Developmental Polymorphism in Choristoneura spp. (Lepidoptera: Tortricidae)
- 17 January 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Annals of the Entomological Society of America
- Vol. 70 (1) , 112-118
- https://doi.org/10.1093/aesa/70.1.112
Abstract
C. viridis Freeman, C. occidcntalis Freeman, and C. fumiferana (Clemens), exhibited 6, 7, and 8; 5, 6, and 7; and 6 and 7 larval instars, respectively, when reared on artificial diets. Males exhibited fewer instars than females. Head capsule width data for all 3 species support the developmental polymorphism hypothesis. A change in nutritional quality influenced the proportions of larvae with varying numbers of instars, but did not appreciably influence the kinds of resulting instar groups within a given species.This publication has 2 references indexed in Scilit:
- Elm Spanworm Head Capsule Widths and InstarsJournal of Economic Entomology, 1965
- Biological and Ecological Studies of the Spruce Bud wormJournal of Economic Entomology, 1949