MAECH. 77 



an Aphis was found, and the duty, which began in May at 

 120,000/., rose to nearly 500,000/., so that this little in- 

 sect actually possesses a control over the British treasury 

 amounting to hundreds of thousands.^' 



Lepiodoptera. Papilionid.e. 

 GONEPTEEYX. 



Generic Distinctions. — Antenna rather short and robust, thick- 

 ening near the summit to an obtuse club ; palpi compressed and 

 projecting a httle beyond the head ; icifigs large, angulated, the 

 under pair grooved to receive the body. 



GoNEPTEEYX Rhamni. (Plate Y.) Brimstone Butterfly. 

 The male is entirely bright sulphur-yellow above, and the fe- 

 male greenish-white ; both have a small round orange spot 

 near the middle of each wing, and some minute, rust-coloured 

 spots along the outer edge ; the under side is paler than 

 the upper, and the central marks are rust-brown and pale 

 in the middle. The body is black above, and clothed with 

 long, silky, white hairs, the under parts are yellow ; antennae 

 reddish; the head and thorax slightly tinged with rose- 

 colour. This insect is common in the southern counties, 

 and also occurs in many parts of the north, but not in 



