Why Do Male Tree Weta Aggressively Evict Females from Galleries After Mating?
The sexually dimorphic Wellington tree weta (Hemideina crassidens Blanchard) (Orthoptera: Anostostomatidae) is a harem-defending polygynous insect in which males use their enormous mandibles to fight conspecifics for access to harems residing in tree cavities (gallery). Tree weta ejaculates (spermatophores) do not include a nuptial meal (spermatophylax) to delay removal by females as in some ensiferan Orthoptera. Consequently, male tree weta are predicted to remain with their mates post-copula...[Show more]
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