DELOZEUGMA.—FILISTATA. 183 
five or six pairs of spots representing the normal angular bars or chevrons; the sides are suffused with 
dusky-brown. Spinners rather short, about equal in length, compact, those of the inferior pair strongest, 
tapering, and contiguous, the superior pair excavated or hollow on the inner side (though this may have 
been from an accidental shrinkage, but the condition of the others and the rest of the abdomen showed 
no corresponding signs of anything abnormal). Colulus small, tapering, but obtuse at its extremity. 
Hab, Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 
N.B.—A “triangular prominence immediately below the spinners” of Delozeugma 
depictum, noted anted, p. 146, is no doubt the portion of structure named by M. Simon 
the colulus ; but its purpose is not yet known. 
FILISTATA, Walckenaer. 
Filistata tractans, sp. n. 
Adult male, length slightly over 34 lines. 
Cephalothorax flattened, broad-oval, obtuse at each end; anterior margin very slightly prominent in the 
middle ; thoracic indentation longitudinal and strong. It is yellow-brown in colour, with scratchy black 
markings, and clothed with coarse, adpressed, whitish hairs; the margins and a tapering stripe from the 
eyes to the thoracic indentation are blackish-brown. 
Eyes in normal position, on a strong transverse, oval, tubercular prominence. They form a quadrangle 
considerably broader than long; looked at from above and behind, the anterior row, which is slightly the 
shortest, has the convexity ofits strongest curve directed backwards ; the curve of the posterior row is very 
slight and directed forwards. The fore-centrals almost touch the fore-laterals, and the former are rather 
less than half a diameter’s interval from the latter. The interval between the hind-centrals is equal to 
two diameters, and each is contiguous to the hind-lateral eye on its side. The interval between the eyes 
of each lateral pair is about equal to one-third of a diameter, these eyes being very nearly of equal size 
and largest of the eight. 
Legs long, moderately strong, 4, 1, 2, 3, similar in colour to the cephalothorax; all the femora are suffused 
with a darker hue, and clothed with hairs and a few spines, the most noteworthy being some in two 
longitudinal rows in front of the femora. 
Palpi very long, rather slender ; cubital joint very short, radial of great length, equal to that of the whole of 
the rest of the palpus, nearly cylindric, similar to the legs in colour, destitute of spines, excepting some 
of a bristle-like nature in front of the base of the humeral joint; digital joint very small; palpal bulb 
marked with several parallel transverse striations springing from its fore extremity, small, some- 
what circular, but produced forwards into a gradually tapering fine-pointed spine, slightly bent about 
the middle, but not twisted. The length of the bulb and its prolongation exceeds that of the digital 
joint. 
a mawille, and labiwm of normal form; similar to the legs in colour, and clothed with coarse hairs. 
Sternum nearly round, its posterior extremity slightly pointed, similar to the cephalothorax in colour and 
with black scratchy markings. 
Abdomen small, elongate-oval, somewhat cylindric, produced in a bluff rounded form a little way over the 
spinners ; it is of a dark yellow-brown colour, thickly clothed with short, coarse, yellow-brown hairs, and 
marked from the fore margin nearly to the hinder extremity with a fine central longitudinal clear yellowish 
line; on the middle of the underside or, rather, halfway between the normal breathing-organs and the 
spinners is a slit or transverse strong fold in the epidermis, evidently the orifice of a spiracular organ, 
Spinners short, in a tolerably compact group within a circular cavity fringed with short coarse hairs. 
The cribellum is very small and inconspicuous, 
Hab. Mzxico, Amula in Guerrero (H. H, Smith). 
