138 fJ'i'ie' 



cold winds ; wheu the sun was hot and the wind abated, they began to issue 

 from the crevices in wliich they had been hiding ; Coranns subapterus and 

 Prostemma guttula, one macropterous specimen of each at St. Ouen's Bay, the 

 latter, a most beautiful insect, taking refuge under a dried patch of cow-dung (!) ; 

 Nabis lativentris, ferus, and rttgosus. Young larvae of an Odontosc.elis, pro- 

 bably O. fidiginosa, were not uncommon in moss ; the species of this genus 

 apparently pass the winter as young larvae, as I have previously found 

 O. dorsulis in the same way. It was, of course, too early for Capsidae, except 

 the very few that hibernate ; of these I got only two, Meyaloceraea erratica, § 

 (the ochreous form), and Charagochihis gyllenhalii. There were also large 

 numbers of very young red Capsid larvae amongst the Marram grass, but I 

 have not yet been able to identify them. I had but a few days in Guernsey, 

 and only one could be* devoted to collecting ; I selected for this L'Ancresse, a 

 eandy stretch in the north of the island; but a very cold N.W. wind was 

 blowing with something like the force of a hul-ricane, and entomologizing 

 was almost impossible ; hence I found only Verlusia quadrata, Stenocephalus 

 agilis, Ileterogaster urticae, Ischnocoris angustulus, Plinthisus brevipeniiis, and 

 Sti/gnocoris fuligineus. All the species are on the British list with the exception 

 of the Lygaeosoma. — E. A. Butler, 14 Drylands Eoad, Hornsey, N. 8. 



Note on Hop)locampa testudinea King. — In June 1917 I collected a few 

 apples containing larvae of this species, and the larvae duly buried themselves 

 and formed their cocoons. Nothing came of these in 1918, but on May 5th 

 this year (1919) two imagines appeared. I find there are still two cocoons 

 intact, and from their apparently different specific gravities, I believe one of 

 these contains a living tenant, but the other is probably dead. Of the few 

 small eawflies I have reared most gnaw away portions of the cocoon to make 

 an opening for escape, but this species cuts oft" a lid as neatly as does a Trichio- 

 soma, a Cimbex, or a Lophyrus, from which it differs by having its cocoon 

 subterranean. I don'c know whether it is usual for H. testudinea to pass two 

 years in its cocoon, but it is noteworthy that my specimens avoided coming 

 out in 1918, in which year, it is hardly exaggerating to say, there were no 

 apples. One of the remaining cocoons has since produced an Ichneumonid, 

 which Mr. Morley tells me is Perilissiis luteolator Grav., J , not a common 

 species, whose various recorded hosts are all Tenthredinids. — T. A, Chapman, 

 Betula, Reigate : May 9th, 1919. 



Trichiosoma tibicde and Acampsia pseudosjyretella. — Last spring I sleeved 

 out a number of both sexes of Trichiosoma tibiale on hawthorn, and later 

 collected the cocoons that resulted ; during the last fortnight a number of 

 males have emerged and not one female. Though not yet affording any proof, 

 this result supports the view that male flies are the only result of want of ferti- 

 lisation in this species, with the added conclusion that this sawfly will not 

 pair in such captivity as a fairly roomy sleeve supplies. To-day I examined 

 the jar with the cocoons, all had emerged except two — one contained a dead 

 male imago, the other a dead larva and also a living larva oi A. pseiidospretella, 

 I could not find any hole or flaw in the cocoon, by which it could have entered 

 even when newly hatched, but can only suppose it must, somehow, have 

 entered at that stage. 1 have been occasionally puzzled to understand how 

 this destructive pest reaches its feeding-habitat, but I think this instance 

 most strongly exemplifles the difficulties of excluding it. 



