PHILEA IRRORELLA. 37 



the back, and the lower part of the sides, minutely 

 freckled with yellow ; the inconspicuous spiracles 

 dirty white, ringed with black. 



The short, stoutish pupa, placed in a cocoon of thin 

 webby silk, spun amongst the stones and debris. 

 (W. B. and J. H. 3 9, 12, 71 ; E.M.M. VIII, 171.) 



NlJDARIA MUNDANA. 



Plate XLIII, fig. 1. 



The full-grown larva was received from Dr. White 

 on the 31st of May, 1869, it having been captured 

 feeding on lichens on an old stone wall. 



Its length three-eighths of an inch, its figure rather 

 stout in proportion, uniform in bulk throughout ; the 

 legs all well developed ; six raised tubercles on each 

 segment bearing long straggling fine hairs ; the 

 ground colour of the back bright sulphur-yellow ; the 

 dorsal stripe dark greyish-brown ; a blackish dorsal 

 spot on the eighth segment ; the subdorsal line black- 

 ish-brown, the whole body below this, including the 

 legs, of a semi-translucent, pale greyish-brown ; all the 

 tubercles and hairs rather dark greyish-brown ; the 

 head dark brown. (W. B. and J. H., 9, 12, 71 ; 

 E.M.M. VIII, 171.) 



NlJDARIA SENEX. 



Plate XLIII, fig. 2. 



Eggs were received from Mr. Birks on July 18th, 

 1870 ; the larva? hatched on the 21st ; they fed on 

 decayed sallow and bramble leaves, on the young 

 growth of Hypnum sericeum and Weissia cirrata, and 

 on Lichen caninus. The larvas hybernated ; the last 

 moult took place early in May, 1871, and the larva 

 was full-fed about the beginning of June ; the imago 

 appeared on the 23rd of June* 



