188 CLARENCE M. WEED. 



51 mm.; second, 75 — 92 mm.; third, 39 — 48 mm.; fourth, 60 — 70 mm. Body 

 elongate, narrowed posteriorly. Dorsum reddish brown, of a nearly uniform 

 tint, with a faint central marking, and scattered yellowish spots; minutely tu- 

 berculate. Eye eminence black, slightly canaliculate, with a row of rather 

 small, lilack, distant tubercles on each cariiia. Mandibles light yellowish brown, 

 tips of claws black; second joint with sparse hairs. Palpi well developed; 

 black, except tarsus, which is brownish: a row of tubercles on outer ventro- 

 lateral surface of femur; femur, patella and tibia each somewhat arched ; a few 

 tubercles on lateral surface of proximal jiortion of patella, and a row of flattened 

 black tubercles on the inner ventro-lateral surface of tarsus ; ventral surface of 

 tibia clothed with stilf black hairs. Ventral surface, including coxfe, of nearly 

 the same color as the dorsum, but a little lighter; coxse tipped with white. Legs 

 very long and slender; trochanters dark l)rown, more or less blackish ; rest of 

 legs blackish. Genital organ flattened, bent with a double bow-like curve, con- 

 tracted at its distal extremity, and ending in short acute point. 



Female. — Body 7.5 mm. long, 4.5 mm. wide ; palpi 5 mm. long. Legs: first, 

 37 mm. : second, 70 mm.; third, 38 mm. ; fourth, 51 mm. Difi'ers from male as 

 follows: Body larger, roundei-; central marking more distinct; inner distal 

 lateral angle of patella more conical ; row of tubei'cles on tixrsus of patella obso- 

 lete; legs brown rather than black. 



North Carolina : Bliuning Rock, August, 1889 (Geo. F. Atkinson). 

 Oliio : Fairfield County, Sept. 20, 1890. Pennsylvania : Hunting- 

 don County (Wood). Described from many specimens. 



This handsome species is quite rare. The only living specimens 

 I have seen were those collected in Fairfield County, Ohio, in Sep- 

 tember, 1890. In the woods on the top of a high hill I saw several 

 pairs running about after each other one afternoon, evidently courting. 



I have also sonie specimens collected by Prof D. S. Kellicott in 

 Shiawassee County, Michigan, that I have referred to this species 

 with considerable hesitancy. If they belong to it they are not fully 

 developed, as the body and legs are light colored and soft. The 

 trochanters of the males are blacker than in normal fully developed 

 specimens. There is a distinct, interrupted, black marking on the 

 dorsum of the females. 



Ijiobuuuui Teiitrico»iiiiii (Wood), Weed. Plate V. 



Phalangium ventricosuvi Wood, Comra. Essex Inst., vol. vi, pp. 32-33, 39, fig 7. 

 Phalangium ventricosuvi Wood. Packard's Guide to the Study of Insects, p. 



657, fig. 633. 

 Phalangium ventricosum Wood. Undei'wood, Can. Eut. vol. xvii, p. 169. 

 Liobmium (?) ventricosum (Wood). Weed, Amer. Nat. vol. xxi, p. 935. 

 Liobunum (?) ventricosum (Wood). Weed, Bull. 111. State Lab. Nat. Hist. vol. 



iii, p. 104. 

 Liobunum ventricosum (Wood). Weed, Amer. Nat. vol. xxiv, p. 918. 



Male. — Body 7 mm. long; 4.5 mm. wide; palpi 5 mm. long. Legs: first, 35 

 mm.; second, 68 mm.; third, 35 mm. ; fourth, 53 mm. Body elongate; abdomen 

 conical or pear-shaped. Dorsum, legs including trochanters, and palpi varying 



