Biology and Hybridization of Apantesis phalerata and A. radians (Lepidoptera: Arctiidae)1
| Autor: | D. H. Habeck, J. S. Bacheler |
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| Rok vydání: | 1974 |
| Předmět: | |
| Zdroj: | Annals of the Entomological Society of America. 67:971-975 |
| ISSN: | 1938-2901 0013-8746 |
| DOI: | 10.1093/aesa/67.6.971 |
| Popis: | Life histories of A. phalerata (Harris), A. radians Walker, and hybrid (A. radians male X A. phalerata female), reared on an artificial diet at 23°C, were nearly identical. The duration of the immature stage was longer for hybrid females than males, apparently due to at least 1 extra female instar. In laboratory studies involving 57 A. phalerata and 20 A. radians pairings, 58% and 70% successful matings occurred, respectively. Fifty-six hybrid pairings of A. radians males and A. phalerata females resulted in 25% successful matings, but all 32 pairings of A. phalerata males X A. radians females were unsuccessful. Caged A. phalerata and A. radians virgin females attracted only males of their own species in nature. Two caged, virgin hybrid females attracted both species, while the remaining 15 hybrid females attracted only radians . During a 2-year period, male and female A. phalerata attracted to ultraviolet traps outnumbered A. radians by 7:1 and 3.5:1, respectively. Nine percent of wild A. phalerata females and no A. radians were unmated. The remaining females of both species mated 1, 2, or 3 times. The sex ratios of blacklight-collected males to females were about 55:1 and 29:1 for A. phalerata and A. radians , respectively. |
| Databáze: | OpenAIRE |
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