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REPORT OF THE DEPARTMENT OF ENTOMOLOGY. 
EXPLANATION OF PLATES. 
XXII.—1, Pupa-case of periodical cicada; 2, Cases from 
which adults failed to escape; 3, Adult periodical 
‘cicada; 4, Adult dog-day cicada; 5, Larva of Papilio 
asterias on celery. 
XXIII.—1, Hut or chimney of cicada; 2, Sound produc- 
ing organ of male cicada; 3 and 4, Injury caused by 
egg-laying of cicada. | 
(Figs. 2 and 4, enlarged.) 
XXIV.—Adult periodical cicadas. 
XXV.-—lemale cicada depositing eggs. 
XXVI.—Palmer worm: 1, Egg; 2, Injury to young 
apples; 3, Pupa; 4, Moth; 5, Injured leaf, with at- 
tached pupae; 6, Typical wing; 7, Wing variations. 
(Figs. 1, 3, 6 and 7, enlarged; 2, 4 and 5, natural size.) 
Pratp XXVII.—-Work of palmer worm on apples. 
(Enlarged. ) 
PraTH XXVITI.—Palmer worm in partially completed retreat. 
PLATE 
(Enlarged.) 
XXIX.—White grubs feeding at root of an aster. 
