LIFE HISTORY AND HABITS OF LAURON VINOSA DRURY 109 



The following descriptions of larvae, pupa, and adult are from reared 

 specimens. 



Larvae just after issuing from the eggs cire about 2.5 mm. long, the 

 head about 0.5 mm. w^ide. The body is dirty white, moderately cov- 

 ered vsdth black hairs, the longest about 1 mm. The eyes aie shining 

 black, the mouthparts brownish black, the cervical shield, tubercles, and 

 markings on the legs black. 



The larva takes on a greenish tinge after feeding and the fourth, fifth, 

 tenth, eleventh, twelfth, and thirteenth body segments become darker 

 because of the presence of pigment, reddish brown in color, which, while 

 present elsewhere on the body, is more prevcilent on these segments. 

 The body becomes slightly " humped " at the fourth and fifth segments, 

 a character which persists through the remaining IcirvcJ instars. 



Second larval instar. — Ground color of body greenish yellow, yellow 

 being predominant on first, second, third, sixth, seventh, eighth, and ninth 

 segments. The other segments darker because of wine-colored areas. 

 Head, thoracic shield, and markings on legs black. Wine-colored mark- 

 ings on prolegs. Longer hairs black except two each on second, third, 

 and eleventh segments, arising from tubercles on dorsal surface of body. 

 These hairs are light tipped. 



Third larval instar. — Tubercles on fourth, fifth, tenth, eleventh, 

 twelfth, and thirteenth segments have dark metallic blue color. Lower 

 tubercles on second and third segments, two lower tubercles on sixth, 

 seventh, eighth, and ninth segments, all tubercles on first segment, and 

 areas on outside of prolegs dark. The predominant yellow color on first, 

 second, third, sixth, seventh, eighth, and ninth segments daurker than in 

 second instar, being of an orange color. Body marked with WTne-colored 

 areas, more abundant on fourth, fifth, tenth, eleventh, twelfth, and thir- 

 teenth segments. 



Fourth larval instar. — Coloration much the same as in third larval 

 instcur. 



Fifth larval instar. — Full-grown larva. Length about 24 mm. Head 

 and areas on true legs black. First, second, third, sixth, seventh, eighth, 

 and ninth segments orainge yellow with wine-colored markings. Remain- 

 ing segments dark wine colored vsath light markings. Tubercles on first, 

 fourth, fifth, tenth, eleventh, twelfth, and thirteenth segments, lower tuber- 

 cles on second and third segments, two lower tubercles on sixth, seventh, 

 eighth, and ninth segments, cervical shield, areas on outside of prolegs. 



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