INSECTS while there are other species, of which no male has ever been detected, though perhaps the females abound. Thus we have more or less perfect parthenogenesis. Yet here again there is a difference ; the offspring of some of these parthenogenetic females are almost all males, while in others, such as those in which no male is known, the offspring are all or nearly all females. No one in Sussex has, I think, systematically collected the Tenthre- dinidas, but through the occasional collecting by Messrs. E. A. Butler, E. W. Andrews, W. Bennett, etc., I am able to give a very fair list of the species of the Hastings district. Those from the neighbourhood of Lewes are on the authority of Mr. J. H. A. Jenner, while for the west of the county I have a short list of species met with by Miss Ethel Chawner at Storrington and another from Mr. Guermonprez of Bognor. Of those met with by him in that district almost all have been deter- mined or confirmed by the Rev. F. Morice, who has also helped in many ways. I have employed as far as possible the nomenclature of Konow, but as this seems in a very unsettled state I have generally given as synonyms the names under which these insects are described in Cameron's British Phytophagous Hymenoptera. Lydini Neurotoma flaviventris, Retz. Near Mid- hunt, 30 May, 1895 Pamphilius sylvaticus, L. GuestUng, 21 May, 1889 — hortorum, Klug. Guestling, 23 May, 1889 ; Hastings ; Laughton, 2 May, 1892 — balteatus, Fall, (cingulatus) Heyshott Common, 24 May, 1893 — depressus, Schr. Guestling Cephini Cephus pallipes, Klug. (phthisicus) Hast- ings district — pygmaeus L. Common Macrocephus cynosbati, L. (femoratus). Hastings d'xstnct ; Guestling, 22 May, 1902 — linearis, Schr. Ore (Cam. iii. 117), St. Leonards, Guestling, Lewes — satyrus, Pz. Lewes SiRICINI Sirex juvencus, L. Hastings ; Guestling, 2 October, 1900 ; Storrington, Bog- nor, etc. ; taken 10 or 12 yearly at Dale Park and Slindon (E. Sand- ford) — gigas, L. Hastings, Storrington, Arun- del, Emsworth. Taken fairly plenti- fully to the extent of 20 or 30 yearly in woods round Dale Park and Slin- don (E. Sandford) Hastings district Oryssini Oryssus abietinus, Scop. (E. Collett) CiMBICINI Cimbex connata, Schr. Sussex {Cam. iii. Trichiosoma lucorum, L. Hastings dis- trict, Lewes Abia fasciata, L. HoUington ; Walberton, 20 July, 1900 ; Unwin's collection, — sericea, L. Hastings district, Lewes, Storrington — nigricornis, Leach. Storrington, a larva (Miss Chawner) Argini Arge enodis, L. St. Leonards, Laughton — ustulata, L. Guestling, May and June ; Slindon, 21 May, 1896 — fuscipes, Fall. Abbots Wood, 29 Sep- tember, 1892 — cyanella, Klug. Storrington, Laugh- ton ; Cocking, 12 May, 1895 — cyanocrocea, Forst. Hastings, Guest- ling; not uncommon — rosas, L. Bognor, 10 June, 1895 Lophyrus pini, L. Bexhill, 18 April, 1894; Slindon, 25 May, i ' Nematina Cladius pectinicornis, Fourc. Storrington, Bognor Trichiocampus viminalis, Fall. district (E. W. Andrews) many specimens .895 Guestling, Hastings 119
