62 . BRITISH MOTHS 



EUCOSMIA, Stephens. LARENTIA, p., Bdv. 

 The insect upon wliich this genus is established, agrees with the two preceding in the denticulated margin 

 of the wings, especially the hind pair ; the palpi are not, however, porrected like a beak, and the hind wings of 

 the males are furnished with a fascicle of hair-like scales on the inner margin ; the wings are pale above, with 

 very numerous slender waved strigse. 



Species 1. — Eucosmia undulata.'. — (Plate LXVIL, Fig. 5.) — Measures about 1^- inch in expanse; 

 wings of a greyish ash-colour, with about 16 slender waved dusky strigse, and a dark spot in the ordinary 

 position ; a more distinct and undulated whitish striga near the apical margin ; and the two strigae towards the 

 middle of the wing forming a chain-like series of marks. The perfect insect is found in woods at the end of 

 June, but it is not a common insect. 



J Synonymes. — Phalisna Geometra undulata, Liunseus; Harris, Exposition, pi. 11, figs. 5, 6; Donovan, vol. x., pi. 342, fig. 3; 

 Stephens ; Wood, fig. 625. Phaltsna serrata, Hufnagle. 



CHARISSA, Curtis. Gnophos, Boisduval. 

 The antenna; of the males have the joints compressed and produced internally ; the palpi are very short, 

 and nearly straight, not produced into a beak ; the abdomen is long and slender ; and the wings have the apical 

 margins, especially in the hind pair, indented ; and they are all marked with an orbicular stigma ; the hind 

 tibitB are subclavate in the males of some of the species. The caterpillars are rather short, varied in their 

 colours, and with a bifid tail. 



Species 1. — Charissa obscuraria k. — (Plate LXVII., Figs. 6, 7-) — Measures about 1^ inch in expanse ; 

 and has the wings of an ashy black colour, and very pulverose, with a curved dark striga towards the base of 

 the fore wings ; a black ocellus towards the middle of all the wings, beyond whicji is a black dentated striga ; 

 and the apical margin is marked with a slender dentated black line. The caterpillar is of violet-brown on the 

 back, marked with pale spots and lines. It feeds on the dewberry ; and tlie moth appears in July, occurring 

 in some plenty in the New Forest and adjacent counties. 



^ Synonymbs Geometra obscuraria, Wien. Verz. ; Hiibner; I Phalcena lividata) FaXmcins. 



Haworth ; Stephens; Wood, fig. 626. I Geometra anthracinaria, Esper. 



Species 2. — Charissa diluoidaria'. — (Plate LXVII., Fig. 8.) — This species is about 1 j inch in expanse, 



j^^ ' °'^' and closely allied to the preceding, but has the wings of a browner colour, irroraled with dark brown scales ; 



the fore wings with two crenated strigse (between which is an ocellus), the outer of which is not placed so 



backwards as in the preceding species ; hind wings with the dentated striga close to the ocellus ; cilia gray 



spotted with black. Taken in July, in Devonshire. 



' Synonyme. — Geometra dilucidaria, Wieu. Verz.; Hiibner (not of Esper) ; Stephens; Wood, fig. 627. 



Species 3. — Charissa pullata". — (Plate LXVII., Fig. 9.) — Measures 1^ or If inch in expanse; wings 

 pale ashy, much irrorated, with a denticulated striga before the middle of the fore vrings, and another similar, 

 common to all the wings ; at some distance before which is a black ring, with a pale centre ; a subapical slightly 

 clouded undulation and an interrupted marginal black line on all the wings. Taken in different places on the 

 south coast of England, in some profusion, in August. I have taken it in the Isle of Wight, and Mr. Haworth 



!'/««>••"■•' mentions Wales as its habitat. 



"" Synonymes. — Geometra pullata, Wien. Verz, ; Hiibner ; 1 Phnlcena Geometra quadripnstulata, Donovan, 13, pi. 463. 

 Haworth ; Stephens ; Wood, fig. C28. | Geometra dilucidaria, Esper (not of Hiibner). 



