Don’t touch me! Mating not always preceded by courtship behavior in predatory coccinellids DOI
Valeria Zeni, Renato Ricciardi,

Marta Valicenti

et al.

Journal of Economic Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Knowledge of the ecology and behavior biological control agents is essential for their effective use in biocontrol Integrated Pest Management (IPM) programs. There a lack information regarding courtship mating traits that are crucial successful population coccinellids. To expand our current understanding this area, 2 coccinellid species commonly used soft-bodied insects, Cryptolaemus montrouzieri (Mulsant) Propylea quatuordecimpunctata (Linnaeus) (Coleoptera: Coccinellidae), were studied. A quantitative analysis was performed to compare displays. Key behavioral precopulatory, copulatory, postcopulatory phases investigated. The sequences C. P. similar each other. During phase, key displays opening elytrae wings followed by body shaking leg tapping quatuordecimpunctata. success both not correlated with any display, such as antennal tapping. Only mounting attempt showed higher frequency from backside without affecting male success. This research adds baseline knowledge about coccinellids, contributing identification potentially useful benchmarks (e.g., shaking, tapping) monitoring prolonged mass-rearing processes, thus reducing failures.

Language: Английский

More eggs are not more sires: long-term monogamy reduces fertility in a predatory ladybird DOI
Gabriela Streppel Steindorff, Wendel José Teles Pontes

Bulletin of Entomological Research, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 8

Published: Jan. 8, 2025

Abstract Multiple mating is a behaviour observed across various polyandrous insect species. It suggested that, in ladybirds, this strategy of multiple copulations used to enhance fecundity and fertility through sperm replenishment. Studies on depletion need correlate with the presence spermatozoa spermatheca. This study investigates role replenishment ladybird Cryptolaemus montrouzieri . We hypothesised that females species exhibit rates proportional number opportunities (constant, periodic or absent). oviposition hatching over 30 days, simultaneously tested for copulated once. dissected spermathecae at four post-copulation moments count under microscope. Our results indicate single copulation suffices maintain least days. Females constant exhibited higher but lower increased mortality, suggesting reproductive cost associated frequent mating. no during experiment, highest hatchability rate lowest oviposition. Periodic resulted optimal female rate, average fecundity. A plausible hypothesis would be paired choose fertilise fewer eggs from male are unable control effects stimulus induced by male's presence. These findings have implications management rearing C. biological programmes, optimizing strategies mass production.

Language: Английский

Citations

0
Study on mate choice in animals DOI Creative Commons
Zhongyuan Shen,

Xixi Liu,

Kaikun Luo

et al.

Reproduction and Breeding, Journal Year: 2024, Volume and Issue: 4(3), P. 120 - 125

Published: May 1, 2024

Language: Английский

Citations

1
Anatomy of male and female genitalia of Acanthoscelides obtectus (Say, 1831) (Coleoptera, Chrysomelidae, Bruchinae) in interaction DOI Creative Commons
Michael Schmitt,

Aileen Neumann,

Shou‐Wang Lin

et al.

ZooKeys, Journal Year: 2023, Volume and Issue: 1177, P. 75 - 85

Published: Aug. 30, 2023

Armatures of the male intromittent copulatory structures have been surmised to increase fitness by imposing physiological costs on female re-mating. Female kicking could, consequently, be a counterstrategy avoid wounding or prevent males from mating. The membranous endophallus Acanthoscelides obtectus (Say, 1831) is armed with denticles. Checking if these denticles penetrate wall genital tract during copulation revealed that only tip median lobe aedeagus intromitted into opening copulation. everted extends over full length ovipositor, and spermatophore placed in bursa. Identification means light microscopy Micro-CT exact relative position organs while mated confirmed do not cause wounds vagina wall. Parts inner bursa copulatrix are covered inward pointing Already females kick mounting vehement movements their hind legs, thereby preventing In contrast, virgin usually accept first they encounter terminate slower legs. same applied who accepted re-mating second day after off rather than Copulatory as well behaviour may different functional roles beetle species, even within Bruchinae.

Language: Английский

Citations

1
Don’t touch me! Mating not always preceded by courtship behavior in predatory coccinellids DOI
Valeria Zeni, Renato Ricciardi,

Marta Valicenti

et al.

Journal of Economic Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Knowledge of the ecology and behavior biological control agents is essential for their effective use in biocontrol Integrated Pest Management (IPM) programs. There a lack information regarding courtship mating traits that are crucial successful population coccinellids. To expand our current understanding this area, 2 coccinellid species commonly used soft-bodied insects, Cryptolaemus montrouzieri (Mulsant) Propylea quatuordecimpunctata (Linnaeus) (Coleoptera: Coccinellidae), were studied. A quantitative analysis was performed to compare displays. Key behavioral precopulatory, copulatory, postcopulatory phases investigated. The sequences C. P. similar each other. During phase, key displays opening elytrae wings followed by body shaking leg tapping quatuordecimpunctata. success both not correlated with any display, such as antennal tapping. Only mounting attempt showed higher frequency from backside without affecting male success. This research adds baseline knowledge about coccinellids, contributing identification potentially useful benchmarks (e.g., shaking, tapping) monitoring prolonged mass-rearing processes, thus reducing failures.

Language: Английский

Citations

0