EDWARDSIA W-ALBUM. 



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the uppersurface. The prolegs have crochets at the anterior and 

 posterior ends of the inner margin (Chapman, June 2nd, 1905). 

 Larva laid up for moult in penultimate instar: Length 7mm., width at 

 2nd abdominal 2-7mm., height 2-5mm. Seen from the front the 

 dorsal ridges are far apart ; the space between the dorsal setse (i or ii) 

 about l*0mm. ; the "slopes" flat, about l*8mm. across, and the dorsal 

 and lateral ridges rather sharp. Seen dorsally, it narrows a little, 

 2 , 7mm.-2-0mm. from the 2nd-7th abdominal segments, and continues 

 the same narrowing to the 9th abdominal, the rounded end involving 

 little more than the 10th abdominal ; in front, narrowing also, the 

 rounded end involving the pro- and mesothorax. Seen laterally, it 

 slopes from the 2nd abdominal backwards, but less rapidly at first. In 

 front, the mesothorax overhangs the prothorax, so as to make the pro- 

 thorax seem of a different set from the other segments, protruding 

 beneath it, much as the head does below prothorax, and is to some 

 slight degree retractile in the same manner. From the 2nd to 6th 

 abdominal segments, the incisions, dorsally, are deep, each segment 

 standing up as a rounded eminence. The colour is green, with darker 

 green down the dorsal flat (or groove) almost yellow on the dorsal 

 ridges, on the first oblique line, slightly on the second oblique line, 

 behind spiracles, and on the lateral flange. The separation of the 

 dorsal ridges forwards is not marked, and has to be looked for. The 

 hairs are numerous, generally distributed, aad short ; they are more 

 numerous and dark along dorsal ridge, less abundant in spiracular 

 region. They are paler, longer, and more numerous along the lateral 

 flange, and form a fringe to larva as seen from above. There are, also, 

 on the summit of each segment, one on each side, a series of longer 

 hairs on the dorsal ridges, dark, and curved inwards and backwards 

 (about 0'5mm. long), another, two-thirds the length of this, is a little 

 way in front of it. The general surface hairs are about 01mm. long. 

 Seen dorsally, the colour scheme might be described as greenish- 

 yellow, with a green dorsal line, and a green oblique line on each 

 segment. This green line is below the ordinary first oblique line, 

 which is in the yellower portion. True legs black (Chapman, 

 May 24th, 1906). Final instar (about halfgrown): Very similar to 

 previous skin, but markings much more pronounced, in sense of being- 

 darker, lighter, and more crisply outlined. Present length 11mm. 

 when at rest, widest at the 3rd and 4th abdominal segments, where it 

 is about 35mm. wide; very nearly the same width from 2nd thoracic to 

 5th abdominal (can draw itself up so that it is only 8mm. long and 

 5mm. high, so that relative dimensions differ greatly). The pro- 

 thorax gives rounded semicircular end in front, and it tapers to the 

 other end to the round semicircular end of the 10th abdominal, which 

 is only about 1mm. wide, whereas the prothorax is 2-5mm. wide. 

 Head quite underneath in this attitude. Lateral view : The larva 

 slopes more gradually behind than in front ; the 7th, 8th, 9th, and 

 10th abdominal segments slope behind ; in front of this the dorsal 

 margin has a serrated edge, each segment carrying one element 

 thereof ; these are less pronounced and more rounded in front, until 

 the 2nd thoracic is rounded and almost flat ; the height at the 7th 

 abdominal l-8mm., at the 5th abdominal 3-5mm.,at the 3rd abdominal 

 3-5mm., and at the 3rd thoracic 2-5mm. On this lateral view one 

 notices the yellow lateral line at about 1mm. from lower edge, or 



