1883.] 133 



doubtless protected by a habitation o£ white silk between the leaves. 

 These young larvae were o£ a dull yellowish-green, greyer on the back, 

 with a visible, internal, broad, green dorsal vessel, interrupted between 

 the segments ; spots of the body-colour, but shining, and having dis- 

 tinct hairs ; head black, with light brown jaws ; dorsal plate blackish- 

 brown ; anal plate hardly visible, yellowish ; anal prologs extended, 

 yellowish. 



In June, full-grown, and nearly one inch loug, plump, not very 

 active, nearly cylindrical, dirty pale green, greyer on the back, spots 

 shining green, indistinct — or, dull whitish, with the whole dorsal 

 region slate-grey, and the spots whitish. Head black, with the eyes 

 brown ; dorsal plate pale yellowish-brown with two large black spots 

 near the posterior corners ; anal plate yellowish or grey, with two black 

 spots. Feeding on many plants, generally those with firm thick leaves. 

 Pupa blackish, in a rolled leaf. Zeller's description of the larva is 

 very brief, but agrees with the above as far as it goes. 



Tortrix heparann, Schiff. — Larva cylindrical, active, bright pea- 

 green, with slightly darker dorsal line, and sometimes bluish-green 

 sub-dorsal lines ; under-parts pale green ; spots invisible; head variable, 

 pale green, pale yellowish, or very light brown, and when full-fed, 

 dotted behind with black, plates green ; the dorsal having two black 

 dots behind. In June, on elm, sallow, blackthorn, dewberry, &c., 

 drawing leaves together. Pupa blackish, in the larval habitation. 



Zeller says of this larva : " light green, tinged on the back with 

 darker or lighter grey, with dirty lohite raised dots. Pupa slender, 

 brown, black in front." 



Tortrix riheana, H. — ^Toung larva active, slender, cylindrical, pale 

 green, or pale yellow, with broad, dark green, internal dorsal vessel ; 

 head yellowish-brown, with four wedge-shaped black spots on the 

 hinder edge ; dorsal plate yellow, with a broad, black, hind margin ; 

 anal plate yellow, feet black. When older, pale green, with straight, 

 deep green, dorsal line, and the divisions of the segments very pale ; 

 sides paler green ; spots shining ; head very light green, with the 

 wedge-shaped spots smaller, but some additional spots laterally of 

 a dark brown ; plates green. When full-grown the head seems to lose 

 the spots and become green. This variable larva has been repeatedly 

 described, and Zeller mentions small black spots. In feeds in June on 

 all sorts of trees, and becomes a brown pupa in the rolled or drawn- 

 togrether leaf. 



