NEW BRITISH SPECIES IN 1855. 33 



Chilo obtusellus, n. sp. {Frontispiece, Fig. 5.) 



By the extremely obtuse anterior wings, and pure white 

 posterior wings distinguished from all other species of the 

 genus Chilo. 



Expands 14 — 16 lines. Anterior wings very pale brownish- 

 ochreous, with two small dark fuscous spots on the medial 

 nervure, between the base and the middle of the wing; a 

 third spot is placed beyond the middle rather nearer the 

 costa; towards the hinder margin is a row of small dark 

 fuscous spots placed rather obliquely; in some specimens 

 there is an additional spot on the fold near the base ; the 

 hinder margin of the anterior winys is unusual!?/ straight, 

 with a slight elbow towards the anal angle ; cilia unicolorous 

 with the wings, or a little darker. Posterior wings pure 

 white, with a dark fuscous marginal line at the outer angle ; 

 cilia white. 



The specimen of this insect, shown me last year, was taken 

 by Mr. Buxton, at Horning Fen ; this year other specimens 

 have been taken in the same locality by Mr. George King, 

 whom Mr, Buxton employed to look out for the novelty. 



It flies in July ; no doubt the larvae and pupse might be 

 collected in the stems of some aquatic plant. 



This insect differs from C. Cicatricellus in the form of 

 the hind margin of the anterior wings, and by the absence 

 of the ocellated spots along the subcostal nervure. 



Mixodia Hawkerana, Stevens, n. sp. 

 Somewhat resembles M. tenerana (Ratzburyhia?ia), but 

 paler, the dark fascia more oblique, and the space preceding 

 it on the inner margin not paler than the ground colour of 

 the wing ; it has some superficial resemblance with Catoptria 

 nnodestana, but it is much darker and more reddish, and 

 with no distinct ocellus towards the hinder margin of the 

 anterior wings; the posterior wings also are much darker. 



c5 



