1S93.] . 241 



said these two species occasionally cross in a state of ratui-e. Mr. Fenn exhibited 

 long series of Spilonoma lubricepeda, var. radiata, St., bred from ova received from 

 Mr. Tugwell, QnopJios ohscurata, Hb., from Folkestone, and Macaria notata, L., 

 bred from ova, also Selenia lunaria, Schiff., and read a note tliereon. Mr. E.. Adkin 

 exhibited a series of Thecla hetulce, L., and read a note with reference to the order 

 of sexual emergence ; he also showed a short series of Pygcera pigra, Hufn. {reclusa, 

 Fb.), bred from larvae taken in Sutherlandshire last autumn. Mr. Jenner Weir read , 

 a note in which he stated that in a recent tour in Belgium, he had seen no Colias 

 Syale, L., and but one C. Edusa, Fb. He also stated how exceedingly abundant 

 the third brood of Polyommatus Phlceas, L., had been in his garden at Beckenham 

 this month. Mr. Tutt gave his experience of a day amongst the Lepidoptera in the 

 suburbs of Paris at the beginning of August, when Colias Syale, L., was in numbers. 

 Mr. Enock exhibited wheat stems containing pupae of the Hessian fly from Sidmouth, 

 where he found it infesting the wheat and barley, also examples of Chlorops tceniopus, 

 the destructive ribbon-footed corn fly. — H. Williams, Son. Secretary. 



ON SOME MEMBERS OF TEE INSTABILBLLA aROUP OF THE 

 G-ENUS LITA {GELECSIA, partim), WITH DESCRIPTIONS OF L. 

 SUMBELLA, n. sp., AND L. INSTABILELLA, DOUGLAS. 



BT NELSON M. EICHAKDSON, B A., F.E.S. 



Some time ago T was asked by Mr. C. Gr. Barrett to describe tbe 

 Lita bred from SucBda, a series of whicb be bad seen in my collection. 

 T tben tbougbt it better to defer doing so ; but, witb the concurrence 

 of Mr. Atmore, who bas brought the subject under public notice 

 {ante p. 45), and who appears to have made the earliest recorded 

 captures of the insect (with the exception of Mr. Hodgkinson), I now 

 venture on the task. It will be unnecessary for me to enter upon the 

 historical part of the subject, or to mention the various entomologists 

 who have successively discovered this species, as that is being fully 

 dealt with in a paper by my friend, Mr. E. E. Bankes, who will give 

 the synonymy of the species contained in this group. I therefore 

 proceed immediately to the description of the species which is bred 

 from Suceda fruticosa and 8. maritima, for which I propose the name 

 sucedella. 



Lita su^della, n. sp. 



I take as a type the most ordinary form. 



Exp. alar., 6'" — V", very rarely less than 6|"'. Fore-wings with the costa 

 slightly but regularly curved, the inner margin nearly straight after the inner basal- 

 angle ; hind margin of fringe nearly straight, of denuded wing slightly concave. 



G-round-colour of fore-wings ochreous, much mairbled with darker and lighter 

 shades of the same colour, and with slate coloured or Mark greyish-ochreous scales, 

 which distribute themselves more or less regularly in sin^ rows along the veins ; 



