Occasional Papers of the Museum of Zoology ii 



though less dense on first one or two which have the more 

 numerous setae. 



Dental plates low, separated by a median incision, their edges 

 straight. Prosternum without median or paired sulci. 



First dorsal plate with a freely exposed semicircular cervical 

 sulcus, but without trace of paired longitudinal sulci, which are 

 also lacking on the second tergite. Paired submedian sulci present 

 from third tergite caudad, lateral sulci beginning with the fourth. 

 All tergites without traces of a median keel. 



Ventral plates with a median longitudinal sulcus. Last 

 ventral plate not sulcate, its caudal margin obtusely excavated. 



Spiracles circular, rather large. 



Coxopleural processes of moderate length, point single, no 

 spinules on them or coxopleurae. Pores of coxopleurae very 

 numerous. Mesal surfaces of coxopleurae beginning at bases of 

 processes densely pilose. 



Basal spines of tarsal claws large. Distal division of tarsus 

 of all legs to the penult inclusive with a large ventral spine at its 

 middle. Metatarsus of all legs to the antepenult inclusive with two 

 distal spines, that of the penult legs with only the ventral one. 

 All joints of penult legs densely pilose over mesal surface. 



Mesal surface of femur of anal legs densely pilose, the hairs 

 elsewhere numerous but less dense. All joints of anal legs more or 

 less decidedly flattened. Tarsus without any first article set off 

 from the rest, no distinct divisions at all present, as a whole much 

 longer than the metatarsus. Femur armed along ventral edge 

 with five short curved spines. The tibia with a series of three 

 similar but somewhat smaller spines, one near middle and two 

 proximad of middle (Plate III, Fig. ii). 



Length of type, 52 mm. 



British Guiana, Dunoon: sand-hill forest, x\ugust 20, 1914, 

 F. M. Gaige. Two specimens. Type, M.C.Z., 2178. 



