HYMENOPTERA AND DIPTERA OF A KENTISH SALT-MARSH. 59 



Surrey, on June loth (W. J. Aslidown), while I captured a male 

 P. comvt'iuiis in the New Forest on i^ugust 16th. On August 

 25th G. T. Lyle took a Panorpa at Fleam Dyke, near Camhridge, 

 and sent it to me. Although a female, there is no douht that it 

 belongs to the scarce ppecies J', cognata. It is to be hoped that 

 he will succeed in securing males during the coming season. 

 Lyle says he has found P. commiini.^ and P. germanica also, but 

 S2:»aringly, at Cambridge. 



Kingston-on-Thames, 



February, 1919. 



HYMENOPTEEA AND DIPTEEA OF A KENTISH 

 SALT-MAPvSH. 



By Major R. B. Robertson. 



I HAVE been stationed at Oare Camp, near Favershara, for a 

 little over a year, and have worked the salt-marshes bordering 

 Oare Creek and west bank of River Swale on every available 

 opportuity. The land all round is cut up by dykes, in which 

 grow various reeds and sedges, the flowers of which are most 

 attractive to Diptera and Hymenoptera. Nonagria gemini- 

 puncta pupae were common in the reeds, and they produced 

 rather dark imagines, but not so dark as those obtained at 

 Christchurch some years ago. Adopoealineola^o.^ in the greatest 

 abundance, and although I saw thousands I never came across a 

 variety. The marshes are covered with sea lavender and other 

 plants, and nests of Malacosoma castrensia were very common, 

 seeming to eat everything impartially. Brnnetiii was also often 

 disturbed from the Statice. I was of course unable to use a 

 lantern or work the marshes at all by night ; but I should say 

 one would 1 e well repaid in doing so. I don't think I have ever 

 seen a place so devoid of butterflies, only about twenty species 

 being noted, viz. P. hrassica, P. napi, P. rapce, G. rhamni, A. 

 vrtica, V. io, i^'. polychloros, P. atalanta, P. cardui, E. jiirtina, 

 E. titJtomis, C. pamphilus , P. plilceas, one rather nice var. with 

 silver blotch, A. medon, very fine, P. icarus, H. malva, N. tages, 

 A. sylvanus, and A. lineola. I did not explore the woods much 

 as I wanted to devote all my time to Diptera, aculeate Hymeno- 

 ptera, and sawflies, a list of which is appended. I came across 

 the burrows of Andrena cineraria in the precincts of the camp, 

 and the parasite Nomada lathburiana was fairly common, but 

 only two or three S c? were taken as I did not observe them in 

 time. 



Hymenoptera. 



Andrena trimmerana, A. spj'eta = niveata, A. cingnlala, A. 

 spinigera, A. iviUiella, A. clarkella, A. dorsata, A. fidvicrus, A. 



