1884.] 2G9 



Larvae sent from Scotland by Mr. Watson, o£ Paisley, differed 

 from these. When half -grown, they were dark or light greenish-grey, 

 with more or less distinct, raised, shining black dots, and numerous 

 rather long hairs. Head black, dorsal plate having the anterior half 

 grey and the posterior black, anal plate greenish or yellowish, feet 

 black. When full-grown, more of an olive-green, head banded with 

 paler, dorsal plate browner. 



These were found in May, feeding on birch, they produced the 

 more mottled form of the moth in July. 



Fischer describes this larva, " when young, dirty white, with black 

 head and dorsal plate ; when full-grown, yellowish-white, with visible 

 intestinal canal, and with small black warts or shining grey dots. 

 Head chestnut-brown, dorsal plate indistinct yellow-brown, with a 

 white edge towards the head." Feeding on hazel, birch, aspen, and 

 sallow. Pupa yellow-brown in an earthy cocoon. 



PcBdisca semifuscana. — Larva, when young, active, plump, cylin- 

 drical, pale blue-green, with minute but distinct black dots. Head 

 and plates black. When older, rather flattened, dorsal region slate- 

 colour, whitish-green at the sides and below, and also on the last three 

 segments. Spots whitish, with bristles. Head dark umber-brown, 

 eyes paler, plates whitish-green. 



Feeding in drawn-together sallow shoots in April and May. 

 Pupa light chestnut-brown, spun up among the dead leaves. Moths 

 emerged at the end of June and in July. 



Dr. Wocke says of this species that it feeds on Salix cinerea and 

 autumnalis, in May. 



Halonota trigeminana, Steph. ■ — Larva cylindrical, moderately 

 active, plump and smooth, with rather deeply divided segments. 

 Pinkish-yellow, the dorsal region sometimes a beautiful bright pink, 

 paler below. Head chestnut-brown with darker jaws, dorsal plate 

 very pale brown, with a crescent-shaped blotch behind each lobe of 

 the head, anal plate hardly perceptible, spots faintly shining with very 

 minute hairs. When full-grown still plump, but wrinkled and taper- 

 ing towards the extremities. Bright light vermilion throughout the 

 dorsal region, faint flesh-colour below. Head very light brown, dorsal 

 and anal plates pale bone-colour, with a vermilion tinge, feet bone- 

 colour. AVhen in motion, the incisions of the segments very pale. 



In root-stocks of Senecio jacohcea, when young feeding on the 

 outer skin, and making covered ways, meandering about the root-stock, 

 constructed of silk and frass, and having a little chamber at the end 



