THE ENTOMOLOGIST. o7 
I find the larve on the roses as early as May, and so on 
through the whole summer until the end of August; and in 
warm summers, as that of 1846, up to the middle of 
September. They always frequent the under side of the 
leaves, and eat out patches of the parenchyma, so that the 
leaves have a blotchy appearance, as I have represented at 
fig. 1. Afterwards, when the larve have moulted for the third 
time, they proceed to eat holes in the leaves and to gnaw the 
edges. 
The larva grows to a length of thirteen millemetres. Like 
the other Cladii, with the exception of Cladius viminalis,* it 
is flatter and broader than is usually the case with the larve 
of sawflies, and has twenty legs, the 4th and 11th segments 
of the body alone being apodal. In young larve the head is 
brown; in full-grown individuals it is really green, but 
covered with hundreds of minute brown points, so that, when 
observed without a lens, it appears of the latter colour; it is 
covered with comparatively long gray hairs; the eyes are 
placed in round black spots, and the trophi are brown. 
The body, which somewhat decreases in diameter towards 
the tail, is yellowish green, with a stripe of a darker tint along 
the back (fig. 2). On each segment there are three rows of 
little knobs (fig. 8) covered with very fine white hairs, those 
of the last row being longer and of a darker tint than those 
of the other two. Above each leg there are also two little 
knobs of a more elliptical shape, and likewise hirsute; these 
are placed the one obliquely below the other. The abdominal 
legs are entirely green; the more horny thoracic legs are 
glassy green, with brown claws. 
A few examples were green on the upper surface of the 
back, and pale sordid yellow at the sides, with two lines of a 
darker tint along the neck; one was entirely of a dull, 
ochreous gray colour, but appeared to be sickly, and in fact 
died before it had begun to spin up. Asarule the larve of 
this species are slow in their movements, and appear to crawl 
with difficulty. They spin up among fallen leaves, or in 
the cracks and crevices of the rose stems. ‘The cocoon is 
double, as represented at fig. 4; a being the outer, transparent 
loose tissue, and 6 the interior one, which is always oval and 
somewhat thicker, and is of a pale gray colour, or white. I 
* See ‘ Tijdschrift voor Entomologie,’ vol. i, p. 176, pl. 10. 
