H ADEN A. 



235 



stigma pale, and suffused behind ; hind-wings pale grey, slightly dusted with brownish, with 

 a slender dark curved line, and the hind margin broadly brown. Expands from i^ to ij inches. 

 Widely distributed in Central Europe in July and August. The larva is green, with two dull 

 grey lines on the back, and a white stripe on the sides, bordered with black above. It feeds 

 on grass, and on wheat and rye, preferring the ears, in May and June. 



*28. H. Haworthii (Curt.). — Fore-wings dark purplish-brown, dusted with whitish in the 

 suffused submarginal band, with narrow double transverse lines, filled up with whitish, but not 

 dentated ; the two small stigmata white, slightly marked with brownish in the centre ; the sub- 

 terminal line, and nervures 3 and 4 as far as the elbowed line, v/hite, the former slightly zigzag 

 in the middle, and bordered with blackish in front. Hind-wings smoky-grey, with a darker central 

 lunule. Expands about i inch. Inhabits heaths and swampy places in Northern and North- 

 Central Europe' from Jul}' to September. The larva is green, with a black head, and lives on 

 cotton-grass in May and June. 



* 29. H. Didyma (Esp.), Oculea (Guen.). — Very variable ; fore-wings unicolorous dark rusty- 

 brown ; or else more or less varied with brownish-yellow, especially on the inner margin, and in 

 the suffused submarginal band ; the transverse lines indistinct, the elbowed line scarcely dentated, 

 the subterminal line light brown, and strongly curved, but not zigzag, and bordered with dark grey 

 behind as far as the hind margin ; the orbicular stigma more or less white, or with white dots 

 on its edge ; hind-wings greyish-brown. Expands from i to \\ inches. Abundant throughout 

 Europe and Western Asia from May to August. The larva is green, with two reddish lines on the 

 back, and a yellowish one on the sides. It lives in the stems and among the roots of grasses till 

 May. The moth is figured at PI. 38, Fig. 3. 



*30. H. Ophiogrmnma (Esp.). — Fore-wings violet-grey, dark brown on the costa in the basal 

 area, and in the central area as far as the fold, the colours separated by a white and much waved 

 line ; the transverse lines scarcely dentated, and whitish on the inside, the subterminal line arched, 

 not dentated, with a bluish spot behind above the middle, and above the hinder angle ; the 

 reniform stigma pale brown behind. Sometimes the reniform stigma and the marginal area are 

 suffused with rusty-red. Hind-wings reddish-grey, with a blackish central lunule and curved line ; 

 fringes pinkish-white. Expands about \\ inches. Occurs in marshy places among willows 

 throughout Central Europe and the Altai in June and July, but not generally common. The 

 larva is dirty flesh-colour, with the belly whitish, and feeds in the stems of Iris Pseiidaconis, 

 Glycerin speciabilis, &c., till May. 



* 31. H. Strigilis (Linn.). — Fore-wings brown, whitish in the submarginal area and at the tips; 

 the stigmata a little lighter, the inner line double, the elbowed line single, regularly curved, and 

 bordered with whitish, particularly pale in cell i b, where it forms an upright white lunule, which 

 stands below and not in front of the reniform stigma ; there is a black dash running from the 

 extremity of the claviform stigma, and the subterminal line is curved and zigzag, and bordered 

 behind with dark grey above the middle and the hinder angle ; hind-wings dark brownish- 

 grey. In the variety Latnincula (Hiibn.) the suffused submarginal band is reddish, and the 

 lunule formed by the elbowed line is flatter, and not so pale ; in the variety ALtliiops (Haw.) 

 the fore-wings are nearly unicolorous black, with a faint reddish shade, and the markings very 

 indistinct. Expands about i inch. Common in Europe and Western Asia in June and July. 

 The larva is pale brownish-yellow, reddish on the back, and with pale lines on the back and 

 sides. It feeds in the stems of grasses, especially of Dactylis glouierata, till May. The moth 

 is figured at PI. 38, Fig. 4. (* M. Fasciuncida, Haw., which some consider another variety of 

 Strigilis, is rather smaller, the fore -wings are reddish-ochrcous, witli no b'ark dash, and the 



