INSECTS OF THE HOP HORNBEAM. 649 
op with dispersed grains of frass, and which is dark brown whilst the 
larva is mining. 
Larva. — Very slender, of nearly uniform diameter, terminal segments pointed, pale 
greeu, with a darker green central line; bead pale brown, 
It should be sought early in September. 
On the 14th of the month it is nearly full-fed. (Clemens.) 
8. Lithocolletis ostrycpfoliella Clem. 
The larva mines the under side of the leaves of Ostrya, and may be 
found early in July and October. The mine is usually near the margin 
of the leaf, is flat at first, but is gradually thrown into a fold, the sep- 
arated epidermis corrugated. When completed the epidermis has 
changed to a pale brown color. The larva undergoes its transforma- 
tion in a cocoon composed of " frass" and silk, in the form of a small 
ovoid ball suspended within the mine. The imago appears in August 
and May. (Clemens.) 
Larva. — Tbe larva is cylindrical, with the body pale yellow, colored on the dorsum 
beyond the third segment dark green by the ingesta. 
Moth. — Antennae silvery. Front silvery, tuft fuscous and silvery mixed. Thorax 
silvery, with the basal part of teguhe pale golden. Forewings pale golden, with an 
unmargined, median, silvery basal stripe, and a silvery streak along the basal portion 
of the inner margin. Forewings pale golden, with four silvery costal streaks, all 
except the last black-margined internally ; with two dorsal streaks of the same hue, 
black-margined internally. The first costal and first dorsal streaks opposite, quite 
oblique and broad at their bases, the second dorsal opposite the second costal streak. 
The basal streak is moderately broad, and extends quite to the middle of the wing. 
Apical spot black ; hinder marginal line blackish; cilia fulvous gray. Hind wings 
gray, cilia fulvous gray. Abdomen pale fulvous. (Clemens.) 
The following insects also occur on this tree : 
Order Lepidoptera. 
9. Smerinthus juglandis Abb.-Sm. Sept. 5, N. Y. Lintner. 
10. Telea polyphemus (Cram.) W. Brodie (Can. Ent.). 
11. Anisopteryx pometaria (Harris.) Providence, R. I., May and June. 
12. Lithocolletis coryliella Chambers. 
13. Lithocolletis tritceniceella Chamb. Larva in a roundish blotch mine 
in the upper surface of the leaves. 
14. Mcea ostryceella Chamb. Larva in a flat mine between two ribs, 
with a row of li frass" on each side. 
15. Gracilaria ostryceella Chamb. Imago unknown. The larva when 
very small makes a linear, whitish mine in the upper surface of 
the leaves. (Chambers.) 
Order Coleoptera. 
16. Weevil. The late Mr. Chambers once wrote me that a Cucculionkt 
larva makes a tentiform or bladder-like mine in the tips of the 
leaves of the iron -wood. 
Order Hemiptera. 
17. Psylla carpini Fitch. 
