GEOMETERS. 



almost white, lateral line. It feeds on the 

 flowers of the burnet saxifrage (Pimpinella 

 Saxifraga), and wild chervil (Anthriscu syl- 

 vestris). 



The MOTH appears on the wing in June, 

 and is generally distributed in England, 

 Scotland, and Ireland. (The scientific name 

 is Acidalia scutulata.) 



175. The Small Fan-footed Wave (Acidalia bisetata). 



175. THE SMALL FAN-FOOTED WAVE. All 

 the wings are pale, dingy wainscot-brown ; 

 the fore wings have two darker transverse 

 waved lines near to, and parallel with, the 

 hind margin : a dark central spot, and an 

 indistinct transverse darker line just outside 

 the spot : the hind wings have three or four 

 darker transverse lines, parallel to the hind 

 margin ; a central dark spot, and an indis- 

 tinct transverse darker line just within the 

 spot ; there are a few small and inconspicuous 

 dots at the base of the fringe, round all the 

 wings : the head, thorax, and body are of 

 the same colour as the wings. 



The MOTH appears on the wing in June, 

 and is of frequent occurrence in England, 

 Scotland, and Ireland. (The scientific name 

 is Acidalia bisetatd). 



176. The Treble Brown Spot (Acidalia trigeminata). 



176. THE TREBLE BROWN SPOT. All the 

 wings are very pale wainscot-brown, ap- 

 proaching to yellow ; the costal margin of 

 the fore wings having a dark mark at the 

 base, extending about a third of its length ; 

 a tranverse line crosses the wing at the end 

 of this dark mark, and a second transverse 

 line, parallel to the first, crosses the middle 

 of the wing ; outside this second line is a 

 black central spot; beyond the spot is a 



broad double waved bar, parallel with the 

 hind margin of the wing : the hind wings 

 very nearly resemble the fore wings in the 

 number and situation of their markings, 

 except that there is no dark mark on the 

 costal margin : the head, thorax, and body are 

 of the same colour as the wiugs. 



The MOTH appears on the wing in July, and 

 has occurred in Devonshire, Hampshire, Sus- 

 sex, Surrey, Berkshire, Suffolk, Gloucester- 

 shire, and Worcestershire ; and Mr. Birchall 

 has taken it in the county Gal way, in Ireland. 

 (The scientific name is Acidalia trigeminata.} 



177. Greening's Wave (Aci lalia contiguaria). 



177. GREENING'S WAVE. The antennae 

 are simple in both sexes : the wings are pale 

 gray, with three distinct waved dark lines at 

 equal distances ; the second of these is pre- 

 ceded by an elongate discoidal spot ; the hind 

 margin is frequently clouded, and contains a 

 series of dark spots disposed in pairs. 



The MOTH appears on the wing in July, 

 and has only been taken in North Wales. 

 (The scientific name is Acidalia contiguaria.) 



178. The Least Carpet (Acidalia rusticata). 



178. THE LEAST CARPET. All the wings 

 are of a whitish ground colour; the fore 

 wings have a central, transverse, brown bar, 

 the outer margin of which is deeply indented ; 

 in the middle of this brown bar is a black 

 s=pot, and between this brown bar and the 

 base of the wing the costal margin is of the 

 same colour ; the outer pai t of the wing, 

 between the bar and the hind margin, is 

 almost white, but is divided into two equal 

 parts by a transverse, zigzag, pale brown, and 

 rather indistinct line : the fringe on the hind 

 margin is spotted with black : the hind wings 



