260 THE entomologist's kecord. 



appearance, and we quickly found pup* of what were, without doubt, 

 N. anindinis [tijpliac), but A', vannae was not there, and we tried the 

 small ^bullrush (7'. rntii)i(lif<iliiii>i), but the species obtained was the 

 same, and the hundreds if not thousands of plants searched failed alto- 

 gether to give a single .V. caiuiac between us. A very large percentage 

 (about 60 per cent.) of the X. anindixis were ichneumoned, but those 

 that did hatch were reniarkalily fine. The day work we closed early, 

 but were off' again for the very earliest of twilight Hyers. Xudaria 

 sene.r showed itself and was boxed, and was quickly followed by 

 Lithosia niiiscerdn, and then the fog again began rising, and although 

 we persevered with the light the result was nil. The following day the 

 work was of the same description as previously. A boat (the hire of 

 which is only from Is. to Is. 6d. per diem) was chartered, and a canncu'- 

 tjiphac search was organised ; joined to these two names we might add 

 X. spanjanii, but I will quickly take the strain oft' your readers' minds by 

 saying that Ny'rtr//rt»//n// rrt»/').s»»nvas not tenanted by this desirable species. 

 Speculations as to fog coming on later were entertained freely, and 

 every speck of cloud was welcomed, as we knew that this would stay the 

 too rapid radiation of the day's heat. Dusk came on, and L. iiuiscrrda 

 and F. vittata were again taken. Then we both kept netting Leamnia 

 iinpura in anticipation of its being something better. Presently my 

 friend hailed me to come and examine a " wainscot." I pronounced 

 immediately, "You have got it; it is Leacania hn'rilinca '." This 

 gave us an impetus that it would be hard to describe. The lamp was 

 lit, while one attended to the still twilight-flying species. Very soon 

 Mr. James had another L. birrilinea, and I then just saved my reputa- 

 tion by taking one flying round the lamp. Fluttering up the reed- 

 stems Cliaracas i/iroiiinis $ s were netted, and varied from examples 

 with deep brown-l^lack ground colour to the reddish form. They were 

 of the usual fine size met with in the Cambridge fens. Only females 

 were taken. Addalia imnuitata and Catacli/sta Icinnata turned up at 

 the light, and then the clouds rolled by and we were treated to another 

 fog, not quite so bad as on the previous two nights, but bad enough to 

 make the attracting power of the light a failure. Next evening fog thicker 

 than ever ! ^Yith four nights' fog, one following the other, it appeared 

 as if the reason why one does not hear so much about the '' broad " 

 collecting as the fen is that the handicap with the elements is so much 

 greater. My friend had made up his mind to go back to town on 

 Sunday night, and thus the evening programmes were finished as far 

 as he was concerned. But Sunday morning made the temptation to 

 stay another night too strong. The sky was as heavy as lead, and 

 although later in the day the sun got out it was not for long. In the in- 

 terval that it did, for Avant of something better to do, I bicycled into Nor- 

 wich and inspected the once more famous city. For a place of its size I 

 know of none more hidden, lying as it does in a veritable pit. Six 

 o'clock saw me back preparing for a great night. We moved oft' with 

 every box we possessed. The picture of the fen at dusk had quite a 

 dift'erent appearance. Crambids were flying in multitudes, and included 

 Crconhiis jicrlclliis, ('. viihiirlliis, ('. itliiiinostlliis, which were later joined 

 by ScJiiK'jKihiiis (jifiaiitclliis, S. fitrfiviiliis^ S. iiiHcronclbts, and < 'Jiili> 

 phnKiiiiitdUts. Lithdsia jinisrcrda was then taken, and three more L. 

 hn'riliitca. V>y this time it was time to light the lamp. There was 

 not the suspicion of a fog of any sort, and the light looked like a 



