REVIEWS. 1338 
protectively coloured, whilst inedible ones are often brightly and 
conspicuously coloured. In support of these views Sir John 
Lubbock has examined the Macro-Lepidoptera, and Mr. P. 
Cameron the Tenthredinide, showing that both the sawfly and 
lepidopterous larve have great similarity in their variation. 
Mr. E. Saunders’ short observations on the hairs of British 
aculeate Hymenoptera are altogether original, and their impor- 
tance will probably be recognised at some future period. 
Of the twenty-one descriptive papers, twelve belong to the 
Coleoptera, two each to the Hymenoptera, Hemiptera, and 
Neuroptera; and one each to the Lepidoptera, Arachnida, and 
Myriopoda; but none call for any special notice here. The 
single memoir on classification is one in which Mr. A. G. Butler 
has attempted to show that the natural location of the digerude 
(“clear-wing” Lepidoptera) is between the Pyrales and the 
Gelechiide ; this is novel, but the arguments are well worked out 
and fully illustrated with a plate, so that no doubt they will 
receive the attention from systematists which they appear to 
deserve. We now come to five memoirs of more general interest, 
those relating to habits and economy. Last year we had occasion 
to notice one of Mr. Mansel Weale’s papers on South African 
insects, which had almost exclusive reference to the Lepidoptera ; 
this year “‘ protective resemblance” seems to be still the key-note, 
and many instances of undoubted mimicry are faithfully recorded. 
Dr. Fritz Miiller strikes a similar chord from Brazil, but more 
especially enlarges on the “odours emitted by” and “sound 
made by” various Lepidoptera. Professor Wood-Mason con- 
tributes four short notes on the structure and habits of various 
Mantide, and Mr. Dunning gives a digest of Ritsema’s recently 
published paper on the life-history of Acentropus (Tijd. v. Ent. 
1878). This is a favourite theme of Mr. Dunning’s, and he has 
the satisfaction of seeing several of his conclusions independently 
confirmed. Sir Sidney 8. Saunders has contributed a memoir 
on those very remarkable and somewhat abnormal Hymenoptera 
which inhabit various figs and assist in their caprification. Even 
considered apart from their life-history they are most interesting, 
but altogether we greatly wish for more information from 
M. Lichtenstein (who supplied Sir §. Saunders with his material) 
or some other competent source. Newman published a note in 
the ‘ Entomologist’ on similar insects, founded on Walker's digest 
