



AND THEIR TRANSFORMATIONS. 241 
ending towards the outer ang it be eer 
ext g gle, where it becomes attenuated to a fine line ; it bears several slight cloudings, 
forming a subapical flexuous striga, and a minute row of dark dots on the margin; the hind wings are pale 
gray-brown. The caterpillar is pale buff-coloured, with a dark dorsal line, and several pale reddish lateral ones 
It feeds on the common bramble, and the moth appears in June. It is not an uncommon species in the woods 
near London, and other parts of the south of England. 

SPECIES 2.—ERASTRIA ALBIDILINEA. Prater LII., Fie. 25. 
Synonyme.—Phytometra albidilinea, Haworth; Stephens ; Wood, Ind. Ent. pl. 17, fig. 427. 
This species measures 1 inch in expanse, and is very closely allied to the preceding insect, of which it is 
regarded as a probable variety by Curtis and Stephens, with the markings suffused, the pale patch at the anal 
angle of the fore wings being obliterated, and the subapical pale flexuous striga very rudimental. It is captured in 
company with the preceding species, according to Mr. Stephens, but very rarely. 

SPECIES 3.—ERASTRIA APICOSA. Puare LIII., Fie. 12. 
Synonyme.—Phytometra apicosa, Haworth; Stephens (Erastria a.) ; Wood, Ind. Ent. pl. 17, fig. 425. 
This species measures | inch in the expanse of the fore wings, which are of a shining blackish colour from 
the base to beyond the middle, with the apical margin and outer stigmata purplish ; the latter oblique, and 
connected with the pale space following the third striga, which is slender, black, and much curved ; the subapical 
one is pale and tortuous ; the costa, towards the apex, with several small pale dots ; hind wings brown, with a 
darker central dot. A few specimens only of this species are accorded as British, but their habitat is unknown. 
It is omitted by Mr. Doubleday from the list of native Noctue. 

SPECIES 4.—ERASTRIA VENUSTULA.,. Puare LIII., Fic. 18. 
Synonyme.—Voctua venustula, Hiibner; Haworth; Stephens ; Wood, Ind. Ent. pl. 17, fig. 422. 
This species measures about 3 of an inch in expanse of the fore wings, which are whitish-buff, with the 
middle of the disk and the apical margin brown, with a central rosy dash and a black dot ; the strige are rather 
indistinct, the subapical one terminating in a brown patch on the costa ; hind wings pale brown, with rosy cilia. 
The caterpillar is reddish-brown, with two bright orange belts, a dusky dorsal line, and curved stripes on the 
sides. The perfect insect appears in June. It is extremely rare, said to have been taken formerly in Epping 
Forest. 


HYDRELIA, Gutnéfz. ERASTRIA, v., Curris, Srepuens. 
This genus differs from the preceding by having the abdomen not tufted along the back ; the palpi are 
elevated, with the terminal joint short and scarcely visible; the wings with strongly-marked stripes, on which 
the strigze are obliterated. The caterpillars are of bright colours, with the line above the spiracles only distinct ; 
they have fourteen feet, but the fifth pair is short and unfitted for walking. They feed upon plants in damp 
situations. 

SPECIES 1.—HYDRELIA UNCANA. Puate LIII., Fie. 15. 
Synonymrs.— Phalena Geometra uncana, Linneus ; Ochsenhei- Phytometra unca, Wien; Verz; Esper; Haworth ; Hiibner; 
mer; Stephens; Wood, Ind. Ent. pl. 17, fig. 420. Panzer, F. I. G. | Curtis (Erastria a.). 
f fea (8 
This species is about ] inch in the expanse of the fore wings, which 
with a buff tinge, the extreme costa being more dusky ; the stigmata are snowy white, 
are of a brown colour, with the costal 
margin broadly white, 
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