Canadian Forest Service Publications

Female coyness and receptivity during courtship in Plodia interpunctella (Lepidoptera: pyralidae) 1976. Grant, G.G. The Canadian Entomologist 108: 975 - 979.

Year: 1976

Issued by: Great Lakes Forestry Centre

Catalog ID: 31297

Language: English

Availability: PDF (request by e-mail)

Mark record


Trw receptivity of scxuallj mature Plmlia inierpum-iella females during courtship was quantitatively analyzed. When mates approached from ihe rear, two thirds of ihe females moved awaj from them nn ihe firsi courtship encounter so thai onlj 221 of these encounters led lo copulation. In second encounters from Ihe rear, however. Ht>'t of Ihe females turned and accepted Ihe males, and 40r; of ihem copulated. When the males approached head-on there was ni) observable difference in female rccepllveness between first ,md second encounters: in each ease over 'JO'S of the females accepted the males .ind at least 5S1; of them copulated. Since liie acceptance of (lie male b\ Ihe female is ilependeni >m her perception of a male sex pheromone released h> scenl glands tin his foreviings, she can probahlj idcniifj the male Immediately in head-on encounters hut requires additional time or stimulation to do so in rear encounters.