728 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



having quite similar larval habits. During the past summer I succeeded in getting 

 the moth of one of them; it is an .lEgerian, as I think, undescribed, but I would not 

 venture upon describing it had I only the imago ; but as I am able to give mainly its 

 history, and having done so much tramping and climbing for its sake, that I have 

 come to feel a proprietary right, I undertake to name and describe it as new. As its 

 proposed name implies, the larva inhabits the pine, boring under the bark and into 

 the superficial layers of the wood. From the wounds thus made pitch exudes, which, 

 through the action of the larva and the warmth o^ the sun, forms hemispherical 

 masses over its burrows ; in these masses the pupa cells are finally prepared and the 

 inactive stage passed. The larva occurs more frequently than elsewhere just below 

 a branch; sometimes about the border of a wound made by the axe,' or where a limb 

 has been wrenched off by the wind ; rarely in the axil of the branch. It appears to 

 attack larger trees than the Zimmerman's pine pest, and more frequently occurs at 

 considerable altitude. I have taken them 30 to 40 feet from the ground. While 

 they sometimes, perhaps as a rule, take advantage of the broken cortex, I have 

 found them where it appeared that they had worked through the same into the soft 

 layer. 



I have found the larva in the following localities : Hastings Center, N. Y. ; Portage, 

 N. Y. ; Buffalo, N. Y. (?) ; Point Abino, Ontario. At the first-named place they were 

 found in several instances numerous enough to seriously injure trees of moderate 

 growth. I have taken the larvae in autumn from 0.5i5 to 0.75 of an inch in length; 

 they finally attain a length of 1 to 1.1 inch ; diameter quite uniform, O.lti of an inch. 

 Color white ; head light brown, flattened ; first thoracic ring slightly clouded with 

 brown, smooth ; no trace of an anal shield ; true legs scarcely colored, prolegs promi- 

 nent, crowned with two rows of about eight hooks each. The brown hairs arise from 

 papillse, the base of each hair beiug surrounded by a brown annulation. The spira- 

 cles are but slightly elliptical, last pair large, placed subdorsally. 



Before transforming they prepare a cell in the extruded pitch mingled with their 

 debris; this they line with silk, but spin no other cocoon. While in their burrows 

 they move through the soft pitch with impunity, but if removed from the same they 

 soon die from the incumbrance of the hardening pitch adhering to them. 



I have found the pupa the last of May ; the moth appears from the middle to the 

 eud of June. It may be that others come in July and August, for I have found larvae 

 apparently full grown in July. On the 15th of July I brought to my rooms, devoted 

 to the rearing of insects, some blocks of wood containing such apparently mature 

 larvae, expecting them to complete their transformations in a few weeks at most ; 

 they are still in the pitch cells unchanged (November). Is it a case of retarded 

 development, due to the drying of the bark and wood ? 



The pupa has a length of 0.73 of an inch. Color light brown with the extremities 

 dark. Over the dorsal portion of the abdominal rings are the usual rows of teeth ; 

 those on the anterior margins scarcely extend below the spiracles. The clypeus is 

 without a pointed process ; the medio-dorsal ridge of the thorax is unusually promi- 

 nent. 



When about to transform it bores through the pitch wall aud escapes, leaving the 

 pupa skin protruding. 



The moth (female) expands 1.2 inch. Forewings opaque ; hind wings transparent. 

 Color blue-black, as follows: forewings, the clothed portions of hind wings, head, 

 palpi, thorax, upper part of abdoiuen, antennae, and legs. The neck fringe and the 

 sides of the collar are orange, also the ventral side of the abdomen and the tail 

 fringes, as well as a band on the fourth abdominal ring. The antennae are long, 

 slightly enlarged toward the end ; there is a decided orange line on the underside of 

 the antennae for one-third their length; the tarsi are smoky. The male is smaller, 

 but marked the same as in the female. (Canadian Entomologist, xiii, pp. 5-7, 157, 

 1881.) 



