PASIPHvEA S1VAUO. 



313 



of the superior or internal antenna?. The superior an- 

 tennae have a cylindrical peduncle, the basal joint of which 

 is hollowed for the lodgement of the eyes ; the filament is 

 double. The external or inferior antennse are placed im- 

 mediately beneath the former ; the peduncle is cylindrical, 

 terminating in two filaments, one of which is about as long- 

 as the body, the other extremely short ; the lamina or 

 scale is narrow-ovate, and ciliated along the inner margin. 

 The eyes are much larger than their peduncles. The ex- 

 ternal pedi palps are long, slender, and pediform, each fur- 

 nished with a long palp which is a little thicker than it 

 and about half its length. The first pair of feet are rather 

 more robust than the second, the hand thicker in the mid- 

 dle, the fingers shorter than the hand, and curved at the 

 points which are acute, and cross each other when closed ; 

 the arm is furnished with a series of short remote teeth ; 

 the second pair are ordinarily rather longer than the first, 

 more slender, the fingers as long as the hand, and furnished 

 along their prehensile edge with a dense series of short, 

 stiff hairs. The third pair is extremely slender, filiform, 

 and simple ; the fourth pair, by much the shortest, being 

 not more than half the length of the fifth, the penultimate 

 joint furnished on its inner margin with a brush of stiff 

 hairs, and the terminal joint ciliated ; the fifth pair very 

 long and slender, the terminal joint ovate, furnished with a 

 lash of hairs of twice its length. The abdomen is very 

 long and much compressed ; the second segment broad 

 and rounded ; the fifth broad and squared at the lateral 

 margin ; the sixth remarkably long and narrowed ; the 

 seventh or central lamina of the tail very narrow and wedge- 

 shaped. The external larnime of the tail are longer than 

 the internal, which are intermediate in length between the 

 former and the median lamina or seventh abdominal .segment. 



