ORIENTATION AND DISPERSAL OF LATE-STAGE LARVAE OF PORTHETRIA DISPAR (LEPIDOPTERA: LYMANTRIIDAE)
- 1 December 1975
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 107 (12) , 1333-1338
- https://doi.org/10.4039/ent1071333-12
Abstract
Late-stage gypsy moth larvae, Porthetria dispar (L.), orient by polarized light in woodland openings. Activity of larvae was greatest before 1030 h and after 1400 h Eastern Standard Time, when plane-polarized sky-light was stronger and ground surface temperatures more moderate than during midday. Larvae in the opening were attracted to vertical objects up to 3 m distant at cardinal points closest to their path of orientation but much less to the cardinal points furthest away. Most larvae move in a north to northeast or south to southwest direction at abroad angle to the direction of the sun’s rays.Keywords
This publication has 5 references indexed in Scilit:
- Air-Borne Dispersal of Larvae of the Gypsy Moth1 and Its Influence on Concepts of ControlJournal of Economic Entomology, 1971
- Changes in Egg Mass Density, Size, and Amount of Parasitism After Chemical Treatment of a Heavy Population of the Gypsy MothJournal of Economic Entomology, 1968
- Solar Heat and Plane Polarized Light versus the Light Compass Reaction in the Orientation of Insects on the Ground1Annals of the Entomological Society of America, 1955
- The Light Reactions of Larvae of the Tent Caterpillars, Malacosoma disstria Hbn., M. americanum (Fab.), and M. pluviale (Dyar). (Lepidoptera: Lasiocampidae)The Canadian Entomologist, 1953
- POLARIZED LIGHT AND BODY TEMPERATURE LEVEL AS ORIENTATION FACTORS IN THE LIGHT REACTIONS OF SOME HYMENOPTEROUS AND LEPIDOPTEROUS LARVAECanadian Journal of Zoology, 1951