Superfamily Argiopoidea 



The epigynum of the female is represented in Fig. 354; 

 the two openings of the spermathecae are wide apart, and near 

 the thickened edge of the plate. 



Theridion spirale (T. spi-ra'le). — See the introduction to 

 the account of T. differens above. The cephalothorax is orange- 

 brown above and below, with an indistinct dark stripe above as 



Fig. 354- 



THERIDION MURARIUM 



EPIGYNUM 



Fig. 356. 

 THERIDION SPIRALE, 

 EPIGYNUM 



Fig. 355- 

 THERIDION SPIRALE, PALPUS OF MALE 



wide as the eyes in front and narrowed behind. The middle stripe 

 of the abdomen is sometimes reddish, but oftener gray, with a 

 dark spot near the front end. 



The male palpi are very large, and differ markedly from those 

 of the two preceding species by the great length of the embolus 



(Fig. 355)- 



The epigynum of the female is represented by Fig. 356; 

 the two openings of the spermathecae are about the diameter of 

 one of them apart. 



Genus THERIDULA (The-rid'u-la) 



The anterior row of eyes is procurved; the abdomen, in 

 the female at least, is wider than long with a hump on each side 

 in the middle of its length (Fig. 357); the tibia of the palpus of 

 the male is enormously developed, concave on the inner side, and 

 overlaps the tarsus half its length; while the bulb itself is very 

 simple (Fig. 358). 



These are small spiders, measuring less than one eighth 

 inch in length. They are found on bushes by sweeping, but their 



354 



