$34 ARANEIDEA. 
2. Tegenaria flexuosa, sp.n. (Tab. XXXI. figg. 34, 344, ¢ .) 
Type, ¢, in coll. Godman & Salvin. Total length 7 millim. 
Legs yellow, annulated with black. Carapace brown, with a central pale band and broken lateral similarly 
coloured bands. Abdomen rich brown, speckled with pale yellow on the sides, with a central dorsal pale 
bar, broken anteriorly by two pairs of elongate dusky spots, attenuate behind, forming a very slender 
tridentate bar; ventral area with a broad brown central band, margined with pale yellow. Sternum 
brown, with a very small pale spot at the base of the labium and another more elongate one in the centre. 
The coloration of the two immature examples of the female sex is similar, but the dentated portion of the 
abdominal bar is more pronounced, and each of the first three dentations is enlarged at the apex. 
Hab. Mexico, Omilteme in Guerrero (H. H. Smith). 
3. Tegenaria obscura. 
Tegenaria obscura, Banks, Proc. Calif. Acad. Sci. (8) i. p. 280, t. 14. fig. 26 (¢? )’. 
Type, 2, in coll. Calif. Acad. Sci. Total length 6°5 millim. 
Hab. Mexico, Sonoran region, San Miguel de Horcasitas !. 
AGELENOPSIS, 
Agelenopsis, Giebel, Zeitschr. f. ges. Naturwiss. xxxiii. p. 250 (1869). 
Melpomene, O. P.-Cambridge, Biol. Centr.-Amer., Arach. Aran. i. p. 285 (1898). 
Type of Agelenopsis, A. ee Giebel, Illinois, U.S.A.; that of Melpomene, M. elegans, O. P.-Cambr., 
Mexico. 
The spiders which are here referred to Giebel’s genus differ from Agelena (type 
A. labyrinthica) chiefly in the relative proportion of the anterior eyes, the laterals 
being much larger than the centrals, whereas in Agelena they are subequal. Giebel 
gives an illustration of the eye-formula in his diagnosis. 
In the female sex the segments of the posterior pair of spinners are equal in length ; 
in the male the apical one is slightly the longer of the two. 
The species known to me may be recognized as follows :— 
Males. 
A. Tibia of palpus with a strong spur on the outer distal margin, directed 
obliquely outward and backward. 
a. Central lobe of bulb short, inconspicuous, bluntly pointed at the apex. 
Lower anterior prominence of tibia of palpus bifid . .°. . . nova, O. P.-Cambr. 
b. Central lobe of bulb much longer, conspicuous, dilate, hammer-headed 
at the apex. Lower anterior prominence of tibia of palpus bluntly 
pointed, not bifid . ee marginata, sp. n. 
B. Tibia of palpus without any spur on the outer distal margin. 
a’. Palpal bulb, viewed from the outer side, very much inflated, with a 
conspicuous, stout, black, spiraliform process at the apex. Bulb 
deeply bifid at the base on the inner side . . . . . . elegans, O. P.-Cambr. 
b'. Palpal bulb, viewed from the outer side, not inflated ; apex without 
