CONILERA CYLINDRACEA. 305 



THE whole upper surface of this animal is smooth, glossy 

 and impunctate, of a pale yellow colour, clouded with 

 cinereous on the sides. The eyes are small and distant 

 apart ; the antennas short, the upper not extending 

 beyond the eyes, composed of four rather strong sub- 

 cylindrical basal joints, and a flagellum of about seven 

 articuli ; the lower antennae (separated from each other 

 by a narrow raised ridge) are rather more than twice 

 the length of the upper pair ; they consist of four 

 short basal joints, a fifth slender joint, and a flagellum 

 with about twelve articuli. The labrum is trans- 

 verse, with the anterior angles rounded, and the middle 

 of the free margin slightly emarginate. The man- 

 dibles are robust and horny, with the apex incurved 

 and three-toothed, the middle of the inner margin fur- 

 nished with a slender movable appendage slightly ser- 

 rated on its upper edge ; the foot-jaws are broad, shutting 

 the mouth from below, six-jointed, the three terminal 

 joints broad and flat, with their outer margins setose. 

 The first pair of maxillae are composed of a broad basal 

 joint terminated by two somewhat conical lobes, of which 

 the outer is divided into two parts by an oblique articu- 

 lation. The second pair of maxillae (represented more 

 magnified than the preceding mouth-organs) are termi- 

 nated by three lobes, of which the outermost is largest, 

 somewhat triangular, and furnished with strong bristles 

 on its inner edge ; the middle lobe is a slender simple 

 piece, but the innermost lobe is much more complicated, 

 terminated by three small pieces, of which the outer is 

 slender, curved, and setose at the tip ; the two inner lobes 

 are of equal size, conical, and strongly and transversely 

 verticillated across their centre. The three fore pairs 

 of legs are short and very robust, with the middle 

 joints broad, flattened, and produced into an angle on 



VOL. II. X 



