NESTS OF PSEUDOSCORPIONES. 95 
on the shore at Villefranche attached to the under-surface of 
stones: ‘‘ Chaque loge se compose dune espéce de petite capsule 
de forme arrondie tapissée intérieurement par un feutrage blanc 
auquel adhérent extérieurement de menues parcelles de terre ou 
de débris végétaux.” He adds that they were completely closed, 
the animal apparently remaining imprisoned all the winter *. 
Tn Cheliferide the nests have frequently been mentioned, and I 
have had opportunities of examining those of several species. 
The earliest reference for ‘“ Chelifer” is that of Hermann, 
1804 (3), who mentions the occurrence of one of these animals 
“dans un follicule soyeux, enduit de poussiére et attaché a une 
paroi par un de ses cdtés.” Of the four sub-genera of Chelifer, 
there is a mention of nests of Withiws by Godfrey (86), who 
refers without particulars to those of C. simoni Balz. In 
Atemnus, the same author found C. feae Hil. “in a very roomy 
nest on a gum-tree”; and to this sub-genus belongs Balzan’s 
O. nidificator (15), found under flakes of a tree-trunk, in “ nidi, 
in forma di cellule contigue, di una sostanza cerosa, biancastra, 
simile alla seta di certi ragni.” In Chelifer s. s. and Chernes, I 
will refer to two species of the former C. cancroides Lin. and 
C. latreillii Leach, and to two of the latter C. eyrneus LL. Koch 
and ©. cimicoides Fabr.t. C. cancroides Lin., which is well- 
established but doubtfully indigenous with us, lives in stables 
and such-like places. Godfrey (29) found its nests in a loft in 
Glasgow in narrow crevices in old harness. He describes them 
as ‘closed elliptical rings of dust particles, within which was the 
inner silken lining appressed throughout the extent of both upper 
and lower surfaces against the leather.” They belonged evidently 
to immature individuals, and some of them contained cast-skins. 
A few years ago I examined a colony of this animal in stables at 
Grays. Between the double boards of the stall-partitions were 
spaces separated into compartments by the uprights and com- 
pletely closed in; and on some of these boards being removed 
many nests were found on their inner surfaces. These spaces of 
course were much too wide to admit of the nests being attached 
both above and below; and, as is usual in such cases, the tissue 
of the floor only was attached to the wood and was continued 
above as a free convex roof. They bore externally a partial 
covering of extraneous fragments. Most of them were in- 
habited; and in at least two were found females with the 
brood-pouch attached. C. latreillii Leach is a maritime species 
with us, occurring along our eastern shores. On those of Fife- 
shire and East Lothian it is found in rock-crevices; and 
Godfrey (29) states that its nests, used for moulting and also, 
he believed, for hibernation, are large and made generally 
* The quotation is from Dr. Barrois’ well-known “Mémoire sur le développe- 
ment des Chelifer,” the subject of which was in reality Garypus minor L. Koch. 
Iam indebted to the author for specimens of the animals and to M. Simon for 
obligingly examining them. 
+ For the nomenclature of British and Ivish species referred to in this paper, 
cf. Kew (33). 
