tg6 bAVENl'ORt ACADEMV of SCIENCES. 



Stem-mother. — I/cngth about o.6™™-. Shape broadly ovoid 

 or almost globular. Color greenish yellow with a faint dusky 

 tinge. Antennae and legs blackish, eyes purplish-black. There 

 are two small dusky spots near the front of the head and three at 

 its posterior margin. One or two dusky subdorsal and one lateral 

 spot each side anteriorly, and one transverse subdorsal and a lat- 

 eral spot each side posteriorly beyond the middle, on the pro- 

 thorax; also a subdorsal and lateral spot in the sutures of the 

 two following segments. Surface of body densely covered with 

 minute points and sparsely and irregularly tuberculated. Antennas 

 very short, the third joint somewhat thinnest towards its base, 

 and sparsely annulated. 



Eggs and lyARV^ white. 



Pupa. — Orange; eyes brown, ocellar spots red, antennae and 

 legs dusky; wing pads whitish, sometimes pale dusky or with the 

 external margin or the tip dusky. Surface of body densely gran- 

 ulate. Antennae slender, the third joint at least three times the 

 length of the two basal joints combined. 



Migratory Female. — I^ength of body o.S-i"™- Expanse 

 of wings 2.6-2.8™""-. Slender. Color orange, the prothorax 

 darkest, the end of the abdomen palest. Head, mesothorax, scu- 

 tellum and sternum blackish or brownish, the head often orange 

 with a dusky tinge, and blackish anteriorly. Antennae and legs 

 dusky. The prothorax is marked with two more or less distinct, 

 large, transverse dusky spots or bands, one near the anterior 

 margin and the other beyond the middle, with three small blackish 

 punctures, arranged in an oblique, curved row each side of the 

 posterior band. The sides are also broadly dusky. Surface of 

 body distinctly and quite densely granulate. Antennae slender and 

 rather longer than the head, with joint i scarcely longer than 

 wide and somewhat stoutest at base, with its apex truncate; joint 

 2 shghtly longer than wide, thinnest at base and rounded at ape&; 

 both joints but sparsely annulated, joint 3 rather more than thjee 

 times the length of the others combined, very slender and with 

 about thirty closely placed, sharp and scaly annulations. 



It approaches Pk. devastatrix n. sp., though the third antennal 

 joint is still more slender, with the lower sensorial membrane 

 placed higher up and the upper one longer, the former a little 



