[page] 5178

Capture of a Coleopterous Genus new to the British Fauna.—Whilst on a visit, during the last week in April, to Mr. Darwin, at Down, near Bromley, I had the good fortune to meet with a solitary specimen of the Staphylinideous genus Euryusa, which has not hitherto been recorded as British. Mr. Janson is of opinion that it is referrible to the E. acuminata, described by Mäerkel in the 'Ent. Zeitung' in 1842, though it is of a somewhat paler hue (the result perhaps of immaturity) than that species as indicated in the diagnosis. Like so many of the Aleocharini, it seems to be an attendant upon ants; and it was from beneath a stone, overtopping a colony of the Formica fusca, that my example was taken. The chalky slopes in that immediate vicinity would appear to be rich in Coleoptera; for, although nominally not collecting at the time, I noticed several species which I do not often observe elsewhere: I may mention, inter alia, Coprophilus striatulus; and from beneath a single flint, resting upon a nest of the common brown ant, I captured no less than nine specimens of the Claviger foveolatus.—T. Vernon Wollaston; 10, Hereford Street, Park Lane, June, 5, 1856.