Séance du 12 Janvier 1921 21 



hairy and nine joints. Assuming that the antennal 

 joints ar(^ nuiuhercd from 1 to 9, N"" 1 being the basal 

 and N" 9 the terminal joint then the antennal formula 

 is 3, 2, 1, 5, 9, 7, G, 8, 4. Tliere is very little dilTerencc 

 between the lengths of the respective joints but the 

 shortest being next to the longest is always well mark- 

 ed. The last three joints of the antennae have one hair 

 stouter than the rest,the relative position of which is the 

 same in each joint — at the anterior end. Legs longer 

 than the antennae with sin.ple tarsi and single claw. 

 The length of the tarsi of tlie hind legs is 1/2 that of 

 the tibia wlhile in the forelegs it is nearly 2/3. At 

 the distal extremity of the tibiae of the hind pair of 

 legs is a group of minute glands containing up to 

 eight glands. There are occasionally also a very few 

 odd ones scattered over the tibiae and femora, never 

 more than four or five, but none on the coxae. Thi* 

 is a good diagnostic character but requires well stain- 

 ed preparations. Mentum long and pointed, basal 

 joint large. Anal lobes poorly developed each bear- 

 ing three hairs, one long, one half as long 

 and one a third as long with a few shorter 

 hairs around and two short stout spines 

 ventrally. Anal orifice with six stout hairs ap- 

 proximately half the length of the caudal setae. Der- 

 mis with many fine hairs and two pairs of stout spi- 

 nes to each segment these being situated marginally. 

 Numerous spinnerets scattered all over the dermis 

 without any apparent grouping. These spinnerets arc 

 of two kinds. 



Leno-th 2 to 3.5 mm. — Bre;id[h .9 lo 2 um;. 



