1909.] NATURAL SCIENCES OF PHILADELPHIA. 199 



not one-half diameter apart and still nearer to the laterals; P k M. E. 

 fully two diameters apart and about as far from the laterals ; legs with 

 long erect hairs, tibiae I and II with 2-2-2 spines beneath, last apical, 

 small; metatarsi with a pair at base; metatarsi and tarsi scopulate 

 on legs I and II. Tibial spur of male palpus similar to that of C. 

 tricuspis, but narrower and somewhat different at tip, as shown in the 

 figure. Length 10 mm. 



From Tablago, Costa Rica (Tristan). 



Clubiona tigrina Cambridge. 



Biol. C. Am. Arachn. Aran., I, 238, 1898. 



San Joaquin Heredia Espinach; Santa Maria Dota; Tiribi; and 

 Escazii. 



Clubiona tumivulva n. sp. 



Cephalothorax bright yellowish, more brownish in front, mandibles 

 yellow-brown; legs and sternum pale yellowish, abdomen gray above, 

 on posterior part with black marks, a median herring-bone mark and 

 some spots on the upper sides, black. Legs I and II with a scopula 

 below tarsi and metatarsi, and on the apical part of tibiae. Vulva 

 with a very broad median tongue, behind this the black area is greatly 

 swollen out. Length 10 mm. 



From Hatillo, Costa Rica (Picado). Differs from C. tigrinus by 

 shape of vulva. 



Chemmis frederici Simon. 



Hist. Nat. Araign. (ed. 2), II, 215, 1898. 



Santa Maria Dota; Tejar de Cartago; San Jose; and Fortuna. 



Chiracanthium ferum Cambridge. 



Biol. C. Am. Arachn. Aran., I, 228, 1897. 



Cartago. 



Pelayo insignis n. sp. 



Cephalothorax yellowish, eye-region black, also the clypeus, extend- 

 ing back on each side a short distance; mandibles black; legs and 

 palpi yellowish; abdomen yellowish, a black stripe on each anterior 

 side, and a median black stripe, forked behind; behind it are two 

 broad black chevrons, and then an apical spot, venter pale, with a 

 broad median band from the lung-slits to the ventral furrow, extended 

 slightly at each apical corner, and then a broad band from the furrow 

 to the spinnerets, extended each side to the spinnerets. Posterior 

 eye-row a trifle recurved, the P. M. E. farther from each other than from 

 the equal P. S. E. Tibia I and II with 2-2-2 spines, last small, apical. 

 Ventral furrow of abdomen much nearer to spinnerets than to base. 

 Length 4.5 mm. 



