NOTES ON COLLECTTNO, ETC. 293 



Limnophilus rhombiais, common, but the specimens small ; L. flavi- 

 coTfiis, abundant ; L. marmoratus^ probably the most abundant species 

 seen; L. stigma; L.vittatus ; L. auricula, Tuddenham ; L. hirstints, in 

 the Fens, and I think also at Tuddenham ; Silo pallipes, Tuddt-nham ; 

 Molan7ia angustata, common ; Leptocerus aterriiiiiis, al)undant, but the 

 specimens small ; Mystacides longicornis ; Erotesis baltica, one specimen 

 only at Wicken Fen ; CEcetis laa/stris, not uncommon ; Holocentropus 

 picicornis, abundant ; Tinodes wceneri, Tuddenham ; Lype phceopa, 

 several at Tuddenham; Rhyacophila dorsalis, several at Tuddenham. 



Orthoptera. — Stenobothris viridulns, common, I believe, though 

 some of the specimens I captured for examination were the green var. 

 mollis of ,5. bicolor, which without close attention might readily be mis- 

 taken for it ; 6". 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. 

 purpurascens was common at Wu ken, and the green var. mollis was 

 probably equally so ; Gomphoanis maculatus, at Wicken and Tudden- 

 ham ; Odontiira pitrictatissijiia, 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 i^th, 1891. 



POLYOMMATUS VIRGAUR/EA NEAR BeACHY HeAD. — On AugUSt 4th 



last, a young collector (Arnold Brown, of South Hackney), a friend of 

 mine, captured a specimen of Polyommatus virgaicrcea on a thistle flower 

 in Birling Gap, between Seaford and Beachy Head, The insect is a ^J 

 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 pupje of Retinia 

 resinana 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. 

 September 2nd, 1891. 



Demas coryli. — My brother sent me up a number of larvce 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 Noctu/e, 

 where Mr. South has placed it. The analogy between it and the 

 Orgvias seems very evident. — F. J. Buckell, 32, Canonbury Square. 

 October %(h, 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 Hadena adusta. It is of a pale green, but 

 the peculiar brownish colour of the dorsal surface at once distinguishes 

 it from all other larv?e 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 



