PHALANGES OF THE UNITED STATES. 19 



of small black spinous tubercles. Ve7itral surface a grayish brown, 

 tuberculate, with the abdominal segmentation strongly pronounced. 

 Coxce smooth or slightly tuberculate, grayish. Trochanters black. 

 Legs brownish, darker in the male, with blackish rings at the articu- 

 lations generally relieved by a whitish tipping. Spines on the feet 

 small, not very numerous Penis very slender, not very much flat- 

 tened, distally bent nearly at right angles to itself, and ending in a 

 long, thin, very acute point. 



Length of Body, ?, 0.3; ^, 0.2. Length of Legs, $, (1) 1.4, (2) 3, 

 (3) 1.4, (4) 1.9; <y, (1) 1.4, (2) 2.4, (3) 1.4, (4) 1.9. 



Remarks. I have seen a number of specimens of this 

 form collected in various localities near Philadelphia. It 

 appears to be an outdoor species ; most of the specimens 

 in my possession were, if I am correctly informed, 

 taken on black and raspberry bushes in gardens. The 

 male and females are quite different. There are not only 

 the usual diiferences of size and form, but the female is 

 lighter in general color with little or none of the reddish 

 hue so general in the male, the flank markings more dis- 

 tinct, the palpi grayish (rarely reddish) , and the feet of 

 a lighter brown ; the crenations of the palpi are also less 

 strongly pronounced and often not easily made out from 

 their grayish tint. I have never seen these two forms 

 actually in coitu, but am led to refer them to the same 

 species by their general agreement of characters, and the 

 facts that they have been found together, and the one are 

 always male, the other female specimens. I have a sin- 

 gle specimen from Elizabethtown in Northern New York, 

 collected by my brother, George B. Wood, Jr. Also a 

 large number caught near Washington, by Mr. Austin. 



Mr. J. H. B. Bland, of Philadelphia, has given some 

 small Harvest-men taken by him early in the spring, 

 which appear to be the young of this species. In these 

 the gray color of the adult is almost a milk-white ; the 

 eye eminence is also white. 



