94 THE ENTOMOLOGIST. 



The capture of the above specimen was recorded by Mr. Morton 

 in the 'Entomologist ' for 1911 (vol. xliv. p. 134). My knowledge 

 of the Neuroptera is of the slightest, but I determined to make 

 an effort to obtain more specimens of this species, and knowing 

 from the label on the first the exact date and place where it 

 should be looked for, I visited the locality on April 12th, 1911. 

 The place in question, which is about a mile from the village of 

 West Stow, is an ideal collecting ground, and I have taken there 

 several more or less local or rare species of other orders. A 

 marshy spot, covered with reeds and rushes, and studded with 

 trees and bushes of various kinds, it runs down to the river 

 Lark, here only a few yards broad, and the whole place looks as 

 if it had never been cultivated. Walking slowly along the bank 

 of the stream, I soon detected a Nemoura strugghng along, half 

 swimming and half flying, on the surface of the water. With 

 the help of a long reed I captured and boxed him, and during the 

 course of the morning I obtained a couple of dozen or so, most 

 of them in a similar way. They were probably just emerging. 



A few days later I again visited the locality, and on this 

 occasion I found Nemouras in large numbers. A few were flying, 

 but most of the specimens were sitting on branches of alders and 

 the stems of some large beeches, where they were easily detected. 

 I took as many as I required, in fact, had I been so inclined, I 

 could have taken scores. Nearly all, on examination by Mr. Mor- 

 ton, proved to be N. duhitans, a few only being N. inconspicua. 



During the remainder of the summer I took every Nemoura 

 that I came across in other localities in the neighbourhood, with 

 a view to ascertaining the distribution of N. duhitans in West 

 Suffolk. However, all those taken elsewhere proved to be either 

 N. inconspicua or N. variegata; it seems, therefore, probable that 

 duhitans is very local, though it is almost certain to occur in 

 other places along the river Lark. 



I have to thank Mr. Morton for his help in determination, 

 which is not at all easy unless one has made a special study of 

 the smaller Neuroptera. 



ON TWO PECULIAR FORMS OF BOARMIA 

 REP AND AT A. 



By William Mansbridge, F.E.S. 



Nigro-pallida, var. nov. 

 For several years prior to 1909 I had captured odd specimens 

 of a peculiar pearly grey form of B. repandata of the nigra 

 variety. These specimens being all more or less worn were 

 regarded as weather-bleached insects and were not thought of 

 much interest. 



