210 ARANEIDEA. 
3. Sidusa recondita. (Tab. XV. figg. 6, 64,0, ¢; 7, 7 a-d, 2.) 
Sidusa recondita, Peckh. Occas. Papers Nat. Hist. Soc. Wisc. ui. 1, p. 96, t. 7. figg. 6-65 (2) 
(April 1896)’. 
Type, 2, in coll. Peckham ; deuterotype, ¢, in coll. Godman & Salvin. Total length, ¢ 3:5, 2 4 millim. 
¢ Q. Carapace brown, sides involving the lateral eyes and posterior portion much darker, almost black. A 
short central band of white hairs behind the thoracic stria, and a broad postero-lateral marginal band of 
white hairs. Cephalic area covered with pink iridescent scales. Abdomen dark olive-brown, with a broad 
centro-dorsal pale band gradually widening and suddenly dilate behind immediately above the spinners, 
narrowing again to the latter. Down the middle of this band runs a sooty-black band, becoming broken 
up into distinct chevrons towards the spinners. A pale band runs along the antero-lateral margin, 
discontinued in front, suddenly enlarged behind, and running upwards dorsally, about the middle of the 
abdomen ; seen from above, this portion appears as a pair of white spots. Lower lateral area sooty, 
followed by a broad pale band; ventral area sooty. Legs yellow, browner in the mule, with the first 
two pairs darker. 
Palpus of the male with an apical tuft of white hairs on the femur, similar to that of others of the genus, 
but the femur is not produced below ; the patella is as long as the tibia; the bulb is attenuate behind, 
and the apical spine forms a short circular curve. There is a long slender tibial spur. For further 
details, see the Table of species. Vulva of the female characteristic: area broader than long, with two 
pairs of distinct spermathecal spots, one pair larger, adjacent, and transversely situated on the posterior 
margin, the other pair smaller longitudinally, or slightly obliquely situated immediately behind the former, 
the posterior end darker and overlapping. In individual examples the precise form varies a little. 
Tibia i. and protarsus i. with lateral spines on both sides; tibie iii. and iv. with dorsal basal spines. 
Hab. Guatemata (Sarg); Panama, Bugaba (Champion). 
4. Sidusa maxillosa, sp.n. (Tab. XV. figg. 8, 8a-¢, ¢; 9,9 a-e, 2.) 
Type 3, gynetype Q, in coll. Godman & Salvin. Total length, ¢ 6, 2 7 millim. 
dg. Carapace, palpi, and legs entirely brown, the former, including the clypeus, margined with white ; 
legs iii. and iv. paler. Abdomen olive-brown, with an anterior marginal black line, with five or six pale 
chevrons in the apical third. Ventral area pale, with a broad central sooty-black band. Sternum 
entirely yellow. 
9. Carapace, palpi, and legs yellow; carapace suffused on the cephalic area and sides with brown, margined 
as in the male. Abdomen paler, but, as in the male, with anterior marginal dark line and two larger 
anterior dorsal pale chevrons followed by five smaller and more adjacent ones to the spinners. Ventral 
area as in the male, and sternum yellow. 
¢. Patella of the palpus dilate behind the middle of the inner margin. Tibia of palpus with a conspicuous 
concavo-conical spur beneath. Femur of palpus without any spur beneath and without any tuft of white 
hairs at the apex above. Palpal spine stout and spiraloid. Maxille highly developed, dilate, the outer 
margin so deeply emarginate as to leave an outer apical angle hooked and directed backward, and a stout 
conical tooth about the middle. Sternum oval, elongate, almost twice longer than broad. 
Q. Female very like the male generally, but with the maxille not abnormally developed, simply dilate at the 
apex. Fang-grooves with two smaller teeth on the upper, and one large, broad tooth on the lower, margin. 
Vulva very similar to that of S. festiva, consisting of a broad oval area, divided anteriorly into a pair of 
ellipsoidal cavities separated by a narrow septum, with a pair of larger, oval, dark adjacent spermathecal 
spots transversely situate on the posterior margin, and a pair of smaller, oval, brown spots longitudinally 
situate on each side of the septum just in front of but not overlapping the larger spots. 
Hab. Guatemata (Sarg). 
_ One would be inclined to propose a new genus for this species, or at any rate to 
separate it from Sidusa, on account of the very great difference in the form of the 
