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Sex-Biased Size Variation in Velvet Ants (Hymenoptera: Mutillidae)

Mark Deyrup and Donald Manley
The Florida Entomologist
Vol. 69, No. 2 (Jun., 1986), pp. 327-335
DOI: 10.2307/3494937
Stable URL: http://www.jstor.org/stable/3494937
Page Count: 9
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Sex-Biased Size Variation in Velvet Ants (Hymenoptera: Mutillidae)
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Abstract

The relative sizes of male and female Mutillidae were studied at the Archbold Biological Station in south-central Florida. Females are larger than males in Dasymutilla pyrrhus (Fox), Pseudomethoca sanbornii aeetis (Fox), and P. oculata (Banks). Males are larger than females in Timulla d. dubitata (Smith), T. floridensis (Blake), Ephuta f. floridana Schuster, E. m. margueritae Schuster, E. s. slossonae (Fox), Dasymutilla archboldi Schmidt and Mickel, and Photomorphus paulus (Bradley). There is no significant difference in Dasymutilla asopus bexar (Blake), D. nigripes (Fabricius), and D. castor (Blake). Sex-biased size variation may be associated with courtship behavior or host-seeking behavior. /// Se estudió el tamaño relativo de machos y hembras de Mutillidae en la Estación Biológica de Archbold en el centro-sur de la Florida. Las hembras son más grande que los machos en Dasymutilla pirrhus (Fox), Pseudomethoca sanborinii aeetis (Fox), y P. oculata (Banks). Los machos son más grande que las hembras en Timulla d. dubitata (Smith), T. floridensis (Blake), Euphata f. floridana Schuster, E. m. margueritae Schuster, E. s. slossonae (Fox), Dasymutilla archboldi Schmidt y Mickel, y Photomorphus paulus (Bradley). No hay diferencia significante en Dasymutilla asopus bexar (Blake), D. nigripis (Fabricius), y D. castor (Blake). Variaciones de tamaño parciales al sexo pudieran estar asociadas con el comportamiento de cortejo o la búsqueda de hospedero.

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