FLORINDA.—PHYLLONETHIS. 165 
the granulosities and teeth on the humeral joints of the palpi probably traverse and produce some kind of 
sound or stridulation (so far as I am aware, this peculiar form of stridulating-apparatus has not before 
been noted). At the extremity of each of the falces towards the inner side is a strong somewhat obtuse 
tuberculiform prominence or tooth. 
The abdomen is of a pale dull clay-yellowish colour; it is clothed thinly with hairs, and has a series of strongish 
folds or ridges in the epidermis on each side a little behind the spiracular openings. The four outer 
spinners are two-jointed. 
Hab. Mexico, Cuernavaca in Morelos (H. H. Smith). 
At the extremity of the coxe of the legs, in the middle behind, is a strong tapering, 
but slightly obtuse, toothless prominence; these joints are also very strongly and 
unusually prominent underneath. 
PHYLLONETHIS, Thorell. 
Phyllonethis electa, sp. n. 
Adult female, length 3 lines; adult male, scarcely 2 lines. 
Cephalothorasx, legs, and palpi of the female pale yellow. A more or less distinct tapering black band extends 
from the eyes to the hinder margin of the cephalothorax; the edges of this band are somewhat irregular, 
at times slightly dentated, and in some examples it extends through the ocular area and over the clypeus, in 
one it is divided or somewhat furcate behind the eyes. The sides of the thorax are more or less distinctly 
marked with black converging lines or narrow stripes, The legs in some examples are quite devoid of any 
dark annulations ; in others the extremities of the tibiw of the first and fourth pairs are tinged with brown 
or black; while some have those parts as well as the extremity of the femora in all the legs distinctly 
annulated with black, and there is sometimes also a distinct black spot in the middle on the anterior side 
of the femora. The relative length of the legs is 1, 4,2,3, and they are furnished with hairs, and a few 
slender black mostly erect bristles. 
The eyes are normal; the four central eyes form very nearly a square, with its width slightly less than its 
length. The interval between the hind-central pair is equal to a diameter, and nearly double that 
between each and the hind-lateral eye next to it. The height of the clypeus is greater than half that of 
the facial space. 
The mazille are long, straight, rounded at the extremities, slightly inclined to the labium, and more than 
double its length; their colour is black, margined on the inner edge with yellowish. 
Labium small, black, broader than high, and somewhat semicircular in form. 
Sternum black, somewhat triangular, and longer than broad. 
Abdomen large, short-oval in form; the upper part and sides white; the posterior and middle of the anterior 
parts black, often connected by two longitudinal, converging, more or less distinct, sometimes nearly 
obsolete, black zigzag lines, leaving when tolerably perfect a central longitudinal dentated narrowing 
white stripe, whose hinder portion is prolonged without dentation through the middle of the posterior 
black part to the spinners. Underside black, with an elongate-oval white spot near the middle, and a 
strong triangular prominence rising up each side near the hinder extremity. Spinners short, compact, 
and of a dull yellowish colour. Genital aperture small, but of characteristic form. 
The male is similar in colours and general markings to the female; the abdomen is small and of a subcylindric- 
oval form, and the longitudinal zigzag stripes on the upperside are stronger and more continuous, The 
palpi are moderately long ; the humeral joint has a row of long bristles beneath ; and the cubital joint has 
two long prominent ones on its upperside, one near each end. The digital joint is rather large, and has 
its outer side turned inwards; the palpal organs are directed outwards, these are well-developed and 
rather complex. 
The falces are long, rather divergent, and attenuate at their extremity, where the upperside is rugulose, and 
near their base on the outer side is a pointed somewhat tooth-like prominence. 
Hab. Muxico, Omilteme in Guerrero (H. H. Smith). 
