28 THE ENTOMOLOGIST. 



adds, " C'est a tort que dans la collection de M, Goureau cette 

 espece {P. atr'qjlicis) est etiquetee P. hycregami (sic), qui con- 

 stitue une espece diffe rente." Haliday gives P. atr'qjUcis as a 

 synonym of P. beta in his papers on the " Metamorphoses of 

 Diptera" (Nat. Hist. Rev. iv. 187). Rondani gives A. atriplicis 

 as a synonym of his P. chenopodii (Bull. Soc. Ent. Ital. x. 161). 

 Schiner says, " Goureau's A. atriplicis is probably A. hyoscyami" 

 (Dipt. Austriaca, i. 652). Zetterstedt is perhaps the best authority 

 on the Antliomyiidce, but A. hyoscyami is amongst his " species 

 omissse;" and his countryman, Holmgren, has just described the 

 mangold-feeder as a neAv species, placing it in Zetterstedt's genus 

 Aricia. 



This year's attack of C. beta is unfortunate, as it may be 

 calculated to limit the culture of this useful root-crop, which is 

 now so generally extending in the North. However, it is a 

 repeatedl}' observed fact that these extraordinary appearances 

 are not continued in succeeding seasons ; so we may hope it may 

 be with the mangold -fly. This pest destroys the functions of the 

 leaves, frequently called the plant's lungs, and thus causes a 

 species of consumption ; it rarely proves fatal, but it affects the 

 growth and health of the plant considerably. 



Until we know more of the special habits of this pest no 

 practicable remedy can be given, except the self-evident one to 

 destroy when found, — whether it be the larva in the leaf-blotches, 

 the pupa in the ground, or the fly itself, if you happen to 

 know it. 



jVIaldon, Essex, December 0, 1880. 



[Points of specific distinction between Cliortophila betce, 

 Curtis, and some nearly-allied species, which all have red or 

 yellow palpi with black ends, and partly rufous or yellow legs. 



Genus Chortophila, Macquart. 



Pegomyia, R. Desvoidy (prt ). 



Eyes bare ; contiguous or subcontiguous in the males ; style 

 of antennoe naked, or slightly pubescent; alulets small, with 

 the scales equal in length ; abdomen narrow, subcylindrical or 

 flattened ; sixth longitudinal or anal vein of wings continued to 

 the posterior margin of the wing. 



