150 TURNIP. 
and my own observations, in the unripe pods of Rape, often up to 
fifty or sixty in one pod. In such great numbers they are injurious 
to the Rape seed, so that the pods swell or burst, become yellow and 
prematurely ripe, or their growth is entirely ruined. 
‘‘The larva is three-quarters of a line to a line in length, milk- 
white, with a yellow food-canal. The entire surface has the appear- 
ance of being granulated, and the hinder edge of the penultimate ring 
is edged with bristly hairs.” 
The specimens sent me by Mr. Sim on October 12th agreed well 
in general characteristics with the above description; the measurement 
was the same, and they were milk-white in colour, and the granulation 
of the surface was also noticeable, but I had difficulty in finding the 
anchor-process. This, however, | found on some specimens forwarded 
to me by Mr. Sim on October 19th. 
This process (for position and form see accompanying figure) was 
of the usual form found in Cecidomyia maggots,—that is, a sort of 
CEcIDOMYIA LEGUMINICOLA.—American Clover Seed Midge and maggot, much 
magnified; maggot about one-twelfth of an inch in length. 
stem or short narrow organ attached at one end to the lower side of 
one of the segments near the head, and pointing forward; the free end 
enlarged. In this case the stem was parallel-sided for about three- 
fifths of its length, and then swelling out, the extremity being about 
twice the width of the stem, flattened at the end, and not deeply bifid, 
nor yet with the sides curved back like the flukes of an anchor, but 
simply slightly ‘‘ emarginate ” (that is, with a slight indentation or 
notch) at the free extremity. 
The ‘‘anchor-process,” or ‘‘ breast-bone,’’ was not nearly as ob- 
servable as is often the ease with Cecidomyia larve; but by carefully 
clearing out all the contents, so as to reduce the maggot to merely an 
empty skin, I was able to get a good observation. 
As at the time I had not convenient opportunity for figuring the 
larva, and the imagos were too much injured for representation except 
