FAVILA.—ENRICO. 157 
The abdomen is of an oblong-oval form; deep blackish brown on the upperside, where it is clothed with hairs 
and short bristles. The underside is of a dull brownish-yellow hue, and the spinners paler, 
Hab. Mexico, Amula in Guerrero 6000 feet (H. H. Smith). 
ENRICO *, gen. nov. (Aviculariide, Simon ; subfam. Ctenizine ; 
group Cyrtaucheniee.) 
Nearly allied to Amb/yocarenum, Simon. 
Cephalothorax distinctly longer than broad. Caput convexly raised above the thoracic level, the central 
(thoracic) indentation strong, semicircular, the convexity of the curve directed backwards. 
Eyes in two transverse rows of equal length, enclosing an area nearly three times longer (in its transverse 
measurement) than broad. The anterior row is curved, but not strongly, the convexity of the curve 
directed backwards ; the posterior row more strongly curved, but in an opposite direction. The two fore- 
central eyes are smaller than the laterals of the same row, but the interval between them is rather less 
than that which separates each from the fore-lateral eye on its side; the hind-lateral eyes are separated 
from the fore-laterals by a space equal to that which separates the latter from the fore-centrals. The 
hind-central eyes are the smallest of the eight, and separated from the hind-laterals by a diameter’s 
interval, and each with the fore-central and hind-lateral eye on its side forms a short, slightly curved 
row. 
Legs short, strong, 4, 1, 2,3. Scopula beneath the tarsi and metatarsi of the first and second pairs; four, 
not very strong, spines beneath the metatarsi of the first and second pairs ; tarsi of all four pairs apparently 
devoid of spines; superior terminal tarsal claws with one strong tooth underneath near the base. 
Falces strong, furnished in front along the inner margin towards their extremities with strongish teeth. 
Mazille longer than broad, furnished with bristles, and numerous short blunt teeth along the middle towards 
the inner side. 
Labium very small and short, broader than long ; apex truncate. 
Sternum considerably longer than broad and much narrowest in front; a little behind the middle are two 
long, slightly curved bare spots, whose anterior extremities are strongest and contiguous to each other, 
the two forming a somewhat V-shaped marking. The superior spinners are tapering, neither very long 
nor strong ; the middle joint is longer and stronger than the terminal one. 
Enrico mexicanus, sp. n. 
Adult female, length 12 lines ; length of cephalothorax 44 lines, breadth 34 lines. 
The cephalothorax (which is smooth and glossy) is yellow-brown in colour, the caput darkest; in the 
median line behind the eyes are a few prominent bristly hairs. The height of the clypeus is equal to half 
that of the facial space; the middle of this space forms a whitish-yellow patch, from which five or six 
strong black bristles are directed forwards. 
The falces are similar to the cephalothorax in colour, darkest at the fore extremity. 
The legs are yellow-brownish, with longitudinal stripes bare of hairs, and of a brighter hue on the tibis 
and genua. The genua, tibie#, and metatarsi of the third pair are the most bristly, and strongly spinose ; 
the spines on the two former joints are on the outer side only, those on the genua are most numerous, 
being short, strong, and obtuse. 
The palpi are similar in colour to the legs, furnished with hairs and a few fine spines. The digital joint has 
a scopula beneath it. 
_ The abdomen is oval, subcylindric, of a dull yellow-brown colour, the upperside purplish-brown. It is clothed 
with short hairs, among which, along the middle on the upperside, are some fine black bristly ones. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
* Nom. propr.: a Gothic Ruler. 
