THE VICTORIAN NATURALIST. 21 



they are placed. The feet, legs, and anal clasps are greyish 

 white. Length, 15 mm. 



After 2nd moult. — There is very little change except in size, 

 and in the fact that the white portions are a little clearer than in 

 the previous stage. 



After 3rd moult. — The ground colour is now dark yellowish 

 green. Head slate brown, with a white mark in front, like an 

 inverted V. The sides of the head are somewhat ovately swollen, 

 and very glossy, the mouth parts being pitchy. The 2nd segment 

 has 4 tubercles, the two larger on the anterior edge being dull 

 yellow. These are long, spinose, and slightly bent backward. 

 Below these are 2 shorter ones, also yellow, and on the disc are 

 2 small tubercles tipped with white. The 3rd and 4th segment 

 have each 6 tubercles, all tipped with dull yellow, the 2 sub- 

 dorsal being the longest. The 5th has only 4 tubercles, all long, 

 and having at their base some pale bluish spots. Posteriorly this 

 segment is purplish black. The 6th, 7 th, and 8th have 2 tubercles 

 each, all tipped with dull yellow. On the 9th the tubercles are 

 purplish black, springing from a dark oblique broad streak of the 

 same colour. The 10th and nth bear each 2 tubercles, dark 

 yellow, tipped with black, and those of the posterior segments are 

 dull yellow throughout, these tubercles being of the spinous 

 character. On the side of the 10th is an obliquely oblong patch 

 of purplish black, enclosing some white dashes. The lateral 

 region enclosing the spiracles is clear white. The anal segment 

 is dull greenish-white, with black blotches, and down the dorsal 

 region run 6 rather oblique lines of pale green, giving a mottled 

 appearance to the surface. The retractile tentacles of the 2nd 

 segment are dull crimson, and are truncate at their tips. Under 

 side wholly greenish-white, the feet and legs dull green, sur- 

 mounted by a purplish black line. Length, 30 mm. From this 

 stage there is no change to maturity, except in size. 



Chrysalis. — When viewed sideways the body is keel-shaped, 

 or much swollen below at the junction of the thorax with the 

 abdomen. The head bears two large broadly triangular 

 roughened processes, elevated above into a ridge. The thorax 

 also bears a roughened dorsal prominence, and is slightly ex- 

 tended laterally into two smaller ones. The wing-covers are 

 broad, and ridged outwardly, particularly where they touch the 

 abdominal segments. The abdomen tapers somewhat suddenly 

 to a point, the two basal segments bearing 4 slightly raised pro- 

 cesses, the dorsal pair being the largest. Beneath, the abdomen 

 is flattened and raised into lateral ridges. The colour is brown, 

 mottled with green and black, and the upper part of the abdomen 

 is dull whitish. The whole surface is rough, and there are 

 minute raised black points along the course of the tongue-case, 

 and on the basal portion of the thorax, while the markings of the 



