7g BRITISH MOTHS 



liind wings are white, but more ashy in the female, with the margin spotted with dusky. The thorax is ashy, 

 spotted with black, and the abdomen milky white, with dusky marks. There are several varieties, chiefly 

 diflFering in the deep or paler ground colour of the body and wings, and the intensity of the markings. 



Tiic caterpillar is green, with a reddish head, the back dull lilac, separated from the green colour by an 

 angulated white stripe. It, hovvever, dififers considerably in its colours at different periods of its larva state ; 

 when full fed it encloses itself in a cocoon formed of chips of wood agglutinated together so firmly that it is 

 almost impossible to cut it with a knife. It feeds on willow, poplars, &c. in August, and the moth appears in 

 the betrinning of the following summer. 



SPECIES 0.— CERURA ERMINEA. Plate XV., Fig. U, 1.5. 



Synonymes. — Bombyx ertninea, HUliner ; Ochscnheimer ; Curtis ; Steplicns ; Wood, lud. Em., pi. 5, fig. 22. 



This species is very closely allied to the preceding, but is smaller, being 2^- to 3 inches in expanse ; the back 

 of the thorax is white, spotted with black ; the abdomen, with the four middle segments, black in the middle 

 and along the sides, leaving a white dorsal line ; the extremit}' white, with two black double lines at the middle ; 

 the wings milk-white, with a smaller fascia formed by the two parallel lines (making a V in the middle) ; near 

 the base a blackish middle stripe, followed by waving stripes and marginal punctures ; the under wings in the 

 female white. 



The caterpillar feeds on various species of Populus, and very much resembles that of the preceding species ; 

 the head has two black spots, and the anal filaments are not spotted with black. 



DESCRIPTION OF PLATE XVI. 



Insects. — Fiir. 1. Endromis versicolor, male (the Kentish glory. moth). 2. The Female. 3. The Caterpillar. 

 " Fjg. 4. Disphragis Cseruleoccphala, male (the figurc-of-S moth). 4. The Caterpillar. 



Fig. 5. Apoda Testudo (the small oak egger-moth) male. 6. The Fem.tle. 7. Tlie Caterpillar. 29. The Chrysalis. 

 " Fig. 8. Heterogenea Asellus. 9. The Caterpillar. 30. The Chrysalis. 



" Fig. 10. Fumea Nitidella (the shining chimney-sweep). II. The Caterpillar. The case is figured to the left of fig. 5. 



" Fig. 12. Fumea PuUa (the small chimney-sweep). The case is figured near the top of the right wings of fig. o. 



*' Fig. 13. Fumea Muscella (the transparent chimney-sweep). 



" Fig. 14. Fumea Bombycella. 



•' Fig. 15. Fumea Pectinella (the light chimney-sweep). 



" Fig. 16. Psyche Fusca (the brown muslin moth). 28. The Female. 26. The Caterpillar, ^ larger than nature without its case. 



27. The Chrysalis of the female. 

 '* Fig. 18, Nudaria Hemerobea. 



" Fig. 19. Nudaria Mundana (the muslin moth). 20*. The Caterpillar. 



" Fig. 20. Nudaria Senex (the round winged muslin moth). 



Plants. — Fig. 21. Alnus glutinosa (the common Alder). 22. The common oak. 23. Salix arenaria (the downy mountain willow). 



24. Briza media (common quaking grass). 25. Cetraria glauca (a common Lichen). 



Endromis versicolor male and female, Apoda Testudo male and fem.ale, and the three species of Nudaria, are from specimens in the Museum : 

 F. Nitidella, F. Pulla, and P. Fusca are from Continental specimeus, furnished to the Museum by Dr. Becker : H. Asellus, from the cabinet of 

 Mr. Stephens ; and D, Caruleocephala, from a specimen sent to me by Mr. H. Douhleday. The caterpillar of E. versicolor is from an original 

 drawing by Standish ; that of D. C'a'ruleoccphala, from Donovan. All the others are from Hiibner,'with the exception of the whole of the outlines 

 relating to P. Fusca, which are from drawings furnished by Mr. Westwood. 11. N. H. 



