SIMONELLA. 171 
one cannot say, but it is possible these are two different species. In the description 
of the mandibles no mention is made of the anterior basal cusp, most noticeable in the 
example here noted as S. bicolor, 3. 
2. Simonella decipiens. (Tab. XII. figg. 3, 3a-c, ¢; 4,44, 2.) 
Simonella decipiens, O. P.-Cambr. Biol, Centr.-Amer., Arachn. Aran. i. p. 163, t. 19. figg. 15, 
15 a-c (¢), 16, 16a,5(2)’. 
Type ¢, gynetype @, in coll. Godman & Salvin. Total length, ¢ 5, 9 5°75 millim. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith '). 
The Aculeate-Hymenopteron (Pseudomyrma sp.), orange, with black head, which 
was taken from the bushes where this spider was captured, was sent also in the same 
tube. The resemblance is complete, though of what precise significance it is difficult 
to suggest, except on the supposition that it wards off the attack of birds and wasps. 
3. Simonella bicolor. (Tab. XII. figg. 1, la-d, 3; 2, 2a-d, 2.) 
Simonella bicolor, Peckh. Occas. Papers Nat. Hist. Soc. Wisc. ii. 1, p. 88, t. 7. figg. 5, 5 @ (1892) 
(2)*. 
Type, @, in coll. Eugéne Simon: total length 6:8 millim. Deuterotype, g, in coll. Godman & Salvin: total 
length 7°5 millim. 
Hab. Panama, Bugaba (Champion).—V ENEZUELA 1. 
The male is new to science, that is, if it is distinct from that of S. americana, Peckh., 
which I cannot doubt on the evidence before me. It is possible that Mr. Peckham has 
placed the males of both species together, for the palpi are evidently very similar, 
though the black caput, if constant, as I suspect it is, which would assimilate 
S. bicolor with a different species of Formicide, should enable them to be separated. 
Group TOXEA. 
The members belonging to this group are very numerous and distinct, of which a 
typical form (though not the type of the genus Toreus) would be Toxeus formicarius, 
a well-known European species. The eyes are in three rows of 4—2—2,; the carapace 
being, not constricted as in the Simonelleew, but more or less raised in the cephalic 
region. The abdomen is in Toreus distinctly constricted in the middle, but much less 
so than in Simonella. The coxa of the first pair of legs is longer, or not shorter, than 
that of the fourth pair, while trochanter iv. is quite short. Legs i. and il. are not 
incrassate, all of them being of about the same degree of slenderness, their relative 
length being 4, 1, 3, 2. 
The genera known to me may be separated by the following characters, based on 
the female sex only :— 
zt 2 
