AND THEIR TRANSFORMATIONS. 257 



Species 15. — Gracillaria elongella ^ — (Linnffius? Stephens; Wood, fig. 1619 j and our Plate CXXII., 



Fig. 6) — Expands 6 to 71 lines ; very similar to the preceding ; fore wings red, sometimes irrorated with 



black, or fuscous (with two almost obsolete brown dots in the middle, placed longitudinally) ; hind wings 



silvery grey ; thighs reddish ; tarsi white. Near London, in August. 



*' Synonyme. — Tinea Signipennella, Hubner. 

 Orni,T Mayrella, Treiischke $ . Tinea ciliella, Wien. Verz. 



Species 16. — Gracillaria violacea — (Haworth ; Wood, fig. 1620 ; and our Plate CXXII., Fig. 7) — 

 Expands 5i to 6 lines ; fore wings purplish-violet, thickly clouded with blackish- purple ; hind wings brown. 

 Darenth Wood, &c. 



Species 17. — Grawllaria roscipennella — (Hijbner, &c. ; Wood, fig. 1621 ; and our Plate CXXII., 

 Fig. 8) — Expands 6 to 6i lines ; fore wings pale livid, with a very slight purplish tinge, with two small dots 

 placed obliquely before, and two others placed transversely beyond the middle, with various brown atoms 

 scattered over the wings ; the costa minutely spotted with brown ; hind wings brown. June, in woods. 



Species 18. — Gracillaria leucapennella — (Stephens; Wood, fig. 1622; and our Plate CXXII., 

 Fig. 9) — Expands 5 to 6 lines ; fore wings very pale, silvery-brown or sallow, sometimes whitish sulphur, more 

 or less sparingly irrorated with brown ; hind wings deep brown. New Forest, in June and July. 



Species 19. — Gracillaria sulphurella — (Haworth ; and our Plate CXXII., Fig. 10)— Expands 6 to 7 

 lines ; fore wings pale sulphur, finely irrorated with brown, with two very oblique converging abbreviated 

 brown streaks towards the middle of the costa ; the apical portion of the wing more tawny ; hind wings pale 

 ochreous-brown. Taken in the New Forest, in July. 



Species 20. — Gracillaria pr J!angtjst a— (Haworth ; Wood, fig. 1624; and our Plate CXXII., Fig. 11) 

 — Expands 6 to 6^ lines ; fore wings very narrow, ashy, or ashy-brown, with the base of the costa occasionally 

 broadly paler, and with some black lineols in the middle of the wing, more or less obsolete, and arranged into 

 an interrupted longitudinal stria. Taken on the trunks of poplars, and in hedges, in May. 



ACENTROPUS, Curtis. ACENTRIA, Steph. ZANCLE, Steph. (Olim.) 

 It is in this order, and provisionally in the present situation (although probably nearer to some of the 

 Yponomeutidfe), that I place a singular insect, regarded bv Mr. Stephens, at first, as Neuropterous, and 

 subsequently, by him and Mr. Curtis, as Trichopterous; but which possesses two characters eminently distinctive 

 of the Lepidoptera : namely, the presence of a pair of tippets, and a spur at the b.ise of the fore margin of 

 the hind wings ; * the legs are, however, entirely destitute of spurs, and the palpi (maxillary ?) large, drooping, 

 and densely clothed with scaly hairs. 



Species I. — Acentropus niveus^ — (Latreille; Steph.) — Expands 6^ lines; wings white and rather silvery ; 



fore ones with the costa ochreous, and the other margins slightly ochre. Taken in various places, in June ; but 



very rare. 



a SyNoNViMEs. — Frigane blanche, Oliv. Acentropus Garnonsii, Curtis, Brit. Ent. pi. 497. 



Zancle Hansoni, Steph. ; Noiuencl. Actntria nivosa, Steph. Cata]. 



* See my article on this insect, in Trans. Ent. Soc. 1, p. 117, and Introd. to Mod. Class. Ins. 2, pp.324 and 412, figs. 113, 11 — 17. 

 VOL. II. L L 



