1892.] NATURAL SCIENCES OF PHILADELPHIA. 15 



behind this the scales are somewhat golden or dark brown accord- 

 ing to the light. Near the middle of the abdomen there is on each 

 side a patch of white, behind this the scales are dark-brown or 

 golden according to the light. The apical third of abdomen is 

 black or nearly colorless according to the light. Sides are golden 

 or brown, with a w'hite oblique band at constriction of abdomen. 

 Venter with bright colored scales, in certain light the basal ones are 

 reddish-purple, the apical ones golden. Hairs long, dark, scattered. 

 Epigynum reddish, spinnerets dark red-brown. Cephalothorax 

 highest in middle ; sternum sharp-pointed behind, rounded in front, 

 wndest at second coxje. Abdomen with a deep transverse furrow 

 somewhat in front of middle, and which does not intersect the upper 

 side margin ; a slight constriction in the sides at the same points ; 

 epigynum as figured. 



Rare. 14th Sept. Fall Creek on Solidago with reddish ants of 

 same size, which it greatly resembles. 



Thargalia agilis, nov. sp. Plate I, fig. 52 and 52a. 



Total length 9 9-4mm. 



Length of cephalothorax 3'6mm. breadth 2*5mm. 



Length of abdomen 6' mm. breadth 3'6mm, 



Length of sternum l*9mm. breadth l"3mm. 



Length of femur I 2-7mm. tibia I 2- mm. 



Length of femur IV 3- mm. tibia IV 2-7mm. 



Cephalothorax jet black with a few white plumose hairs; mandi- 

 bles dark reddish-browni ; sternum brownish-black ; labium and 

 maxillse reddish-brown, whitish at tips ; palpi reddish-brown ; all 

 coxae reddish-brown ; all femora darker brown ; other joints of first 

 and second pairs of legs light yellow-brown ; other joints of hind 

 two pairs as dark as the femora, except the tarsi which are lighter. 

 Abdomen black, shining, with scattered whitish plumose hairs, more 

 reddish beneath with hairs more numerous and less plumose ; spin- 

 nerets dark. Cephalothorax not much higher in middle than in 

 front ; rounded in front and behind ; upper row of eyes procurved ; 

 lower row nearly straight ; INI. E. of upper row nearer S. E. than 

 each other ; same with lower M. E. ; quadrangle of M. E. higher 

 than broad ; maxillie convex ; labium * length of maxillje ; epigy- 

 num as figured ; no spine on front side of fourth hind patellse. 



Not uncommon. Six Mile Creek. 



Thargalia perplexa, nov. f^p. Plate I, figs. 53, 53a, and 53b. 



Total length 9 8- mm. 



Length of cephalothorax 3"3mm. breadth 2-3mm. 



