498 
ANNUAL REPORT OF NEW TORE 
CABBAGE FLY. PUPA AND FLY DESCRIBED. 
flattened, with two elevated tawny yellowish dots or spiracles on 
the disk, and around the margin is a row of twelve conical fleshy 
points, the lower two larger and forked at their tips, the next one 
on each side equally long hut narrower and acute-pointed, and 
forward of these last is another transverse row of similar points. 
The pupa is formed by the larva’s contracting into an oval form, 
about 0.20 long and 0.07 thick, the size, however, varying in dif¬ 
ferent examples, and the external skin becomes dry, stiff and hard, 
of a yellowish white color at first, but gradually growing darker 
until it becomes chestnut-brown, continuing to show on its surface 
the sutures of the larva more or less distinctly, and the little 
points around the margin of the hind end w.hich were soft and 
flesh-like in the larva are changed to dry hard immovable teeth or 
spines. This dried and hardened outer skin now forms the case 
or cocoon, within which the real pupa is contained, which shows 
upon its surface the legs and wings of the future fly in their rudi¬ 
mentary state. 
It lies dormant in the ground about a fortnight in its pupa state, 
and then gives out the perfect insect, which is a two-winged fly, 
resembling the common house fly, but somewhat smaller in size, 
measuring 0.20 in length to the end of its body, and 0.26 to the 
tip of the closed wings. It is of an ash-gray color, and with three 
black stripes on the thorax or fore body, and on the hind body a 
black stripe along the middle of the back, and a black band upon 
each of the sutures. In the male the head is silvery white, the 
eyes coppery red in the living specimen, and very large, nearly in 
contact above — having between them a black stripe, which is much 
broader at its commencement at the base of the antenme. The 
antenum, feelers, and legs arc black. On the crown of the head, 
the legs, and the hind body are black bristles, and on the fore 
body are coarser ones arranged in rows. The hind body is of a 
cylindric-eonic form, its under side with a black stripe in the mid¬ 
dle and black bands on the sutures, similar to the upper side. 
The wings are hyaline, ciliated with fine bristles along the outer 
or costal edge nearly to the tip. At the‘apex of the first vein is 
a slight notch, where is a coarser bristle. 
The female differs in having the eyes smaller and farther apart, 
and the black stripe between them is much broader, and is tinged 
with tawny red in its middle, and forked at its upper cud, with a 
small black spot between the forks. The black stripes on the fore 
