60 RARE AND LOCAL LEPIDOPTERA. 



September and October on the seeds of Suceda maritima, and 

 when full fed attaches itself to the stems ol its food-plant and there 

 hybernates ; in the spring it again shews signs of activity, wandering 

 about restlessly until a convenient place is found for the attach- 

 ment of its case, in which it passes into the pupa state. The 

 duration of this state is very short, and the perfect insect appears 

 in June and July. 



This species was discovered in the larva state by Mr. Digby 

 and Mr. Bankes on the Chesil Beach, Portland, in the autumn of 

 1884, and from some of these larvae, which are greatly subject to 

 the attacks of ichneumon flies, the perfect insects were bred 

 for the first time by Mr. Bankes in the June and July following. In 

 the same year the insect was also found by Mr. W. H. B. Fletcher, 

 in Sussex. I am indebted to Mr. Bankes for the above facts, and 

 I understand that he believes it has also been found in Essex. It 

 ranks therefore as yet among our most local species. 



DESCRIPTION OF PLATE II. 



Fig. A. Pterophorus paludum. 



a. Natural size. 



Fig. B. CEnectra filler tana. Ordinary heath variety. 



b. Natural size. 



Fig. C. Ditto, ditto. A rare variety found on the heath, 

 intermediate in colour between A and D (the 

 red saltmarsh form). 



c. Natural size. 



Fig. D. Ditto, ditto. Red variety from the saltmarshes. 



d. Natural size. 



Fig. E. Labidura riparia (Great earwig), female. 



e'. Natural size. e. Forceps of male. 



Fig. F. Forficula auricularia (common earwig), forceps of 

 male. 



f. Forceps of female. 



