12 THE ENTOMOLOGIST. 



species and genera ; that after a specified date they publish an 

 official catalogue, the titles in which could be changed only at 

 regular quinquennial revisions.* 



As in Britain, the weather of the 1916 season has been very 

 unfavourable, and insects, judged by British standards, very 

 scarce. 



Papilio machaon apparently is common everywhere. The 

 spring brood on the Somme and the , summer brood in the Pas 

 de Calais were both numerous. I do not know whether it occurs 

 in Flanders. The three common Pierids were the only ones 

 observed, and they are unusually abundant on the land, now 

 uncultivated for two years, immediately behind the front line. 

 In the Souchez area the summer brood of napi showed a 

 tendency to produce spring ? forms, and both rajjfs and napi 

 were often of exceptional size. 



Euchloe cardamines M'as abundant in the Somme area, and 

 is doubtless so along the whole line. 



Colias hyale produced a numerous spring brood on the 

 Somme, but C. eclusa was not observed in this locality or season. 

 Further north I saw one edusa near Souchez in August, and found 

 .hyale common near Bruay in September. 



Gonepteryx rhamni I have seen commonly wherever I have 

 been at appropriate seasons — Flanders, Artois, Picardy. 



Argy)inis selene, one specimen near Bray, Somme. 



A. eupJvrosyne, one or two seen on the wing near Corbie, t 



A. paplda, very common in a wood near St. Pol and no doubt 

 -in many other places. I feel sure, however, that it did not occur, 

 or only rarely, in the extensive woods near the line at Souchez. 

 One specimen near Bruay. 



. Melitaa aurinia occurred in the Somme marshes, but in very 

 small numbers. I saw it nowhere else. 



■''- Captain Smart is evidently unaware that the Committee of his dreams 

 has ah'eady materialised. The only drawback I fear is that though we are 

 ■ certain that the labours of the International Committee on Nomenclature 

 established at the Oxford Congress of 1912 will terminate after the war, 

 we do not know which war. Indeed, the complete revision of entomological 

 nomenclature, in so far as it affects even the lepidoptera we were once 

 permitted to regard as "macros," judging from present results, may fairly 

 be anticipated about the date of — the Greek kalends. — H. R.-B. 



t Corbie in the department of the Somme is on the chalk, and is a 

 favourite collecting ground with Parisian lepidopterists in peace time. My 

 friend, M. Ferdinand le Cerf, keeper of the Lepidoptera in the Museum 

 of Natural History at Paris, directed my attention to the locality long ago, 

 and I only regret that time and opportunity have been wanting to follow 

 his direction. Hipparchia briseis occurs here; and Captain Smart should 

 have met with at least two other Coppers in the department, Chrysoplianus 

 Jiippothiie, and G. dorilis. Duponchel says that the former species used 

 to be very common in the peaty marshes round Amiens, marshes which 

 I suspect will some day restore G. dispar, var. rutilus to the fauna of the 

 north of France. G. dorilis I myself observed near.Crecy; and M. Postel 

 records it from Hedeauville. — H. R.-B. 



