AND THEIR TRANSFORMATIONS. 



39 





the base obscure and not an^ulated, terminatino- in a white horse-shoe on the inner margin ; the broad central 

 fascia not solid, but gray in the middle and the posterior margin darker than in P. imnianata. Taken on 

 rocks near Arrachar, in Scotland, at the beginning of August. 



Species 2. — Polyphasia centum-notata''. — (Plate LXIV., Fig. 2.) — This very variable species measures 

 from 1 to li inch in expanse, and has the fore wings much spotted with brown, whitish-gray, and ferruginous, 

 the base being ferruginous-brown, undulated with dark strigse, beyond which is a very broad whitish fascia, 

 preceded by a slender dark line, and having a central slender black dot, and the outer portion (especially towards, 

 the costa,) dark-brown, the margin much angulated and produced in the middle ; beyond this the wings ai'e 

 much mottled, and have a slender white waved line, preceded by a ferruginous bar ; the hind wings almost 

 destitute of strigas. 



This is a very abundant species, found iu woods at the end of May, and again in August. The following 

 are probable varieties of this species. 



Polyphasia satukata, Stephens ; Wood, fig. 579, which has the fore wing ashy-brown, with a paler fascia 

 across the middle acutely dentated, and produced in the middle of the outer margin ; the disc traversed with 

 undulated strigas, and with a central elongate black spot, an indistinct ferruginous bar, and a waved subapical 

 whitish striga. Found in July in various districts, but not common. 



Poly^phasia perfu.scata, Haworth ; Stephens ; Wood, fig. 5S0, which has the fore wings somewhat ashy, 

 a simple black fascia at the base, and a broad central one produced on the middle of the outer edge, and strongly 

 dentated ; bordered with a pale striga, and having the usual black central dot ; beyond this is a ferruginous 

 streak, and interrupted white waved striga. Occurs at the same time and places as the preceding variety. 



Polyphasia co.mjia-notata, Haworth ; Steph. ; Wood, fig. 577, is chiefly distinguished by the fulvous or 

 luteous central fascia; the remainder of the wing being ashy brown, and much mottled. It is common, occurring 



iu the same woods with the former vari-ties, at the end of May, and again in the autumn. 



1 Synonymes.. — Phali£}La cenimn-nQtaliim,Y:^x\i^\M%\ Haworth; Stephens; Wood, fig. 575. 

 Geometra rupata, Wien, Verz. ; Hiibner ? 



Species 3. — Polyphasia IiMmanata ''. — (Plate XLIV., Fig. 3.)— This insect is about the size of the QUa-ui^ 

 preceding, from which, as well as the rest of the species of this genus, it is distinguished by the broad, solid, 

 brownish black central fascia, which is strongly dentated, and much more strongly produced in the middle of the 

 outer margin, and more acute than in its allies ; beyond this is a pale spot on the costa, gradually shaded into 

 bright brown or ferruginous, and with a wavy whitish subapical striga. There is much variation in the tints 

 of this insect, as well as in the central bar being occasionally ashy in the middle, with a black spot. It is a 

 common species, found in July, in woody places. 



Polyphasia amcenata, Stephens (given in " Syst. Cat." as a supposed variety of immanata), diiFers from 

 it in having narrower wings, with the outer edge of the basal fascia very much angulated, and with a very broad 

 black central fascia, dentated within, and very much produced in the middle of its outer margin ; the process 

 being composed of two lobes, of which the first is very broad and bifid, and the inner and shorter one very acute 

 and simple. Found in Devonshire. Wood's fig. 574 does not well agree with this description. 



' SvNONVME. — Phalana immanata, Haworth ; Stephens ; Wood, fig. 573. 





STEGANOLOPHIA, Stephens. ELECTRA, p., Curtis. 

 The insect which Mr. Stephens has formed into the present genus, is very closely allied to the last group, 

 but has the palpi more elongated and beak-like ; the males with a tuft of hairs near the base of the fore wings 



