GEOMETEES. 



77 



Imost white, lateral line. It feeds on the 

 flowers of the buruet saxifrage (Pimpinella 

 <;ifraya\ and wild chervil (Anthriscus syl- 

 stris.') 



The MOTH appears on the wing in June, 

 id is generally distributed in England, Scot- 

 :md, and Ireland. (The scientific name is 

 leidfdia scutulata.} 



1 7.3. The Small F<tn-f,>r>ted Wave (Acidalia bisetnta). 



175. THE SMALL FAX-FOOTED WAVE. All 

 the wings are p.'ile, dingy, wainscot-brown ; the 

 fore wings have two darker transverse waved 

 lines near to, and parallel with, the hind 

 margin: a daik central spot, and an indis- 

 tinct 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 very frequent occurrence in England, 

 Scotland, and Ireland. (The scientific name 

 is Acidalia lisetata.} 



170. The Treble Brown Spot (Acidalin trigeminata). 



176. THE TREBLE Buowx SPOT. All the 

 wings are very pale wainscot-brown, approach- 

 ing to yellow ; the costal margin of the fore 

 wings having a dark mark at the base, ex- 

 tending about a third of its length ; a trans- 

 verse 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 wings. 



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 Galway, in Ireland. 

 (The scientific name is Acidalia trigeminata.} 



177. Greening's Wave (Acidalia contiguaria). 



177. GREENING'S WAVE. The antenna 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 contiguana.~] 



178. The Least Carpet (Acidalia nmticata'). 



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 

 spot, and between this brown bar and the 

 base of the wing the costal margin is of the 

 same colour; the outer part 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 



