58 



PROCEEDINGS OF THE ACADEMY OF 



[1892. 



latter often faint ; on front of dorsum a red spot ; caudal half of 

 dorsum with two red stripes converging to meet just above the 

 spinnerets ; venter and spinnerets light, the latter sometimes with a 

 red spot at base. Markings on dorsum vary in quantity ; some- 

 times the red spot on front of dorsum is connected with the two 

 bands behind ; sometimes the red bands are so wide that the dorsum 

 appears red with four white bands. Legs whitish, the metatarsi 

 I and II usually a little darker; tibia I and II frequently with two 

 red bands. Front of cephalothorax as high as in middle ; widest in 

 middle ; lower row of eyes more curved than upper ; upper row of 

 equal size ; M. E. slightly nearer each other than to the S. E. ; lower 

 row about of the same size and at equal distances; the four M. E. 

 forma quadrangle just as broad as high ; abdomen widest a little 

 caudad of middle; sternum heart-shaped, almost as wide in front as 

 in middle ; body and legs covered with bristles arising from reddish 

 punctures; two rows of spines on tibise I and II, two to four spines 

 in each row ; two rows of -five to six spines on metatarsi I and II. 



Total length 



Length of cephalothorax 



Length of sternum 



Length of femur I 

 Length of femur IV 



Markings similar to the 9 



$ 

 l"8mm. 



•9mm. 

 2" mm. 

 I'lmm. 



mm. 

 ■75mm. 



4 

 1 



•75mm. 

 1"8 mm. 



•8 mm. 



breadth 

 breadth 

 tibia I 

 tibia IV 



a little brighter ; the femur I and II 



with prominent red spots, patella and tibipe I and II with red 



bands. 



Common, Se2:)t., Oct. 



Misumena vatia Clerck. 



Common, May and Sept. 



Misumena placida, nov. sp. 



Total length 



Length of cephalothorax 



Length of sternum 

 Length of femur I 

 Length of femur IV 



9 juv. 



•2mm. 



!• mm. 



2.5mm. 



1* mm. 



Distance between epigynum and spinnerets 



Cephalothorax light yellow, with a band each side of reddish- 

 yellow, reaching from the anterior margin and not quite to the pos- 

 terior ; at end of head a small projection entad from each band; 

 eye-region whitish ; clypeus a little reddish ; legs a light gray-yellow, 

 distal joints a little redder. Abdomen a gray-white above and 

 below; sternum and mouth-parts white; abdomen with many red- 



