10 
CORN. 
and much more slender. The antennas have the same number of joints (seventeen), 
are pedunculated, and proportionally longer, being about two-thirds of the length 
of the body. The joints are ovoid in shape, becoming nearly globular towards the 
end. The terminal joint is not longer than the others, as in the female. The 
stalks are about half as long as the joints. The verticellar bristles are much longer 
than those in the female, and white in colour. The tuft of hairs on the end of the 
scutellum is also white. 
The abdomen is almost black, with a pink extremity, but is really marked in the 
same way as the female, with large square black spots, only being very slender they 
coalesce; thus the two lateral rows cover the dorsum, only leaving a narrow pink 
line down the centre, which is sometimes indistinct, and a pale streak across the 
edge of each segment. The spots on the ventral aspect hide the underlying colour 
altogether. The last joint of the abdomen is of a pale pink colour, and is provided 
with a pair of claspers or forceps of a brown colour, between which are seated the 
generative organs, the peculiar structure of which is now found to be of great 
importance in the determination of nearly allied species among various insects, but 
which it is very difficult to describe without the aid of figures. Two thick blunt 
processes, which project forwards, are placed between the roots of the forceps, each 
of which has a small rounded eminence on its extremity. Beneath and behind 
these, occupying a central position, is an elongated tapering organ extending nearly 
to the joints of the claws of the claspers, which is flanked on each side by a 
flattened hairy process with a dilated extremity. These organs are of a pink colour. 
The legs are rather paler than those of the female ; the fore coxas are pink. 
The wings are proportionably longer than in the female, and less nigrescent. 
Mr. Inchbald tells me that when they are first expanded, “a ruddy tinge is 
observable throughout the wing.” This is less conspicuous in the female. 
R. H. Meade. 
1, Mount Royd, Bradford, June 15, 1887. 
The above is given by kind permission of Mr. R. H. Meade, and 
also of Mr. Newman, proprietor of the ‘ Entomologist.’ 
First appearance in 1887 of the Hessian Fly from “ Flax-seeds,” 
OR PUPARIA, TAKEN FROM THE PREVIOUS YEAR’S CROPS AND PRE¬ 
SERVED IN ARTIFICIAL CIRCUMSTANCES FOR SPECIAL OBSERVATION. 
The following notes of observation of the puparia, or “ flax-seeds ,” of 
the Hessian Fly, up to the hatching out of the perfect insect, with which I 
was favoured by Mr. Peter Inchbald, of Fulwith Grange, Harrogate, are 
of much value, as coming from one so well known as a special observer of the 
Cecidomyiae. It will be seen that these notes give the change in the appear¬ 
ance of the “ flax-seeds ” which occurs just before the fly hatches out from 
them ; the time of day at which the hatching out takes glace; the proportion 
of males to females; the duration of the life of the flies ; and likewise the 
many weeks over which the successive appearances of these flies [that is, 
scientifically, the imago of Cecidomyia destructor, Say) extended. To 
these are added notes of appearance of the Hessian Fly in captivity, 
respectively a few days earlier and a few days later than recorded by Mr. 
Inchbald, namely, in the first case on or about May 18th,—certainly before 
