46 BRITISH MOTHS 



the head ; the antennse are slender and simple in both sexes ; the body is of a moderate length ; and the wings, 

 when at rest, form a triangle. The caterpillars are smooth and slender, with the head depressed. 



Species 1. — Zerene albicillata ". — (Plate LXV., Fig. 13.) — This species measures rather less than I5 

 inch in expanse of the fore wings, which are white, with a large brown patch at the base, marked with gray 

 waves ; the centre of the wing almost immaculate ; a large brown spot, varied with gray, near the extremity 

 of the costa, from which runs a very thin waved line ; the apical margin of the wing gray-brown, varied with 

 white and darker shades ; hind wings pale ; the margin broadly brown, preceded by a slender line. The 

 caterpillar is green, with a brown line at the sides of the anterior and posterior segments ; it feeds on the 

 raspberry, and the moth appears in woods in June, and is widely dispersed. 



"Synonymes. — Phalcena Geometra albicillata, Linnmus ; Donovan, 6, pi. 202, fig. 2; Haworth; Stephens; Wood, fig. 603. 



Phalcenavestalis, Der Naturforscher, 13, pi. 3, fig. 7. 



Species 2. — Zerene procellata". — (Plate LXV., Fig. 14.) — This species measures about 1^ inch in expanse 

 and has the wings white, with the base, a patch beyond the middle of the costa, and the broad apical margin 

 brown ; the latter with a square white spot on the middle, preceded and followed by some white dots ; the disk 

 and fascia with slight indications of waved lines ; hind wings white, with the margin brown, slightly strigose. 

 Taken in July, in woods, in various parts of the country ; not rare. 



" Synonymes. — Geometra procellata, Wien. Vera. ; HUbner ; Treitschke ; Haworth ; Donovan, 6, pi. 202, fig. 3 ; Harris' Expos, pi. 5, 



fig. 6 ; Wood, fig. 604. 



Species 3. — Zerene adustata". — (Plate LXV., Fig. 15.) — This species measures a little more than 1 inch 

 in the expanse of the fore wings, which are cream- white, with a greyish-brown patch at the base ; a deeply 

 angulated fulvous brown striga beyond the middle of the wing, followed by a gray-brown irregular bar, which 

 is much clouded, and extends to the margin in the middle, being traversed by a slender waved white line ; the 

 hind wings are white, slightly dotted and waved. The caterpillar is green, with a white spot at the sides, dotted 

 with red. It feeds on the spindle-tree; and the moth appears in June and in August. It is a local, but not 

 very rare insect. 



° Synonyme. — Geometra adustata, Wien. Verz. ; HUbner ; Haworth ; Harris' Expos, pi. 5, fig. 1 ; Stephens ; Wood, fig. 605. 



Species 4. — Zerene rubiginata p. (Plate LXV., Fig. 16.) — This species measures from 9 to 13 lines 



in expanse of the fore wings, which are of a bluish-white, with a pale brown patch at the base ; a large spot 



of the same colour in the middle of the costa, extending half-way across the wings, and mottled with paler 



brown and white, and bearing an ocellated black spot ; the apical margin brownish-gray, darkest towards the 



apical angle, and traversed by a pale undulating line ; the hind wings bluish- white, with a dark dot in the 



middle, and a pale brown border. The caterpillar is slender and green, striped with yellowish lines. It feeds 



on the alder ; and the moth appears in June, and again in August, in woods, and is a widely dispersed and not 



a rare insect. 



p Synonymes. — Geometra rubiginata, Wien. Vera. ; HUbner ; I Phalcena albaria, Villers. 

 Haworth ; Stephens ; Wood, fig. 606. | Geometra bicolorata, Hufnagle. 



i^ * Species 5. — Zerene plumbataI. — (Plate LXV., Fig. 17.) — This species measures from 12 to 14 lines 



in expanse, and has the fore wings ashy- white, or lead coloured, with a dusky patch at the base ; a broad 

 one (much attenuated, and often interrupted behind) across the middle ; the latter marked with paler strigas, 

 and a dark central dot ; hind margin brown, with a pale waved striga ; hind wings ashy-lead coloured, with a 

 darker border, in which is a pale striga. Taken at the beginning of September, in Forfarshire. 



1 Synonymes Zerene plumbata, Curtis, Brit. Ent. pi. 643. I X. coniaminata, Stephens' Cat. ; but not of Hufnagle. 



Xerene plumbata, Stephens III. | 



