338 European Butterflies and Moths. 



Northern Asia from May to July. The larva is green, with yellow spots on the back divided with 

 dusky ; it feeds on bilberry and alder in August and September. {N. Putata, Linn., which is 

 common in many parts of Northern and Central Europe, differs from Lactcaria by the distinctly 

 dentated transverse lines, and the ochre-yellow forehead. The larva is pale grey, with small 

 red spots, and feeds on bilberry. In size and times of appearance it resembles Lactearia.) 



GENUS LXVI. — APLASTA (HUBN.). 



Fore-wings broad and entire, with the tips rounded, and the hind margin a little oblique ; 

 hind-wings rounded and concolorous, and the antennse of the male ciliated. The larva is spindle- 

 shaped, with raised spots and fine hairs, and it constructs a cocoon. The only species, * A. Ononaria 

 (Fuessly), has ochreous-grey wings, thickly dusted with brick-red, often with one or two dark shaded 

 bands formed of an agglomeration of these atoms. The small Southern variety Fuscataria (Hubn.) 

 is whitish, dusted with red. Expands about i inch. Inhabits Central and Southern Europe and 

 Western Asia in June and August ; in Britain it has occurred at Folkestone. The larva is green, 

 with small black waved spots on the back, and a yellow line on the sides. It feeds on rest-harrow 

 in May and July. 



GENUS LXVII. — GYPSOCHROA (HUBN.). 



Antennae long and slender, pubescent in the male, and finely ciliated in the female. The 

 wings arc narrow, slender, entire, and unicolorous, and the abdomen is long and slender, with a 

 projecting ovipositor in the female. The only species, G. Renitidata (Hiibn.), is uniform silvery- 

 white above ; the fore-wings and the costa of the hind-wings are smoky-grey beneath. Expands 

 about \\ inches. Inhabits South France, Sarepta, and Bithynia in June. 



GENUS LXVIII. — ACIDALIA (TR.). 



Small and delicate moths, the wings generally entire ; white, grey, yellow, or brownish, 

 generally dusted with darker, and usually with two dark transverse lines before and behind the 

 middle, and with a dark central shade between them ; the subterminal line indicated by dark 

 streaky dusting. The antennae of the males are rarely pectinated, but the males have often 

 peculiarly formed hind-legs, the tibiae being compressed, and the tarsi rudimentary ; and the 

 number of spurs is not constant in the different groups, and sometimes not even in the same 

 species. The larvae are slender, with transverse folds, and are mostly polyphagous. They 

 hybernate, and live on low plants in spring, but generally eat only withered leaves ; and most 

 of them may be fed on lettuce in confinement. They remain on the surface of the ground in 

 moss, &c., and change to pupae in a slight cocoon. The moths, which are generally called 

 " Waves " by English collectors, may be divided into several groups. 



A. — Tlic an/cii/icB of the male are pectinated, and nervjires 6 and 7 of the hiiid-ivings are 

 stalked. (The hind tibiae have terminal spurs in both sexes in Pygincearia, and middle spurs 

 also in Hnviifiisaria ; in the other species the males are without spurs, and the females 

 have terminal spurs only.) 



I. A. Hinuifusaria (Eversm.). — White, wings with a brown waved central line, a brown 

 submarginal fascia streaked with white, and brown nervures. A black central spot, and an 

 outer waved line ; the fringes are spotted with brown. Inhabits Sarepta and Armenia, and 

 perhaps Andalusia and Algeria. 



