AcRoris. 205 



stigma is small, but the orbicular stigma is very long and pointed ; the elbowed line is mostly 

 composed of long black and white teeth ; hind- wings grey with white fringes. A. Arenicola, 

 Staud., from Corsica, may be known from any allied species by the under side of the fore-wings, 

 which have a dark central lunule, and two narrow dark parallel stripes beyond. A.Araiosa, Staud., 

 from Andalusia, is allied to Spinosa ; the fore-wings are varied with grey, whitish along the 

 costa and submarginal line, and with two long white dashes in the place of the claviform stigma ; 

 the other stigmata are small and bordered with white, with a square black spot between, and a 

 triangular one within, and with long black spots resting on the submarginal line.) 



90. A. Ypsilon (Rott.), Snffiisa (Hubn.). — Fore-wings brownish-yellow or dark brown, paler 

 in the suffused submarginal band, with double transverse lines, and three dark-grey stigmata, the 

 reniform stigma with a black streak behind, the subterminal line forming a distinct W, and with 

 black arrow-headed spots upon it ; hind-wings whitish with brownish nervures ; the antennas 

 of the male pectinated. Expands from if to 2 inches. Common in the greater part of Europe 

 and Northern and Western Asia in July and August. 



*9i. A. Vestigialis (Hufn.), Val/igera {W.Y.) — Fore-wings ashy-grey, varied with dark grey 

 and brownish, with slender black nervures and double transverse lines, the inner line very oblique' 

 the orbicular stigma small, the reniform stigma dark grey, and the claviform stigma very large 

 and filled up with black; the subterminal line light, with two rather strong teeth in the middle, 

 and black arrow-heads in front ; hind-wings whitish, with the hind margin grey. Antennae 

 of the male pectinated. Expands from i\ to U inches. Inhabits the greater part of Central 

 Europe in July and August, preferring sandy places on the coast and elsewhere. The larva is 

 ashy-grey, with a slender double black line on the back, and two whitish lines on the sides. It 

 feeds on grass till May. 



92. A. Fatidica (Hiibn.). — Fore-wings brown, with slender black nervures bordered with 

 whitish-grey, and indistinct dark double transverse lines, the three stigmata bordered with black, 

 the reniform stigma with a black streak behind, and the claviform stigma indistinct, marked 

 with black arrow-headed spots in front ; the hind-wings are pale grey, and the antennae of the 

 male are pectinated. The female has much shorter and narrower fore-wings. Expands from 

 \\ to if inches. It inhabits the Alps, Ural, and Altai in August. (^A. Rogncda, Staud., from 

 the Crimea, has a superficial resemblance to Naironia Popularis, but the fore-wings are brownish- 

 grey, with the nervures much more broadly white ; the hind-wings are quite white, and the 

 abdomen is slender.) 



93. A. Crassa (Hiibn.). — Fore-wings brownish-grey, with dark double transverse lines, and 

 the three stigmata unicolorous, and surrounded with dusky ; the elbowed line slightly dentated, 

 the subterminal line white and strongly dentated, forming a distinct \V, and often marked with 

 black arrow-headed spots ; hind-wings white, broadly brownish towards the hind margin in the 

 female; the antennae of the male pectinated. Expands from if to 2 inches. The larva is 

 dirty brown, with a double black line on the back. It lives on the roots of grass till May. 

 {A. Dircmpta, Staud., found in Andalusia in August, has greyish-white fore-wings, with two 

 waved transverse lines. Within the innermost stands the claviform stigma ; the other stigmata, 

 and an additional spot near the reniform stigma, stand between the lines ; hind margin with black 

 triangles. Hind-wings whitish at the base, and broadly black beyond the middle, and with a 

 central dot beneath.) 



94. A. Obesa (Boisd.). — Fore-wings pale yellowish-brown, with the principal nervures white; 

 the transverse lines are brown ; the elbowed line is edged with wliite outside, and curves round 

 beyond the reniform stigma ; the latter is large and brown, bordered with black outside, and 



