DAM^gS CLAVIPES. 427 



they are extremely thin, the tarsi in particular being 

 wonderfully fine and slightly undulated in outline ; 

 they are thickened near the proximal end. The claw is 

 large and strong. 



Abdomen. — There are four longitudinal rows of 

 large papillae along the notogaster ; of these the two 

 central are considerably the largest. They arise from 

 the strongly arched surface and therefore stand above 

 the lateral rows of papillae, which are also smaller; 

 there are about five in each of the central and about 

 four in each lateral row. There are also four large 

 papillae at the hind margin, an outer and upper pair 

 and an inner and lower pair. On the ventral surface 

 the posterior part of the abdomen is rounded so as to 

 give an almost hemispherical outline. 



The hairs are very long and strong, all quite black, 

 and almost all slightly serrated. A very strong hair 

 arises from each of the above-mentioned papillae, the 

 largest being those arising from the papillae of the two 

 central rows. Of these hairs the first pair curve for- 

 ward; the second, which are the longest and reach twice 

 as high above the body as the thickness of the latter, 

 stand nearly upright for two-thirds of their length and 

 then curve backwards ; the other pairs are of the same 

 shape but gradually diminish in length. The hairs 

 springing from the four anal papillae are very long, 

 those on the upper and outer pairs being twice as long 

 as the body and very flexible ; those on the inferior 

 papillae are shorter, although still very long, and are 

 straighter and stiffer. The tactile hairs on the front 

 tibiae are very long. There are a series of short curved 

 hairs down the inside of each tarsus, whorls of hairs 

 of medium length on the third and fourth joints, a 

 strong spine on each femur; a very strong hair or 

 spine on the upper part of the tarsus of the third pair, 

 one, not so large, in the same position on the other legs ; 

 and numerous other less important hairs on the legs. 



