NORTH AMERICAN LEPIDOPTERA. 129 



palpi wliite; mandibles yellowish at base, becoming blackish toward tip; ocelli 

 black ; cervical shield somewhat paler than the head, almost colorless anteriorly, 

 its median line scarcely paler, without any markings, except a brownish or 

 blackish wart a little in front, above the stigma. Anal plate of the same color; 

 stigmata extremely small, except first and last pair, oval and pale brown. Pi- 

 liferous warts only about half the size of stigmata, very pale brown and iwlished, 

 each supporting a fine hair of a faintly yellowish color, of which those on the 

 posterior row of warts are much the longest, and are directed forward ; similar 

 long hnirs are also on the liead, thorax, around the margin of the anal plate, and 

 along the sides of the body. Legs concolorous with the body. 



Pupa. — Average length 7 mm. Brownish yellow ; stigmata brown. A dorsal, 

 dark brown, transverse band, anteriorly on last joint ; tip broad, almost straight, 

 having a small tooth at each angle, and along its inferior edge four fine, yellow- 

 ish brown bristles, twisted and directed forward. Abdomen slightly punctate 

 (Rilej*). 



Mr. J. B. 8mith, who discovered the moth, studied its habits and 

 ascertained its life-history, reports upon it in summary as follows : 

 At Cape Cod, Mass., the imagines were found flying from July 10th 

 to 16th. The eggs were laid upon the partially grown berries of the 

 cranberry. No eggs were laid on blossoms or very young berries. 

 One egg is laid on a single berry. The egg state lasts from six to 

 eight days; the young larva hatching, spins a few threads as sup- 

 ports, eats for a day or two on the outside and then burrows into the 

 berry. It eats out one, then goes to another, often ruining three or 

 four in a season. It generally leaves the berries for pupation in 

 September and October, though a few remain later. It pupates 

 under the ground, forming a cocoon of silk covered with earth. The 

 larva changes into a pupa in the following spring. The moths 

 emerge late in June or early in July. 



The insect was found commonly among the cranberry bogs of 

 Cape Cod, Mass., and more sparingly among the bogs of New Jersey. 

 I have also received specimens from central Texas. 



This species agrees in some of its specimens absolutely so far as I 

 can see with some specimens of indigeiiella. Thei'e are no points in 

 markings or coloration which do not have their counterjmrts. Of 

 course the species are distinct, in view of the larval history. But 

 all through the Phycitidte this difficulty is encountered, that species 

 in all that is superficial intergrade, or are in the main counterparts. 

 Often venation or other structure has to be studied to be certain to 

 which species the insect examined belongs. In the case of vaccinii 

 it seems to me the tuft at the summit of the basal member of the 

 antennae is always larger than it is in Indigenella. 



TRANS. AM. ENT. SOC. XVII. (17) MAY, 1890. 



