Dec, igoi.] DyAR : LiFE HiSTORY OF UrANOT^NIA SaPPHIRINA. 181 



but not appressed, forming a triangular mass about 2 mm. in di- 

 ameter. Egg elongate cylindrical, bluntly rounded at the large (mi- 

 cropylar) end, smooth without central elevation, tapering consderably 

 to the small end ; smooth, the terminal fourth roughly granular with 

 large projecting granules. Dark brown, shading to black on the apical 

 fourth. 



Stage I. (Fig. 2.) — Head rounded elliptical, flattened, smooth, 

 with four coarse, black setae on the lower part of the face as in the 

 mature larva ; antennae long, divergent, rather thick with the middle 

 tufts very small. Black, paler above the mouth ; eyes black ; width 

 about .2 mm. Thorax short, wide, flattened; abdomen slender, seg- 

 ments submoniliform, subequal ; anal segment twice as long as wide, 

 cylindrical, weakly chitinized, the four anal finger-shaped processes 

 about half as long as the segment ; terminal hairs in a tuft above and 

 in a Jong brush below as usual. Air tube moderate, cylindrical, 

 slightly tapering, blackish chitinized, about four times as long as thick. 

 Hairs of the thorax long, equal ; those of abdominal segments i and 

 2 similar ; of segment 3 somewhat shorter and then successively 

 shorter, those of segments 7 and 8 only about one-third as long as 

 those of the first abdominal, but all similar hair tufts, differing only in 

 length. Lateral combs of segment 8 distinct, but without as strong a 

 plate as in the adult larva. 



Stage 11. — Head about .3 mm. wide ; at first pale with a dark shade 

 above, but soon turning black. Hairs of the thorax and first two ab- 

 dominal segments long, black ; the rest of the hairs short and stellate 

 as in the mature larva. 



Stage III. — Width of head about .4 mm. Other characters as in 

 the last stage, but the head more blackish. 



Stage IV. (Fig. 3.) — Head ovate, longer than wide, proportion- 

 ately small, pointed before, the antennae moderate, divergent. All 

 brown black ; width .6 mm. Thorax enlarged laterally, not annular, 

 flattened to the size of the abdomen dorso-ventrally. Abdomen uni- 

 form, tapering a little posteriorly; last segment moderate with the 

 usual four anal fingers. Eighth abdominal segment bearing the air 

 tube, which is rather short, not longer than two segments, widened 

 at the tip by four, distinct, flattened teeth, as long as the width of the 

 tube. Lateral comb a large plate with a row of stout teeth on the 

 posterior edge. All yellowish subopaque, the alimentary canal dark, 

 edged by the silvery tracheal tubes. Hairs black, the thoracic ones 



