122 ARANEIDBA. .. ‘ 
thickly impressed with minute punctures, and thinly clothed with short fine hairs. Looked at in profile, 
the cephalothorax slopes forward in a uniform curved line from the hinder slope to the eyes. 
Eyes very unequal in size, forming a transverse quadrangle on the whole upper surface of the caput, the 
width of the quadrangle nearly equalling double its length (from back to front). The fore-central pair of 
enormous (comparative) size, almost contiguous; those of the second row nearer to the fore-laterals than 
to the hind-laterals and very minute. 
Legs short, strong, bright orange-yellow, except the femora, which are tinged with brown, furnished with 
hairs and destitute of spines. Their relative length is very difficult to note, 4, 3, 1, 2 or 4, 1, 3, 2, but 
they appear to differ very little. 
Palpi short, dark yellowish-brown, the digital joint furnished with pale greyish hairs; cubital and radial 
joints very short, but of about equal length; the latter is the strongest and has a small pointed apophysis 
at its extremity on the outer side. Digital joint rather small, of narrow-oval form ; palpal organs simple, 
but well developed and rather prominent. 
Falces rather small, straight, vertical, almost concealed beneath the clypeus, and of a dark brown hue. 
Mazxille short, broad at the extremities; colour brown, paler at the extremities. 
Labium short, pointed at the apex, brown, the apex paler. 
Sternum small, oval, deep black-brown. 
Abdomen covered on the upperside with a large, nearly circular, convex, shield-like coriaceous epidermis, of 
a shining deep steel-blue colour, slightly purple in some lights: impressed with very minute scattered 
punctures, and clothed thinly with very short fine hairs. It is somewhat curvitruncate before, and fits up 
close over the hinder slope of the cephalothorax, so as to continue the upper convexity of the latter with 
an even and opposite curve in an unbroken line to the posterior extremity, looking like a single piece. 
The underside is brown and rugose, with yellowish markings. The spinners are short, compact, of a 
brownish hue; concealed beneath the upper covering of the abdomen, until turned upside down. 
The female resembles the male in form, colours, and general characters. 
Hab. Panama, Bugaba (Champion). 
This curious little Salticid might well be mistaken for a minute beetle or hemipteron. 
It would be interesting to know whether it has any powers of leaping; the almost 
uniform length of the legs gives an idea that it is not a jumper. 
OCHYROCERA, Simon * (Dysderidez). 
Ochyrocera simoni, sp. n. 
Adult male, length 17 lines. 
Cephalothorax short, oval, rather flattened, convex above, very strongly constricted laterally on the margins at 
the junction of the caput and thorax, the anterior extremity broadly truncate. Clypeus strongly 
porrected, and nearly equal in longitudinal extent to the length of the falces, the thorax and upper part 
of the caput being nearly circular. It has a few long bristles on the caput and thorax, and its colour is 
a clear pale green, with a broad central black band extending through the ocular area to the hinder 
extremity, to which it gradually widens from the eyes. A similar broad black band also occupies each 
side of the thorax, gradually coming to a point at the junction with the falces. 
The eyes are in three pairs on tubercles, forming a transverse straight line (at least the three groups are in a 
straight line); the central pair are in a transverse line, and those of each lateral pair are nearly contiguous 
and placed obliquely, so that the centrals taken with either the anterior or posterior eyes of the lateral 
pairs singly form in reality a curved line (the curve formed by the centrals and fore-laterals being 
less than that of the centrals and hind-laterals), The eyes of the central pair are very nearly contiguous 
to each other, and each is nearly a diameter’s distance from the fore-lateral on its side. 
The legs are very long, 1, 4, 2, 3, slender, furnished with hairs only. ‘The coxa of the first and second pairs, 
* P. ZS. 1891, p. 565. 
