1905.] NATURAL SCIENCES OF PHILADELPHIA. 333 



lateral, a little nearer each other than to the lateral from which they 

 are separated by a little more than half their diameter. Median ocular 

 area about as wide as long. Clypeus narrower than ocular area. 



Prosopotheca transversa n. sp. (PI. XXIX, fig. 5.) 



9 . — Length 1.9 mm. Cephalothorax, long .77 mm., wide .5 mm. 



Legs I V Palpus 



Tar 36 .34 .26 



Met 5 .58 



Tib 56 .69 .16 



Pat 22 .19 .1 



Fem 79 .74 .24 



Cephalothorax oval, only slightly narrowed in front, not elevated, 

 yellowish-brown, darker near edges and in front part of eye space, 

 marked with darker radiating lines. Posterior eyes in a straight line, 

 equal, the median eyes separated from the lateral by their radius and 

 from each other by three-foiu-ths their diameter; anterior eyes in a 

 slightly procurved line, equidistant, and with the median eyes three- 

 fifths as large as the lateral. Median ocular area as long as wide. 



Clypeus vertical, much narrower than the ocular area. Chelicerse 

 not robust, straight, neither attenuate nor divergent. Upper margin 

 of furrow with three teeth, the first two contiguous and the third 

 smaller and placed at the inner angle. Lower margin of furrow with 

 two teeth close together near the base. Sternum light brown, darker 

 on the posterior point which is narrower than the length of the posterior 

 coxae. 



Endites like the stermma, lighter near the tip. Abdomen dark gray 

 with two oval coalescent lighter spots on the front part and a light area 

 near the tip, under side dark gray with a reddish-yellow transverse 

 quadrangular band midway between the spinnerets and the epigynum. 

 Legs light yellow darkened at base; on the first pair the dark marking 

 extends to near the end of the femur, on the second to the middle, on 

 the third only a short distance and is much lighter. On the fourth 

 pair there is a small dark spot on the under side of the base of the femur. 

 Spines weak and rather short. No auditory hair on fourth metatarsus. 



Palpus dark brown, short and thick; tip of tibia as thick* as patella 

 is long, tarsus robust, clothed with numerous weak spines. 



I have a male of this species lacking one molt of adult, taken at 

 Ithaca, New York, August, 1904, and another from Columbia, Missouri, 

 October, 1904. The tibia of the palpus shows a dorsal apophysis and 

 the yellow band on the ventral aspect of the abdomen is very distinct. 

 The head is nearly normal. Clypeus narrow and retreating. 



