A male of this spider, which had the palpal organs perfectly developed, was fpund
running on a footpath at Oakland in May, ,1838.
N e r ië n e pu l l a
' Neriëne piilla, Blackw., Linn. Trans., vol. xviii,' p. 846."
_ _ Black#., Annals;and Mag. of Nat. ‘ Hïslf.,! sécond seriefe, vól. ix;' p; 21.'
Argus pullus, Walck., Hist. 'Nat', des Insect. Apt., tóm.‘ i^, p. 5l2.r
. Length of the male, Ath of an inch;' length' of thé óephalo-thöfax, Ath, breadth, Ath;
breadth of the abdomen, Ath; length of an anterior leg, jth ; length of a lèg of the third
pair, Athi
The cephalo-thorax is oval, convex, glossy, with slight furrows on the sides, converging
towards an indentation in the medial line, and its colour is dark-brown. The falces are strong,
conical, armed with a few teeth on the inner surface,- and somewhat inclined towards the-
sternum ; the maxillae are powerful, and inclined towards the lip, which is quadrate. These
parts have a dark, reddish-brown tint. The sternum is heart-shaped, glossy, and of a brown
colour, with very minute spots of a darker hue. The legs have a reddish-brown tint, and
the anterior and posterior pairs are equal in length; each tarsus is terminated by three claws ;
the two superior ones are curved and pectinated, and the inferior one is inflected near its
base. The palpi are of a rëd-brown colour, with the exception' of the digital joint, which has
a dark-brown tint; the humeral joint is curved towards the cephalo-thorax,' arid1 the Öubital
and radial joints are short, the latter having a large process, rounded at its extremity, on the.
outer and a smaller one on the inner sid e ; the digital joint is oval, hairy and very convex
externally, concave within, comprising the palpal organs, which are highly developed, •complicated
in structure, and of a red-brown hue. The abdomen is oviform, convex above, projecting
over the base of the cephalo-thorax; it is thinly clothed with hairs, and of a yellowish-
brown colour, with numerous minute spots and fine streaks of a deeper shade; and the
branchial opercula have a palè-yellow tint.
Males öf Neriëne puUa, in a state of maturity, were captured in June, 1836, oh rails hear1
Llanrwst.
N e r ië n e g r a c il is . PI. XYIII, fig. 172.
Neriëne gracilis, Blackw., Linn. Trans., vol. xviii, p. 646. .
— , ü-i.. Blackw., Annals and Mag. of Nat. Hist., second series, vol. ix, p. 21.
Argus — Walck., Hist. Nat. des Insect. Apt;, tom. iv» p. 512.
Length of the female, Ath of an inch; length of ; the cephalo-thorax, Ath, breadth, And ;
breadth of the abdomen, Ath; length of an anterior leg, |th length of a leg ,of the third
pair, Ath.
The cephalb-thora-x is oval-,1 convex, glossy, with an indentation in the médial line ; the
falces atë powerful; conical, armed with'teeth on the inner surface, And inclined towards the
sternum, which is heart-shaped; the maxillae are strong, and inclined 'towards the liji, which
isj semicircular and ' prominent at the apex. These1 parts are'of a brownish-black colour.
The legs are slender; provided with hairs and a few fine, erect spines, ahd have a pale, reddish-
brown tint ; the anterior1 and posterior pairs1 are èqual in length ; each'tarsus is terminated by
three claws ; the two: superior ones are curved and pectinated, and the inferior one is inflected
near its base. The palpi havé a dark-greenish hue. Thé’ abdomen is slender, oviform, and
projects a:little over the base of the cephalo-thorax; it is thinly clothed with hairs, and of a
brownish-black colour ; and the branchial opercula have a dark-brown tint.
The male closely resembles the female in colour, but its falces and maxillae are tinged
with red, arid the foriher; which are1 divergent at the extremity, have a small process in front,
near the articulation of the fang. The humeral joint of the palpi is curved towards the
cephalo-thorax, and has a row of hairs, directed forwards, extending along its upper part ;
the cubital and radial joints are short ; the latter, which is much the stronger, is slightly
elongated in front, and has a small, pointed process on the outer side, near its extremity ;
the digital joint is somewhat oval, having at the upper part a bold prominence, indented on
the outer side, and a curved, conical protuberance on the inner side ; it is convex and hairy
externally, concave within, comprising the palpal organs, which are highly developed, complicated
in structure, prominent, and of a dark, reddish-brown colour.
Both sexes of this species were taken on rails at Crumpsall Hall, near Manchester, and
at Capel Garmori, in the parish of Llanrwst, Denbighshire, in the autumn of 1836.
Ne^iene vaGaNs.1’ PI. XVIII, fig. 173'.
Neriene Vagans, Blackw., Research, in Zool., p. 374.
' __ Blackw., Annals and Mag.' of Nat. Hist.,'second series, vol. ix, p. 21.
Length of the femalfe, Ath of an inch ; length of the cephalo-thorax, Ath, breadth, Ath |
breadth of the abdomen; Ath; length of an anterior leg, gth; length of a leg of the third
pair, Ath- :
The anteririr eyes of the four intermediate'ones forming the trapezoid are very minute
and near t o ' each other. The cephalo-thorax is oval, convex, glossy, somewhat depressed
before, where the eyes are situated, and has a slight indentation in the medial line ; the falces
’are1 strong, conical, 1 armed with teeth on the inner surface, and inclined a little towards the
sternum, which is coriVex arid heart-shaped; the maxillae are enlarged at the base, where the
palpi are inserted, slightly so at the extremity, and iriclined towards the lip, which is semicircular
arid prominent at the apex. These parts are of a dark-brown colour, the lip being
the darkest.1 The legs have a red-brown tint, and the anterior arid posterior pairs are equal
in length; each tarsus is terminated by three claws; the two superior ones are curved and
pectiriated, and the inferior one is inflected near its base. The palpi resemble the legs