288 ARANEIDEA. 
Castianeira lugens, sp. n. 
Adult female, length 23 lines. 
Cephalothoraw black-brown, thinly clothed with white plumose hairs; femora of the legs black, similarly 
clothed, and also with other hairs ; the rest of the legs of first and second pairs pale but clear orange- 
yellow. Genus and tibiw of third pair yellow-brown ; genus, tibie, and metatarsi of fourth pair dark 
yellowish-brown, the tibie: with a yellow annulus clothed with white hairs at each extremity; tarsi and 
metatarsi of third, and tarsi of fourth, pairs yellow. Palpi yellow, the humeral joint black-brown. Two 
pairs of spines beneath each of the metatarsi and tibie of the first pair of legs, and two spines, longitudinally 
placed, beneath the tibize of the second pair, and two pairs beneath the metatarsi of the same. Relative 
length of legs 4, 1, 2, 3. 
Eyes normal ; the two centrals of the posterior row separated by considerably more than a diameter’s interval, 
and further from each other than from the hind-laterals ; anterior side of central quadrangle shorter than 
the posterior. 
Falces similar in colour to the cephalothorax. 
Mawille dark brown, broadly and obliquely whitish-yellow on the inner side. 
Labium dark brown; apex whitish-yellow. 
Sternum black-brown. 
Abdomen oval, well rounded behind, the pedicle connecting it with the cephalothorax very short, making the two 
ordinarily sessile ; colour of upper part and sides black or black-brown ; a transverse pale slightly curved 
bar near the fore extremity, followed by another at the middle traversing the upper part and sides also; 
this is succeeded by three or four others much shorter, diminishing to a mere spot close above the normal 
pale horseshoe bar; this last marking is just above the spinners, and is of a somewhat subquadrate form. 
The above pale markings are clothed with greyish-white plumose hairs. The underside is of a warm 
(slightly reddish) brown colour, covered with grey and other hairs; spinners dark blackish-brown. Genital 
aperture of a characteristically different form from that of the species before described. 
Hab. Mexico, Amula in Guerrero (H. H. Smith). 
MISUMENA, Latreille. 
Runcinia, Cambridge, antea, p. 72. 
Ten species described and figured by me under the genus Runcinia, Simon (antea, 
pp. 72-78, pls. ix., x.), were examined, before description, by M. Simon himself, and 
were stated by him to belong to his genus Runcinia. ‘Trusting to this determination I 
so described them ; subsequently M. Simon (Histoire des Araignées, i. p. 1020) states 
that not one of them belongs to Runcinia, but all to Misumena, Latr. Whether this 
latter opinion is more reliable than the former remains for future investigation. 
Having recently examined examples of the typical Runcinia (Thomisus) lateralis, 
C. Koch, it is clear that the ten species alluded to are not referable to Runcinia, 
Simon, but I hardly think they all belong to Misumena as at present characterized ; 
some of them seem to be near Plancinus, Sim. 
TMARUS, Simon. 
Tmarus jocosus, sp. n. 
Adult female, length slightly over 3 lines ; adult male, length 23 lines. 
General form and structure normal. 
Cephalothoraw as broad as long ; pale dull yellowish-brown, much mottled with white, especially on the sides 
and fore part; dark black-brown on each side of the posterior side of the thorax, the whitish (or dull 
