324 ARANEIDEA. 
a’. Vulval area as long as broad. Cross-piece of central 
L-shaped process distinctly longer than the stem. . . ¢ransversa, sp. n. 
6°. Vulval area a little longer than broad. Cross-piece of 
central L-shaped process not longer than the stem . . ventralis. 
6%. Vulval area much longer than broad. Stem of central 
L-shaped process considerably longer than the cross-piece .  lengivulva, sp. n. 
b. Ventral area black, but divided fongitudinally by one or more pale 
lines. 
a’. Ventral area with a pale, wedge-shaped, central band, having 
a dark narrow band on each side. Vulval cavity much 
broader, as broad. on each side as the stem of the central 
1-shaped process; the latter dilate, but angular just before 
the middle. . . . 2... we ee we ee ee. Lativulva, sp. 2. 
b°*. Ventral area with a narrow, dusky, central band, reaching two- 
thirds to the spinners, surrounded by a pale area. Vulval 
cavity not -so wide, much narrower on each side than the 
stem of the central L-shaped process; the latter broadly and 
circularly dilate in the middle . . . . ~ . 6 + . adilatata. 
II. Ventral area of abdomen unicolorous yellow or yellow- brown, or simply 
spotted with brown. 
i, Ventral area unicolorous yellow or yellow-brown. 
a’. Leg iv. shorter in proportion ; protarsus iv. shorter than the cara- 
pace. Vulval area as broad as, or broader than, long. 
1*, Vulval area as broad as long. Central L-shaped process much 
broader at the junction of the stem and cross-piece, gradually 
but broadly dilate to the base. Central pale band on carapace . 
narrowed to the ocular area, terminating in’a point . . . . brevitarsis. 
. Vulval area broader than long. Central L-shaped process much 
narrower, or constricted, at the junction of the stem and cross- 
piece, abruptly and broadly dilate to the base. Central pale 
band on carapace not narrowed but dilate behind the posterior 
eyes and occupying the whole ocular area . . . . . ) . .~ constricta. 
b*. Leg iv. longer in proportion; protarsus iv. longer than the cara- 
pace. Vulval area longer than broad. Central L-shaped process 
much longer and narrower in the stem, almost parallel-sided . . longitarsis. 
ii. Ventral area ferruginous, but speckled with brown . . . . . . guttatula, sp. n. 
1. Lycosa insignis. (Tab. XXXI. fige. 9, 9a, 3.) 
Trochosa insignis, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 272, t. 38. figg. 7, 7 a-e 
(3)’. 
Type, ¢, in coll. Godman & Salvin. Total length 16 millim. 
Hab. Costa Rica, San José (Tristan & Biolley +). 
‘This spider is in all probability the male of ZL. scutu/ata, Hentz, if one may judge 
from a female thus labelled by Emerton in the British Museum. 
