THE MARBLED BROWN. 67 



specimens were females." The locality mentioned in the fore- 

 going notice which was penned July loth, 1841, is in the County 

 of Essex. At a meeting of the Entomological Society of London 

 held in April, 1854, the Rev. Joseph (Greene exhibited a specimen 

 that he had reared from a caterpillar obtained from a poplar 

 near Halton, in Bucks, August, 1853. 



According to Buckler the caterpillar is pale green, with a thin 

 whitish line down the middle of the back, a broader yellow line 

 on each side, and some reddish spots on the front and hind 

 rings of the body ; the spiracles are black. It spins a somewhat 

 oval-shaped cocoon between two poplar leaves, and therein turns 

 to a glossy blackish brown chrysalis. 



Abroad the species is found in Central Europe, North Italy, 

 North-western Russia, Southern Norway, and also in Amurland 

 and Ussuri. There are said to be two broods on the continent, 

 one emergence of moths taking place in April and the other in 

 June or July. 



ritjtt) Jib 7» 'Ok 



The Marbled Brown ( Diym^mm trimacula). 



Somewhat similar to the next species, but the fore wings are 

 generally whiter ; the cross lines are not so straight, and there 

 is no black crescent above the centre of the wings (Plate 28, 

 Fig. 0. _ 



The caterpillar is green, with two yellow lines on the back, 

 and a yellow one along the spiracles, the latter edged above 

 with reddish. It feeds on oak, and may be found from July to 

 September ; stated to hide by day in the chinks of the bark. 

 The reddish brown chrysalis is enclosed in a cocoon of earth 

 held together with silk. It may be searched for at the roots of 

 grass, etc., around the foot of oak trees growing in parks or in 

 the more open parts of woods. 



Although nowhere really common, it seems to occur pretty 

 generally over the southern portion of England, and as far north 



