Arachnida of Epping Forest. 45
P. Parietinum, Clerck.—On walls.
Opilio epphippiatus, C. Koch.—On dead leaves and grass.
Order—SCORPIONLDEA.
Pseudo-Scorpiones. Family—Cheliferidae.
Cheiridium museorum, Leach.—"Forest School," June,
1884.
Chithonius rayi, L. Koch.—Among dead leaves, &c.
Obisium simile, L. Koch.—Ditto.
Order—ACARIDEA.
Family—Ixodidae .
Ixodes ricinus, C. Koch.—On bushes and trees.
Family—Gamasidae .
Gamasus crassipes, Hermann.—Among dead leaves.
Family—Oribatida .
Damaeus geniculatus, C. Koch.—Among dead leaves, &c.
Nothrus spiniger, C. Koch.—Ditto.
Mr. W. Cole tells me that a spider's nest, shaped like an
inverted wine-glass (but afterwards plastered with mud), and
attached to twigs of broom, rushes, &c, is commonly found
in the Forest. This is probably the nest of one of the only
two spiders at present known in England as forming such a
one—Agroeca brunnea, Blackw., or A. proxima, Cambr. (Fam.
Drassidae) ; either or both would be likely to occur in Epping
Forest.
[As the above is the first paper on the Arachnida which
has been communicated to the Club, it may not be out of
place to print the following hints on the methods of practi-
cally studying these creatures, which we take from the
Introduction to Mr. Pickard-Cambridge's valuable work,
'The Spiders of Dorset,' above referred to. The directions
will be of great service to any of our members who may be
inclined to take up the study and collecting of spiders and
allied animals;—