220 THE ENTOMOLOGIST. 



June 29tb. — Bred the beet-fly {Chortopldla hetce) from another 

 of the Chenopod family, the Atriplex BaUngtonii, from Conway 

 Bay, in North Wales. This makes the eighth representative of 

 the clan that has yielded me the fly. 



July 7th. — The mines of the snowberry-leaves {Symphoria 

 racemosa) gave me the Phytomyza nigricans of Macquart in fair 

 abundance. Weyenbergh, I believe, named this identical species 

 Harlemensis about the middle of the present century, under the 

 impression that it was a nova sjjecies, as it might be at that 

 time. He remarks in his notice thereof that the larva, in 

 feeding, left behind it a line of frass, much after the fashion 

 of a Nepticula larva. This I found to be the case. The mines, 

 which are conspicuous on the leaves of the shrub, are much con- 

 torted and white. 



July 10th. — The leaf-mines of Ranunculus repens, and beauti- 

 ful mines they are, yielded me Phytomyza flava, but not in any 

 abundance. The pupae are of a bottle-green colour. The larvae 

 pupated freely, creeping forth from the mine and attaching their 

 pupa-cases to the sides and bottom of the glass-topped box. It 

 is possible that the pupae missed the necessary moisture, for the 

 imagines only sparingly emerged. The flies are yellow in colour, 

 and very restless. 



July 21st. — " Onion flies " beginning to issue in some plenty 

 from pupahood. The species that affected our onion-beds here 

 is Chortophila platura. This fly was known to Goureau as 

 affecting the shallots on the Continent. The larva gradually 

 reduces the plants into a stinking mass. Pupates below the sod 

 near the bulb, and puts on wings in due course. Dr. Meade, in 

 a letter dated the 27th of July, states that he has bred from them 

 two Chortophilas distinct from mine, viz., C. cilicrura, Piondani, 

 and C. varicolor, Meigen. These facts show, he adds, " that the 

 onion tribe is preyed upon by several species of Anthomyiidce, so 

 that none can be called ^a?- excellence the onion-fly." 



July 24th. — Bred the beet-fly from another of the Chenopod 

 tribe {Atriplex triangularis), found as a food-plant on the Sussex 

 coast. This discovery, by Mr. Bloomfield, was briefly noticed in 

 1880, though the species of Atriplex was not truly named. The 

 more I look into this beet-feeder and its food-plants the more I 

 am convinced that it is not very particular as to the food-plant, 

 if it savour of the Chenopod tribe. 



