COLLECTING IN THE FENS. 



253 



2. Callicorixa, F. B.White, 1873, et auctt. (plur. Callicorisa); 



type, prceusta, Fieb. 



3. Basileocorixa, n. n., 1898 ; type, striata (Linn.). 



= Coriza (Corisa), auctt. 

 = Corisa et Glcenocorisa (part.), Puton, 1880. 

 = Corixa et Glcenocorisa, Saund., 1892. 

 = Corisa et Arctocorisa, Wallengr., 1894. 



4. Glcenocorisa, Thorns., 1869, et pi. auctt. ; type, cavifrons, 



Thorns. 



=z Oreinocorixa, F. B. White, 1873, et Saund., 1892. 



5. Corixa, Geoffr., 1762 (restr. Kirk., 1898); type, geoffroyi, 



Leach. 



= Macrocorisa, Thorns., 1869, et auctt. 



COLLECTING IN THE FENS. 

 By Bussell E. James. 



Arriving at Soham at 7.3 p.m. on Friday, July 22nd, I found 

 Mr. W. 0. Bullman waiting for me with his trap, and we made 

 all haste to Wicken, as the night promised well — still and warm, 

 with very light rain. During the drive, Mr. Bullman told me of 

 the comparatively large numbers of Hydrilla palustris which had 

 occurred in June, some forty to fifty specimens in all, and the 

 name, in fact, is in everyone's mouth, any of the villagers with 

 whom I chatted referring to it. It has been quite a local event. 

 Although, of course, I was much too late for this species, I was 

 anxious to be off, and after a good meal (Mrs. Bullman under- 

 stands entomological appetites) got down to the fen about half- 

 past eight, and found Mr. Baily all ready for me as arranged. 

 He said the season had been only a moderate one except for H. 

 palustris, but thought the night promised well : disappointment, 

 however, was in store for me, as, after netting a few things at 

 dusk, a fog got up and utterly ruined treacle and light. Although 

 it cleared off in twenty minutes, it seemed to have done for the 

 moths, nothing flying afterwards. 



I was only staying four days, so that the first night a blank 

 was disheartening ; but, as it turned out, this was the only fog I 

 had, and light was better afterwards — the Monday, when we 

 stopped down in the fen until day dawned, being a really first- 

 class night, — in fact, the best of the year, according to Baily. 

 Treacle paid more or less each night, both in the fen and in the 

 drove above ; and in the fen, bark nailed on to posts (tried this 

 year as an experiment) proved to be far better than the orthodox 

 grass-knots, and much easier to work. This idea should be 

 useful in salt marshes and elsewhere. Everything was very 



