Rainbow — Arachnida 2&5 



JOTUS INSULANUS sp. nov. (L.H.I.) 

 fPl. xxxi, fio-s. 107-10".) 



9 Cephaliithorax, 4 mm. long. 2 7 mm. broad; abdomen, 4 mm. long, 

 - v mm. broad. 



Ce])halothorax somewhat obovate. I^ars cephalica dark l)rown, sur- 

 rounded with golden hairs, hioji. gently arclned. sides stee]). arched, sloping 

 gently forward: ocular area occu])_\iiig nearly entire length of cephalic seg- 

 ment ; clypeus narrow. Pars thoracica well arched, sloping rearwards, spar- 

 ingly clothed with golden-yelknv hairs, central space golden-brown, sides 

 dark brown. Front rcjw nf e}es slightK- recurved: intermediate ])air of 

 anterior mw largest: the pair constituting the second row minute, and very 

 nearly ecpiidistant between first and third rows, indeed they are, if anything, 

 slightly nearer to the latter than the former ; posterior eyes smaller than the 

 anterior laterals. Legs strong, reddish-brown, hairy, spined ; first and second 

 ]\nirs the most robust, and armed with the largest spines: all tarsi yellow. 

 Relative lengths, 4, 1, 2, 3. Palpi moderately long, not strong, similar in 

 colour and clothing to legs: each tarsus furnished with a thick tuft or scopula 

 of long, fine hairs. Falces reddish-l)rown, arched : inferior angle of the furrow 

 of each falx armed with one strong tooth, and the superior with three. 

 ?,faxillae reddish-brown also, apices pale yellow, arched, narrowest at base. 

 Labium concolorous. arched, longer than 1)road, apex gently rounded. Ster- 

 num concolorous also, arched, longer than broad, truncated in front, widest 

 between second pair of coxae, posterior extremity obtuse. Abdomen ovate, 

 slightly overhanging base of cephalothorax, arched, moderately clothed with 

 dark brown hairs : sujjerior surface yellow, with a smokv-brown ])atch at 

 posterior extremity : there are also four small, elliptical, orange-red spots 

 arranged in pairs, one pair of which is seated near the front, and one pair at 

 the middle, the latter being the widest ajiart ; sides concolorous ; inferior 

 surface smoky-brown whh way}- longitudinal markings. Hpigynum a large, 

 slightly raised uneven plarpie with two prominent, black, slightly de]iressed 

 discs at the posterior extremity. 



This species is apparentl}' subject to some variation. Li one example 

 the cephalothorax. legs, and pal]3i are of a much lighter colour than described 

 above, the caput is smoky-brown, and the thoracic segment merely tinged 

 with smoky-brown. The abdomen has a yellow, median band running down 

 the middle, whilst the sides are smoky-ljrown, pencilled with yellow ; the 

 two median pairs of orange-red spots are present as in the typical form. 

 Type, L 11542. 



