CYCLOSA.—CYRTARACHNE. 113 
The legs are moderate in length and strength, 1, 4, 2,3; the coxal, exinguinal, femoral, and genual joints 
are similar to the cephalothorax in colour; the tibis, metatarsi, and tarsi blackish-brown, more or less 
faintly annulated with yellowish. They are furnished with hairs and a few spines, the strongest and 
most numerous of which are on the tibiz of the second pair. 
The falces are moderate in strength, inclined towards the maxillx and labium, and (with those parts) are of an 
orange-yellow hue. 
The sternum is heart-shaped, orange-yellow, suffused with blackish. 
The palpi are short, of a pale yellow colour ; the digital joints brownish-yellow. The cubital and radial joints 
are very short; the former has on its upperside a single, not very strong, curved, tapering bristle, and the 
latter is much dilated at its anterior extremity. The palpal bulb is rather large, and the palpal organs 
are complex, with strong spiny processes. 
The abdomen is oval, and almost as deep as it is broad, with the upper part of the hinder extremity somewhat 
bluntly or subangularly produced, though when looked at in profile the produced part projects very little 
beyond the spinners. It is of a dull yellowish colour, with a longitudinal laterally angulated band, defined 
by a dusky blackish marginal border along the upperside, and with obscure whitish spots in the angles 
of the band. The sides are marked with an irregular blackish patch and short linear spots. The spinners 
are surrounded by a blackish area whose margin is dentated, and from this a broad yellow-brown band 
runs forwards to the fore extremity, and has a black spot on each side towards the spinners. 
Hab. Mexico, Sierra de las Aguas Escondidas, near Omilteme, in Guerrero, at an 
altitude of 9500 feet (H. H. Smith). 
It is most probable that the intensity and distinctness of the colours and pattern of 
the abdomen would be found to vary considerably in a series of this species. 
CYRTARACHNE, Thorell. 
Cyrtarachne dugesi, sp. n. 
Adult female, length 7 lines ; length of cephalothorax 24 lines ; height of abdomen vertically from epigyne to 
highest point rather over 5 lines. 
Cephalothorax rather longer than broad; caput large, broad in front, strongly gibbous above near the occiput ; 
thoracic indentation large and deep. It is yellow-brown in colour, deep yellow-brown on the sides and 
at the thoracic indentation’; clothed with short grey hairs, some of which, whiter than the rest, form a 
marginal line, and other white lines connect the eye-prominences and mark the junction of the caput 
and thorax, as well as the occipital region. 
Eyes on three prominences, the central prominence of moderate strength, bearing the four central eyes, and a 
lateral prominence on each side, each bearing a lateral pair, and proportionally stronger than the central 
prominence. The eyes are small, and do not differ much in size. The four centrals form a small square 
whose anterior side is slightly shorter than the other sides. The lateral pairs are on the sides of the 
lateral prominences, and those of each lateral pair are very near but not quite contiguous to each other. 
The clypeus is very retreating, owing to the projection of the central eye-prominence, and its height is 
considerably less than half that of the facial space. 
Legs short, moderately strong, 1, 4, 2,3; 1 and 4 being very nearly equal in length. They are of a dull 
yellow colour, faintly annulated with yellow-brown ; clothed with short greyish hairs, and armed with 
short, not very strong spines, 
Palpi short, similar in colour and armature to the legs. 
The falces are powerful, moderately long, very convex or prominent in front, of a clearer yellow-brown colour 
than the cephalothorax, and furnished with short grey hairs. 
Mawille very short, rather broad, truncated at the extremity (which is whitish, the rest being yellow-brown), 
and inclined over the labium; this part is also very short. The apex is somewhat obtusely subangular. 
The colour of the labium is deep yellowish-brown. 
The sternum is heart-shaped, yellowish, with yellow-brown blotches opposite the insertion of the legs, and 
clothed with coarse grey hairs. 
BIOL. CENTR.-AMER., Arachn. Aran., September 1893. at 
