REV. O. P. CAMBRIDGE ON BRITISH SPIDERS. 4935 
shire. I have never met with it elsewhere, nor received it from any other locality. 
M. Simon considers it identical with 4ttus petrensis (Westr. Ar. Suec. p. 555); but its 
identity with that species appears to me as yet doubtful. 
SALTICUS CARICIS. 
Attus caricis, Westr. Ar. Suec. p. 576. 
An adult male and female of this small species, now recorded for the first time as 
British, were given me by the Hon. T. de Grey (now Lord Walsingham), who captured 
them on rushes, in à marshy spot near Merton Hall, Norfolk, in April 1870. In the 
character of its markings it bears some resemblance to the foregoing species (Salticus 
coccociliatus), but may easily be distinguished by its larger size and comparatively dull 
colouring. The scarlet irides are wanting, as well as the brilliant white hairs on the 
palpi of the male. The abdomen is of a blackish brown colour, clothed with dull yellowish 
and brown hairs; the hinder part of the upperside has a longitudinal series of several 
rather long, slightly angular bars or chevrons of a clearer yellow than the rest of the 
abdomen; the radial joints of the palpi in the male have a longish pointed production at 
the extremity of their outer sides; the cephalothorax has the caput nearly black, and 
the rest brown tinged with reddish, but all more or less clothed with hairs of a similar 
colour to those on the abdomen ; the legs are without bands or spots. 
SALTICUS FORMICARIUS. 
Salticus formicarius, Bl. Brit. & Ir. Spid. p. 64, pl. iii. fig. 36. 
Attus ; Walck. Ins. Apt. i. p. 470. 
formicoides, Walck. Ins. Apt. i. p. 471. 
The Salticus formicarius (Bl.) was inserted in * Brit. and Ir. Spiders' on the authority 
of Dr. Leach (Encycl. Brit. Suppl. to 4th, 5th, and 6th ed., art. Annulosa) Mr. Black- 
wall, however, has included in his synonymic references the 4ttus formicarius (Koch), 
Die Arachn. Bd. xiii. p. 33, tab. 438. figs. 1101, 1102, which is an entirely different 
species, and evidently the Salticus formiceformis of Lucas (Revue de Zool. Guérin, 1850) : 
it is not clear whence Mr. Blackwall's description is derived; but his figure is from 
an undoubted British example of the species referred to above (Walck. Ins. Apt. i. 470, 
and ib. 471), which are evidently the same, although given by M. Walckenaer under two 
names and descriptions. The example from which Mr. Blackwall’s figure was drawn was 
taken at Southend by Mr. C. Waterhouse, and is now in the British Museum. Whether 
the spider recorded by Dr. Leach is of this species or not it is impossible to determine. 
Nor does it appear quite certain, as M. Simon considers it to be (Monog. des esp. europ. 
de la fam. des Attides, Paris 1869), that the species figured in Bl. Brit. and Ir. Spid. 
(although undoubtedly that described and figured by Walckenaer) is the S. formicarius 
. of De Geer, between whose figures and description there is an evident confusion. (Vide 
De Geer, t. vii. p. 293, pl. 18. figs. 1-4. 1778.) 
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