232 PROCEEDINGS OF THE ACADEMY OF [April, 



Liobunum coriaceum Cambridge. 



Biol. C. Am. Arachn. Aran., II, 582, 1905. 



Turrialba. 

 Liobunum tristani n. sp. 



Dark brown, anterior part of the cephalothorax paler, a yellowish 

 mark on each side of the abdomen behind, one or two dots on the pos- 

 terior dorsal segments; palpi and mandibles wholly pale yellow; 

 coxae and trochanters black, the suture white, and a white (or yellow) 

 spot at apex of hind coxa; rest of legs brown, patellae rather darker; 

 sternum and venter dark brown or black, each side at base of the 

 abdomen is more yellowish. The cephalothorax is pitted, a pitted 

 band on basal part of abdomen, then a large square pitted area occupy- 

 ing most of dorsum, and the posterior segments each with pitted band ; 

 coxae and sternum densely granulate; venter with a row of granules 

 on each segment; legs only finely granulate, of moderate length, eye- 

 tubercle with a few spicules in front above. In the male the body is 

 broader and flat, of a rather uniform brown, densely pitted; eye- 

 tubercle with more prominent spicules; palpi rather long, tarsi slightly 

 curved. Length, 9 6 mm., cT 5 mm. 



From Fortuna Cervantes (Biolley and Tristan), San Jose, and La 

 Verbena, near San Jose, "on the stones near the river, thrive in dark 

 places" (Tristan); all Costa Rica. 



Liobunum annulipes n. sp. 



Marmorate with brown and yellowish; eye-tubercle pale; a narrow 

 brown line reaches to front margin, some pale median spots behind; 

 coxae mostly brown, an irregular pale patch near base of each; ster- 

 num pale at base, dark on tip, venter pale, densely mottled with brown. 

 Palpi pale, except a brown band at base of tarsus. Legs pale, with 

 many brown bands, many of these brown bands contain a white mark; 

 trochanters mostly brown. Dorsum pitted as usual, eye-tubercle 

 smooth, coxae granulate, venter slightly granulate; legs quite long, 

 especially the second pair. Length 7 mm. 



From Tablazo, Costa Rica, "on the ferns" (Tristan). 



Liobunum foveolatum Cambridge. 



Biol. C. Am. Arachn. Aran., II, 5S3, 1905. 



Tablazo. 

 Liobunum frontale n. sp. 



Dark brown, coxae and trochanters same color; legs paler at base, 

 darker beyond, then pale toward tips; in front of eye-tubercle is a 

 white spot extending to front margin; palpi brown, tarsus pale; 



