138 TWENTY-FOURTH REPORT ON TSE STATE MUSEUM. 



X. TRANSFORMATIONS OF LAGOA CRISPATA PACKARD. 



A cluster of eggs subsequently ascertained to be the deposit of this 

 moth, was found July 7th, 1869, at Center, N". Y., on the under side 

 of a leaf of Quercus ilicifolia, arranged somewhat in a segment of a 

 circle, three-eighths of an inch in length, and covered with a 

 yellow- white down. . ' \. 



The eggs are pale green, of an elongate-oval form, measuring 

 2-100ths by 45-1000ths of an inch in diameter. They were attached 

 to the leaf by their sides in two rows, with the enveloping down 

 extending beyond them on the leaf for a space somewhat exceeding 

 the longest diameter of the egg. 



Young larva. The larvae were disclosed July 13th, with a length 

 of 62-1000ths of an inch. They were of a pale yellow-green color, 

 and were thickly covered with long, soft, white hairs, many of which 

 were twice the length of the body. The larvae fed on the upper 

 surface of the leaf. 



First molt July 21st to 23d : larva lirnacodiform in appearance, 

 white, oval, flattened superiorly between the subdorsal rows of short, 

 cylindrical, fleshy, white tubercles, apparently nine hi number exclu- 

 sive of the terminal ones ; counting these last in the stigmatal row, 

 it consists of twelve similar tubercles ; from each of these tubercles, 

 long, white hairs of unequal length radiate, the longest of which 

 measure one-fourth of an inch. The head is not visible from above, 

 and the extremity to which it belongs is with difficulty distinguish- 

 able from the posterior when the larva is at rest. Its prolegs can 

 only be seen from beneath when moving on a transparent surface. 



Second molt July 28th : length of larva, 27-100ths of an inch, 

 diameter 12-100ths; the hairs are three-tenths of an inch long, 

 usually uncinate, more numerous than before and nearly concealing 

 the body. The larvae still eat only the upper surface of the leaf 

 within the veinlets. 



Third molt Commenced August 3d : length of larva, 31-100ths 

 of an inch, diameter, 15-100ths. Three rows of tubercles are visible 

 on each side of the body, of which the substigrnatal ones are round, 

 the lateral and subdorsal ones elliptical ; from these tubercles proceed 

 the long hairs, which, diverging and interlacing, cover the body. 



