228 bulletin: museum of comparative zoology. 



Argyrodes lucmae, sp. nov. 

 Plate 15, fig. 4-6. 



Carapace pale yellow. Sternum dusky brown or blackish. Labium 

 blackish, pale across tip. Endites yellowish with some dusky mark- 

 ings. Legs pale yellow or, especially the caudal pairs, proximally 

 whitish. Abdomen covered with scales of shining silver over a pale 

 yellow ground. 



Abdomen moderately elongate; roundly elevated above toward 

 base, (Plate 15, fig. 5). 



Posterior row of eyes straight or very nearly so; medians about 

 five sevenths their diameter apart, a little closer to the somewhat 

 smaller laterals (6:7). Lateral eyes contiguous, subequal. Anterior 

 row of eyes straight; medians their radius or slightly more apart, 

 about half as far from the laterals which are smaller (diameters about 

 as 6 : 7). Clypeus slightly narrower than the diameter of a median eye. 



Labium wider than long {cir. 4:3); sides but little convex and 

 moderately converging distad ; distally widely truncate. 



Sternum broadest across anterior end, rounded caudad and extended 

 as a slender acute process between the fourth coxae; total length to 

 the width about as 9:8, (Plate 15, fig. 4). 



Male. Length 3.8 mm. 



fem. tib. + pat. met. tar. total 



Leg I 5 mm. 6.2 mm. 7 mm. 1.6 mm. 19.6 mm. 



Legll 3.2 3.7 3 1.1 11.0 



Leg III 2.6 2.5 2 .9 8.0 



Leg IV 3 2.2 2.3 1.0 8.5 



Tibia I, 5.8 mm. 



Locality. — Lucma, 7,000 feet, August. (Type, M. C. Z. 177, one 

 male). 



Theridion sp. a. 



A young female of doubtful species from Lucma, 7,000 feet, August. 

 (M. C. Z. 178). 



Theridion sp. b. 



An immature female from the Conservidayo River, August. 

 (M. C. Z. 179). 



