Complex mating behavior in Adelosgryllus rubricephalus (Orthoptera, Phalangopsidae, Grylloidea)

Abstract

ABSTRACT. We describe the mating behavior of Adelosgryllus rubricephalus Mesa & Zefa, 2004. In trials carried out in laboratory we verified the following mating sequence: (1) sexual recognition by antennation; (2) courtship with male turning his abdomen towards the female, performing mediolateral antennae vibration, jerking its body antero-posteriorly and stridulating intermittently, while receptive female drums on the male's abdomen tip, cerci and hind-tibia with her palpi or foretarsi; the male then stops and stays motionless for some seconds, extrudes the spermatophore and both restart the behavioral sequence described above; (3) copulation: male underneath female; with his tegmina inclined forward, and joins his genitalia to the female's to promote sperm transference ; the female steps off the male, occurring a brief end-to-end position; (4) postcopulation: without guarding behavior; male retains the spermatophore and eats it. We quantified elapsed time of each behavioral sequence and discussed its implications in the observed mating behavior.KEYWORDS. Insecta, Phalangopsidae, crickets, courtship, copulation. Mesa & Zefa, 2004. Em observações realizadas em laboratório verificamos a seguinte seqüência no comportamento de acasalamento: (1) reconhecimento sexual por antenação; (2) corte, em que o macho volta seu abdômen em direção à fêmea, vibra as antenas médio-lateralmente, treme o corpo ântero-posteriormente e estridula intermitentemente, enquanto a fêmea receptiva toca a ponta do abdômen, os cercos e os fêmures posteriores do macho, com seus palpos ou tarsos anteriores; o macho então fica imóvel por alguns segundos, expõe o espermatóforo e ambos retomam a seqüência comportamental descrita acima; (3) cópula: o macho coloca-se sob a fêmea, com suas tégminas inclinadas para frente, anexa sua genitália à dela e promove a transferência do esperma; a fêmea desce de cima do macho e ocorre brevemente a posição "end-to-end" durante a separação do casal; (4) pós-cópula: não há comportamento de guarda; o macho retém o espermatóforo e o ingere. Quantificamos o intervalo de tempo das principais etapas do acasalamento e discutimos suas possíveis implicações no comportamento observado. RESUMO. Comportamento Complexo de Acasalamento em Adelosgryllus rubricephalus (Orthoptera, Gryllidae). Descrevemos o comportamento reprodutivo de Adelosgryllus rubricephalus

Cryptic Female Choice in Crickets and Relatives (Orthoptera: Ensifera)

“…In many cricket species, especially those in which pairs routinely engage in repeated mating, males direct a variety of post-copulatory behaviours towards the female (reviewed in Alexander andOtte 1967, Brown andGwynne 1997;Vahed 1998 see also Preston-Mafham 2000; Andrade and Mason 2000;Sadowski et al 2002;Zefa et al 2008;de Carvalho and Shaw 2010;Prokop and Maxwell 2008;, which could be interpreted either as a form of copulatory courtship (Eberhard 1991(Eberhard , 1996 or as mate "harassment" (Hall et al 2008). The former implies intersexual cooperation, while the latter implies intersexual conflict.…”

Improving exploration in Ant Colony Optimisation with antennation

“…This behaviour can communicate a wide range of information: colony hunger levels [1], mating behaviour [19], nestmate recognition [20] and sexual identification [26]. It has been seen to be able to directly communicate data about the surrounding world between individuals.…”

Ethology of the cricket Endecous (Endecous) chape Souza-Dias & de Mello, 2017 (Orthoptera: Grylloidea: Phalangopsidae) I: Agonistic and reproductive behavior

“…During courtship, males communicate with females through stridulation (Alexander 1966, Zefa et al 2008, antennation (Prado 2006, Funk 2016, and body vibration (Bell 1980, Zefa et al 2008, Souza-Dias et al 2015. Copulation begins when a male inserts his spermatophore duct into the female copulatory papilla for sperm transfer (Alexander and Otte 1967).…”

“…Copulation begins when a male inserts his spermatophore duct into the female copulatory papilla for sperm transfer (Alexander and Otte 1967). Post-copulatory behavior includes ingestion of the spermatophore by males (Zefa et al 2008) or females Otte 1967, deCarvalho andShaw 2010), and male guarding to prevent the female from either removing the spermatophore or mating with other males (Alexander and Otte 1967, de Mello 2007. For oviposition, females select a suitable oviposition site (Evans 1983) using visual and olfactory cues (Huber et al 1989, Sugawara 1993.…”

“…Although the main points of Grylloidea agonistic and reproductive behavior have been extensively studied in the last decades (Alexander and Otte 1967, Bell 1980, Evans 1988, de Mello and dos Reis 1994, Prado 2006, Funk 2016, Lunichkin et al 2016, few Ethology of the cricket Endecous (Endecous) chape Souza-Dias & de Mello, 2017 (Orthoptera: Grylloidea: Phalangopsidae) I: Agonistic and reproductive behavior studies have focused on the family Phalangopsidae. To date, 10 of the 1005 species of Phalangopsidae have had their reproductive behavior described (Alexander and Otte 1967, Dambach and Lichtenstein 1978, Boake 1984, de Mello and dos Reis 1994, Nischk and Otte 2000, Gnaspini and Pelegatti-Franco 2002, Prado 2006, Zefa et al 2008, Souza-Dias et al 2015, Lunichkin et al 2016, and only three species have had their agonistic behavior studied (Boake 1984, de Mello and dos Reis 1994, Prado 2006). This diversity in the behavioral repertoire is likely to be expanded when other species have been studied, particularly since Phalangopsidae are widely distributed, occupying different strata of tropical and subtropical forests, litter, rock crevices, and caves (Desutter-Grandcolas 1995, Bolfarini and Bichuette 2015, Souza-Dias et al 2017, Cigliano et al 2018, and also have diverse morphological variation in structures related to reproduction (Prado 2006, de Mello 2007, Zefa et al 2008, Lunichkin et al 2016.…”