208 Rey. 8. Graham Brade-Birks on Myriapoda. 
XXIII.— Notes on Myriapoda.n—XXVII. Wandering Milli- 
pedes. By the Rev. 8. Granam Brape-BirKs, M.Sc. 
(Manchester), Lecturer in Zoology and Geology, South- 
ab Agricultural College (University of London), Wye, 
enf. 
INTRODUCTORY. 
There are published records of a number of observations 
upon wandering millipedes. 
In a paper cited by Verhoeff (1900), J. Paszlavszky (1879) 
published an account of a migration of Brachyiulus uni- 
lineatus in the Hungarian Alféld, and made reference to 
observations by 'Témésvary on a case in Transylvania 
(‘ Természettudomdnyi Kézlony,’ x. p. 355) and to a remark 
by Taschenberg with reference to the appearance in mass of 
“ Julus guttulatus Fabr.” Concerning Témoésvary’s observa- 
tions, he says :—“ In grésster Anzahl war Julus terrestris L., 
J. fasciatus Koch und -/. trilineatus Koch vertreten; jedoch die 
beiden letzteren und J. wnilineatus waren viel spiirlicher als 
die erstgenannten. Ausserdem war noch eine bis jetzt nicht 
bestimmte Julus- oder Allajulus-Art, dann Lithobius, einige 
Geophilus und Limnotenia.” With regard to the names 
used in this passage I will do no more than point out that 
the last is obviously meant for Linotenia, and say that I 
have not tried to make out what animals are really intended 
by the names of millipedes used in it. In her report for 
1885 Miss Ormerod, (1886) p. 48, recorded “ the migration 
of’ Julids “in large numbers from one locality to another.” 
They were “ apparently travelling across from a field of Oats 
towards a piece of pasture land.” This event was described 
on the 3lst May as “A few mornings since,” and was 
reported from Rise Hall, Fakenham. Two years later 
Bollman (1888) referred to movements of Fontaria virgint- 
ensis (Drury) at Donaldson, Arkansas. Paszlavszky’s (1879) 
account was criticized by Verhoeff (1900) in publishing an 
account of a wandering in Alsace of Schizophyllum sabulosum 
(Linné), the specimens examined being referable to the var. 
lifasciatum in both sexes, and just a small number of males 
to the var. punctulatum. In the collection made on this 
oceasion there were two specimens of Cylindrotiulus londin- 
ensis, var. ceruleocinctus (Wood), but Verhoeff considered 
those to be accidentally present. Mauck (1901) gave an 
account of the swarming of Fontaria virginiensis near the 
