200 rev. o. p. Cambridge on two [Mar. 18, 



The legs are, as described in the generic diagnosis, strong and 

 minutely tuberculose, the tibise being of a peculiar bent form. 



Two examples were found by Mr. Forbes, one in Java, the other in 

 Sumatra. 



Ornithoscatoides tuberosa. (Plate XT. fig. 2.) 



Thomisus tuberosus, Bl. Ann. & Mag. Nat. Hist. ser. 3, vol. xiv. 

 p. 38. 



Adult female, length 5 lines. 



This Spider, although very similar in general form and appear- 

 ance to O. decipiens, is smaller, and differs in colours and also in the 

 number and disposition of the abdominal tubercles. 



The abdomen is of a pale olive-brown colour on the upper side ; 

 six elongated black markings, three on each side, of different sizes, 

 are continued laterally to the underpart of the abdomen ; the 

 hinder pair of these markings meet at the middle of the upper side, 

 where are two shining dark-brown conical tubercles. The rest of 

 the tubercles, which are much more numerous than in O. decipiens 

 and vary a little in size, are very similar to the surrounding surface 

 in colour, perhaps a little more of a yellow-brown hue, and all of 

 a conical form ; they are somewhat symmetricallj' disposed towards 

 the sides and at the hinder part of the abdomen. The underside is 

 black, largely patched with cream-colour. 



The cephahthorax is yellow-brown and slightly tuberculose, and 

 the height of the clypeus rather exceeds half that of the facial space. 



The legs are cream-colour, marked with yellow-brown, excepting 

 the anterior half of the tibise, the metatarsi, and anterior portion of 

 the tarsi, which are black-brown. Besides other spines, there are 

 numerous long strong ones on the tibise and metatarsi of the first 

 and second pairs. There are also the same spines on the upper side 

 of the femora as those whose peculiar function Mr. Forbes has noted 

 in the Sumatran and Javan species. The first two pairs of legs are 

 much longer and stronger than the rest, but they appear to be 

 proportionately shorter than those of O. decipiens, as in that species 

 the tibise are bent, but not to so great an extent. 



The eyes do not appear to differ much in relative size and 

 position from those of O. decipiens. 



The palpi are yellow-brown, all except the digital joints more 

 or less suffused with cream-colour ; they terminate with a siugle 

 curved pectinated claw. 



The fakes are short, strong, subconical, vertical, yellow-brown, 

 with a whitish spot in front towards their base. 



The maxillce and labium are yellow-brown, and though shorter 

 are of the same form as those of O. decipiens. 



Mr. Blackwall in his description (evidently by some inadver- 

 tence) describes the labium as triangular. 



The sternum is dark brown, and can scarcely be described as, 

 according to Mr. Blackwall, heart-shaped, but of a rather elongate- 

 oval form slightly pointed behind and hollow -truncate before. 



