.3.''. IV 



AND THEIR TRANSFORMATIONS. 139 



the apical margin obliquely truncate ; the apical angle acute ; the disc almost destitute of markings : they are 

 somewhat deenmbent in repose : the body is rather short, and tufted in the males. The species frequent damp 

 and rushy situations. 



Species 1. — Bactra egenana ^ — (Plate LXXXVII., Fig. 7) — Measures 7^ lines in expanse; fore wings 



dirty reddish buff, beyond the middle slightly irrorated with brown scales ; hind wings brownish white ; fringe 



of all the wings pale buff; fore wings beneath darker brown. Found in damp situations, in May ; Coombe 



Wood, Surrey. 



* Synonvme. — Tortrix egenana, H^voTth; Stephens ; VN'ood, fig. 990. 



Species 2. — Bactra pauperana ^ — (Plate LXXXVII., Fig. 8) — Measures 7^ lines in expanse ; fore 

 wings obscure brown, with a golden gloss, obliquely truncate at the tips, with two small oblong darker brown 

 spots on the disc, one towards the base almost obsolete, the second beyond the middle, curved and more distinct ; 

 a small dark brown dash also at the apex, and another, smaller, in the middle of the apical margin. Mr. 

 Haworth's typical specimens of this species have the costa, as well as the inner margin, slightly dotted with 

 brown. This is even the case with liis variety /3, which has the discoidal spot obliterated : hind wings brown. 

 Taken in damp places, Surrey, in May and the beginning of June. 



■■ SvNOKYME. — Torlrut pauperana, Haworth ; Curtis ; Brit. Ent. pi. 599 ; Stephens ; Wood, fig. 941. 



Species 3. — Bactra egestana <■ — (Plate LXXXVII., Fig. 9) — Measures 7 lines in expanse; fore wings 

 obscure reddish buff, obliquely truncated at the tip and immaculate, the inner margin of the wing bearing a verj' "'' "'' 

 slender black line without the minute black dots: hind wings brown; fringe shining, whitish-buff; antennae 

 short and slender. Taken near London amongst rushes in June. 



*^ Synonvme. — Toririx e^es/ana, Hawortli ; Stephens; Wood, fig. 992. 



Species 4. — Bactra plagana '' — Measures 7i lines in expanse; fore wings dark golden brown, with a 

 broad blackish striga running down the middle of the wing from the base to the apical angle, and occupying S. /, fc 

 nearly a third of the whole wing, but occasionally being less distinct : hind wings brown, with paler fringe. 

 Taken near London, and in Norfolk, but rare, in May and July. 



'^ Synonyme. — Tortrix p/«^ana, Haworth ; Stephens; Wood, fig. 993. 



Species 5. — Bactra fuscana"^ — (Plate LXXXVII., Fig. 10) — Measures 8j lines in expanse ; fore wings 

 golden-brown, or brovra, much mottled with chestnut patches, one of which is of large size, near tlie base of the 

 wing ; another is curved, and placed in the middle ; and three, forming a triangle, towards the extremity, the ^. A.-^vmi.** 

 outer one being placed upon the margin itself : the apex also with a dark dot ; the remainder of the wing is ^?- ''^- '^*^. 



prettily marked with minute fulvous irrorations ; hind wings brown. Taken amongst reeds, surrounding the 

 fresh-water lake at Napton Lee, in Devonshire, (from which Col. Montague obtained so many of the species of 

 aquatic birds now in the collection of the British Museum,) at the end of June, by Mr. Bentley. The markings 

 in some specimens are less distinct. 



• Synonvme Ablabia fascana, Chant's MS. 



Species 6. — Bactra uliginosana ^ — (Plate LXXXVII., Fig. 12) — Measures 9 lines in the expanse of the 

 fore wings, which are of a pale buff colour, and having a satiny gloss ; on the disc, towards the base, are a very . . 



few very minute black atoms scattered about, and on the middle of the disc a black dot ; hind wings paler, and 

 glossy ; the fore wings are much broader than in any of the other species, and have the costal margin much 



t 2 



