440 VARIETIES. 



of equal parts of loaf sugar, oxyde of arsenic, and well pul- 

 verized white bread, strewed as occasion may require, both as 

 to time and quantity, in the haunts of the ants. The mixture 

 to be kept in a bottle dry for use. — J. D. in Loudon s Maga- 

 zine of Natural History. 



44. Ophrys Apifera. — I have been fortunate in discovering 

 this beautiful plant in great abundance, on the skirts of Birch 

 Wood, among fern and heath, in that field on the further side 

 of the wood, which most entomologists know as the one where 

 Endromis versicolor has so frequently been taken ; by looking 

 carefully along the margin of the wood it will be readily found. 

 Is not this a nearer London habitat than has yet been re- 

 corded ? — fourteen miles. 



E. N. D. 



45. Question respecting Names. — Sir, May I trouble you 

 for the names of two butterflies which have appeared here in 

 great abundance during the present month ? the first is bright 

 orange-colour, with a wide black border, and frequents the 

 blossoms of lucern ; it is a bold butterfly, easily caught, and is 

 about the size of the large garden-iohite. [Colias Electra, 

 or the clouded yellow. — Ed.] The other is marked very much 

 like the admiral, but is paler in colour, both above and below ; 

 it settles on the lucern and on China asters. [Vanessa Cardui, 

 or the painted lady. — Ed.] By answering these questions you 

 will much oblige a subscriber. 



Epsom, Aug. 24, 1834. -. JAMES B. SMITH. 



46. Earwigs destructive to Dahlias. — Sir, You will con- 

 fer a great benefit on the cultivators of that beautiful plant, the 

 Dahlia, if you will inform them, through your excellent Maga- 

 zine, what insect it is that devours the petals of the flowers as 

 soon as they expand ; and also what remedy is to be applied. 



Guildford, Aug. 1. 



[The mischievous insect alluded to is the common earwig. 

 Remedy. — Place a small quantity of hay in a very small 

 flower-pot ; invert one of these flower-pots on every stake to 

 which a Dahlia is tied ; the earwigs will seek these for roost- 

 ing-places at the approach of daylight, and may thus be 

 entrapped, and every morning shaken out and destroyed.] 



