224 PROCEEDINGS OF THE ACADEMY OF [April, 



Thiodina retarius Hentz. 



Journ. Bost. Soc. Nat. Hist., VI, 288, 1850. 



Huacas. 



Marpissa melanognatha Lucas. 



Hist. Nat. Canaries, Arachn., 29, 1S39. 



Punta Arenas (B.); San Jose (B.), (Picado). 



Marpissa magna Peckham. 



Occas. Pap. Nat. Hist. Soc. Wise, II, 87, 1894. 



Guanacaste (Lankester). 



Marpissa minor Cambridge. 



Biol. C. Am. Arachn. Aran., II, 250, 1901. 



Turrialba. 

 Phanias marginalis n. sp. 



Cephalothorax dark red-brown, a transverse patch of white hair 

 just behind dorsal eyes, the margins of cephalothorax broadly snow- 

 white. Dorsum of abdomen pale brown, a darker brown basal spear- 

 mark, and some dark chevrons behind, also an indistinct lateral dark 

 streak; sternum red-brown, venter pale brown. Legs pale brown, 

 femur I dark, other joints darkened at tips; patellae of palpus snow- 

 white. Length 6 mm. 



San Jose, Costa Rica (Tristan). 



Plexippus paykulli Aud. et Sav. 



Descript. Egypte (ed. 2), XXII, 172, 1827. 



Huacas; La Verbena, March; Surubres (Pac.) (B.); Congrejal de 

 Asseri (Pac), 800 m., April (B.). 



Metacyrba taeniola Hentz. 



Journ. Bost. Soc. Nat. Hist., V, 353, 1895. 



Turrialba. 



Messua desidiosa Peckham. 



Occas. Pap. Nat. Hist. Soc. Wise, III, 93, 1896. 



San Joaquin Heredia Espinach. 



Nagaina incunda Peckham. 



Occas. Pap. Nat. Hist. Soc. Wise, III, 54, 1896. 



Orosi, 20th July (Picado). 



Ashtabula nigrioans Cambridge. 



Biol. C. Am. Arachn. Aran., II, 257, 1901. 



Anonos, September; La Bolca (Picado). 



Zygoballus tibialis Cambridge. 



Biol. C. Am. Arachn. Aran., II, 292, 1901. 



San Jose. 



