C 578 ) 



from those of other species. The upper sarfaces of the first two segments bear 

 nnmerons short, stout, pointed bristles, which resemble those on the head. The 

 tirst segment is longer than broad, and the armature of the under side consists of 

 a median row of ten or eleven stout spines, and numerous short spines near the 

 anterior (= outer) edge. The second segment tapers towards the a])ex, and is 

 jirovided above with a comb which extends from near the base to the apex. 

 Beneath this comb the segment is concave, and along the lower edge of this 

 concavity there are several fairly long bristles. The under surface of this segment 

 bears a longitudinal median row of short obtuse spines, and on the outer side 

 numerous short bristles. The third segment has on the upper side an oblique row 

 of strong bristles. The proportional lengths of the four segments are 33, 35, 

 14, 14. 



The structure of the antenna and of the adjacent lateral area of the upper 

 surface of the head renders it evident that the antennae are not laid on the upper 

 side of the head, as in the previous species, but along the edge of it, the edge 

 fitting in between the comb and long bristles of the second segment. 



The prothorax is nearly twice as broad as it is long (63 : 35), the notum being 

 a transverse oblong with the basal angles more strongly rounded than the apical 

 ones. The anterior edge is slightly incurved, while the posterior margin is feebly 

 convex. The short bristles are very numerous and have the bases somewhat 

 widened, which gives them the appearance of pointed spines, as is also the case 

 with the bristles on the head. The depressed mesial line is bare of bristles, except 

 for the frontal part, and there is also a transverse bare stripe in front of each 

 comb. The presence of two combs on the pronotnm is a very striking feature 

 of this species. The spines of both combs are short. Those of the anterior one 

 are pointed, and only differ from the bristles in being stouter at their bases, the 

 lateral sjiines of the comb resembling the ordinary bristles. This comb does not 

 (juite extend to the point where the stigma shines through from beneath, and behind 

 it there is a row of very long bristles. 



The elytra, which are more strongly rounded at the sides than at the apex, 

 have no comb, but are densely setose, with the exception of the apical margin and 

 the basal area. There are a number of bristles near the basal edge, concealed by 

 the overlapping prouotum. 



The underside diHers very considerably in the shape of the sterna from that of 

 the Old- World genera Foli/ctenes and Eoctenes, the species closely approaching the 

 American genus Hesperocteiies. The prosternum {i.e. the median sclerite) is 

 triangular, being twice as broad as it is long, and just reaches the coxae, not 

 extending in between them. The suture which bounds it laterally and runs from 

 the coxal cavity to the anterior margin of the prosternite is very short on account 

 of the great size of the coxal cavities. The bristles are numerous, but the lateral 

 corners and a small space at each side of the centre are bare of them. Behind the 

 coxae in the middle the endoskeleton shines through. The mesosternum is evenly 

 incurved anteriorly and likewise evenly excnrved jiosteriorly. The central area of 

 it bears many bristles, and there is also a somewhat irregular row near the apical 

 margin. The metasternum is transverse, halfmoon-shajjed, and bears a subapical 

 row of bristles and also some subbasal ones. 



The larger portion of the under side of the fore femnr is without bristles, there 

 being an irregular double mw from the outer side to the trochanter and a number 

 of small hairs at and near the inner margin. On the outer side of the fore femur 



