42 Yorkshire Naturalists’ Union: Annual Report, 1932. 
July 1st. — One specimen of leporina (Miller) at rest on Pine tree at 
Strensall. 
July 3rd. — At Helmsley I took a specimen of A. bloomeri, another 
Yorkshire locality for this species. 
July 6th. — Four miles from York on the Malton Road, I beat off 
oak two larvae of N. chaonia. Several E. obliterata were caught flying 
among the Alders. 
July 9th. — I sugared at Buttercrambe, the more interesting captures 
were one specimen of E. prasina (The Green Arches), one N . triangulum, 
one T. batis, three N .C . nigrum, several M. strigilis. Prasina is very 
rare in the York District. 
July 10th. — Larvae of C. prunata in garden at Huntington. 
July nth. — Forge Valley, near Scarborough, A. bloomeri not scarce 
but difficult to catch, mostly sitting up high on the Beech trunks. 
V . cambrica were also about, but like bloomeri did their worst to avoid 
capture . 
July 18th. — At Langdale End, Scarborough, A. aglaia were fairly 
plentiful, although a windy cold day they were flying over the long 
grasses ; nothing but males were seen. I took a nearly full-fed larvae 
of V . cambrica the same day, also larvae of E. minutata and E. nanata. 
August 24th. — At Strensall larvae were plentiful ; among the bag were 
L. camelina, N. dictaeoides, N. dromedarius, N. ziczae, A. betularia, 
and T. fir mat a. 
September 8th. — Larvae of A. leporina at Strensall on Birch. 
September nth. — Cawood. One larvae of M. persicaria feeding 
on garden daisies in a garden near the Bridge ; in the same garden 
larvae of P. forficalis had simply riddled the leaves of the Horse Radish ; 
a few caterpillars of M . fluctuata were struggling to live on the same 
plants. Our well-known and local E. vespertaria has almost suffered 
extermination owing to the undergrowth having been burnt, all the 
Dwarf Sallow was reduced to ashes, so no ova could possibly exist under 
such conditions ; the insect is rarely found far from this patch and no 
record of the insect has reached me yet for 1932. 
CONCHOLOGICAL SECTION. 
Mollusca (Elsie M. Morehouse) : — The year 1932 can be noted 
by a great improvement in the molluscan world. The past few years 
the conditions have not been in favour of these little animals. In several 
habitats under observation there has been a distinct improvement in 
respect of numbers ; in others the upward grade leaves a great deal to 
be desired. If in 1933 the present conditions are maintained, it is to be 
hoped those species which were practically gone will have fully recovered. 
It is hardly fair to judge the molluscan fauna in the different places 
where meetings have been held, because they are very sensitive to climatic 
conditions and it is not always possible to be out at dusk or later when 
they are feeding. 
Those molluscs worthy of mention or common species taken in unusual 
habitats were Limncea peregra taken from the swift -running becks around 
Sedbergh. In these becks the aquatic plants were practically nil. 
Vitrea radiatula found on stones near a farmhouse, on the way to Carling 
Gill. Arianta arbustorum found on Black Force at an altitude of 
1,000 feet. The different Limncea taken from drains, etc., around 
Ferrybridge on June 4th, the shells were unusually frail, evidently due 
to insufficient lime. Only one Paludestrina stagnalis was found when 
dredging in the Market Weighton Canal on June 28th ; this is very 
unusual. Paludestrina jenkensi and sub-species are invariably local, 
but where they occur there are vast quantities. Another habitat has 
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