58 ARANEIDEA. 
3. Prosthesima mexicana. | 
Prosthesima mexicana, Banks, Proc. Calif. Acad. Sci. (3) 1. p. 217, t. 18. fig. 18 (2) - 
@. Length 6-8 millim. 
Hab. Mexico, Mexico city and Orizaba (Banks). 
4. Prosthesima fidelis. 
Prosthesima fidelis, Banks, loc. cit. p. 219, t. 13. fig. 19 (@)* 
©. Length 3-6 millim. 
Hab. Mexico, Minatitlan (Banks 3). 
5. Prosthesima indecisa. 
Prosthesima indecisa, Banks, loc. cit. p. 220, t. 13. fig. 20 (d)'. 
é. Length 7 millim. 
Hab. Mexico, San Miguel de Horcasitas (Banks '). 
SCOTOPH AUS. 
Scotopheus, E. Simon, Hist. Nat. Araign. éd. 2, i. p. 3871 (1893). 
Type S. guadripunctatus (Linn.). 
This genus is abundantly represented in Europe, and in England by the single 
species S. blackwalli (Thor.). There are two species from Central America, both new, 
which may be distinguished, in addition to the characters furnished by the vulva, by 
the following :— 
A. Size much larger: length 16 millim. Central posterior eyes two 
diameters apart, at least four diameters from the laterals. Abdomen 
unicolorous brown above ee ie ees ey 
B. Size much smaller: length 8°5 millim. Central posterior eyes one 
and a half diameters apart, two diameters from the laterals. Abdo- 
men black, with central dorsal pale band, broken up transversely 
towards the spinners . 
guatemalensis, sp. n. 
pictus, sp. n. 
1. Scotophzus guatemalensis, sp. n. (Tab. V. fig. 1, 9.) 
Type, @, in coll. Godman & Salvin. 
Q. Total length 16 millim. 
Legs, carapace, and sternum mahogany-brown, clothed with a dense grey pubescence and fine grey hairs. 
Abdomen clothed with dense ochre-grey pubescence. Tibiei. and ii. with 2—2—1 spines beneath, the first pair 
being apical. Protarsus i. and ii. with a pair of spines at the base. Vulva very simple, consisting of a 
short tongue-like prominence, followed by a deep groove, dilate at first, narrowing in the centre, again 
dilate at the genital rima, which divides the vulva into two rounded chitinous lobes. (Tab, V. fig. 1.) 
Hab. GuatEMata (Sarg). 
A single adult female. 
