21 
I_ 
n the 4th of July, however, adults, (now certainly of the second 
id) were secured at Du Quoin, in sweeping stubble of wheat which 
i been previously infested by the larvae. From this time forward, 
lough continuous collecting was in progress, and fields of stubble, 
.wberry fields, meadows, and other favorable situations were re- 
tedly swept, Meromyza does not occur in our collections until 
7th of September, at which time it was found in abundance in 
able fields near Centralia. Winged individuals of this brood were 
ected by Dr. Fitch, in “the latter part of June;” and by 
f. Riley during the first week in July; and some of Mr. Lint¬ 
’s specimens emerged as late as August 1. 
)n this point, Lintner remarks: “Although Dr. Fitch mentions 
occurrence of this fly in wheat fields during the latter part of 
le, it appears that the first week in August is within its period 
apparition in the State of New York, and, as indicated by the 
tx still unchanged at that time, the flies will continue to emerge 
oughout the month of August, and perhaps into September.” 
? jgg .—Some of the adults obtained May 23d, from wheat fields 
,r Decatur, were placed together in a bottle, and there they copu- 
3d, and afterwards laid eggs. May 24, a number of adults, male 
1 female, were confined in a breeding cage at the Laboratory with 
ols of growing wheat, and on the 30th May it was noticed that 
eral eggs had been deposited on the stems. Some of these were 
shed down beneath the ensheathing bases of the leaves, about 
inch above the surface of the soil, while others were cemented 
the stem just at the margin of the sheath. One was found at- 
hed to a piece of dried vegetation, and another upon the stem 
a growing weed in the breeding cage. These eggs were deposited 
gly, and placed lengthwise with the stem. June 26, at Warsaw, 
'ew of the eggs were found attached to the stalks, not yet hatched, 
ese were usually placed along the edge of the sheathing base of 
i leaf, above the upper joint, sometimes being thrust a little way 
der the edge; and once an egg was found entirely within the 
Bath, about an inch from the upper end. 
Recapitulation of Life History. 
Prom the above, we can infer with certainty the existence of two 
Dods of this insect, the larvse.one appearing in autumn and of the < 
j ier in summer. It must be admitted, also, that we have not ex- 
ided the bare possibility of a third brood, at least under favorable 
■cumstances, which may develop in August and September in volun- 
3r wheat and rye, or possibly in grass, or some other plant. There is 
ly the fact that we were unable to find the adult fly or, indeed, 
b insect in any stage, anywhere in situations supposed most favor- 
! le to it, in either July or August, to suggest the possibility of a 
ird brood in this latitude. 
i Assuming that there is no such brood, we find the life history to 
, about as follows: The eggs from the autumnal brood of the 
hs are doubtless laid as soon as the wheat is ready for them, a 
nclusion supported by the fact that the adults have already been 
I 'road many weeks—ever since the preceding harvest, and also by 
k . 
