NOTES ON EUPITHECIA LARV^. 133 



The larva feeds very rapidly. 



Eupithecia helveticajia. Short and stumpy, the same 

 thickness from tip to tail. Back and belly bright green. 

 Central dorsal line dark green. Sub-dorsal lines pale yellow. 

 Spiracular line yellow, waved. Anal tip of central dorsal 

 line purplish. Head slightly bifid, dusky, curved inwards. 

 Central ventral line pale yellow. Spaces between the sub- 

 dorsal and spiracular lines darker green than back and belly. 

 Feeds on the common juniper (Juniperus communis). Full 

 fed throughout September. Resembles in many respects the 

 larva of E. sohrinata. For the larvae from which the fore- 

 going description is taken, I am indebted to the kindness of 

 Mr. Andrew Wilson of Edinburgh. The pupa, which is 

 enclosed in an earthen cocoon, has the thorax and abdomen 

 bright green, the latter sometimes yellowish. Wing-cases 

 much darker, very transparent. Central dorsal line dark 

 green. Abdominal divisions and frequently the border of 

 wing-cases reddish. Tip of abdomen blood-red. Underside 

 of ditto yellowish. 



Eapitliecia mtyrata. Yar. 1. Ground-colour pale yel- 

 lowish green. Segmental divisions pale yellow. Central 

 dorsal line dusky green. Down the centre of the back a 

 series of Y-shaped dusky green blotches, edged with purplish- 

 brown, and becoming confluent or merged in the central line 

 on the anterior and posterior segments. Sub-dorsal lines 

 very slender and indistinct, dusky green. Spiracular line 

 yellow. Between the sub-dorsal and spiracular lines a row 

 of small slanting purplish blotches. Back studded with ^erj 

 minute yellowish tubercles. 



Yar. 2. Back greenish- white. Central dorsal line pinkish 

 or rose-colour. Sub-dorsal lines ditto. Down the centre of 

 the back a series of large rose-coloured and rusty red goblet- 

 shaped blotches, becoming faint or merged in the central line 



