Brood guarding behavior and life history characteristics of Goniozus indicus Ashmead (Hymenoptera: Bethylidae), a larval ectoparasitoid of lepidopteran stemborers

Keiji Takasu, William A. Overholt

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Brood guarding behavior and life history characteristics of Goniozus indicus Ashmead (Hymenoptera: Bethylidae) were examined in the laboratory. Longevity was increased when females were provided host frass, and females reared in association with hosts lived longer than females maintained separately from hosts. Females that were allowed free access to hosts oviposited at intervals of one to eight days and never parasitized more than one host per day. Females laid 5-25 eggs per host, and life time fecundity was 15-52 eggs at 25°C, 7-60 eggs at 28°C, and 5-25 eggs at 31°C. Females exhibited egg guarding behavior, remaining with the hosts after parasitization. Although the guarding period varied, the majority of females left the host before or during eclosion of their eggs. Considered together with the difficulty of finding and successfully parasitizing suitable hosts, brood guarding behavior appears to increase reproductive success of G. indicus.

Original languageEnglish
Pages (from-to)121-126
Number of pages6
JournalApplied Entomology and Zoology
Volume33
Issue number1
DOIs
Publication statusPublished - Jan 1 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Insect Science

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