AND THEIR TRANSFORMATIONS, 89 
L. Vau-nigra, 8. Papyratia, and S. Urticm, are from specimens iu the British Museum ; L. ceenosa is from the cabinet of Mr. Stephens; the 
varieties of S. lubricepeda and S. Menthastri are from the cabinet of Mr. Bentley; the §. radiata is a fresh female specimen, much finer than the 
original male specimen of the Haworth cabinet (also in possession of Mr. Bentley), but perfectly agreeing with it in the general character of the 
markings: all the others are from specimens furnished by Mr. H. Doubleday. The caterpillar of P. chrysorrhvea is drawn from nature; that 
of L. ceenosa is from Curtis: all the others are from Hiibner. H. N. H. 
LAGLIA, Steppers. (ORGYIA, vp. Botspuyat.) 
In this genus we find the caterpillar (fig. 6) closely resembling that of the Vapourer moths (pl. 17, fig. 9 
and 12), which has evidently induced Boisduval to unite its type with that genus ; from which it may, 
however, be distinguished by its very differently-formed wings, longer antenne, with the branches termi- 
nated by several diverging bristles, and winged females; which, nevertheless, in their robust bodies and 
comparatively short wings, as compared with those of the males (a striking peculiarity), evidently show an 
approximation to the Vapourers. The caterpillars, moreover, construct an opaque, nearly oval, cocoon. 
SPECIES 1.—LAiLIA CCENOSA. Prater XVIII., Fie. 5 and 6. 
Synonymes.—Bombyz cenosa, Hiibner ; Curtis, Brit. Ent. 2, pl. 68; Wood, Ind. Ent. tab. 7, fig. 61. 
This species measures 135 to 12 inch in the expanse of the fore wings, which in the males are, together with 
the head and thorax, of a pale ochre-brown, with a slightly defined row of brownish subapical spots. The 
abdomen and hind wings are paler. The female is white, slightly tinged with buff. - 
The caterpillar is black, thickly clothed with yellowish hairs, and four thick yellow tufts down the back, and 
with two long black pencils of hairs at the head and tail.. It feeds on the Butomus umbellatus in July, and 
the moth appears in the same or the following month. It has hitherto occurred only in the fens of 
Whittlesea Mere. 
Arcturus Sparsuait (Curtis, Brit. Ent. pl. 336; Wood, Ind. Ent. tab. 7, fig. 63); a cream-coloured 
insect, with orange-coloured antenne, and a very long fascicle of hairs at the tail, was stated by Mr. Curtis to 
have been captured by Mr. Sparshall in a lane near Horning, on the 7th of August, 1829 ; but from information 
given to me by Mr. Edward Doubleday, received from Mr, Sparshall himself, there is great reason to fear some 
confusion of specimens had taken place. Indeed, Boisduval expressly states that the insect is American— 
“Habitat Americam et erronea ut species Anglica adscriptus,” Gen. et Ind. Lep. p. 67. In the veins of the fore 
wings it does not agree with any of the more typical Arctiide. It is therefore omitted from the present work. 


LEUCOMA*, Srepuens. (ORGYIA, vp. Borspuvat. LARIA, vp. Hier.) 
This genus is distinguished from all the preceding by the snowy whiteness of the wings, which are but 
sparingly covered with scales ; the palpi are short and acute ; the body is not spotted, and the back not crested. 
From the next genus it is at once separated by the caterpillars, which have tufts down the back, but without 
elongate-clavate pencils of hairs. " 

SPECIES 1.—LEUCOMA V. NIGRUM. Puare XVIII., Fie. 1. 
Synonymes.—Bombyx Vau-nigrum, Fabricius ; Haworth ; Ochsenheimer ; Stephens (Leucoma V-n.) ; Wood, Ind. Ent. t. 7, fig. 62. 
Bombyx nivosa, Hubner. 
This species measures 1} inch in the expansion of the wings, which are snowy-white, the anterior marked 


* Named from the Greek, in allusion to the white colour of the moth. 
N 

