New and rare Yorkshire Spiders. 27 
(not in Bute as therein described). The specimen remained 
unique until the Rev. J. E. Hull and I took a large number of 
examples on the flats on the south-east side of Findhorn Bay, 
in Morayshire, in August, 1910. No other specimens have 
been turned up until I captured several of both sexes at a height 
of nearly 1,000 feet on Easby Moor, on Whit-Monday, 1914. 
Just as in recording Cornicularia karpinski I had to note a 
peculiarity in distribution, so I have in the present case ; 
in this instance the positions are reversed, for here we have a 
case of a spider considered peculiar to salt marshes turning 
up on the hills! Not that when one analyses the conditions 
under which the spiders live are any great differences observ- 
able ; when we got Cnep. ambiguus at Findhorn, it occurred 
in wet spots at the roots of such plants as Aster tripolium, 
Triglochin maritimum, Armeria maritima, amongst low growing 
mosses and liverworts, whilst on the moors I got it in mosses 
and liverworts growing amongst Drosera rotundifolia and 
various Junci, also in wet spots. The Rev. J. E. Hull identified 
this species. 
Erigone promiscua Camb.—1 9 Eston Moor. 
Mengia warburtoni Camb.—1 92 Eston Moor. 
Ceratinella scabrosa Camb.—Several, Eston Moor. 
Bathyphantes pullatus Camb.—Both sexes, both on Eston 
and Great Ayton Moors. I have now taken all the species 
of the genus Bathyphantes on Eston Moor. 
Leptyphantes tenebricola Wid.—Eston Moor. 
Agyneta decora Camb.—Great Ayton Moor. 
Agyneta cauta Camb.—Great Ayton Moor. 
Pirata hygrophilus Thor.—Goathland. 
crn. 
The Genitalia of the British Geometridae. By F. N. Pierce, F.E.S. 
Liverpool, 1914. After five years since the publication of the first volume 
on the Genitalia of the British Lepidoptera, which dealt with the Noctue, 
we hail with pleasure the appearance of the second volume, which deals 
with the Geometridz. The volume on the Noctue was so fully noticed 
in this journal (The Naturalist, June, 1909, pages 239-240), that there 
need be little said concerning this companion volume. It is in every 
respect equal to the first, both in the descriptions and plates, and practi- 
cally all we said about the first volume can be applied to this. The author 
has, we think, erred in basing his classification of the species entirely on 
the differences in the genitalia, for its absurdity is apparent when it 
involves, as is here does, the placing of our very familiar Boayrmia re- 
pandata and B. gemmavia in different genera (Alcis and Selidosema respec- 
tively). These two species are so much alike that for some time one of 
our best southern lepidopterists insisted that a northern melanic form of 
vepandata really belonged to gemmaria. The larve and habits of the 
two species, too, are almost entirely similar throughout. Yet Mr. Pierce 
actually places another species (4. glabvavia), which is widely different 
both as larva and imago from either, between them. The book altogether, 
is a grand addition to our literature on the lepidoptera, and we hope that 
the third volume, which is to deal with the Tortricidae, may make its 
appearance long before five more years have passed—G.T.P. 
1915 Jan. 1. 
