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ANALYSE DES CAUSES DE L'INHIBITION DE LA RECEPTIVITE SEXUELLE ET DE L'INFLUENCE D'UNE EVENTUELLE SECONDE COPULATION SUR LA REPRODUCTION CHEZ LA TEIGNE DU POIREAU, ACROLEPIA ASSECTELLA (LEPIDOPTERA: PLUTELLIDAE)
Author(s) -
THIBOUT E.
Publication year - 1975
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1975.tb00391.x
Subject(s) - spermatheca , spermatophore , biology , lepidoptera genitalia , mating , humanities , gynecology , sperm , zoology , ecology , botany , art , medicine
Placées quotidiennement avec un nouveau mâle, seules certaines femelles déjà fécondées, notamment les plus vieilles acceptent une deuxième copulation. Les séquences comporte‐mentales sont alors tout à fait normales. L'examen de la bourse copulatrice et de la spermathèque montre que ce sont les femelles qui ont les bourses les moins distendues ou les spermathèques les moins pleines qui copulent à nouveau. La ponte et la production ovarienne ne sont pas stimulées par un deuxième accouplement, celui‐ci n'étant généralement pas suivi de la migration des spermatozoïdes. Summary CAUSAL ANALYSIS OF THE INHIBITION OF SEXUAL RECEPTIVITY AND OF THE INFLUENCE OF A SECOND COPULATION ON THE REPRODUCTION BY ACROLEPIA ASSECTELLA (LEPIDOPTERA, PLUTELLIDAE) Placed one night with two males, only some females mate two times, especially females with a first interrupted or incomplete mating. The short‐term inhibition of female receptivity is provoked by filling of the bursa because the sperm reaches the spermatheca only a few hours after the end of the first mating. Mating of one male with two different females on 2 consecutive days results in the production of two different spermatophores; inseminated females with little spermatophores remate more frequently when placed with a new male. At long term, study of the bursa, the volume of which depends upon that of the spermatophore, and of the spermatheca, shows that females with little secretion in the bursa or with few spermatozoa in the spermatheca are those which mate two times. As there is a relation between longevity of females and the age at which they remate, deinhibition of receptivity is provoked by female senescence and by heterogeneity of male reproductive power. Egg‐laying and oögenesis are not stimulated by a second mating. Generally this second mating is not followed by migration of the spermatozoa.