262, THE ENTOMOLOGIST. 
rufus, Chortippus parallellus, Stauroderus bicolor, and G. maculatus 
from the North Downs escarpment, and gave notes on their habits 
and habitats.—Hy. J. TURNER. 
Lonpon Naturat History Society.—October 3rd.—Mr. L. W. 
Newman, F.E.S., exhibited slate-grey males of Agriades thetvs 
(adonis), and one showing a curious mixture of the two colours 
slate-grey and brilliant blue. The grey form has occurred before, but 
the mixed specimen is unique; all were found at one spot. The 
structure of these grey insects is extremely delicate, and to secure 
perfect specimens they must be taken drying their wings; otherwise 
they are invariably badly damaged. Mr. Newman also exhibited 
Agriades coridon, vars. roystonensts, inequalis, and vmpar, five having 
left-side small wings and seven right-side small wings, several females 
with blue streaks, and also two with tawny streaks on the usual 
ground colour.—J. Ross, Hon. Sec. 
RECENT LITERATURE. 
Etudés de , Lépidoptérologie comparée, fasc. xi bis. Contributions 
ad UHtude des Grands Lépidoptéres d’Australie. Genres 
Coscinocera et Xyleutes. Par CHARLES OBERTHUR, CONSTANT 
Hovursert, et F. P. Dopp. Rennes. Septembre, 1916. 
M. OBERTHUR continues his contributions to our world knowledge 
of the Lepidoptera with a magnificent quarto fascicule devoted 
entirely to the mammoth moths of the Australian continent. The 
form of the previous volumes of the ‘Ktudes’ being inadequate to 
meet the abnormal requirements of the illustrations of this series, 
the several papers included are presented in large readable type, 
and the figures photographed direct from the model, are in all 
instances of life size. The result is altogether satisfactory; and it 
is no exaggeration to say that the figures are worthy of the 
accompanying letterpress. The collaboration of a British-born 
entomologist with the two distinguished French authors whose 
names appear on the cover is also gratifying testimony to the 
perfect entente existing with our neighbours alike in the world of 
science and in the world of politics. Mr. Dodd’s biological notes on 
Coscinocera hercules, Misk., as well as those on the vast Australian 
Cossidz, will be of exceptional use to the student of ancestral forms, 
and M. Oberthiir’s “ Notes critiques et descriptions de trois Espéces 
nouvelles” (part v), indicate a new and hitherto little explored 
field for research—this paper being illustrated by photographs of 
the Xyleutes in his collection; while M. Houlbert traces their 
distribution from Australia across the ‘lost continents,” through 
South and Equatorial Africa to South and Central America, the 
eastern coast of Australia being apparently the richest in actual 
species of the genus. We offer our sincerest congratulations to 
M. Oberthiir in that, amid the stress and turmoil of a war in 
which he is deeply concerned, he is still issuing from the Rennes 
Imprimerie the magnificent works so long maintained at the same 
high level of scientific value, and appropriate illustration. Looking 
through the eleven fascicules of the ‘Etudes’ already published we 
readily understand how it is that M. Oberthiir holds so closely to 
