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a.
View in Quinnipiac Marsh, New Haven, before ditching.
b. Larva of apple twig miner. Enlarged twelve times.
C.
Mines in bark of apple twigs. Natural size.
MOSQUITO ELIMINATION WORK AND APPLE TWIG MINER.
a. Larval nests of spiræa leaf roller. Natural size.
d. Stems of evening primrose tunneled by weevils. Natural size. SPIRAEA LEAF ROLLER: LARGER PINE WEEVIL: INFESTED STEMS OF EVENING PRIMROSE.
WORK OF THE LARGER PINE WEEVIL.
Young stone pine, Pinus cembra, from nursery, injured by weevils.
Pupal cells in trunk of red pine.
b.