A HISTORY OF SURREY CECIDOMYIDJE (continued) Nov. 25, 1900; imagines emerged Dec. 15, 1900; F. W. T.* Cecidomyia veronicae, Vallot. Dorking ; bred from galls on Veronica chamse- drys, June 2, 1898 ; F. Milton * MYCETOPHILID.S: Sciara thomae, Linn. Woking, Aug. 15, 1891 ; A. B.* Mycetophila punctata, Mg. Denmark Hill, Oct. 5, 1866; G. H. V.* Platyura cincta, Winn. June I, 1892; G. H. V. Ent. Mo. Mag. ser. 2, vol. v. (1894), p. 79 Macrocera stigma, Curt. Coombe Wood, Oct. 5, 1866 ; G. H. V.* phalerata, Mg. Coombe Wood, June ; C. BlBIONID-ffi Scatopse notata, Linn. Merton Park (out of rotten bones), April 15, 1900 ; F. W. T.* Denmark Hill, June 8, 1869; G. H. V.* Mickleham, June 21, 1890 ; T. R. B. Ent. vol. xxiii. (1890), p. 256 flavicollis, Mg. Oxshott, Sept. 28, 1892; A. B.* subnitens, Verr. Denmark Hill, May ii, 1868 ; G. H. V. Ent. Mo. Mag. vol. xxii. (1886), p. 180 Dilophus febrilis, Linn. Oxshott, April 8, 1894; Y* Bibio marci, Linn. Oxshott, June 9, 1895; Y., O. G.* Mickleham, June 21, 1890 ; T. R. B. loc. cit. hortulanus, Linn. Firginia Water, April 1 8, 1894 ; F. A. Baker.* Merton Abbey, June 9, 1901 ; F. W. T.* anglicus, Verr. Denmark Hill. ' Occurring in a garden here (Denmark Hill) by hundreds on leaves of shrubs, principally currant bushes.' G. H. V. Ent. Mo. Mag. vol. v. (1869), p. 270 ; May 5 and 14, 1870; G. H. V.* reticulatus, Lw. Oxshott, May 20, 1900 ; Y.* laniger, Mg. Shirley, July 5, 1872; G. H. V.* Oxshott, April 8, 1894 ; Y.* johannis, Linn. Esher, April 8, 1894; Sir G. F. Hampson, Bt.* Mickle- ham, June 21, 1890; T. R. B. loc. cit. clavipes, Mg. Box Hill, Oct. 10, 1891 ; A. B.* SIMULID.S Simulium reptans, Linn. Mickleham, June 21, 1890 ; T. R. B. loc. cit. CHIRONOMID.S Camptocladius aterrimus, Mg. Merton Abbey, Dec. 9, 1900 ; F. W. T.* Metriocnemus fuscipes, Mg. Merton Abbey, May 15, 1900; F. W. T.* Tanypus varius, Fabr. Wandsworth, Aug. 1 6, 1900; F. W. T.* nebulosus, Mg. Coombe Wood, be- ginning of May ; C. PsYCHODIDjE Pericoma decipiens, Eaton. Denmark Hill, June i, 1868 ; G. H. V., A. E. Eaton, Ent. Mo. Mag. ser. 2, vol. vii. (1896), p. 210 Corethra plumicornis, Fabr. Wimbledon, May 13, 1900 ; F. W. T.* Anopheles nigripes, Staeg. Merton, May 27, 1900, F. W. T.* ; June 6, 1899, F. W. T.* Culex pipiens, Linn. Merton, Sept. 9, 1900; F. W. T.* nemorosus, Mg. Coombe Wood, May ; C. Cobham ; C. ornatus, Mg. Merton Park, June 18, 1900 ; F. W. T.* can tans, Mg. Oxshott, June 9, 1895 ; Y., O. G.* dorsalis, Mg. 1 Camberwell, Sept. 1899 ; Dr. Simpson * PTYCHOPTERID./E Ptychoptera contaminata, Linn. Oxshott, June 1 6, 1895; O. G.* albimana, Fabr. Dulwich, May 15, 1871 ; G. H. V.* LlMNOBID^E Dicranomyia chorea, Mg. Putney, July 10, 1901 ; F. Low * Erioptera flavescens, Mg. Oxshott, June 9, 1895 ; Y., O. G.* Limnophila ochracea, Mg. Merton Abbey, larvae found in rotten wood about the middle of March, 1901; pupated about the middle of April, and the perfect insects emerged about the end of the same month ; F. W. T.* Wimbledon, larva found May 17, 1 Said at the time to be very abundant and troublesome, its bites causing inflammation, swell- ing and abscesses. At the same period this species was also attracting attention in other London suburbs, such as Lewisham and Stamford Hill. At Aldeburgh in Suffolk, where the insect is abundant and sometimes makes itself very objec- tionable, it is known as the ' Norway mosquito,' and is said to have been introduced from Norway by a yacht. It is however doubtless indigenous to this country. Cf. A. Piffard and E. E. Austen, Ent. Mo. Mag. ser. z, vol. vi. (1895), pp. 227- 229. 152