iSgi.] 



THE BRITISH NATURALIST. 



H7 



pale green larva with dark dorsal line of Swam, gfiseccapitella are sure 

 to be observed if looked for. 



We continue our pleasant walk, which during this month and the 

 next is most enjoyable before the sun gets very high, but have not 

 proceeded far when a large clump of mugwort (Artemisia vulgaris) 

 attracts our notice, and we are soon busy filling a tin box with the 

 mined, bladdery looking leaves containing the larva of Grac. omissella, 

 these leaves are best put into a flower pot, tied over with a piece of 

 calico and placed on the ground, with a piece of glass a little raised 

 over the top to keep off superfluous wet, when a fair number will be 

 bred. Now we will take a few of the tops of the Epilohium hirsiihim 

 growing at the side of the ditch, for they contain the larva of Lav. 

 fiilvescens, for our series of this insect requires renewing occasionally. 

 We must also take some of those mined leaves of the woody night- 

 shade (Solanum didcamara) growing in the hedge, for they contain the 

 larva of G. costella. 



■We will now again make our way to that damp spot where the 

 Epilobium angiistifoliiiiu is growing freely, for now is the time when the 

 larva of Lav. raschkiella is to be found mining the leaves ; these larva 

 feed up rapidly, four or five days suffice from the time they begin 

 mining the leaf to the time they are full fed and quitting it to spin up 

 among the rubbish, many of these keep coming out during August, 

 hut the majority do not emerge till the following June and July, so 

 that in breeding them the rubbish at the bottom of the cage ought not 

 to be disturbed. The leaves of the alder are now being rolled up by 

 the larva of P. immuvdana, and some of them mined by the larvae of 

 Lith. alnifoliella and Stettinella, another larva is also rolling up the 

 leaves longitudinally, viz. : Grac. elongella, which is whitish green with 

 dark dorsal line. The seeds of the cowslip (Primula officinalis) should 

 now be examined for the larva of E. ciliana, and the dwarf sallows in 

 open heathy places for the larvae of P. hastiaua. The larva of T. 

 mediana are at this time to be found among the seeds of various 

 umbelliferae, and the larva of CE. deutella in seeds of Cheropliyllum on 

 dry hedge banks. 



In sandy places on broken ground by the sea shore where the 

 common mallow (Malva sylvestris) is growing commonly, the flowers 

 and seeds should be examined at this time for the larva of Gel. vilella, 

 which fixed on the flowers when young, and afterwards on the unripe 



