1880.] 277 



Occurrence of Limnophilus suhcentralis, Brauer, in Britain. — I have received 

 from Mr. J. J. King, of Glasgow, a ^ of this insect, captured by him at Aviemore, 

 Inverness-shire, in 1878. Considering its authenticated continental distribution, it 

 is surprising it had not sooner been detected in these islands. In general appear- 

 ance it is very like L. lunatus, yet unlike the ordinary dark British form of that 

 insect. Its structural characters are very different : for these I refer to my 

 " Revision and Synopsis," p. 64, pi. viii. These structural characters have suggested 

 a difficulty. I received from Finland both L. suhcentralis and borealis, under the 

 latter name, as determined from my figures. The suggestion was significant, although 

 not intended. There is great structural affinity between suhcentralis and horealis. 

 Yet, no one seeing the two insects side by side, would, I think, venture to suggest 

 specific identity. Nevertheless, it is convenient that suhcentralis be removed from its 

 immediate local position as regards lunatus, and be placed close to horealis, and 

 such a position will be given to it in the Systematic Catalogue at the end of my work. 



The name "suhcentralis" is not altogether new to us. It appeared in vol. ii of 

 this magazine, p. 158 (December, 1865), bxit ei'roneously, as is indicated at p. 183 of 

 the same volume (January, 1866). 



L. suhcentralis is liable to be mistaken for L. lunatus by markings ; it has 

 proved itself liable to be mistaken for L. borealis by structure. It is a much nar- 

 rower insect than the latter, and I do not think it possible there can be any specific 

 connection ; yet there is undoubtedly close affinity. — R. McLachlan, Lewisham : 

 April, 1880. 



Notes on two British Trichopterous insects.— IS-^wmg on three or four occasions 

 found Anaholia nervosa deviate from its habit of "not flying till it is quite dark" 

 (Revis. and Synopsis, p. 103), it seems right I should give some account thereof. As 

 the strangest deviation occurred only once, many years ago, I should not be justified 

 in hoping to repeat the observation now, in the fag end of life ; I, therefore, give 

 you my experinece for what it is worth. 



In October, 1858 or 1859, in a meadow a few yards from Langherne Brook, 

 Hallow, early in the afternoon of a fine day, I saw some twenty specimens of this 

 insect flying to and fro beneath the boughs of two or three young ash trees in a 

 hedge row, at a height of one to eight feet from the grass. I caught some half-dozen 

 specimens, which remained the only representatives of the species in my collection 

 till within the last ten years, when they were replaced by fresh specimens. 



In 1871, I saw a specimen flying by day, which was caught and kept. 



In 1875, I again caught a specimen flying by day. 



Last autumn, I was by the river Teme, on a fine but slightly hazy day, when I 

 saw three specimens flying, between noon and 2 o'clock. 



In all but the first mentioned instance, the siDecimens flew singly, and seemingly 

 only for change of resting place. The day in every case was calm, and there were 

 no visible disturbing influences at work, my collecting at the time being conducted 

 quietly, by watching and observation. 



I met with many specimens of Chatopteryx villosa last autumn, by sweeping 

 bushes and herbage, and by observing them sitting in copula, on leaves, chiefly of 

 alder ; they sat quite exposed on the upper-side of the leaf, indifferent to the full 

 daylight and to enemies (if they have any but man). — J. E. Fletcher, Happy 

 Land, Worcester : mth March, 1880. 



