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Yorkshire Naturalists at Robin Hood's Bay. 
A Hooded Crow was seen near Hawsker, Carrion Crows were nesting in 
Oxbank Wood, and a small rookery of five nests at Thorpe contained 
young on April 18th. Nests of the Blackbird, Mistle Thrush and Song 
Thrush were seen, the latter containing young birds. A Cuckoo was 
seen (April 17th) near the Alum Quarry in How Dale. In the Alum 
Quarry at Sleights many Jackdaws were nesting, and also a pair of 
Stockdoves. An Owl was disturbed hiding under the heather in the 
base of this quarry. A few members who visited Miss Lucas’ garden 
at Raw saw the unusual spectacle of a House Sparrow’s untidy nest 
built in the top of a hawthorn tree. 
Other birds noted during the meeting were Linnet, Bullfinch, Rock 
Pipit, Tawny Owl, Grouse and Pheasant. 
Entomology (J. M. Brown) : — Notwithstanding the warm, sunny 
weather of the preceding fortnight, insects were not at all conspicuous 
during the week-end. Very few butterflies were seen on the wing, and 
these included only the very common Pieris napi L. and Vanessa urticae 
L. A few early humble-bees, probably Bombus terrestris L. and B. 
lapidarius L., were observed seeking out nesting sites, and beetles were 
not plentiful, but included Cicindela campestris L. and Byrrhus pilula L. 
hidden beneath stones in the alum quarry, Cychrus rostratus L. by Little 
Beck, Bembidion nitidulus Mm. and Agonum ruficornis Gz. fairly plentiful 
by the various becks. The only mayfly noticed was the subimago of 
Bcetis rhodani Piet, by Little Beck. Several species of Stone-fly were 
taken by the different becks, namely : — 
Per lodes mortoni Klap., near Falling Foss. 
Tceniopteryx risi Mort., in Fylingdales. 
Protonemura meyeri Piet. 
P. precox Mort., in Fylingdales. 
Nemoura cambrica Mort. 
Leuctra hippopus Kmpy. 
L. inermis Kmpy. 
and the very local Yorkshire species, Capnia vidua Ivlp. in Howdale 
and by Little Beck (below Falling Foss), thus adding a new V.C. 
(62) for the species. 
Very few Hemiptera were seen apart from the aquatic and semi- 
aquatic species. Acanthia {Saida) saltatoria L., A. C-album Fieb., Gerris 
Gibbifer Schum. and Velia currens F. occurred fairly commonly, and a 
single specimen of the Psyllid, Psylla melanoneura Forst. was obtained. 
A considerable number of Collembola were collected, mostly in the 
alum quarry, in a situation where food would appear to be of the scantiest, 
viz. under stones on the loose talus slopes of shale. These included 
Onychiurus armatus (Tullb.). 
Pseudisotoma sensibilis (Tullb.). 
Isotoma viridis (Bourl.). 
Isotomurus palustris Hull.). 
Entomobrya nivalis L. 
E. nicoleti (Lubb.). 
E. multifasciata (Tullb.). 
Tomocerus minor (Lubb.). 
Orchesella cincta (L.). 
and O. litoralis Brown, a local Yorkshire species, first described from 
specimens taken at Runswick Bay {Ann. and Mag. Nat. Hist., 1925, 
P- I 55 ) • 
Anurida maritima (Laboulb.) was plentiful in rock pools on the 
shore . 
The Thysanuran, Campodea staphylinus Westw. was fairly plentiful, 
and a Rock -jumper, probably Petrobius carpentari (Bagn.) was reported 
as occurring on the rocks. 
Diptera (Chris. A. Cheetham) : — Inland, flies were scarce, a female 
The Naturalist 
