THE ENTOMOLOGY OP HELIANTHUS. I9l 



H. nervosus on May 27th and June 9th, and H. stigma on May 

 31st and June 11th. He also took H. nervosus at Woolhope, in 

 Herefordshire, on September 7th. H. micans was captured in 

 the New Forest on July 27th. 



Green Lace-wings. — Very few were noted. They were : 

 Chrysopa perla, on June 8th, in the Wisley district (Surrey) ; 

 C. tenella, near Bedford, on June 15th ; a large example of 

 C.flava, on July 28th, amongst Scotch fir on Beaulieu Heath in 

 the New Forest ; C. flava, taken by Col. Yerbury on August 

 14th at Llangammarch Wells ; C. vulgaris, in the New Forest 

 on August 31st. 



Dusty-wings. — On August 24th Mr. C. B. Williams and 

 myself spent some time searching the holly leaves in the New 

 Forest for Coniopteryx psociformis. We found egg, larva, 

 cocoon, pupa, empty pupa-skin, and imago. The small white 

 egg was laid on the margin of a holly-leaf, the mottled purplish 

 brown larva was discovered on the under side of a leaf, in which 

 situation also a number of white cocoons were found. The 

 cocoon was double — a small one within a much larger one. 

 From some the imago had emerged, leaving behind a delicate 

 pupa-skin ; but others contained the living pupa. The imago 

 was taken on the wing. Mr. Williams has been breeding the 

 British species of Coniopteryx, whose life-history was not well 

 known, and the result of his experiments will be welcome reading. 



Scorpion- flies.— On May 25th I met with the first example of 

 Panorpa, a male P. gennanica, at the Black Pond, Esher. In 

 the Wisley district, on June 8th, P. germanica and a number of 

 P. communis were taken. Mr. P. Richards sent me four P. ger- 

 manica, from Seabrook, in Kent — an almost immaculate male 

 taken May 2nd, another male on May 25th, and two females on 

 May 20th ; with them was a female P. communis taken on June 

 9th. Col. Yerbury took a female P. communis at Llangammarcb 

 Wells on July 22nd, and a female of the scarce Panorpa cognata 

 at the same place on August 23rd. 

 Kingston-on-Thames : May, 1914. 



THE ENTOMOLOGY OF HELIANTHUS. 



By T. D. a. Cockerell. 



The relations between insects and plants are of interest not 

 only to the economic entomologist or the collector desiring to 

 know where he can find rare species, but also to the general 

 student of evolution, who sees in them an endless series illus- 

 trating various kinds and degrees of adaptation. In modern 

 times, when so many plants are being purposely or accidentally 



