1909.] NATURAL SCIENCES OF PHILADELPHIA. 233 



mandibles pale; sternum yellowish. Dorsum pitted as usual, coxae 

 granulate, but sparsely so on hind pairs ; sternum and venter with few 

 granules; eye-tubercle smooth; legs very long, finely granulate; 

 palpi slender, tarsus very long and slightly curved. Length 4 mm. 



From Embouchure du Rio Jesus Maria (Pac), January, Costa Rica 

 (Biolley and Tristan). 

 Liobunum laterale n. sp. 



Pale brown, coxae and trochanters a little darker, rest of legs paler, 

 at tip of coxa IV is an indistinct pale spot; a black streak each side 

 near middle of dorsum; venter pale yellowish on the extreme upper 

 ends of the basal three segments ; palpi and mandibles pale. The dor- 

 sum is densely pitted, with a narrow pitted band on base of abdomen, 

 and on posterior segments; the coxae are densely granulate, the ster- 

 num and bands on ventral segments less strongly so; the eye-tubercle 

 with very minute spicules above; the patellae of the palpi have a very 

 distinct process from the inner tip; legs not very long. The male is 

 similar to the female, with longer legs, the abdomen flat and short, 

 with the two dark streaks ; palpi with the process to patellae, the tarsus 

 slender and curved. Length, 9 5 mm., cJ 1 4 mm. 



From Chiral Paraiso, July (Biolley and Tristan), Fortuna Cervantes, 

 and Huacas (Pac.) (Tristan); all Costa Rica, 

 Liobunum intermedium n. sp. 



Dark brown above, pale brown beneath, coxae and trochanters pale 

 brown, legs pale at base, darker near middle, and pale toward tips; 

 palpi mostly pale; mandibles pale yellowish; a golden yellow spot at 

 tip of coxa IV, no golden spots behind (as in L. biollcyi). Dorsum 

 pitted as usual; eye-tubercle minutely spinulate; coxae granulate, 

 sternum and venter less so; legs of female rather short, of male much 

 longer; patella of palpus with an inner projection at tip in both sexes. 

 Length, 9 5 mm., c? 4 mm. 



From Fortuna Cervantes (Tristan and Biolley), Pacaca, and 

 Turricares, February (Tristan) ; all Costa Rica. 



Liobunum coxalis n. sp. 



Body reddish, coxae and trochanters deep black, legs pale, but base 

 near trochanters is black, eye-tubercle black, palpi and mandibles 

 pale yellowish. 



Dorsum (cT) short and broad, densely pitted; eye-tubercle smooth; 

 coxa granulate, venter and sternum slightly so, sternum very broad; 

 palpi of moderate length, the patellae with a minute tooth at inner tip; 

 legs not very long. Length 2.5 mm. 



From Tejar de Cartago, Costa Rica (Tristan). 



