90 



lamellar expansion covering at the sides the oral area; rostral projection con- 

 siderably prominent, with the end narrowly produced and terminating in 2 

 small juxtaposed points. Urosome somewhat shorter than the anterior division, 

 with the lateral parts of the segments slightly prominent and rounded off; 

 genital segment comparatively large and distinctly subdivided in the middle; 

 last segment shorter than the preceding one, with the anal opercle coarsely 

 denticulate at the edge; all the caudal segments containing within their lateral 

 parts a very conspicuous rounded opaque body of apparently glandular nature. 

 Caudal rami slightly exceeding in length the anal segment and rather narrow, 

 with 2 juxtaposed bristles on the outer edge at a short distance from the end; 

 dorsal seta issuing a little farther behind; apical setae very slender. Anterior 

 antennae nearly as long as the cephalic segment, and only composed of 4 

 distinctly defined joints clothed with scattered comparatively short and stout 

 setae; 2nd joint produced behind in the middle to a strong claw-like projection; 

 3rd joint about the length of the first 2 joints combined, and exhibiting at the 

 end, in addition to the projection carrying the usual aesthetask, a small conical 

 process tipped with a seta, and apparently representing the remnant of a small 

 joint originally intercalated between it and the succeeding (last) joint, but 

 otherwise wholly coalesced with the former; terminal joint about as long as 

 the 3rd, but much narrower. Posterior antennae of moderate size; outer ramus 

 formed by a small, but well defined joint carrying on the tip 2 somewhat 

 unequal setae. 1st pair of legs much smaller than the succeeding ones and, 

 as usual, armed at the inner corner of the 2nd basal joint with a deflexed 

 spine; inner ramus somewhat shorter and much narrower than the outer, with 

 the distal joint comparatively small, and carrying on the tip a slender seta 

 accompanied by a short bristle; outer ramus without any setae inside, its distal 

 joint of about same size as the proximal one, and armed at the end with 3 

 slender spines followed by a somewhat longer ciliated seta. The 3 succeeding 

 pairs of legs with the outer ramus very slender and narrow and without any 

 seta inside the 1st joint; inner ramus in 2nd pair extending about to the end 

 of the middle joint of the outer, in the 3rd and 4th pairs successively shorter. 

 Last pair of legs with the distal joint very small, oval in form, and edged 

 with 4 setae; proximal joint produced outside to a long digitiform process 

 tipped with a slender bristle; inner expansion exserted to a long conical 

 lappet extending far beyond the distal joint, and tipped with a slender seta 

 accompanied outside by a very minute bristle. 



Colour pale yellowish grey. 



Length of adult female 0.62 mm. 



