16 BRITISH MOTHS 



OUR AFTER YX, Leach. AC^NA, Teeitschke. 

 This very distinct form is at once characterised by the acute tips of the fore wings, and the tailed hind ones ; 

 the head small ; palpi short ; spiral tongue long ; antennae simple in both sexes ; the caterpillar long, slender, 

 10-footed, and with a bifid tail ; and the chrysalis inclosed in a cocoon of leaves, held together with silken 

 threads. 



Species 1. — Ourapteryx sambucaria'' — (Plate LIX., Figs. 29, 30, and 13, at foot of plate) — varies 



from 2i to 2i inch in the expanse of the wings, which, as well as the body, are pale yellow ; the fore wings 



with two straight darker strigae, the inner one extending also across the hind wings, which are marked with a 



dark spot on each side of the tail. The caterpillar dark brown, with darker lines speckled with white : it feeds 



on various trees; and the moth, which is very common, appears about the end of June. 



■■ Synonyme Ph. Geom. sambucaria, Linnosus; Donovan, 5, pi. 170 ; Albin, pi. 94, fig, a — d ; Wilkes, pi. 78 ; Curtis, pi. 508 ; 



Stephens ; Wood, fig. 491. 



CAMP^A, Lamarck. METROCAMPA, Latreille, Boisduval. 



This genus is closely allied to the last, but the male antennae are pectinated, and the hind wings much less 

 strongly tailed ; the fore wings are also slightly angulated in the middle, and the larvae are twelve-footed and 

 depressed, somewhat resembling those of the genus Catocala, the sides being fimbriated. 



Species 1. — Campjea margaritaria ^ — (Plate LIX., Fig. 32, and Plate LX., Fig. 42.) — This pretty 



species measures from If to 2 inches in expanse of the wings, which are of a pale, pearly, greenish white ; the fore 



wings with two pale strigse, each edged towards the middle with brownish, and the outer one extending across 



the middle of the hind wings. The caterpillar is greenish and brown at the sides, with white spots and black 



streaks, and an orange-coloured head. It feeds on various forest-trees, and the moth appears about the beginning 



of August, and is common in woods. 



• Synonymes Phal. Geom. Margaritana, Linn. ; Fabricius ; 



Donovan, vol. xvi. pi. 343. 



Bombyx sesquUHata, Borkhauseu, Esper. 



Geometra bipleuraHa, Villars. 

 Geom. vernariay Hufnagle. 



ELLOPIA, Stephens. METROCAMPA, pars. Boisduval. 



This genus is very closely allied to the last, but has the wings rounded and entire ; the palpi very short ; the 

 antennm bipectinated in the males. The caterpillar twelve-footed, and flattened beneath, and the chrysalis is 

 enclosed in a web amongst the leaves. 



Species 1. — Ellopia fasciaria' — (Plate LIX., Fig. 33) — measures about li inch in the expanse of the 



fore wings, which are grayish red, with a broad, darker, central bar angulated towards the costa behind, and edged 



with a paler shade ; the outer striga extending across the hind wings. The caterpillar reddish, varied with 



white and brown, with a red head. It feeds on fir ; and the moth occurs in fir plantations, towards the end of 



June, and is not common. . 



' Synonyme. — Phal. Geom. fasciaria, Linnseus ; HUbner ; Haworth ; Stephens; Wood, fig, 493. 



Ph. Neustraria, Hufnagle. 



