248 THE ENTOMOLOGIST. 
with my insect, so that I was obliged to bethink me of a 
name; and, in consideration of its near relationship to 
Nematus ventricosus, I called it Nematus consobrinus. The 
points of difference between the two species are shown in 
plate 10, and will appear from the following description. 
After I had already been in possession of full-grown larve, 
some very young examples were sent to me on the 2Ist of 
May, 1870, from Haarlem (fig. 1): they had shining black 
heads and black thoracic legs; the body was sordid pale 
green, having a few, but rather large, black spots on the back 
and sides. ‘The full-grown larve are represented at figures 
2 to 6; the description is as follows:—Head shining green, 
with numerous little black spots on the vertex, placed in 
curved rows, and reaching to the clypeus; each of these 
spots bears a hair. Eyes inround black spots at each side 
of the head. Body cylindrical, with twenty feet; colour sap- 
green, with yellow and bluish green. The Ist segment is 
almost entirely yellow, as are also the large folds of the skin, 
or rather protuberances, on the sides of the 2nd and 38rd 
segments (faint); segments 4 to 10, and almost the whole of 
the 11th, are also yellow. The penultimate segment and the 
first half of the terminal segment are bluish, the other half of 
the latter being yellow. The dorsal line is very narrow, and 
somewhat bluer green than the ground colour. The segments 
have transverse rows of little, black, shining, wart-like spots, 
each bearing a hair. On either side of, and close to, the anus 
is a yellow spine, having a black tip. 
The larve were in considerable numbers together; they 
were very voracious, and stripped a branch pretty speedily ; 
their usual posture was that shown at fig. 3, or even a little 
more bent,—sickle-shape. About the 26th of May they 
changed their skin for the last time, when all the little wart- 
like projections or points, and all the hairs, disappeared. 
The head was now pale green, smooth and shining, but the 
eyes were still situate in round black spots; the jaws were 
brown. The body was of the same green tint as before, the 
dorsal line being blue and thicker; also there was more 
orange-yellow on the whole of the Ist segment, as also on 
the folds above the thoracic legs, and on large spots at the 
sides; the entire 11th segment was of this colour, as also the 
12th, or last, at the anus. — 
