146 THE entomologist's record. 



articles " on " The Migration and Dispersal of Insects," he has made 

 considerable extracts in his introductory chapter. 



We have received from Herr Harry Federley, of Helsingfors, 

 Finland, two articles published by him some time ago in the Acta 

 Societatis pro Fauna et Flora Fennica. The first on " The Colour of 

 some Lepidopterous Cocoons and the Similarity to their Environment." 

 The larvae experimented with were those of species in the genera 

 Satiirnia, Cerura and Dicranura. One result of the experiments was 

 to prove that if the atmosphere surrounding the cocoons were kept dry, 

 the cocoons would be colourless either in the dark or when fully 

 exposed to the light, and that the brown coloration was brought out 

 by dampness at anytime, either during the manufacture of the silk for 

 tbe cocoon or even some years later. The second article discussed 

 " The Northern Races of Dicramda vinnla," with figures of var. 

 fennica, a paler form than the type and characteristic of S. Finland, 

 and of var. phantoma, a much darker blackish form, characteristic of 

 N. Finland. Much enlarged figures of the structure and arrangement 

 of the scales of these forms with those of the type were also given. The 

 numerous aberrations were at the same time referred to. 



The Irish Naturalist, as a rule, contains but little entomology. The 

 March number, however, includes a considerable contribution towards 

 a record of " Irish Ichneunionidae," by the Rev. W. T. Johnson, and 

 also an account, by G. W. Nicholson, M.A., M.D., F.E.S., of the 

 coleoptera taken by him in September at Cloverhill, Co. Cavan, and at 

 Balrath, Co. Meath. 



Several lovers of nature in Yorkshire haveduring the last two or three 

 years taken up the study of the Arachnida, and J.Vie Naturalist has at 

 times contained reports of their observations. In the March number 

 Mr. Falconer, of Huddersfield, contributes a long list of spiders which 

 he has observed, with notes on their occurrence and habits. The 

 author says that up to the present time 314 species have been recorded 

 from the county, a number only exceeded by Dorset, the home of the 

 great arachnologist, Pickard-Cambridge. 



The volume of British Lepidoptera, left unfinished at the death of 

 our late Editor, is rapidly nearing completion at the hands of Mr. 

 Wheeler, and the Index is in a forward state, practically ready for the 

 printer. Most of the plates are also either completed or in hand. 

 Unfortunately, the MS. relating to Hamearis lucina was not sufficiently 

 complete to indicate the author's views, and hence that species has not 

 been dealt with. Nevertheless, the matter relating to the other species 

 has been enough to ensure a volume of about the average size of the 

 previous volumes, and, thanks to the strenuous work of Mr. Wheeler, 

 is not a whit less interesting and useful than they are. 



Still the craze for registering and naming the forms and aberrations 

 of the Faniassius species goes on. In the March number of the 

 Entomologische Mitteilunijen Herr Felix Byrk discusses the variation in 

 Parnassius breuieri, and illustrating with figures several new aberrations 

 which he describes. 



Two separata from the Proceedings of the Second EntoDiolor/ical 

 Congress, 1912, lie before us. One, by Dr. Chapman, deals with 

 " Some Experiments on the Regeneration of the Legs of Liparis 

 difipar, h." and is illustrated by ten plates. The object in the first 

 instance was to determine which joints in the larval legs corresponded 



