TRANSACTIONS. BLISTER BEETLE BRED IN SUFFOLK. BY E. W. PLATTEN, F.R.H.S.
A polished orange larva of a form that was stränge to me turned up among grass-roots in a gravel-pit at Dramsden on 22 May last, while I was vainly trying to secure an Aculeate that rambled among the herbage. It was placed in a circular, 2j-inches diameter tin box, f-inch deep with a glass top, onethird filled with earth from beside the tuft and above the gravel. Thence it became neglected until 7 July, when I saw that a Beetle had emerged and was still alive, though moribund ; and it soon died. The whole was handed to Mr. Claude Morley, who teils me that the imago is an il-developed female of the Blister Beetle or Spanish Fly, Cantharis (Lytta) vesicatoria, L., restricted in Britain, where it has never been bred before, to Roscommon, south of the Thames, and East Anglia as far north as Norwich (Tr. Norf. Soc. 1893, p. 484) and west as the Gogmagog Hills of Cambs. It is usually rare and taken singly, but occasionally occurs gregariously in great numbers as at Ipswich and elsewhere in Suffolk during summer 1837 and in Newmarket during both 1901 and 1905 ; singly it was found at Tuddenham and Culford Heath in 1866, near Newmarket in June 1899, and in June at Bentley Woods by our late Treasurer Doughty in both 1923 and 1928. The present female's elytra are malformed and abbreviated, by the pupa being kept too dry for over a month ; they lend it much the appearance of the allied Sitaris. With it, among the mould in the tin, were found the larva's white skin with only the triangular, parrot-beak-like and apically bidentate mandibles darker ; and the totally testaceous pupa, unfortunately too comminuted into eleven portions to describe, but its oblong abdomen is entire below and shows seven plainly discreted ventral segments, with apex strongly obtuse. MÜns. J. Lichenstein in southern France found that the larva (cf. CR. Soc. Ent. Belg., 2 Oct. 1875), which he says much resembles a small Melolonthid, turns from yellow or whitf in accordance with the colour of its food to chestnut (EMM. xiv, 117) only immediately before assuming its pseudonymph