THE HYMENOPTERA OF SÜFFOLK.
erythropus, Th.—Doubtless infrequent: Dodnash Woods once in September. S. maculipes, Tsh.—Brandon; and during August at Monks Soham. S. annulata, Gr.—Not uncommor throughout the County. S. Sonata, Gr.—Assington Thicks, bred from H. leucophearia 1921 (Harwood). Cymodusa cruentata, Gr.—Not very common about Ipswich, &c. C. leucocera, Hlg.—Abundant : Barton, Mildenhall, Depden, Henham, Monks Soham, &c. C. antennata, Hlg.—Common on flowers at Bentley, Foxhall. Casinaria morionella, Hlg.—Bred from E. dodoneata at Timworth (Nurse) ; Monks Soham. C. claviventris, Hlg.—Apparently rare : Barton Mills and Rumburgh only. C. ischnogaster, Th.—Tostock (Tuck), Newmarket, Monks Soham. Limnerium albidum, Gm.—Common on flowers everywhere : Sudbury (Harwood). L. annulator, Zett.—Common : Icklingham in May (Chitty), &c. L. geniculatum, Gr.—Bred from Vanessa Atalanta at Sudbury, September 1920 (Harwood). L. rufifemur, Th.—Dunwich, and common in Monks Soham House. L. xanthosotma, Gr.—Apparently rare : once at Bentley Woods. Pyracmon montanus, Htg.—One female in Monks Soham garden on 22 July 1908. Canidiella tristis, Gr.—Both sexes captured at Tostock (Tuck). C. subcincta, Gr.—By no means uncommon during summer. C. exigua, Gr.—Abundant everywhere in June : Monks Soham, &c. C. trochanterella, Th.—Swept rarely from reeds at Southwold. C. immolator, Gr.—Very rare : a female on Monks Soham windows 23 May 1913. Nemeritis cremastoides, Hlg.—Always common at Monks Soham. N. gracilis, Gr.—Taken at Tostock in early September (Tuck). Phobocampa crassiuscula, Gr.—Common : Bentlev Woods, &c. P. bicingulata, Gr.—Common : Tuddenham (Elliott), Brandon, &c. P. obscurella, Hlg.—Apparently rather rare : once at Foxhall. Spudastica Kriechbaumeri, Bdg.—Tuddenham Fen, Barton Mills. Ecphoropsis Viennensis, Gr.—Not common : Barton Mills in August. E. fuscipes, Hlg.—Widely distributed throughout the County. Omorga mutabilis, Hlg.—Parasite of C. brumata ; abundant. O. Faunus, Hlg.—In great profusion throughout the County. O. molesta, Gr.—Apparently uncommon : Claydon bridge, &c. O. difformis, Gm.—Common : Depden, Reydon, and always on Monks Soham windows O. borealis, Zett.—In profusion throughout the County. O. cursitans, Hlg.—A fairly frequent species everywhere. O. lugnbrina, Hlg.—No rarer than the last species. O. ensator, Gr.—Constantly swept from herbage during June. O. multicincta, Gr.—Rare : once found at Claydon bridge.