Authors: KARANDINOS, M. G.; AXTELL, R. C.

Source: Annals of the Entomological Society of America, Volume 67, Number 4, 15 July 1974 , pp. 669-677(9)

Publisher: Entomological Society of America

Abstract:

The mean number of eggs laid per female in cohorts of Hippelates pusio Loew, H. bishoppi Sabrosky, and H. pallipes (Loew) were 120.9, 76.7, and 59.8, respectively. Insects of the 3 species deprived of proteinaceous diet 7 h after their emergence and given only 10% sucrose solution laid only 16.7, 16.8, and 15.9 eggs per female, respectively. Shorter adult life spans and lower daily rates of egg laying contributed to the observed reduction.

The daily oviposition rate increased rapidly during the first 5-7 days of cohort's age and declined gradually afterwards. Gamma distribution functions described the data. This common type of oviposition trend was shown to be an artifact of pooling the records from different females having large variance in preovipositional time.

Individual records from 45 pairs of H. pusio revealed oviposition occurred in distinct gonotrophic cycles. The mean number of eggs per live female declined exponentially with the physiological age of females. The mean number of gonotrophic cycles per female was 9.93, with a mean gonotrophic cycle length of 3.23 days. An indirect probabilistic method was developed for estimating the duration of the oviposition phase of a gonotrophic cycle. The greater the number of eggs per batch, the longer the oviposition phase, with an asymptote of approximately 11 h.

Document Type: Research article

Publication date: 1974-07-15

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• Annals of the Entomological Society of America is published in January, March, May, July, September, and November. Annals especially invites submission of manuscripts that integrate different areas of insect biology, and address issues that are likely to be of broad relevance to entomologists. Articles also report on basic aspects of the biology of arthropods, divided into categories by subject matter: systematics; ecology and population biology; arthropod biology; arthropods in relation to plant diseases; conservation biology and biodiversity; physiology, biochemistry, and toxicology; morphology, histology, and fine structure; genetics; and behavior.
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