INSECTS OF THE HOP HOENBEAM. 649 



up with dispersed grains of frass, and which is dark brown whilst the 

 larva is mining. 



Larva. — Very slender, of nearly uniform diameter, terminal segme^nts pointed, pale 

 green, with a darker green central line ; head pale brown. 



It should be sought early in September. 



On the 14th of the month it is nearly full-fed. (Clemens.) 



8. LithocoUetis ostryw/oliella 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. — The larva is cylindrical, with the body pale yellow, colored on the dorsum 

 beyond the third segment dark green by the ingesta. 



Moth. — Antennte silvery. Front silvery, tuft fuscous and silvery mixed. Thorax 

 silvery, with the basal part of tegulie pale golden. Forewings pale golden, with an 

 unraargined, 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. Synerinthus juglandis Ahb.Sm. Sept. 5, N. Y, Lintner. 



10. Telea polyphemus (Cram.) W. Brodie (Can. Ent.). 



11. Anisopteryx pornetaria (Harris.) Providence, R. I., May and June. 



12. LithocoUetis corylieUa Chambers. 



13. LithocoUetis tritceniceeUa Chamb. Larva in a roundish blotch mine 



in the upper surface of the leaves. 



14. ^cea ostryceeUa Chamb. Larva in a flat mine between two ribs, 



with a row of *' frass " on each side. 



15. Oracilaria ostryceeUa 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 Curculionid 



larva makes a tentiform or bladder-like mine in the tips of the 

 leaves of the iron -wood. 



Order Hemiptera. 



17. PsyUa carpifii Fitch. 



