THE BEETLE LATHRIDIUS BIFASCIATUS REITTER IN ESSEX 175 A description of L. bifasciatus is given by Allen (1951), and it is readily distinguishable in the field. It closely resembles the common L, nodifer Westwood, but unlike other British Lathridius species, is not unicolorous. The yellowish elytra have a black pattern which typically resembles that of Fig. 2, but the markings may be weak or the elytra almost entirely black. Mr. E. Lewis is at present collecting data regarding the occurrence and spread of this species throughout Britain. I must thank him for kindly supplying information regarding the general spread of L. bifasciatus. I am grateful to Mr. W. M. Young of the Mid-Essex Technical College for the use of his laboratory facilities. References Allen, A. A. (1951). Ent. mon. Mag., 87: 114. Balfour-Browne, F. (1931). A plea for uniformity in the method of recording insect captures. Ent. mon. Mag., 67: 183. Side, K. C. (1956). Ent. mon. Mag., 92 : 130.