GEOMETERS. 



or apple-green, with oblique transverse lines 

 on the sides; it feeds on oak (Quercus Robur). 

 This species is double-brooded, the MOTH 

 appearing on the wing in May and September : 

 it occurs in all our English counties, and ex- 

 tends even into Scotland, and Mr. Birchall 

 took it in the county Wicklow, in Ireland. 

 (The scientific name is Ephyra punctaria.) 



161. The Clay Triple-lines (Ephyra trilinearia). 



161. THE CLAY TRIPLE- LINES. The an- 

 tennae are pectinated in the male, simple in 

 theferaale; the wings are fulvous-yellow, with- 

 out the slightest tinge of red : there are three 

 transverse lines on each wing, the middle one 

 much the darkest, broadest, and most plainly 

 marked; the others are broken and dotted, 

 and often very difficult to perceive: one of 

 my specimens has, on the middle of each wing, 

 a conspicuous white spot, surrounded by a 

 black line, being, in this respect, similar to 

 Ephyra porata : the head, thorax, and body 

 are of the same colour as the wings. 



The MOTH appears on the wing in May 

 and September, and is not uncommon in the 

 counties of Somerset, Dorset, Hants, Sussex, 

 Surrey, Kent, Essex, Berks, and Hunts; but 

 I think does not occur farther north, in Scot- 

 land, or in Ireland. (The scientific name is 

 Ephrya trilinearia.) 



162. The Mocha (Ephyra omicronaria). 



162. THE MOCHA. The antennae of the 

 roale are slightly pectinated, of the female 

 simple: the wings are whitish-fulvous, with 

 a double, transverse, zigzag, smoke-coloured 

 line across the middle of each, and a ring of 



the same colour between the zigzag line and 

 the base of the wing : again, between this ring 

 and the base of the wing, is a narrow brown 

 line, composed of two semi-circles: the head, 

 thorax, and body are of the same colour aa 

 the wings. 



The head of the CATERPILLAR is red above, 

 and pale yellow, almost white, below: the 

 body is a beautiful velvety-green colour, with 

 a slender medio-dorsal stripe, composed of 

 canary-yellow points, as though jhagreened on 

 each side; near the medio-dorsal is another 

 stripe, of the same canary-yellow colour and 

 rather waved ; and below this, in the region 

 of the spiracles, are the traces of a third very 

 indistinct stripe; the spiracles are small and 

 reddish ; the ventral surface is pale glaucous- 

 green, with black dots. It feeds on maple 

 {Acer compestris), and usually when full-fed 

 conceals itself among moss, spinning a few 

 threads by way of security, and changes 

 to a smooth green CHRYSALIS, square a tthe 

 anterior, and pointed at the posterior ex- 

 tremity. 



The MOTH appears on the wiug in May and 

 August, and occurs frequently in all the 

 southern counties in England, but I think 

 not in the north of England, in Scotland, or 

 in Ireland. (The scientific uame is Ephyra 

 omicronaria.) 



163. The Dingy Mocha (Ephyra orbiculana). 



163. THE DINGY MOCHA. The antennae are 

 pectinated in the male, simple in the female: 

 the wings smoky-gray, mottled and marbled 

 with darker shades of the same colour : in the 

 centre of each wing is a round white spot in a 

 circle of smoky-gray; half-way between this 

 and the base of the wing are some blackish 

 dots, arranged in a very indistinct transverse 

 row; and a^ain, half-way between the white 

 spot and the hind border of the wing, is a 

 second row of blackish dots, arranged in zigzag 

 o der; lastly, there is a third row, on the hind 



