260 bulletin: museum of comparative zoology. 



base on ventral surface; femora I and II with series of ventral spines; 

 femur III with no spines beneath. 



Male. Length (not including caudal process), 7.2 mm. Length 

 of cephalo thorax, 3.1 mm.; width 2.25 mm. 



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



Leg I 4.1mm. 4.3 mm. 2.3 mm. 1mm. 11.7 mm. 



Leg II 3 3.1 2.1 



Leg III 2.25 2.1 1.1 



Leg IV 2.9 2,9 2 



Tibia I, 3 mm. 



Locality — San Miguel, 6,000 feet, July. (Type M. C. Z. 241, one 

 male). 



Scoloderus hybus,^ sp. nov. 

 Plate 19, fig. 9. 



Caudal region of head strongly elevated as usual, the tubercle 

 rounded; posterior declivity of cephalothorax steep. Abdomen 

 large and very high, its surface clothed with numerous very short, 

 straight and acutely pointed hairs as is also that of the carapace. 



Carapace and legs dusky red-brown, the latter obscurely annulate. 

 Sternum dusky brown, the coxae of legs beneath paler. Abdomen 

 above brownish grey, with vague chevron-lines caudad, the anterior 

 face and sides dusky with on the anterior face a small median white 

 spot, the dark of the sides in part in oblique stripes more vaguely 

 extending upon the dorsum; venterdusky or blackish mesally, paler 

 laterally. 



Posterior row of eyes strongly recurved ; median eyes one and three 

 fifths their diameter apart, four times their diameter, or somewhat 

 more, from the laterals. Lateral eyes at clypeal corners as usual, con- 

 tiguous. Anterior row of eyes conspicuously procurved in the typical 

 manner, the median eyes equal in size to the posterior medians, one and 

 two fifths their diameter apart, twice their diameter from lower edge 

 of clypeus, the latter narrower than eye area. Area of median eyes 

 wider than long (9:7); wider behind than in front in the ratio 9:8. 



Lower margin of furrow of chelicera with three teeth of which the 

 most proximal is largest; upper margin with four teeth. 



Spines of legs few, long. 



Epigynum small, of form, (Plate 19, fig. 10). 



' 'v0di, hump-backed. 



