159 



AC1DALIA HOLOSERICARIA. 

 Plate XXIII. Figure 15. 



THIS insect measures from a little under to a little over 

 three quarters of an inch in width. 



Male: fore wings pale dull yellowish, darkest on the 

 upper margin. The first line is grey and waved; second 

 line also grey and waved; third line grey, followed by 

 another band of the same; central shade aline of grey; 

 central spot blackish, but seldom occurring. 



The perfect insect appears in July. 



Localities for this species are near Bristol. 



ACIDALIA INCANARIA. 



SMALL DUSTY WAVE. 

 Plate XXIII. Figure 16. 



THIS insect measures from a little under to a little 

 over three quarters of an inch across, generally the former 

 size. 



Male : front wings whitish frosted with grey. The first 

 line, faintly visible, is dark grey and curved; second line 

 indicated by a row of dark grey dots; central spot very 

 small and greyish-black; the outer margin dusky, extending 

 a little way round the upper margin. Hind wings also 

 greyish-white, with a faint dotted line near the inner 

 corner, and two or three others within the outer margin; 

 central spot black ; the outer margin also dusky, clouded 



