72 
HOP-FLY. 
to explain. In May, a fly lays a lot of eggs ; 
these eggs hatch and become blights ; these blights 
preceding joints, and rather longer than the fifth ; the rostrum reaches the 
middle hips, its tip is brown ; the eyes are red ; the sides of the forechest are, 
as usual, slightly notched ; the lubes are nearly one-fourth of the length of the 
body, and slightly decrease in thickness from the base to the tips ; the legs are 
moderately long ; the fore legs are considerably shorter than the hind legs ; 
the tibiae are very slightly bent ; the number of unborn little ones visible toge- 
ther is between thirty and forty, so homogeneous is the body, and so generally 
possessed of the reproductive faculty ; the horn on the front is sometimes 
slightly forked at the tip, and one specimen has a fore tibia quite black. 
The Viviparous Winged Female of the second Generation. — This acquires 
wings at the end of May, and in the beginning of June it repairs in great 
numbers to the hops, and in a few instances it continues there till the end of 
July : it is green ; the disk of the head and the mesothorax above and below 
are black ; there are a few black bands across the disk of the abdomen, and a 
row of large black spots on each side, the tip of the abdomen, like that of the 
wingless female, forms a short tube ; there is a conical protuberance in the 
middle of the front, the projection on each side is shorter than that of the 
wingless female ; the antennae are black, and a little longer or a little shorter 
than the body ; the base of the third joint is pale green ; the fifth joint is a 
little shorter than the fourth ; the sixth is little more than one-third of the 
length of the fifth ; the seventh is very much longer than the fourth ; the ros- 
trum is pale green, with a black tip ; the tubes are dull green, with black tips : 
the legs are pale yellow, and longer than those of the wingless female ; the 
thighs, especially the hind thighs, are black from the tips towards the base ; 
the tarsi and the tips of the tibiae are also black ; the wings are colourless ; 
the squamulfE are pale yellow ; the stigmata are pale brown ; the veins are 
brown ; the costal vein, a little beyond the middle of the fore border of the 
wing, begins to widen into the stigma, which is irregularly spindle-shaped, ra- 
ther long and narrow, and has a very slight obtuse angle on its hind border ; 
the branch veins are very distinct ; the first and the second are nearly straight; 
the third is obsolete near its source, and is forked soon after one-third, and 
forked again at two-thirds of its length, it is inclined towards the tip of the 
wing, and forms two very obtuse angles where it casts off its forks. The pupa 
is green, like the wingless female, but is elliptical, and has a narrower body. 
Irregularities in the Veins of the Wings. — 1st. The second fork is sent forth 
much beyond two-thirds of the length of the third vein. 2nd. The first fork 
does not begin till the middle of the third vein. 3rd. The second fork is 
wanting. 4lh. The first fork is wanting. 5th. The first fork is partly wanting, 
