142 ARANEIDEA. 
6. Spine much less stout, not so spiraloid, nor laminate at its base; 
its terminal convolution lying on a flattened disc of the bulb, 
whose plane is at a right angle to the face-plane of the bulb. 
Tibial spur shorter, concave on the outer side, terminating in 
a slender curving spine (similar in this respect to M. spinosus). volutus, sp. n. 
2. Spine simple at its base, filiform, very short, its terminal convolu- 
tion small and lying in a shallow concavity of the tarsal sheath. 
Tibial spur shorter, broad, slightly tricuspidate, the apex blunt . prosper, O. P.-Cambr. 
B. Apex of spine of bulb lying upon (adpressed) the tarsal sheath, not 
within a concavity. The terminal spine long (much longer than in 
M. brevispinus), springing from the inner side of the bulb at its 
middle point; the terminal convolution larger. Tibial spur 
terminating in a short curving stout spine. . . . . . . . . spinosus, Keys. 
females. 
A. Vulva with a convex hood-like chitinous rim along the anterior margin. 
1. Convex anterior rim much narrower longitudinally, but longer 
transversely, with respect to the abdomen. 
a. Separable only by the form of the vulva (see Tab. X. fig. 1) . . [georgianus, Keys.] 
b. Separable only by the form of the vulva (see Tab. X. fig. 100) . dubius, Keys. 
2. Convex rim much narrower transversely and longer longitudinally. 
a. Vulva with a pair of very large spiraloid fovez, one on each side 
just behind the anterior convex rim . . » + + « « damnosus, Keys. 
. Vulva without large spiraloid fovee, but with the usual pair of 
small ones close to the posterior margin . . . . . « . «© pascalis, O. P.-Cambr. 
B. Vulva without hood-like rim, but with a small rectangular or semi- 
circular chitinous plate anteriorly. . . . . . . « « « « « americanus, Keys. 
Nore.— MM. georgianus (Keys.) has not yet been taken in Central America but will most likely occur there, 
if it indeed be not, as I strongly suspect, the female of M. volutus. A figure of the vulva is given for com- 
parison (Tab. X. fig. 1). 
1. Misumenops spiralis, sp.n. (Tab. X. fig. 2, ¢.) 
Type, d, in coll. Godman & Salvin. Total length 3-5 millim, 
Colour similar to that of M. volutus, but the carapace has two distinct brown bands on each side of the central 
line. Palpus: tarsus broad, tibial spur long and stout, palpal spine stout, ensiform, laminated at the 
base, taking a circular spiraloid curve to its apex. 
Hab. Guatemat.a (Sarg). 
2. Misumenops volutus, sp.n. (Tab. X. fige. 8, 3a, 3.) 
Type, d, in coll. Godman & Salvin. Total length 3-5 millim. 
Carapace, mandibles, palpi, and legs yellow. Apical fourth of tibie i. and ii., apical third of protarsi i. and 
ii., and tarsus suffused with light red-brown. Sides of carapace also red-brown. Abdomen ochre-yellow, 
with cretaceous-white spots. Anterior half of the central dorsal area suffused with umber-brown, 
followed to the spinners by a pair of narrow broken brown bars, converging distally. These bands are 
composed of a number (6 or 7) of irregular spots, each with a pale oval pearl-like dot in the middle. 
