Parameters of reproductive activity in females of Harmonia axyridis (Coleoptera: Coccinellidae)

The effects of temperatures of 15, 20, 25 and 30°C on the duration of premating and preoviposition periods of Harmonia axyridis reared on the aphid Aphis fabae, were compared in the laboratory. The course of oviposition was monitored at 25°C in females reared on Aphis fabae and the peak of egg layin...

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Bibliographic Details
Published inEuropean journal of entomology Vol. 98; no. 4; pp. 547 - 549
Main Authors George J. STATHAS, Panagiotis A. ELIOPOULOS, Dimitrios C. KONTODIMAS, John GIANNOPAPAS
Format Journal Article
LanguageEnglish
Published Institute of Entomology, Biology Centre, Czech Academy of Science 01.01.2001
Subjects
aphis fabae
batch size
coccinellidae
fecundity
harmonia axyridis
mating
number of ovarioles
reproductive activity
temperature
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Summary:The effects of temperatures of 15, 20, 25 and 30°C on the duration of premating and preoviposition periods of Harmonia axyridis reared on the aphid Aphis fabae, were compared in the laboratory. The course of oviposition was monitored at 25°C in females reared on Aphis fabae and the peak of egg laying was recorded at the age of 15 to 45 days. The size of egg groups (batch size), as well as daily and total fecundity was recorded. Half of the total number of eggs was laid in batches of 10-30 eggs. The mean daily and total fecundity reached a maximum of 42 and 1,641.6 eggs, respectively. Adult females oviposited for almost their entire life.
ISSN:1210-5759
1802-8829
DOI:10.14411/eje.2001.069