194 PROCEEDINGS OF SOCIETIES. 



KEMOTELUS ULIGINOSUS. 



This larva, about four lines long when full grown, is depressed and ob- 

 long, more equal in breadth than that of Oxycera, the sides more strongly 

 lobed, the head narrower, the last segment cut into four marginal teeth, 

 the respiratory cleft being not terminal, but placed above, in front of the 

 two intermediate teeth ; it is surrounded by a fringe of pale ciliated hairs, 

 but these are not so conspicuous, being too short to pass beyond the margin 

 of the segment, and closely incumbent on it; the four £eeth are crowned 

 with longer bristles than those on the resjt of the body. The colour above is 

 dingy yeUo wish-green, clouded with dark spots, a broader pale band down 

 the middle, which includes two black dots in the anterior half of each seg- 

 ment from the fifth to the eleventh, and a brownish spot in the posterior, 

 the segments being bisected transversely by an impressed line. Almost 

 concealed in the incisures of the segments is a double transverse line of 

 very minute black dots ; some larger ones are placed in the lateral spaces, 

 the largest of all being outermost, usually two others in a triangle with 

 this, and some more in a waved line within these. The last segment 

 has only five dots in a sinuous line at each side. The second segment 

 shows the spiracles as oblique blackish spots, an appearance produced by 

 the internal tapering process of the spiracles, which is entirely black, ap- 

 pearing through the skin. The pale, rather obtuse bristles of the body 

 are arranged on the second segment, four in a whorl, in front of these 

 six smaller ones, and one at each angle outside the spiracle; the other seg- 

 ments have mostly two whorls of eight in each above. The segments 

 are generally a little dilated behind and rounded off, the lateral spiracles, 

 which are placed far back, projecting in the hollow between the segments : 

 there are a pair of such small spiracles in each segment from the third 

 to the tenth, those of the third segment being the least. The under- 

 side of the body is paler, and nearly spotless, marked only with very 

 minute black dots, disposed somewhat in the same manner as above ; 

 the bristles are placed more towards the side. The last segment be- 

 neath has a longitudinal furrow bounded by two ridges. The head is 

 long and narrow, dark chestnut, smooth and shining; a ridge runs 

 lengthwise to the insertion of each antenna, and between these a middle 

 one continued to the mouth, where it divides into three branches, the 

 lateral ones bounding the oral cavity, the middle one curving down into 

 the spiny upper lip. The eyes are crystalline ; the antennae, seated in 

 front of these and nearer to each other, are composed of a cylindric joint 

 springing from an imbedded root, and crowned with a much more mi- 

 nute joint of like form, and beside it a longer bristle curved at the tip. 

 The end of the ridged epistoma descends in a hook armed externally 

 with several teeth crowned by spines, and a tuft of finer hairs incurved 

 under its tip ; the parts of the mouth are mostly dark-red ; the labium 

 strongly compressed, terminated by a broad, rounded, fan-like lobe, 

 traversed by numerous radiating striae (tracheae), and thickly fringed 

 below with soft hairs. The mandibles are oblong, the apex obliquely 

 rounded off, and edged with a defined fringe of fine felted hairs. The 



