1909.] NATURAL SCIENCES OF PHILADELPHIA. 205 



Dipoena micratula n. sp. 



Cephalothorax pale yellowish, rather darker on the sides, eyes sur- 

 rounded by black, palpi pale yellowish; legs yellowish on femora, 

 rest greenish; abdomen greenish gray, a black spot above the spin- 

 nerets and a black median stripe on venter ; sternum yellowish. Cepha- 

 lothorax high; eyes rather large, A. M. E. larger than others; clypeus 

 concave; abdomen short and broad, and high; legs slender, but short, 

 finely hairy, palpi as figured. Length 1 mm. 



Orosi, Costa Rica, 5th July (Picado). 



Dipoena proba Cambridge. 



Biol. C. Am. Arachn. Aran., I, 294, 1899. 



Fortuna (B. and T.); and Chiral Paraiso (B. and T.). 



Teutana grossa Koch. 



Die Arachn., IV, 112, 183S. 



Cartago (Picado) ; and Turrialba, August. 

 Steatoda americana Cambridge. 



Biol. C. Am. Arachn. Aran., II, 377, 1902. 



Anonos, September. 

 Lithyphantes hermosa n. sp. 



Cephalothorax and legs reddish, femora more purplish; abdomen 

 purplish, with two oblique white bands each side, and a pale area 

 behind near tip; venter purplish, with a white crescent-like mark in 

 front of the spinnerets; sternum reddish. Legs short; abdomen 

 broadest and rather highest behind. Vulva showing two circular 

 orifices, fully their diameter apart. Length 3.2 mm. 



Punta Arenas, Costa Rica (Biolley). 



Argyrodes americanus Taczanowski. 



Hor. Soc. Ent. Ross., X, 62, 1873. 



Tejar de Cartago (B. and T.); La Verbena, March; Anonos, Sep- 

 tember; and Orosi, 2d July (Picado). 



Argyrodes maculosus Cambridge. 



Biol. C. Am. Arachn. Aran., I, 25S, 1898. 



Santa Maria Dota. 

 Neriene maculosa n. sp. 



Cephalothorax orange, eyes on black spots, legs pale yellow, coxae 

 and mandibles orange, sternum also orange; abdomen brown, a faint 

 paler median area, which, behind the middle, is more definite and 

 margined by two black streaks to tip of abdomen, rest of the dorsum 

 spotted with white, most of the spots on the upper sides ; venter dark, 

 with a few white spots, and each side a little beyond ends of lung- 



