Superramily Argiopoidea 



inhabits caves, the eyes are wanting. The Linyphiidas differ 

 from the Theridiida?, with which they were formerly classed, in 

 lacking the comb on the tarsi of the fourth pair of legs, which 

 is characteristic of that family (Fig. 377); and they differ from 



Fig. 377- TARSUS OF LEG OF LIXYPHIA 



the Argiopida?, with 

 which they are classed by 

 some later writers, in 

 usually having more or 

 less distinct organs of 



Fig. 378- CHELICERA OF 



LEPHTHYPHANTESNEBULOSUS, 



SHOWING THE FILE 



- emb. 



cym. 



Fig. 37Q- PALPUS OF 

 LINVPHIA PHRYGIANA 



PC paracymbium 



stridulation on the external side of the basal segment of the 

 chelicerae (Fig. 378), a nd from nearly all argiopids in having 

 dissimilar eyes and in lacking the lateral condyle of the chelicerae. 

 The palpi of the males of the Linyphiidae differ from those 

 of the argiopids in that the paracymbium is closely applied to the 

 bulb, except during the turgesence of the haematodocha. The 

 cuticle of the paracymbium is hard and smooth, but its margin 

 is often furnished with hairs or spines, usually in a single series. 



3O9 



