394 



PSYCHE. 



[August— October 1890. 



minute tubercles, a spined process at 

 each side of the cervical shield and two 

 tail-like appendages which take the place 

 of the anal feet. Color black throughout 

 a little paler ventrally. 



Second stage. Head rounded, mi- 

 nutely punctured, with a tubercle below 

 the vertex of each lobe. Color purplish 

 black, a little paler about the sutures of 

 the clypeus (triangular plate) . A few 

 short hairs. Width .9 mm. The body 

 has several rows of minute piliferous tu- 

 bercles, two large, thick, heavil}' spinose 

 cervicle horns on joint 2 ; tails, long, 

 sharply spinose, shiny black, the exten- 

 sile threads purple black, whitish at base. 

 Body velvety purple black, the venter 

 greenish. Length of body 4 mm., of 

 tails 4 mm. 



Third stage. Head with two tuber- 

 cles before the apex of each lobe, one in 

 the centre of and one each side of the 

 clypeus. Color, dull black, clypeus and 

 mouth reddish, ocelli black, antennae 

 pale. Width 1.3 mm. Cervical horns 

 thick, heavily spinose, the spines blunt 

 and each tipped with a hair. About 

 six rows of elongated piliferous tubercles 

 on each side, alternating anteriorly and 

 posteriorly on each segment. Tails long, 

 heavily spinose, black, the extensile 

 threads brown, white at base. Body 

 and legs greenish yellow, a black dorsal 

 band covering the cervical horns, nar- 

 rowing to joint 4 where the dorsum is 

 angularly elevated, widening to near the 

 spiracles on joints 8 and 9, then contin- 

 uing evenly over the subdorsal space to 

 tlie last segment. Spiracles narrowly 

 black ringed. Length of tails, 5 mm. 



Fourth stage. Head dead purple 

 black, greenish at the sides posteriorly, 

 the upper half sprinkled with little yel- 

 lowish dots, but leaving a line of the 

 ground color each side of the central su- 

 ture. 



Clypeus and mouth, paler and shiny : 

 antennae whitish, ocelli black. Width 

 2.1 mm. Body as before, considerably 

 elevated dorsally at joint 4 with a round- 

 ed pinkish dorsal process. Cervical 

 shield large, purplish black, the horns 

 rather thick and short, heavily tubercu- 

 lated. Body yellow-gieen, the dorsal 

 stripe black as before, but a little pur- 

 plish, spiracles white with a fine black 

 border, the posterior ones more or less 

 surrounded by black. Tails heavily 

 spinose, black ; length 7 mm. The 

 piliferous tubercles of the body are very 

 small, those on the lateral region white 

 besides many small lateral white spots. 

 A narrow yellowish stigmatal line. 

 Two erect spiny black hairs beyond 

 the anus. 



As the stage advances, the spines on 

 joint 2 become partly white, the dorsal 

 band partly striated and indistinctly bor- 

 dered anteriorly with white, the stig- 

 matal line just below the spiracles is 

 white and there is a general approach to 

 the next stage. 



Fifth stage. Head rounded, rather 

 flat in front, shagreened. Color black, 

 green at the sides posteriorly, a large 

 band in front as wide as the space be- 

 tween the eyes at base, but narrowing 

 to the vertex, sordid white, mo tied a 

 little with the ground color. Labrum 

 whitish ; maxillae black ; antennae 



