You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Provisioning by Female Western Cicada Killer Wasps, Sphecius grandis (Hymenoptera: Sphecidae): Influence of Body Size and Emergence Time on Individual Provisioning Success
Journal of the Kansas Entomological Society
Vol. 59, No. 2 (Apr., 1986), pp. 262-268
Published by: Kansas (Central States) Entomological Society
Stable URL: http://www.jstor.org/stable/25084766
Page Count: 7
You can always find the topics here!Topics: Female animals, Cicadas, Body size, Animal nesting, Mating behavior, Entomology, Gender bias, Bird nesting, Body weight, Sex ratio
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
The ability of individual female Sphecius grandis to provide cicadas for their offspring is influenced by their body size and date of emergence. Females with a forewing length of 29-30 mm are more successful providers than smaller individuals. Females with a forewing length of less than 25 mm have virtually no provisioning success. Female wasps emerge over a 3-4 week period in July and August. Females emerging in midseason have the highest provisioning success possibly because they are active during peak prey abundance. A slight male bias in the cicada provisions was observed. Though female cicadas contain more consumable tissue than male cicadas, males are apparently easier to locate and are therefore more frequently captured.
Journal of the Kansas Entomological Society © 1986 Kansas (Central States) Entomological Society