OLIOS. _ | 69 
spinners is a series of angular red-brown markings, or connected chevrons, the spaces between them being 
paler than the ground-colour, and so forming of themselves a longitudinal series of pale chevrons, The 
sides of the abdomen are marked indistinctly with broken blackish lines and scratchy marks. Spinners 
short, compact, and of a yellow colour. The underside is slightly suffused with dusky brown, bounded 
_ on each side by a pale longitudinal line. The genital aperture is inconspicuous but characteristic. 
The male resembles the female in general characters, colours, and markings; but its legs are longer and more 
slender, and its eyes larger. The radial joint of the palpus is longer than the cubital, and is greatly 
enlarged at its fore extremity, where its outer side is produced into a large apophysis, larger than the 
joint, enlarged and obtuse at its extremity, which ends off suddenly in a ‘small point directed down- 
wards. (Nothing, however, except figures, could give a correct idea of its exact form.) The digital joint 
is very large, elongate oval, longer than the femoral and cubital joints together, and has a somewhat 
truncated prominence at its hinder extremity (or base). The palpal organs are highly developed, though 
not very complex; a strong curved process surrounds their posterior portion, and running round the inner 
margin fines off into a slender point beneath the fore extremity of the joint. 
Had. GuatemaLa, Cahabon and Petexbatun (Sarg). 
Olios Sagus, sp. n. 
Adult female, length 5 lines. 
The cephalothorax is a little longer than broad; caput broad, squarely truncated in front ; lateral marginal 
indentations strong ; colour dull orange-yellowish; clothed with pale hairs, and with some prominent 
bristles on the caput; the normal indentations are indicated by broken black-brown lines, and there are 
also some other irregular lines on the caput. 
The eyes are on black spots; the posterior row is straight, the interval between those of the central pair 
greater than that between each and the adjacent lateral; the anterior row is curved, the convexity of 
the curve directed forwards. The fore central eyes are rather the largest and are seated on a slight 
prominence; the interval between them is rather larger than that between each and the lateral eye next 
to it. The four central eyes form a trapezoid whose posterior side is rather the longest. The height of 
the clypeus is slightly less than the diameter of one of the fore central eyes. 
The legs are moderately long and strong, 2, 1, 4, 3, similar to the cephalothorax in colour, clothed with pale 
hairs, and thickly speckled with small reddish- brown spots. Spines long and tolerably strong, a broad 
scopula beneath the tarsi and metatarsi, and a claw-tuft. 
The palpi are similar to the legs in colour and armature. The digital joint is the darkest and densely clothed 
with brown hairs. 
The falces are rather short, but massive, projecting, strongly prominent in front; rather richer coloured than 
the cephalothorax, and marked in front with a longitudinal black tapering stripe or line. 
The maxille and labiwm are normal in form, and similar to the cephalothorax in colour. 
The abdomen is oval, of a dull brownish-yellow hue. The normal dorsal marking is yellow, margined with a 
broken dark red-brown line, and a short oblique yellow stripe issues each side towards its hinder 
extremity. The dorsal marking is followed to the spinners by a series of pale angular markings or 
chevrons, within the apex of each of which is a red-brown angular spot, forming a longitudinal series 
reaching quite to the spinners. The sides are marked with indistinct brown lines and spots. The under- 
side has a broad, longitudinal, central dark brown band margined with a yellowish line, and two indistinct 
parallel yellowish lines near together along the middle. The genital aperture is moderately large and of 
characteristic form. Spinners short, compact. 
Hab. Guaremats, Petexbatun (Sarg). 
Olios exasperans, sp. n. - 
Adult female, length 63 lines. 
The cephalothorax is very slightly, if at all, longer than broad; caput broad, slightly eurvo-truncate anteriorly ; 
lateral marginal indentations slight ; colour. dull orange-yellow ; the normal grooves indicated by dusky 
