1875.] NEW SPECIES OF ERIGONE. 327 
the tibiee of the first pair are rather incrassated on the underside 
not far from the fore extremity, and at this part the hairs are longer, 
stronger, aud more numerous than elsewhere; the undersides of the 
femora of the first pair of legs are also furnished with short, very 
slightly curved semispinous bristles; these characteristics of the 
first pair are repeated, theugh in a much less marked degree, in the 
legs of the second pair. The colour of the legs is a clear yellow. 
The palpi are similar to the legs in colour; they are short, but 
rather strong, and the cubital joint is curved: the radial is very 
short, but bas its fore extremity on the inner side produced into a 
long, strong, slightly curved apophysis, whose extremity points 
outwards ; from beneath the outer side of this apophysis spring two 
prominent corneous projections whose independent sharp points 
meet in a somewhat scissor-like form: the outer side of the radial 
joint is also produced into a short, prominent, obtusely pointed 
apophysis, whose extremity is furnished with a few very short diver- 
gent bristles ; and below this near the underside of the radial joint is 
another slightly curved corneous projection, apparently connected 
with the two others, whose points meet as above mentioned. The 
structure of this joint is very peculiar, and by no means easy to ob- 
serve or describe correctly ; but the particulars given, together with 
the figures, will, it is believed, serve to distinguish it readily from any 
other yet described. The digital joint is of good size, obtuse at its 
fore extremity, and furnished with coarse hairs. The palpal organs 
are prominent and rather complex, with a strong, curved, pointed 
corneous process towards their fore extremity. 
The falces are moderately long and tolerably strong, being rather 
prominent near the middle in front, when looked at in profile; they 
are each furnished with two or three teeth close together near their 
extremity on the inner side, there being also another a little above 
them and rather more in front. 
The mazille and labium are similar in colour to the legs, and 
present no unusual feature. 
The abdomen is oval, tolerably convex above, glossy, but of a dull 
leaden black colour, sparingly clothed with hairs, and does not pro- 
ject very much over the base of the cephalothorax. 
The female differs from the male in the relative length of the 
legs, which are 4, 1, 2, 3, instead of 1, 4, 2, 3, those of the first 
pair entirely wanting the distinctive characters of those of the male, 
while a few very slender erect spines are observable on their upper- 
sides; the abdomen is of a yellowish brown hue slightly suffused 
with blackish behind and towards the underside; it is also more densely 
clothed with hairs than that of the male, and (in spirit of wine) 
there are several pale transverse curved lines in a longitudinal series 
visible on the hinder part above the spinners ; the form of the genital 
aperture is characteristic. It is possible that this may not be the 
female of the male above described, though it agrees sufficiently well 
with it in general characters. 
An adult example of each sex was sent to me by M. Eugtne 
Simon, by whom they were found at Troyes, France, in 1871, 
