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Structural Features of Female Genitalia in Some Species of Histerid Beetles (Coleoptera, Histeridae)
AbstractThe ovipositor morphology in 12 species of Histeridae is considered, including the previously undescribed structures of the gonocoxites,...
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Mating behavior and functional morphology of genitalia in longhorn beetle Dorysthenes granulosus (Coleoptera: Cerambycidae: Prioninae)
Sexual selection is a driving force behind the evolution of insect genitalia morphology. Understanding the functional morphologies of mating-related...
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First 3-D reconstruction of copulation in Lepidoptera: interaction of genitalia in Tortrix viridana (Tortricidae)
BackgroundThe process of copulation in Lepidoptera is understudied and poorly understood from a functional perspective. The purpose of the present...
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Sexual selection on a female copulatory device in an insect with nuptial gifts
AbstractMale genitalia are rapidly evolving structures, often driven by sexual selection to increase fertilisation success. Although sexual selection...
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Is the copulation of silver-washed fritillary inverted? Function of the female genital projection (Lepidoptera: Nymphalidae: Argynnini)
Females of the silver-washed fritillary butterfly, Argynnis paphia (Linnaeus), and its relatives are known to have a unique genital projection called...
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Are males just passive? Coupling mechanism of the Brazilian cave insects with inverted genitalia
Species of the Brazilian cave barklouse genus Neotrogla (Psocodea: “Psocoptera”: Trogiomorpha: Prionoglarididae: Sensitibillini) are known to have a...
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Sexual Anatomy of Female Cetaceans: Art and Science Contribute Insights into Functionality
The relationship between sexual selection and the diversity and rapid evolution of male genitalia has been well-documented across many animal taxa,...
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Comparative transcriptome analysis identifies crucial candidate genes and pathways in the hypothalamic-pituitary-gonadal axis during external genitalia development of male geese
BackgroundAll birds reproduce via internal fertilization, but only ~3% of male birds possess the external genitalia that allows for intromission....
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Interspecific variability of the external female genital mutilation rate and its relationship with female aggression and sexual cannibalism in Cyclosa spiders
External female genital mutilation (EFGM) is the strategy employed by male spiders to ensure paternity during sexual conflict over female remating....
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Evolutionary changes in gene expression profiles associated with the coevolution of male and female genital parts among closely related ground beetle species
BackgroundThe coevolutionary dynamics of corresponding male and female sexual traits, including genitalia, may be driven by complex genetic...
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Immature Stages, Description of Female, and Redescription of Male of Apatelodes kotzschi Draudt, 1929 (Lepidoptera: Bombycoidea: Apatelodidae)
The genus Apatelodes Packard, 1864 comprise more than half of the known Apatelodidae species, but most of its species are placed in the genus without...
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Trichomes on female reproductive tract: rapid diversification and underlying gene regulatory network in Drosophila suzukii and its related species
BackgroundThe ovipositors of some insects are external female genitalia, which have their primary function to deliver eggs. Drosophila suzukii and...
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Female aging: when translational models don’t translate
For many pathologies associated with aging, female patients present with higher morbidity and more frequent adverse events from treatments compared...
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Social Behaviors of Nulliparous Adolescent Female Bonobos
Although male-biased transfer is more prevalent among group-living mammals (Greenwood 1980; Pusey and Packer 1987), female-biased transfer exists in...
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The internal female genitalia of Aulacigaster (Diptera: Aulacigastridae)—description and phylogenetic analysis
The internal female genitalia of 22 species of Aulacigaster are studied, covering all species groups as defined by Rung and Mathis (Smithson....
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Material heterogeneity of male genitalia reduces genital damage in a bushcricket during sperm removal behaviour
Sperm removal behaviour (SRB) is known in many animals, and male genital structures are often involved in the SRB, e.g. rubbing female genitalia...
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Reproduction
The evolution of gonads and genitalia of major shrimp taxa has resulted in major differences between the pleocyemates (carideans, stenopodideans,...
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Pre-copulatory choices drive post-copulatory decisions: mechanisms of female control shift across different life stages
BackgroundThe ‘wallflower’ hypothesis proposes females mate indiscriminately to avoid reproductive delays. Post-copulatory mechanisms may then allow...
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Testing presence of directionality information in female spider silk trails through male trail-following behavior
AbstractMate search is challenging for solitary species. Trails represent a particularly potent, target-oriented means for finding mates, as...
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Non-mosaic X monosomy (77,X) in a female dog with signs of virilization
A 14-month-old female Miniature Poodle dog with an enlarged clitoris and asymmetry in the placement of the teats was subjected to clinical,...
