88 



OIDARIA IMMANATA. 



ish, and some individuals soon 

 acquire a pink spiracular stripe, 

 which, however, occasionally dis- 

 appears again at the last moult. 



When full-fed, fine individuals 

 (the hybernated larvae were finer 

 than the summer broods, and re- 

 sulted in finer moths) attain the 

 length of an inch and a third ; in 

 shape they are rather long and 

 slender, the head round but flattish 

 above, the anterior segments a 

 good deal wrinkled, the spiracular 

 region puckered and projecting, 

 thus giving the whole larva rather 

 a flattened appearance ; the two 

 anal points acute. The ground 

 colour varies from a yellowish- 

 green to a light tint of full green ; 

 the slender dark green dorsal line 

 is bordered by the ground colour ; 

 the subdorsal line is pale yellow 

 or yellowish-white ; in some indi- 

 viduals there is a broad purplish- 

 red stripe extending from the 

 second to the thirteenth segment, 

 and including the ventral and anal 

 pairs of legs ; in others this is of 

 a rose-pink, and is much narrower, 

 and extends from the third to the 

 tenth segment ; others again have 

 only a row of five or six irregular 

 dashes of pink, whilst in a great 

 many there is no pink whatever to 

 be seen, but instead a slender 

 stripe of a dark tint of the ground 

 colour running along the spiracles; 

 segmental folds yellow, dots and 

 spiracles whitish, anal points some- 

 times pink, sometimes green. 



seemed to me a very strong mark 

 of distinction from C. russata, and 

 was possessed by the larvae both 

 of the type and the variety {mar- 

 morata), which, in fact, at every 

 period of growth were identical in 

 colour and markings; after the 

 first moult they become more 

 greenish. 



When full grown they attain 

 the length of about an inch and a 

 quarter. In shape they much re- 

 semble C. russata, only they seem 

 more cylindrical, and the anal 

 points are blunt; the ground 

 colour is a dull, pale yellowish or 

 whitish-green ; the dark green 

 dorsal line is bordered by a space 

 paler than the ground colour ; the 

 subdorsal line is dirty whitish, 

 and at the middle segmental folds, 

 just above the spiracles, are six or 

 seven pale oblique streaks ; the 

 spiracular line is green, with a 

 yellowish thread running through- 

 out its length ; dots and spiracles 

 white; segmental folds yellow, 

 anal points sometimes very pale 

 pink, sometimes pale green. Alto- 

 gether the full-grown larva (al- 

 though when first hatched so gaily 

 dressed) is a much duller looking 

 creature than that of C. russata. 



The pupa3, with their transparent cases, showing 

 green when new, and growing darker as the moth 

 approaches perfection, as well as the slightly formed 

 cocoons, did not appear to differ. (John Hellins ; 

 E.M.M., December, 1864, I, 165.) 



