Gi THIRD ANNUAL REPORT OP 



diameter of his abdomen which is slightly tufted and squarely cut off 

 at the apex. 



A full account was given of the larva in the article already re- 

 ferred to, and the proper, remedy for its injuries suggested, so that I 

 shall simply add below a technical description of it. Its habit of bor- 

 ing into some substances to prepare for the change to pupa, is invete- 

 rate, and it always neatly covers up the orifice so that it is difficult to 

 detect. I have had over a dozen of them enter a single cork but 1^ 

 inches in diameter and about an inch deep; and such a cork, if given 

 during May of one year to an uninitiated person, with instructions to 

 keep it in a glass vessel, will cause much surprise and interest the 

 following March when the moths will begin to issue from it. 



Dr. Melsheimer* wrote to Dr. Harris on the 28th of February, 

 ISiO, that he had bred this moth from the larva, and rightly states 

 that recent specimens are not brown, and that the larva is a half 

 looper; but he does not mention its food-plant. Dr. Packard,! who 

 does not mention the sexual differences, quotes Harris as stating on 

 the authority of Abbott, that the larva ieeds on the wild Trumpet- 

 creeper (Bignonio radicans) in Georgia. But no one has heretofore 

 mentioned its Grape-vine feeding propensities, and itis consequently 

 now added r or the first time to Our list of Grape-vine depredators, 

 and there arfe four instead of three bluish caterpillars, all bearing a 

 close general resemblance, which feed upon that plant. They all 

 occur in Miss^ri, but the present species is far more numerous and 

 destructive than the other three put together. I have now described 

 three of them, and shown wherein they differ from one another, and 

 the fourth, namely, the larva of the Pearl Wood Nymph, is said by 

 Dr. Fitch to so closly resemble that of the Beautiful Wood Nymph 

 that we know not yet whether there are any distinguishing charac- 

 teristics between them. 



PsYcnoMORriiA ei'imenis, Drury — L<jrva.— General appearance bluish. The ground-color i? 

 however pure white, and the apparent bluish cast is entirely owing to the ocular delusion pro- 

 duced by the white with the transverse black bands as in Ahjpia octomaculata. Transversely 

 banded with lour black stripes to each joint, the third and fourth being usually rather wider apart 

 than the other two, and diverging at the lower sides where they make room for two more or le?> 

 conspicuous dark spots placed one below the other; the third on some of the middle joints is fre- 

 quently broken, with an anterior curve, justabove stigmata, and on joints 2 and 3 it is twice as thick 

 as the rest. Cervical shield, hump on joint 11, anal piate, legs and venter, dull pale orange* 

 Joint 1 with about 14 large shin}- piliferous black spots, 8 of which form two rows on the cer- 

 vical shield (those in the anterior row being largest and farthest apart,) and six of which are late- 

 ral, namely, three each side, with more or less distinct dusky marks between and in front of them. 

 The spots on the hump are usually placed as at Figure 26, c, but vary very much, though the four 

 principal ones on the top are generally placed in a square. The anal plate is marked with 8 such 

 xpots, very much as in the cervical shield, but smaller. The tips of the thoracic legs are black 

 and the other legs and venter are also spotted. Head gamboge-yellow, inclining to orange, with 

 S principal and other minor black piliferous spot?. The ordinary piliferous spots are small, and 

 except two dorsal ones which are in the white space between the second and third band, they are 

 not easily detected. The stigmata are also quite small and round. The abdominal prolegs de- 



* Ilarr. Corr., p. 111. 

 •j- Guide, etc., p. 281, 



