SCOLODERUS.—MEMNON. 283 
hinder extremity directed outwards. Palpal organs well developed, rather prominent, but not very 
complex. In other respects the male does not differ notably from the female; the legs, however, are 
of a less bright and rich hue, and the underside of the abdomen is suffused with dark brown, and its 
fore corners above are a little more decidedly prominent. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith: 2); Panama, Bugaba (Cham- 
pion: 3). 
MEMNON *, gen. nov. (fam. Drasside ; subfam. Anypheenine). 
Nearly allied to Wulfila, Cambr. (antea, p. 158). 
Cephalothorax broader than long, but not greatly so, broadly truncated in front; lateral marginal impressions 
at the caput slight ; upper convexity moderate ; thoracic indentation shown by a red-brown line. 
Eyes of tolerable size; posterior row moderately curved, the convexity of the curve directed backwards. Eyes 
of the posterior row of equal size and equally separated; those of the anterior row (which is much the 
shortest) of unequal size, the central pair being no more than half the size of the laterals, which are the 
largest of the eight. Anterior row also slightly curved, its convexity directed forwards. The fore-centrals 
are further from each other than from the fore-laterals, being, however, less than a diameter’s interval apart. 
The fore-laterals are rather less than a diameter from the hind-laterals. The line formed by the hind- 
centrals is equal to that formed by each of them and the fore-central opposite to it. The height of the 
elypeus is scarcely equal to the diameter of one of the fore-central eyes; central quadrangle equal in 
length and posterior breadth, but the anterior side much the shortest. 
Legs moderate in length and strength, 4,1, 2,3; 1 and 4 almost equal. Spines rather long, moderately 
strong; a thin scopula beneath the tarsi and fore part of the metatarsi of the first and second pairs. 
Claw-tuft beneath the two terminal claws. 
Falces strong, straight, rather long, projecting forwards, slightly divergent, furnished near the extremity 
(rather beneath the inner edge) with numerous strong sharply-curved bristles of an almost spinous 
character. 
Mawxille long, strong, straight, three parts as long as the sternum, broadest at the extremities, where they are 
rounded on the outer end and obliquely truncated on the inner side. 
Sternum oval, much longer than broad. 
Labium more than half the length of the maxille, oblong; marginal lines rather curved; apex truncate, but 
slightly hollowed in the middle. 
Abdomen oval, pointed behind and round-pointed before. The transverse spiracular opening underneath 
is rather conspicuous, semicircular, and placed halfway between the middle and the genital aperture, 
which is of very characteristic form. Spinners short, compact, the superior and inferior pairs of equal 
or nearly equal length. 
Memnon peragrans, sp. n. 
Adult female, length 4 lines. 
Cephalothorax orange-yellow, clothed with short grey and other hairs; ocular region strongly suffused with 
deep red-brown; a longitudinal band of red-brown on each side running backwards from the outer 
ends of the ocular area and curving at the hinder extremities, where they nearly unite. 
Legs orange-yellow, rather lighter in hue than the cephalothorax; broadly and distinctly, but not closely, 
annulated with dark red-brown. 
Falces deep shining rich brown, marked on their fore sides obscurely ‘with two longitudinal lines of a 
deeper hue. 
Mawille dull orange-yellow on their outer sides, but browner on the inner. 
Labiwm dark yellow-brown. 
Sternum orange-yellow, with a broad, central, longitudinal, deep reddish-brown band, slightly or bluntly 
* Nom. propr. 
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