188 THE CANADIAN ENTOMOLOGIST. 



geminate dorsal and stigmatal row of white dots, three or four on each 

 segment. Feet all black, the abdominal ones tipped with reddish. The 

 fold of skin behind the head is orange tinted. 



FiftJi Stage. — Head bilobed, a short spined process from the vertex of 

 each lobe ; many conical granulations each bearing a hair. Colour, shin- 

 ing black in front, but largely bright fulvous posteriorly, and at the vertex; 

 a fulvous patch covering the clypeus ; granulations fulvous or yellow, pro- 

 cesses black ; the labrum and bases of the antennse'white ; width 2.5 mm. 

 Body velvety black, the long (1.5 mm.) and slender spined processes 

 shiny blue-black, except rows 5, 6 and 7, which are orange, row 7 

 being pale. The rows are arranged as follows, and correspond to the 

 arrangement of warts in the Arctiidae (except Halesidota), except that the 

 rows on each side of the dorsal line in Arctia (row i) are here fused to 

 form a single dorsal series : — 



No processes on joint 2 ; a subdorsal and lateral series on joints 3 

 and 4 ; a dorsal (i), subdorsal (2), superstigmatal (3) and substigmatal 



(4) row on joints 5-12 ; two subdorsal ones on joint 13 ; two tubercles 



(5) and (6) above the bases of the legs, and four short ventral spines (7), 

 on the legless segments. A geminate diffuse dorsal series of numerous 

 minute yellow dots, like dust, in which appears later a double dorsal 

 series of segmental dashes ; a geminate stigmatal row of large yellow 

 spots, the substigmatal ones almost forming a continuous line, with many 

 minute dots like the dorsal series. The skin behind the head, spots at 

 the bases of spines 3 and 4, and the abdominal legs, reddish-orange ; 

 thoracic feet black. Spiracles black, with a pale yellowish border. 



Chrysalis. — Of usual shape in the sub family and without any marked 

 prominences. Eyes large ; the depression between the thorax and abdo- 

 men slight. Thorax very slightly ridged dorsally, without points ; a dorsal 

 abdominal series of very slight points. Cremaster broad, flattened, its 

 hooks fastened in a button of silk. Colour black, not shiny, dotted with 

 white on the back, especially in a series of eight subdorsal white patches, the 

 first of v/hich (over the eyes), and the last two (on the middle and end of 

 the abdomen respectively) are confluent over the dorsum. Length, 17 

 mm. ; width, 6 mm. 



