KEW BRITISH SPECIES, ETC., IN 1865. 61 



identical with the ordinary metropohtan exponents of dere- 

 lictuSf one of which was sent to Dr. Schaum as that species) 

 in beinoj larger and wider, with its thorax broader, not 

 straightly narrowed behind, but somewhat rounded, and 

 with the basal fovecB quite unpunctured : in fact, it much 

 more resembles a small specimen of >S. elegans than anything 

 else,— being, however, quite distinct from that species. 



Mr. AVollaston, to whom I have recently shown Mr. 

 Dawson's insect, can come to no other determination than 

 that it is not specifically identical with dorsalis; he pointed 

 out, moreover, a character in derelictus which has hitherto 

 been unnoticed, viz., the proportionate superior length of 

 its tarsi, especially of the claw joints. 



Mr. Dawson informs me that he never saw the insect sent 

 to Dr. Schaum as derelictus; and that the sender never 

 saw his (Mr. Dawson's) unique type of that species. 



4. Bembidium quadrisignatum, Dufts., Faun. Austr. 

 ii. 205, 16 {Elaphrus quadrisignatus) ; Schaum, 

 Er. Ins. Deutschl. i. 748, 4; J. du Val, Ann. de 

 la Soc. Ent. de Fr. 1852, 197; E. C. Rye, Ent. 

 Monthly Mag. vol, ii. p. 155. 

 This species, a single specimen of which was taken by 

 Mr. T. J. Bold near Newcastle, is, in its normal condition, 

 decidedly larger than B. histriatum (being in the same 

 section of the genus, viz. Tachys), flattish, oblong, shining, 

 more or less pitchy-black, with two rounded spots on each 

 elytron (below the shoulder and before the apex), the base 

 of antennae, and the legs, testaceous; — the tibias being some- 

 times pitchy in the middle. It has two longitudinal grooves 

 in front between the eyes; the thorax broader than long, 

 sub-quadrate, slightly narrowed behind, with acute hinder 

 angles, and a well-defined basal fovea on each side, extend- 



