ARKIV FÖR ZOOLOGI. BAND 2. NlO 19. 



Fam. Aviculariidae. 



Diplothelopsis n. g. 



The most principal characteristic of this new genus is the 

 reduced number of mamillse. As by the genus of the group 

 Diplotheleae and by Anisaspis this form has only two mamillöe. 

 There is no trace of the inferior ones and by that reason I 

 thought at first that it was a species of Diplothele. But an 

 exact examination has easily shown that the species is not 

 to be referred to this genus nor to another of the genus of 

 this group. And the differences are aso great that I suspect 

 that it perhaps belongs to another subfamily. 



The anterior tarsi furnished with distinct tufts of scopu- 

 Hform hairs of about the same length as the claws. On the 

 posterior tarsi these tufts consist of more or less spiniformed 

 and longer hairs. The legs are comparatively short, with 

 long and stout spines. The metatarsi are longer than the 

 tarsi, both with a scopula that is very thin on the posterior 

 legs. That scopula (Pl. 1, fig. 1 c) is longitudinally divided 

 by long spiniform hairs on the posterior legs. The superior 

 claws comparatively long with short teeth in two rows. The 

 inferior one is obliterated. — The mamillae (Pl. 1, fig. 1 d) 

 are two short and robust ones as by the Brachychelinae. — 

 The cheliceres with a distinct rastellum of numerous short 

 and stout conical teeth. The cephalothorax is oval with a 

 very convex pars cephalica. The central fovea deep and very 

 little procurved. The sternum is a little broader than long 

 with the sigill a of the 2nd and 3rd pair well marked. — The 

 ocular tumulus low, much broader than long. The anterior 

 row of eyes strongly procurved. The interval between the 

 middle ones longer than the distance from the lateral eyes. 

 The posterior ones on each side nearly contigous, the middle 

 ones much smaller. The anterior and posterior lateral eyes 

 about equal in size. The anterior middle-eyes largest. 



