AND THEIR TRANSFORMATIONS. 



203 



Species 4. — Yponomeuta rorella — (Hiibner ; Albin, pi. 70, fig. a — d; Wood, fig. 1284, and our Plate 

 ex., Fig. 23) — Expands about 9 lines ; fore wings snow-white, with from 20 to 30 small black dots, almost 

 arranged in rows, the apical margin being destitute of the smaller dots ; hind wings leaden-coloured. Tliis 

 may possibly be a variety of the former, in company with which it is found. 



Species 5. — Yponomeuta Padella * — (Fabricius, &c. ; Wood, fig. 1285, and our Plate CX., Fig. 24, and 

 CXI., g.) — Measures from 10 to 12 lines ; fore wings white, livid or leaden-coloured, with about 30 minute black 

 dots wide apart, and arranged in rows towards the base of the wings, but irregular beyond the middle ; those 

 towards the apical margin in transverse series ; hind wings leaden-coloured. Caterpillar dirty-ash, dotted with 

 black : it feeds on the whitethorn and apple, living gregariously in a common web, and defoliating the trees sometimes 

 to a vast extent, as described in my article upon its habits, in Loudon's Gardeners' Magazine^ vol. xiii., p. 133. 



' Synonyme. — PhaitBna evonymelta, Donovan, pi, 9 ; Wilkes, pi. 5 ; Harris (Aurelian), p). 3, fig. k — m. 



Species 6. — Yponomeuta plumbella — (Fabricius, &c. ; Wood, fig. 1286, and our Plate CX., Fig. 25, and 

 CXI., d.) — Expands 8 or 9 lines ; fore wings leaden- white, with numerous small black dots, one of which in the 

 middle is larger than the rest, and brownish ; the apex also with a rounded brownish spot ; hind wings brown. 

 Taken in July and August in hedges, in various parts of the South of England, but not common. 



DESCRIPTION OF PLATE CXI. 



Insects. 



-Fig. 1 



n 



Fig. 2 



w 



Fig. 3 



» 



Fig. 4 



» 



Fig. 5 



» 



Fig. 6 



»» 



Fig. 7 



n 



Fig. 8 



„ 



Fig. 9. 



„ 



Fig. 10 



SJ 



Fig. 11 



35 



Fig. 12. 



33 



Fig. 13 



33 



Fig. 14. 



33 



Fig. 15 



33 



Fig. 16 



33 



Fig. 17 



Telea Curtisella (the Curtisian). 



Telea Ambiguella (the small brown bar). 



Telea Crata?gella (the whitethorn bar). 



Telea Leucatella (the small white bar), 



Telea Comptella (the peacock's feather). 



Telea Lutarella (the muddy ermine). 



Telea Subfasciella (the slight barred), 



Telea Cajsiella (the purple-edged). 



Ederesa Semifusca (the long-winged white-back), 



Ederesa Mendicella (the purple white-back). 



Ederesa Albistria (the purple white-streak). 



Ederesa pruniella (the white-back). 



Ederesa tetrapodella (the blotched white-back). 



Ederesa semipurpurella (the half-purple). 



Ederesa Curvella (the brindled white-back ermine). 



Ederesa C'lematella (the barred- white). 



Ederesa Ossea (the cream-coloured). 



Insects. — Fig, 18. Ederesa OccUea (the eyed white-back). 

 „ Fig. 19. ArgjTosetia Gcedartella (the Ga:dartian). 

 „ Fig. 20. Argjrosetia semifasciella (the short gold-bar), 

 „ Pig. 21. Argyrosetia Brockella (the gold T\\.) 

 „ Fig. 22. Argyrosetia literella (the Greek-lettered gold). 

 „ Fig. 23. Argyrosetia Aurivitella (the golden riband). 

 „ Fig. 24. Argyrosetia Aurifasciella (the gold-banded), 

 J, Fig, 25. Argyrosetia I. V. ella (the gold IV.) 

 The larvae distinguished by letters belong to insects figured in 



Plates CIX. and CX. 



a, the caterpillar of Degcerella, in Plate CIX, ; b, the cocoon ; c, 



the chrysalis ; d, the cat. of plumbella, in Plate CX. ; e, the cat. of 



Gelatella, in Plate CX. ; /, the cat. of Fagella, in Plate CX. ; g, the 



cat. of Padella, in Plate CX. ; h, the cat. of Echiella, in Plate CX, 

 The insects figured in this Plate, with the exception of 7, 13, 



22, 23, and 24, from Wood's Index, are from the cabinet of Mr. 



Bentley. The caterpillars are from Hiibner and Fischer. 



Species 7. — Yponomeuta sedella — (Hiibner, Imhofi^, and our Plate CXI., Fig. 1) — Expands 8 or 9 

 lines ; fore wings of a pale bluish grey, with a few black dots arranged in rows ; the apical portion clear, except 

 a short transverse black streak near the apical margin. The caterpillar is greyish-white, with the sides 

 yellow, and the segments dotted with black. It feeds on Sedella telephium. The perfect insect was detected 

 last summer by J. F. Stephens, Esq., near Peckham. 



TELEA, Stephens. 

 The palpi in this group are slender and slightly ascending, incurved, and divaricating with the terminal 

 joint long, and slender ; the antennae are slender, and alike in both sexes, and the fore wings are convoluted iu 

 repose, sublinear ; generally of pale colours, with dark transverse fascise, or simply coloured, with a darker 



D d2 



