401 
The remedy employed by Mr. Falconer consists in simply pulling off 
and destroying the infested leaves as soon as the mines are discovered, 
and he reports that this method proved entirely effectual. 
A CECIDOMYIID INJURIOUS TO THE GARDEN POPPY. 
A somewhat extended search, through the literature on this subject 
has failed to reveal a single recorded instance where a cecidomyiid of 
any kind has been bred in this country from any portion of the garden 
poppy. In Europe, however, two different species are known to attack 
it, both of them confining their depredations to the seed -pods, and it 
is somewhat curious to note that the larvae of both of them are not 
infrequently found infesting the same pod. One of these species 
belongs to the genus Cecidomyia, while the other pertains to the closely 
related genus, Diplosis. 
On July 7, 1893, Mrs. Celia Thaxter sent the Department a package 
of Iceland poppies (Papaver nudicaule) the stems of which were infested 
with pale, rose-colored cecidomyiid larvae; these occurred in consider- 
able numbers in the interior of the plants near the roots. The plants 
were from Mrs. Thaxter's famous garden on the Isles of Shoals, off the 
coast from Portsmouth, X. H. 
In the breeding cages the adults began to issue Juty 15, and continued 
emerging up to the 22d of the same month. They belong to the genus 
Diplosis, and clearly represent a new species, which is duly character- 
ized below. They differ in too many respects from the European species 
of Diplosis, which also infests the poppy, to be considered identical 
with it. in addition to the fact that they attack a different part of the 
plant. The kinds of poppies attacked by these two species are also 
different, the European species depredating upon Papaver rhceas and 
P. dubium. while the p>resent species is thus far known to attack only 
P. nudicaule. 
The fact that it is found to infest an introduced plant would seem to 
indicate that it likewise is a native of some foreign land and had been 
imported into this country with its food-plant, were it not for the 
further fact that with us this plant is almost without exception grown 
from the seed. 
Diplosis caulicola n. sp. 
Male. — Antenna? yellow, twice as long as the body, 15-jointed (or, counting each 
enlargement a joint, 28-jointed); the first two joints simple, each of the others with 
a globose basal and a long median enlargement, the latter constricted slightly 
before the middle, nearly twice as long as the slender portion on either side of it, 
the bulbous basal portion of the joint subequal in length to the slender portion in 
front of it; each enlargement bears a whorl of rather long bristly hairs, those on the 
upper side being of nearly the same length as those below. Head black. Thorax 
yellow, marked with three brown vitta?; scutellum yellow, its base brown. Abdo- 
men wholly yellow; halteres and legs dusky yellow. Wings grayish hyaline, the 
veins yellow: first vein lying close to the costa, in which it terminates at three- 
sevenths of the length of the wing; second vein strongly curved toward its tip. 
