374 
Journal of Agricultural Research 
Vol. VII, No. 8 ■ 
deep black, irregular dashes, of which the fourth from tomus is the longest and placed 
farther outward, so as to break the outer metallic edge of ocellus; the line of black 
dashes as well as the adjoining bluish metallic lines are continued faintly above the 
ocellus in a curve to the last geminate costal spots; there is an indistinct, black apical 
spot and two or three small black dots below it; a thin but distinct, deep black, termi¬ 
nal line before the cilia; cilia dark bronzy fuscous. Hind wings dark brown with costal 
edge broadly white; cilia whitish; underside of wings lighter fuscous with strong irides¬ 
cent sheen; abdomen dark fuscous with silvery white underside; legs dark fuscous 
with inner sides silvery; tarsi blackish with narrow, yellowish white annulations. 
Alar expanse: io to 15 mm. 
United States National Museum type 20664. 
The present species is very similar to the European Laspeyresia fune- 
brana, which is an important enemy of stone fruits in Europe, and it was 
at first supposed that it might be this European species which had been 
accidentally introduced into America, but several minor discrepancies 
both in the ornamentation of the moth and in the biology of the larva 
made this determination uncertain, and specimens were therefore sub¬ 
mitted to the European specialists, Messrs. Edward Meyrick and J. H. 
Durrant, both of whom pronounced the species distinct from L. funebrana 
and unknown to them. 
There are several American species closely allied to Laspeyresia molesta , 
but it is unlikely that the species is a native of this country; it has more 
probably been accidentally introduced from Japan, where closely allied 
species also occur, though the present species has not hitherto been 
reported. The theory of the Japanese origin is strengthened by a single 
specimen of a species of Laspeyresia which was reared from a shipment 
of pears from Japan to Seattle, Wash. The writers are unable to differ¬ 
entiate this specimen from those reared from peach in the East, and 
believe it to be the identical species. 
Among the American species Laspeyresia molesta may easily be con¬ 
fused with ( Epinotia ) Laspeyresia pyricolana Murtfeldt, which not only is 
very similar both in adult and larval stages but which has similar bio¬ 
logical habits and has also been reared from peach in the vicinity of 
Washington, D. C. 
Laspeyresia molesta is, however, a larger and less mottled species, 
without the dark-brown transverse facia on the forewing found in 
L. pyricolana; the hind wings are more rounded, especially in the males, 
and not so triangular as in L. pyricolana . The males of L. pyricolana can 
at once be distinguished by a large patch of black scales on the upper 
surface near the base of the hindwings and by a similar black patch on 
the underside of the forewings; no such ornamentation is found in the 
males of L. molesta . 
FULL-GROWN LARVA 
Thirteen to fifteen mm. long; whitish suffused with pink; tubercles minute, black. 
Head light brown with darker brown markings; hind margin, ocellar area, and the 
tips of the trophi black. Thoracic shield light yellow, edged with brown. Spiracles 
small, circular, dark brown. Anal plate blackish fuscous. Legs and prolegs normal. 
