290 CLARENCE M. WEED. 



light yellowish brown, tips of claws black ; second joint with sparse hairs. Palpi 

 slender, light brown, distal portion of femur and all of patella black; femur, 

 patella and tibia with small scattered tubercles and short hairs ; tarsus pubescent, 

 with a row of small, black tubercles on its inner ventro-lateral surface. Ventrum, 

 iucluding coxae, y>aler than dorsum, of a nearly uniform, light brown tint; coxae 

 tuberculate, tips white; trochanters black. Legs long, slender, black or brown- 

 ish black; generally, though not always, with apical tenth of tibiae of second 

 pair white. Shaft of genital organ flattened, contracted near its distal extremity 

 and bent upward, terminating in an acute point. 



Female. — Body 5 mm. long; 3 5 wide. Third legs, 30 mm. long. Body larger 

 and legs shorter than in male. Dorsum mottled brown and black, with a distinct 

 dark central marking, twice interrupted on posterior third of abdomen. Legs 

 brown, with whitish annulations at many of the joints. Palpi colored as in % . 



The short legs and melanistic tendencies distinguish this subspecies 

 from the normal form in other regions. The blackness of part of 

 the palpal joints, of the eye eminence, and of the margin of the 

 eephalothorax, are all very pronounced. 



Nan]ed for Mr. J. M. Aldrich. 



Liiobiiiiiiin bicoloi* (Wood) Weed. 



Phalangium bicolor Wood, Comm. Essex Inst, vi, 28. 

 Liobunum bicolor Weed, Am. Nat. xxi, 935; xxvii, 295. 



Male. — Body 5 mm. long ; 3.5 mm. wide ; palpi 4 mm. long. Legs : i, 20 mm. ; 

 ii, 38 mm. ; iii, 21 mm. ; iv, 31 mm. Dorsum brownish black, with a faint indi- 

 cation of a lighter central marking, and a large, brown, quadrangular, reticu- 

 lated patch on the central portion of the dorsum of abdomeu, behind which are 

 two other transverse reticulated bands. There are also on the dorsum of the 

 abdomeu more or less distinct transverse rows of whitish tubercles with black 

 tips. Eye eminence prominent, brown, lightly canaliculate, with a row of well- 

 developed, acute, brown tubercles on each carina. Mandibles light yellowish 

 brown, smooth, with only a few indistinct whitish hairs. Palpi short, light 

 brown, with femur and patella more or less dusky ; all joints except tarsi, with 

 numerous small spinose tubercles; ventral surface, iucluding coxae, brownish 

 white ; a transverse row of minute tubercles on each abdominal segment; coxae 

 closely tuberculate. Legs light brown, very sleuder, long; proximal joints with 

 rows of acute conical tubercles. 



Female. — In this sex there is a large, triangular, reticulated patch on ae 

 eephalothorax, the posterior portion includiug the eye eminence; between this 

 and the quadrangular patch on abdomeu is a smooth grayish black space, which 

 is interrupted by a transverse reticulated band. 



A rare species. Taken at Brookings and Custer, S. D. 



Liiobiiiiiiin (?) calcar (Wood) Weed. 



Phalangium calcar Wood, Comm. Essex Inst, vi, 26. 

 Liobunum- (?) calcar, Weed, Am. Nat. xxi, 935. 

 3Iale. — Body 7.5 mm. long; 4.5 mm. wide. Legs: first, 31 mm.; second, 56 

 mm.; third. 32 mm. ; fourth, 40 mm. Body pyriform. Dorsum reddish brown, 

 minutely tiiberculate; some specimens having a faint indication of a central 



