324 Mr. A. G. Butler on the Acceptance or 
Fig . 6. Entomis variostriata^ Clarke, a, right valve, showing both sulcus 
and striae to be modified, X 30 diam. ; b , striae and interstitial 
ornament, X 75 diam. 
Fig. 7. Entomis variostriata , Clarke. Right valve of a young individual, 
X 30. 
Fig. 8. Entomis variostriata , Clarke, a , right valve of a large specimen, 
with a central pit representing the sulcus ; and the striae modified, 
X 30 diam. ; b , ventral profile of the same, X 30 diam. 
Figs. 5-8 from Bicken, Westphalia. 
XXXVIII. — Notes made during the present Year on the 
Acceptance or Rejection of Insects by Birds . By Arthur 
G. Butler, F.L.S., F.Z.S., &c. 
As I consider that the question of the immunity from destruc- 
tion of certain insects by birds is still far from being an 
ascertained fact, I have again made notes this year on the effect 
produced by offering various insects and their larvae to the 
occupants of my aviaries. These are as follows : — 
Indoor Aviaries . 
1. Cockateels, Budgerigars, and Australian Zebra-Finches. 
2. Pekin Nightingales alone. 
3. Whydah-birds, Weavers, American Nonpareils, Saffron- 
Finches, St.-Helena Seed-eaters, Green Singing-Finches, 
Canary. 
4. Mannikins, Waxbills, and Blue Robins. 
Conservatory . 
5. Cage containing White-eared Persian Bulbul. 
Outdoor Aviaries . 
1. Chaffinches, Hen Bullfinch, Great Tit, Blackbird ; all 
in good-sized cages. 
2. Chaffinches, Greenfinches, Redwings ; all flying freely 
about. 
3. Large cages containing Blackbird and Fieldfare. 
4. Buntings, Bullfinches, Linnets, Goldfinch, Canaries, 
Siskins, Indigo-Finch, and Australian Zebra-Finches ; all 
flying freely about. 
Altogether thirty-six species, most of them flying about in 
