. Bulletin. 11. White-Marked Tussock-Moth. Full grown caterpillar.—After Riley. These eggs hatched May 10, and the caterpillars passed theirmolts (the description of which is omitted here) and reached maturityJune 15. The full grown caterpillars. Fig. 11, are about an inchand an eighth in length, of a bright yellow color, si)aringly clothedwith long, fine yellow hairs on the sides of the body, and havingfour short, thick, brush-like, yellowish tufts on the top of the fifthand the three following segments, two long black plumes or pencilsextending forward from the sides of the second segment, a
. Bulletin. 11. White-Marked Tussock-Moth. Full grown caterpillar.—After Riley. These eggs hatched May 10, and the caterpillars passed theirmolts (the description of which is omitted here) and reached maturityJune 15. The full grown caterpillars. Fig. 11, are about an inchand an eighth in length, of a bright yellow color, si)aringly clothedwith long, fine yellow hairs on the sides of the body, and havingfour short, thick, brush-like, yellowish tufts on the top of the fifthand the three following segments, two long black plumes or pencilsextending forward from the sides of the second segment, and a singleplume on the top of the twelfth segment. The head and top of thesecond segment and also two retractile tubercles on the top of thetenth and eleventh segments are bright red ; there is a narrow blackor brownish stripe along the top of the back and a wider dusky stripeon each side of the body. 14. a b c d Fig. 12. White-Marked Tussock-Moth. o, Female on cocoon; h, young caterpillar; c. female pupa; d, male pupa.—After Riley. On June 15. they commenced spinning their cocoons and the mothsemerged June 21. After mating, the females laid their eggs on theold cocoon which they usually attach to a leaf adhering to a branchof the tree. These eggs of the second generation hatched July 8,passed their transformations, and pupated August 10. The mothsof this brood emerged August 23, and laid their eggs which remainedthrough the winter and hatched the next spring, thus giving twogenerations a year in this State. Fig. 12, a, represents the cocoonpartially covered with the egg cluster upon which is represented thewingless female moth ; 6, a young caterpiller suspended by a thread ;e, a female pupa, and cZ, a male pupa.
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