EURYOPIS.—EPISINUS. 109 
Mawille rather strong, somewhat pointed, and almost meeting over the labiwm, which is of a quadrangular 
form, pointed at the apex. These parts are yellowish-brown, suffused with blackish. 
Sternum short, broad heart-shaped, indented in front, similar in colour to the labium. 
Abdomen rather large, heart-shaped (indented in front), or somewhat triangular with the anterior corners 
rounded off. It projects considerably over the base of the cephalothorax. The upperside is of a shining 
silvery-white, the fore margin and sides dull black; at the anterior part of the silvery upperside is a 
large subtriangular dull black marking, its apex sharp and directed backwards, its sides somewhat crenated, 
and its base (in front) much curved—this marking, in fact, is very nearly of a similar shape to that of 
the abdomen. The upperside and sides of the abdomen are furnished thinly with coarse prominent dark 
bristles. The underside is dull yellowish-brown, mottled with small silvery markings and black fine 
strie, except a large central portion, from the fore part to the spinners, which is black-brown, with a 
small silvery patch just behind the genital aperture, and two other larger ones, one on each side a little 
way from the spinners. The genital aperture is of a red-brown hue and nearly circular. The spinners 
are small, short, prominent ; they are of yellow-brown colour ; the inferior pair largest. 
Hab. Guatemata (Sarq). 
This exceedingly pretty spider is nearly allied to Huryopis funebris, Hentz, sub 
Theridion (also figured and described by Keyserling in ‘ Spinnen Amerikas: Theridiide,.’ 
ii. Halfte, zweiter Bd., p. 49, t. 12. fig. 161), and to HE. taczanowzkii, Keys. (op. cit. p. 47, 
t. 12. fig. 160); but may easily be distinguished by the different pattern on the 
abdomen, and the strikingly different markings on the legs. The genital aperture also 
is of a different form. 
EPISINUS, Walckenaer. 
Episinus cognatus, sp. n. 
Adult male, length 2 lines. 
The cephalothorax, legs, palpi, maxille, labium, and sternum are of a dull yellow hue. The cephalothorax is 
clothed thinly with coarse greyish hairs, and is deeply indented longitudinally at the thoracic junction. 
It is marked with a central longitudinal black line, bifid at its anterior extremity behind the eyes, and has 
also some broken blackish markings on the sides of the thorax. The ocular region is a little raised; and 
the clypeus is prominent, its height appearing to be about half that of the facial space. 
The eyes are of moderate size, and placed on tubercles in the normal position ; the interval between the hind- 
central pair is greater than that between each and the hind-lateral eye next to it. 
The legs are very long, 1, 4, 2, 3, slender; furnished pretty thickly with coarse hairs, and with a few bristle- 
like spines on their tibial and genual joints ; their colour is dull yellow, with the anterior portion of the 
tibiee slightly suffused with yellow-brown. 
The palpi are long, slender, and furnished with coarse bristly hairs; the humeral, cubital, and radial joints 
are somewhat clavate, or gradually incrassated at the fore extremities; the radial is a little shorter than 
the cubital joint, the former somewhat pointed at its fore extremity above. The digital joint is of a 
rather narrow or oblong-ova] form ; and the palpal organs are tolerably compact, but complex, with 
various spiny processes. 
The falces are moderately long, not very powerful, and project forwards. 
The mawille are of tolerable length, somewhat bent and inclined towards the labium, and slightly obliquely 
truncated at their extremity. 
The labiwm is short, less than half the length of the maxille, and truncated at its apex. 
The sternum is heart-shaped, dull yellowish slightly suffused with brown. 
The abdomen is oval, truncate before, slightly subangularly prominent on each side towards the hinder part ; 
and its posterior extremity is rather drawn out into a somewhat subcaudal form, showing plainly on the 
upperside by its transverse lines the pristine segmentation of that part. The abdomen is of a dull pale 
drab colour, marked on the upper part and sides (but not giving any very distinct: pattern) with black 
spots and small markings, and with also a few white obscure spots; on the upperside are a few coarse 
