146 LEPIDOPTERA. 



plenty from the middle of July till the middle of August. 

 I have also beaten it from the flo-wers of the hemp agrimony 

 (Eupatoriuni cannahinmn), the golden rod (Solidago vir- 

 gaurea), and the wood Angelica (Arigelica si/lvesii-is). The 

 pupa, which is enclosed in a rather closely spun earthen 

 cocoon, has the abdomen very much curtailed and sharply 

 pointed, the eyes black and very prominent, the thorax and 

 wing-cases spotted with black, the latter much ribbed. The 

 spots do not appear for a week or two after the caterpillar has 

 turned, and till then the pupa is a uniform pale yellow- 

 ish-red colour. The perfect insect appears from April to 

 July. In confinement I have occasionally had the earlier 

 fed July larva produce the perfect insect in August. 



Eupithecia rectang ulata. Short, thick and stumpy. 

 Ground-colour very pale yellowish-green, darker when 

 young. Central dorsal line varying much in breadth and in- 

 tensity of colouring, sometimes rusty red, sometimes dark 

 green, frequently very indistinct and sometimes wanting alto- 

 gether. Segmental divisions reddish. Spiracular line rather 

 darker than ground-colour. Whole body very transparent. 

 Circulation very visible under central dorsal line. Back 

 sprinkled with a few very short hairs. Dorsal stripe, when 

 young, broad, distinct and rusty red. Feeds in x4.pril and May 

 on the blossoms of apple and wild crab. Full fed the middle of 

 the latter month. I took a number of these larvae, this spring, 

 in Suffolk. I noticed that those which fed upon wild crab 

 were much brighter and darker-coloured than those upon the 

 apple blossoms in the gardens. In habits and shape this 

 larva strongly resembles that of E. Haworthmta. The 

 pupa is enclosed in a slight earthen cocoon. The thorax 

 and wing-cases are yellow, suffused with olive. Abdomen 

 tapering, lower divisions and tip blood red. The perfect 

 insect appears in about a fortnight. 



