422 REV. O. P. CAMBRIDGE ON NEW BRITISH SPIDERS. 
THERIDION VENUSTUM. 
Theridion venustum, Walck. Ins. Apt. tom. ii. p. 316, no. 23. 
A very young specimen (female) of a Theridion, which I feel little doubt belongs to the 
above species, was forwarded to me by Mr. Parfitt, of Exeter, by whom it was captured 
near that city in April 1869. This is its first record as a British species. 
THERIDION MELANOGASTER. | 
Atea melanogaster, Koch, Die Arachn. Bd. xi. p. 143, pl. 392. figs. 941, 942. 
Theridion congener, Camb. Zoologist for 1863, p. 8576. i 
In describing this as a Theridion in 1863, I was unaware that it had been previously 
described as an Atea (fam. Epeirides) by Koch (loc. cif. sup.) Although in several 
respects a rather anomalous species of Theridion, its wide separation from the family 
Epeirides is very marked both in its structure and habits. 
THERIDION CORACINUM. 
Theridion coracinum, Koch, Die Arachn. Bd. viii. p. 84, pl. 276. fig. 655. 
An adult male of this species (new to Britain) was captured by myself among heath 
near Bloxworth in May 1863. It must not be confounded with a very similar species 
(lately recorded in Wales by Mr. Blackwall), Theridion triste (Koch), from which it is 
easily distinguished by the tarsal and metatarsal joints of the legs: excepting these, the 
whole of 7. coracinum is jet-black; these joints were, in the example recorded, white. 
Koch describes them as ochre-yellow ; but his example was that of the female, mine was 
of the male. | 
LINYPHIA IMPIGRA, n. sp. (PL 55. no. 18.) 
Male adult, length + of an inch (2 lines). 
Relative length of legs 1, 4, 2, 3. | 
Cephalothoraz oval, rather shorter than the abdomen, neither raised nor prominent in 
the ocular region, nor abruptly sloping at the hinder part; clypeus prominent, à con- 
siderable indentation in the median line of the hinder part, marked by a longitudinal 
blackish line slightly dilated in the middle. Sides marked with furrows converging to 
this indentation, and slightly suffused with dusky colour. Colour dark orange-yellow; 2 
few hairs in the ocular region. | 
Eyes eight, in four pairs, moderate in size; all on tubercular black spots. Those of the 
hinder pair widest apart and largest of the eight, those of the front pair almost touching, 
those of the side pairs touch each other, and the hinder one is the smallest of the eight. 
Legs long, tolerably stout, sparingly elothed with short hairs and a few short semi- 
erect black spines. In two individuals the relative lengths of the legs were 1, 4, 2, 3; 
the first, second, and fourth pairs differ but very little in length. Colour clear bright 
orange-yellow. : 
— Palpi short and not very strong, of the same colour as the legs; tibial joint brownish 
and furnished with hairs; it is a little longer, and much stronger, than the cubital, and 
