i89i.] THE BRITISH NATURALIST. ^09 



June attached to its food-plant, or any suitable object near, by its anal 

 extremity. Mr. C. G. Barrett writes : — " The pupa state seems to be 

 assumed under any convenient object close to the ground, as the hairy 

 pupa is not often to be found on the plants " (" Entomologist's Monthly 

 Magazine," VIII., p. 155). Figures of the different stages of this 

 species are given in the April number of the" Entomologist," Vol. XVI. 



Time of Appearance —Heterodactyla occurs between the second 

 week of June and the end of July, being much earlier some seasons 

 than others. It is single brooded and hence differs from so many of 

 its congeners. Dr. Knaggs had it as early as June 14th, but the 

 begining of July is a nmch more usual date. 



Habitat — The species is to be found in woods, on sandy heaths and 

 in gravel pits, wherever its food-plant Teucviiun scovodonia abounds. It 

 has a wide distribution in Britain. Mr. Gregson (" Entomologist," 

 IV., p. 306) writes : — " It was taken freely at Pettypool Wood, many 

 years ago, by Mr. N. Cooke and others ; since then I have met with it in 

 Wales, in Ireland, in the Isle of Man, and, in company with Mr. 

 Hodgkinson, in Westmoreland, and at Humphrey Head in North Lan- 

 cashire." In Vol. III., p. 298, he also gives " Delamere Forest, and 

 Pant Moen and Pan-y-Garrowin in North Wales." Mr. Atmore records 

 it from Kings Lynn, Norfolk. It also occurs freely at Tilgate Forest, 

 several localities in Dorsetshire, Clevedon in Somersetshire, Folkestone 

 Warren, &c. Dr. Jordan Entomologist's Monthly Magazine," Vol. 

 VI., p. 122) says that the species is not known in Scandinavia. In 

 fact it appears to have been almost entirely overlooked on the Continent, 

 as it is not even mentioned in Staudinger and Wocke's " Catalog." 



THE HETEROCERA OF THE ISLE OF MAN. 



BY HENRY SHORTRIDGE CLARKE, F.E.S., ADVOCATE. 



Gnophos obscurata. — Occurs at Onchan. Mr. Gregson has taken 

 the larvaii plentifully on the grassy places on the coast wliere tlie 

 grass is short, in April and May. 



lodis lactearia. — Appears generally distributed throughout the 

 island. 



