Coevolution of the checkerspot butterfly Euphydryas chalcedona and its larval food plant Diplacus aurantiacus: larval response to protein and leaf resin

Oecologia ◽  
1982 ◽  
Vol 52 (2) ◽  
pp. 216-223 ◽  
Author(s):  
D. E. Lincoln ◽  
T. S. Newton ◽  
P. R. Ehrlich ◽  
K. S. Williams
Keyword(s):  
Food Plant ◽  
Larval Food ◽  
Larval Food Plant ◽  
Diplacus Aurantiacus ◽  
Euphydryas Chalcedona

The Influence of Photoperiod and Temperature on the Induction of Diapause in Diataraxia Oleracea L. (Lepidoptera)

1950 ◽  
Vol 27 (3) ◽  
pp. 365-376
Author(s):  
M. J. WAY ◽  
B. A. HOPKINS
Keyword(s):  
Light Intensity ◽  
High Temperatures ◽  
Larval Stage ◽  
Low Temperatures ◽  
Food Plant ◽  
Larval Food ◽  
Controlled Substances ◽  
Larval Food Plant

The induction of diapause in the pupa of Diataraxia oleracea is influenced by temperature and photoperiod during the larval stage. Low temperatures and short photoperiods tend to induce diapause while high temperatures and long photoperiods tend to prevent diapause. Diapause is not influenced by light intensity during the larval stage providing the intensity is above a certain minimum. Diapause is prevented at high temperatures (30-34° C.) if the larvae are reared in darkness. The photoperiod is operative as a factor influencing diapause only between the beginning of the moulting sleep prior to ecdysis to the last instar and the 3rd-5th day of the last instar. A single diapause-preventing photo-period during the moulting sleep is probably sufficient to prevent diapause. Diapause in D. oleracea is not influenced by photoperiodically controlled substances in the larval food plant.

scholarly journals Notas sobre el comportamiento y la migración de urania fulgens (lepidoptera: uraniidae) en Costa Rica

2008 ◽  
Vol 24 (1) ◽  
Author(s):  
Luis Ricardo Murillo-Hiller
Keyword(s):  
Costa Rica ◽  
National Park ◽  
Food Plant ◽  
Larval Food ◽  
Mass Migration ◽  
Migratory Population ◽  
Larval Food Plant

Observations on U. fulgens behavior were done in Costa Rica during a mass migration in 2005; notes on the behavior of a non-migratory population are also documented. Tapantí National Park seems to be a possible destiny for the migrating butterflies. A new possible larval food plant is recorded.

Annotated Checklist of the Pterophoridae (Lepidoptera) of Florida including Larval Food Plant Records

1990 ◽  
Vol 73 (4) ◽  
pp. 613 ◽  
Author(s):  
D. L. Matthews ◽  
D. H. Habeck ◽  
D. W. Hall
Keyword(s):  
Food Plant ◽  
Larval Food ◽  
Annotated Checklist ◽  
Larval Food Plant

Factors Determining Variation in Fecundity of the Light Brown Apple Moth, Epiphyas Postvittana (Walker) (Tortricidae).

1975 ◽  
Vol 23 (3) ◽  
pp. 439 ◽  
Author(s):  
W Danthanarayana
Keyword(s):  
Egg Laying ◽  
Food Plant ◽  
Pupal Weight ◽  
Low Density ◽  
Larval Food ◽  
Spring Generation ◽  
Nutritive Quality ◽  
Time Of Year ◽  
Larval Crowding ◽  
Larval Food Plant

The large variation in fecundity in E. postvittana was associated with temperature, larval food plant, time of year each food plant occurs, and low-density larval crowding through mutual interference. Under field conditions, moths from larvae fed on curled dock, apple, plantain, white clover and capeweed laid > 50% of their eggs by 5-7 days old and > 80% by 8-12 days old. Cool conditions produced heavier individuals which lived longer and laid more eggs over an extended laying period. The fecundity and size (pupal weight) were probably influenced by the larval food plant and the time of year of feeding, presumably through seasonal variations in nutritive quality. Low-density larval crowding, despite excess food, significantly reduced fecundity and pupal weight; it occurs under natural conditions of high population density. The combined effect of these factors was cyclic variations in fecundity and size; more fecund, heavier individuals occurred during the cool wet months (winter generation adults) and less fecund, lighter individuals during the warm dry months (summer generation adults); spring generation adults were generally intermediate. The fecundity of E. postvittana can be adequately predicted from the number of egg-laying days.

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