FENELLA WESTWOODI. 289 



Fenusa pygmcca, Healy, Ent., v, 300 (1. h.) ; Kalt., Pfl., 225, 227. 

 Phyllotoma tormentillce, Healy, Ent., iv, 135. 

 Fenella tormentillce, Andre, Species, i, 233 ; Cat., 28,* 2. 

 Melinia minutissima, Costa, Fauna di Napoli, 41, pi. Ixvi. 



Black ; mouth and antennae underneath fuscous ; knees, tibia3 and 

 tarsi, white ; trochanters pale fuscous. Wings hyaline, slightly infus- 

 cated, iridescent ; costa and stigma pale fuscous ; tegulco black, trans- 

 verse radial nervure received a little beyond the second tr. cubital 

 nervure. 



Length 1 line. 



The larva mines the leaves of Agrimonia Eupatoria 

 and Potent ilia rep tans, forming small brownish blotches, 

 each leaf sometimes containing, according to Healy, 

 fourteen larvae, but the number is generally much less. 

 There are two broods in the year, the first in early 

 summer, from which the imagos appear at the end of 

 June ; the second in the autumn. 



The larva is white. The head light brown, with 

 darker mouth parts and black eye spots. Beneath, on 

 the second segment, is a large black mark occupying 

 nearly its whole extent ; on each of the three following 

 segments is an irregularly- shaped black mark. Above, 

 on the second segment, there are two large marks, 

 somewhat square in shape but rounded off at the outer 

 corner, and like the other marks black. Legs encircled 

 with brown. When the food canal is filled the body 

 has a greenish tinge, the canal appearing as a broad 

 green stripe. The pupa stage is passed in the ground. 



F. nigrita would appear to be common in the London 

 district, but I know of no other habitat, although it is 

 no doubt of wide distribution. 



Continental distribution : Scandinavia, Germany, 

 France, Italy. 



2. FENELLA WESTWOODI, sp. n. 



Black; knees, anterior tibias and tarsi sordid testaceous; wings 

 smoky, the apex a little clearer. Antennae ten -jointed, pilose, the third 

 joint scarcely a half longer than the fourth which is a very little shorter 

 than the fifth, two last joints subequal, the apical conical. Sutures on 

 vertex deep, curved, the central portion of vertex behind the ocelli raised 

 and separated from them by a suture. The transverse radial nervure is 

 VOL. I. 19 



