684 PROCEEDINGS OF THE NATIONAL MUSEUM. 



Antennae sparingly hirsute, the distal joints moderately so; basal 

 joint bulbous, the others, except the last, obconic, with equal diameters; 

 length, 4.5 mm.; diameter, 0.25 mm.; length of second joint, O.S mm. 



Mentum, stipes, and lingual lamin;i' densely hirsute with short hairs, 

 except distally ; stipes and himinjc with L)ng bristles along the margin. 



First segment smooth and shining, a sliglit transverse depression in 

 front of the middle; lateral ends with a fine raised margin. Medianly 

 the segment is slightly and broadly emarginate. 



Subsequent segments like the first, slightly broader and longer to 

 the fifth; surface smooth and shining, very finely and regularly reticu- 

 late; areolate under sufticient magnifying power. 



Lateral carina' irregularly rugulose inside the raised margin, more 

 especially on posterior segments; on the first fimr segments the pos- 

 terior niaigin is curved forward, while on subseijucnt segments it is 

 turned more and more caudad and produced into a conical point until 

 the projection of the eighteenth segment exceeds the nineteenth seg- 

 ment in length (see Plate LV, fig. 2y). 



Posterior segments with scattering longitudinal wrinkles above, the 

 submarginal wrinkles more i)r()nounced. 



Anal segment above irregularly rugulose transversely; setigerous 

 punctations very inconspicuous. No seta^ were found, though their 

 absence is probably accidental. 



Anal valves not infiated, vertically rugose, the margins thick, raised, 

 but not so strongly compressed as to be bounded by a definite furrow. 



Preanal scale very thick, somewhat rugulose on the edge, mostly 

 smooth and shining. 



Sterna, especially the posterior, densely hirsute with fine, long hairs. 



Processes of the sternum of th& fifth segment of males straight, erect 

 subspatulate, fiattened cei)halo caudad. armed at base with a few long, 

 divergent bristles; naked and nearly smooth distad. 



Processes of the sixth segment similar in shape, armed with long 

 bristles ou their inner faces, otherwise naked; in size they are slightly 

 larger than those of the fifth segment. 



Legs of male crassate, more or less densely hirsute with very long 

 hairs. 



Coxa' of first pair of male legs approximate, moderately hirsute 

 distad. Coxa' of second male legs somewhat separated, conically pro- 

 duced ventrad, and with irregular prominences caudad; naked except a 

 few long bristles. Coxa^ of third and subsequent legs widely separated, 

 more or less hirsute. Coxic of seventh legs of males prominent mesafcl, 

 especially the anterior corner; these prominences, with the processes 

 from the sternum, give protection to the genitalia. 



Pregenital legs of male with the claw much reduced, and a white 

 membranous or fieshy sole projecting nearly as far as the claw. This is 

 doubtless to assist in grasping the female; the same contrivance is 

 found among the smooth lulida'. 



