NOTES ON COLLECTING, ETC. 
293 
Limnophilus rhombicus, common, but the specimens small ; L. flavi- 
cornis, abundant; L. marmoratiis^ probably the most abundant species 
seen; L. stigma-, L.vittatus ; L. auricula, Tuddenham ; L. hirsutus, in 
the Fens, and I think also at Tuddenham ; Silo pallipes, Tuddenham ; 
Molanna angustata, common ; Leptocerus aterrimus, abundant, but the 
sj^ecimens small; Mystacides longicornis Eroiesis baltica, one specimen 
only at Wicken Fen ; CEcetis lacustris, not uncommon ; Holoce 7 itropus 
picicornis, abundant ; Tinodes wceneri, Tuddenham ; Lype. phccopa, 
several at Tuddenham; Rhyacophila dorsalis, several at Tuddenham. 
Orthoptera. — Stenobothris viridulus, common, I believe, though 
some of the specimens I captured for examination were the green var. 
mollis of S. bicolor, which without close attention might readily be mis- 
taken for it ; S. elegans, not uncommon at Wicken, and I think occurred 
also at Tuddenham ; S. bicolor, abundant at Wicken and equally so at 
Tuddenham; it was exceedingly variable in colour; the purple var. 
purpurasce?is was common at Wi( ken, and the green var. ?noilis was 
probably equally so ; Gomphocerus inaculatus, at Wicken and Tudden- 
ham ; Odontura punctatissima, Mr. McLachlan beat out a nice specimen 
in “ the lane ” at Wicken ; Mecanema varia, beaten out of the trees in 
plenty at Chippenham Fen ; Xiphidium dorsale, in abundance and of all 
sizes on Chippenham Fen, also on Wicken Fen, but less commonly. — • 
Geo. T, Porritt, Huddersfield. October 2^th, 1891. 
POLYOMMATUS VIRGAURiEA NEAR BeACHY HeAD.— On AugUSt 4th 
last, a young collector (Arnold Brown, of South Hackney), a friend of 
mine, captured a specimen of Polyo 77 Wiatus virgaurcea on a thistle flower 
in Birling Gap, between Seaford and Beachy Head. The insect is a 
in fair condition, but had evidently been on the wing some time. It is 
now in my possession. — R, W. Robbins, 79, Chardmore Road, Clapton 
Common. 
Habits of Retinia resinana. — I had several pupae of Retinia 
resiTiana sent to me, but failed to rear any. I noticed that if the pupa 
pushed its way quite out of the resinous mass it was sure to die; 
in some others where I was successful the stems of fir were put in wet 
sand in a perpendicular position, and these emerged only when the 
pupa was held partly in. I have not noticed this with other stem- 
feeding species. — F. N. Pierce, 143, Smithdown Lane, Liverpool. 
Septe 77 iber 27 id, 1891. 
Demas coryli. — My brother sent me up a number of larvae of this 
species from the neighbourhood of Cheltenham. This larva spins up 
in a leaf at each change of skin. A study of the larva suggests grave 
doubt whether this species is not out of place amongst the Nocture, 
where Mr. South has placed it. The analogy between it and the 
Orgyias seems very evident. — F. J. Buckell, 32, Canonbury Square. 
October 2 >th, 1891. 
Hadena porphyrea (satura). — From personal experience I can 
give a few hints about this species : — ist. The full-fed larva cannot 
well be mistaken for that of any other species, although it does 
resemble some varieties of Hade 7 ia adusta. It is of a pale green, but 
the peculiar brownish colour of the dorsal surface at once distinguishes 
it from all other larvae I have even seen. 2nd. It feeds by night on 
the expanded flowers of honeysuckle and whins (gorse) ; it also eats 
other plants, but prefers the flowers. I have an idea that this species 
will yet be turned up in some numbers in Aberdeenshire. I expected 
