November — December 1S90.] 



PSYCHE. 



417 



GOirespondiiig spots on the legless seg- 

 ments brownish red. Hair white, thin, 

 longest at the extremities, the minute 

 tubercles black. The lateral bands are 

 not confluent at either extremity, though 

 in some examples, there is a tendency 

 for the third and fourth lateral (above 

 and before the spiracles) to rim together 

 in the middle of the body. 



Fifth stage. Immediately after molt- 

 ing before the colors have become fixed, 

 the stripes are continuous as in the pre- 

 vious stage, but in a few hours the char- 

 acteristic markings of this stage are 

 assumed. Head as high as wide, 

 rounded, shagreened, shiny ; clypeus 

 wrinkled and depressed in several places, 

 j^rincipally along the upper part of the su- 

 tures ; labrum wrinkled. Color, orange- 

 brown to almost mahogany red ; ocelli 

 black, antennae and palpi ringed with 

 black and white, their bases red ; man- 

 dibles black, white inwardly ; maxillae 

 black. A few hairs sparsely distributed. 

 Width 5,3 mm. Cervical shield, anal 

 plate, bases of all the legs, and corres- 

 ponding on the apodous segments (i.e. 

 on the first, second, seventh and eighth, 

 but not on the ninth, abdominal seg- 

 ments) mahogany red, the thoracic feet 

 black, the abdominal orange brown, in 

 some examples a little blackish out- 

 wardly. Body black, the ventral lines 

 absent or represented by a few elongated 

 dots, the lateral bands broken into rows 

 of sub-quadrate spots, as I have elsewhere 

 described,* This " serial atrophy " oc- 

 curs in the following manner : — the 



* Can. ent., v. aj., p. 34. 



three upper lateral stripes on each side 

 are broken in each segmental suture 

 and more or less broadly through the 

 centre of the segment, the third lateral 

 band (superstigmatal) less broadly tlian 

 the others. The fourth lateral (substig- 

 matal), the subventral, interrupted by 

 the bases of the legs, and the central 

 ventral (these last two are represented 

 only by dots) are broken twice on each 

 segment, once just before the spiracles 

 and again toward the posterior edge of 

 the segment, but are not broken in the 

 sutures. In some examples, the pos- 

 terior white spot of the third lateral 

 band is again narrowly broken, and the 

 bisegmental spot of the fourth row 

 very narrowh' in the sutures. The 

 stigmatal spot of this row, when large, 

 is apt to be broken at the spiracles. 

 Ori the prothoracic segment, the two 

 upper bands are represented by a 

 white dot behind the cervical shield ; 

 the third, by a rectangular spot above 

 the spiracle ; the fourth by the biseg- 

 mental spot. On the ninth abdominal 

 segment, the first row has a sub-quad- 

 rate spot, in some, followed by a dot; 

 the second, a rectangular spot scarcely 

 bisected, the third and fourth are 

 normal. The tenth abdominal has 

 only a dot representing the third lat- 

 eral band, and the bisegmental spot 

 representing the fourth. The subven- 

 tral lines are represented by dots be- 

 tween each segment from the third to 

 the eighth abdominal, and the ventral, 

 by the bisegmental dots and a dot an- 

 terior to the bases of the legs on the 

 second to the sixth abdominal segments. 



