed by 

 former students of Coleoptera in several genera, viz. : Philocthus, Ocys, 

 Perypltus, JSotaphis, Lopha, and Tachypus, while the genus Bembidium was 

 restricted to B. paludosum and the two species now included in Tachypus. 

 This last named species, B, paludosum, is markedly separated from all the 

 other members of the genus by its very prominent eyes, and its general 

 resemblance to a large Tachypus, or a small Elaphrus ; its colour is coppery 

 or greenish bronze, and it measures about 2| lines in length, being one of 

 the largest members of the genus. It does not seem to be anywhere very 

 common, and is generally among the desiderata of collectors. Omitting this 

 species from further consideration we may divide the remaining members 

 of the genus into two principal groups, according to the shape of the 

 thorax. 



