LIFE-HISTORIES OF SAWFLIES. 5 
mas. niger, ventre rufo, clypeo et prothorace supra flavis. 
Long 8mm. Exp. alarum 17 mm. 
On the occasion of the annual excursion of the Society, on the 
2nd of July, 1871, I took for the first time some larve of 
Lophyrus virens, Klug, from which I was fortunate enough to 
rear the perfect insect. 
The larve were found for the most part on the ends of the 
hanging branches on the shady side of an avenue of little pine 
trees, or, properly speaking, of a rather wide path through a pine 
wood. It was not till near the end of the excursion that I found 
the first examples, so that I was only able to take a small number. 
The pine trees on which the larve were found were of the 
common species, Pinus sylvestris; the larve occurred at some 
distance from each other, and not associated in numbers as is 
usually the case with the Lophyri. Judging by the considerable 
distance at which one larva was found from another (I seldom 
saw two on one tree), I conclude that the eggs are laid separately. 
My larve were very nearly full-grown, and had but one more 
moult to undergo. The largest were twenty-eight millimetres 
long, the colour being grass-green, striped longitudinally with 
white (see fig. 1). The head is not circular in outline as in the 
well-known Lophyrus Pini, but elliptical (see fig. 2) ; it is shining 
pale grass-green, and has a black chevron descending from the 
vertex to the round black spots in which the eyes are placed; 
the chevron is thinner at the upper angle than towards the ends 
of the sides. The labrum and mandibles are brown, the latter 
with black tips. There is a broad dorsal line along the body of a 
grass-green colour, somewhat darker at the sides ; this line is often 
a little darker towards the middle also. Next to this, on either 
side, is a broad sea-green stripe with many transverse folds ; next 
to this a narrow dark green’ stripe, and then a grass-green one, 
in which are placed the very small orange-coloured stigmata ; 
this again is bordered by a line of raised folds, quite white, 
below which are the legs, pale green and twenty-two in number. 
The horny prolegs have exceedingly fine black longitudinal 
stripes on the upper side (see fig. 2). According to Hartig 
cer/ain variations are to be observed in this species as regards 
the markings on the head. In some examples the chevron above 
the eyes does not extend to the apex; in others this mark not 
