51 
in these groups.) That this Plochionus had not appeared this season 
much to the east of St. Louis was evinced by the much webbed and de- 
foliated orchard and forest trees noticed in Illinois and Indiana in Au- 
gust and September. 
As Mr. Duffey proposes soon to publish a history of the insect, with 
detailed descriptions of its various stages, I defer offering my own notes 
upon its habits and forms until after the appearance of his paper. 
A FEW MORE INJURIOUS MICROS ON APPLE. 
A very considerable number of Microlepidoptera, including Pyralide, 
Phycitide, Tortricide, and Tineidw, have already been characterized 
and catalogued among the more or less injurious insects of the orchard 
and garden; but the observations of almost every year add to this list, 
and I propose here to briefly describe a few which have not as yet been 
placed on the roll, but which in this locality are annually so numerous 
as to commit appreciable injury. 
PENTHINA CHIONOSEMA, Zell.—The larve of this beautiful species 
were, last year, uncommonly abundant during the month of May on the 
leaves of apple, particularly in young orchards. They fold the leaves 
at the midrib, or sometimes one edge over to the midrib, fastening the 
edges all around firmly and feeding upon the inclosed upper surface. 
Larva.—The larva is not especially characteristic, being of a pale opaque green 
color, without maculation, except the rather inconspicuous glassy piliferous plates. 
Head pale yellow, tinged with green, legs similarly colored; length from 16 to 17™™; 
diameter, 3™™. Form subcylindrical, tapering but slightly either way from middle, 
When full grown it incloses itself under a rolled edge of the leaf, 
lining and strengthening the tube thus formed with a white silken web. 
The moth appears early in June, and I have no record of a later brood, 
although there may be one. 
The original description, by Professor Zeller, is not accessible to me 
at present, but it will suffice to note the following characters : 
Palpi and tuft of the head rich ferruginous, antenne scarcely half the length of 
the wing, fine, gray brown. Thoracic tuft dark brown. Wing expanse from 15 to 
16 ™™—rather more than a half-inch. Ground color of primaries somewhat mottled 
dark brown, with a slight suffusion of olive, diversified by three broad, indistinct, 
irregular, obliquely transverse bands of purplish gray, having a somewhat metallic 
reflection; these transverse bands broaden toward the inner margin, where they 
almost coalesce. On the costal edge is a large, milk-white, rounded triangular or 
nearly semicircular patch, extending along the costa from the middle third, in- 
clusive, almost to the apex, constituting a most distinguishing and ornamental 
character. Cilia purplish gray. Secondaries, silky, pale brown with lighter fringes. 
Abdomen and legs pale brown. Under side of wings pale, rosy brown, the large 
costal spots on this side inclining to orange. 
PROTEOPTERYX SPOLIANA Clem.—The larva folds and webs into 
clusters the young leaves of apple during the month of May, appear- 
ing, preferably, on the shoots of small trees. 
