TRIFID.^. 293 



above the sea-level. It is plentiful almost all over Europe, 

 and at Gibraltar is known to be regularly double brooded. 

 Also abundant in South Africa, throughout Northern, 

 Eastern, and Western Asia, India and Ceylon. 



4. A. corticea, Huh. — Expanse 1| to lA- inch. Antennae 

 of male broadly pectinated ; fore wings obtuse, pale brown 

 in the male, with conspicuous dark stigmata, the reniform 

 almost round, the claviform pale within ; female often darker ; 

 hind wings grey-brown. 



The antennas of the male are strongly pectinated with 

 long, solid, ciliated teeth, which decrease in length beyond the 

 middle, disappearing at three-fourths the length, the re- 

 maining fourth being furnished with rows of fine bristles ; 

 pale brown. Palpi tufted with long, loose, pale brown scales, 

 darker at the sides ; head brown ; collar erect, lower half 

 dark brown, in the middle a slender black bar, above it light 

 brown mixed with whitish ; shoulder lappets long and broad, 

 rather uplifted, pale brown edged with darker ; central 

 portion of thorax pale brown mixed with darker, faintly 

 crested from top to back, the tips of the back crests dotted 

 with darker brown ; fascicles whitish, long and very broad, 

 followed by long whitish scales on the basal abdominal 

 segments, where they enclose some dark scales which mimic 

 abdominal crests ; remainder of abdomen light brown dusted 

 with darker ; lateral tufts very small ; anal tufts long and 

 rather narrow. Fore wings rather short and truncate ; 

 costal and dorsal margins nearly straight ; apex blunt and 

 squared ; hind margin perpendicular and hardly curved 

 except toward the anal angle ; colour pale brown dusted 

 with blackish ; basal line indicated by two small black 

 streaks from the costa ; first line perpendicular, black, 

 duplicated, waved'; second line black, double, curving 

 outward from the costa round the reniform stigma, then 

 passing almost straight to the dorsal margin in a series of 



