N0NAGRIA SPARGANII. 47 



covers swelled out a trifle more than the rest ; the 

 head had a beak, or rather pointed frontal projection, 

 and the longish abdomen sloped off beneath the end 

 of the last segment to form an obtuse dorsal ridge 

 with granulated surface, and having two minute blunt 

 thorny projections wide apart, and a few minute 

 bristles between them. The colour, at first pale 

 whitish-green, changed gradually to brown, and in 

 four days the head, thorax, and wing-covers became 

 darkish mahogany-brown, the abdomen bright pale 

 ochreous, and it remained so about twenty-three days, 

 wben a further change to a dark purplish red came 

 uniformly over the entire surface, lasting for four 

 days, and then the perfect insect came forth ; thus the 

 pupa state lasted about a month. (W. B., 13, 9, 79; 

 E.M.M., XVI, 99, 1879.) 



NoNAGRIA TYPKM. 



Plate LXI, fig. 4. 



Larva elongate, brownish-ochreous ; head reddish- 

 brown, a shining plate of the same hue on the second 

 segment ; two fine dusky lines run down the centre of 

 the back to the posterior segment, which is dark brown. 

 There are two pale ochreous stripes along the sides, 

 and below them are placed the black spiracles ; belly 

 and prolegs paler ; the anterior legs whitish, tipped 

 with dark brown. 



This larva feeds on the pith, within the stem, of 

 Tyjpha latifolia (reed-mace), is full-fed in August, and 

 about the end of the month changes within its abode 

 to a long dark brown pupa, the tail of which is 

 attached to the upper portion of the excavation, the 

 head thus hanging downwards, and being one inch and 

 a half from the hole in the outer rind, through which 

 the moth emerges in September. (W. B., Zoologist, 

 1865, p. 9513, where it is quoted from a more ephemeral 

 magazine, Young England.) 



