Reproductive biology and function of multiple mating in the mating system of a tree cricket,Truljalia hibinonis (Orthoptera: Podoscritinae)

Ono, Tomohiro; Hayakawa, Fusako; Matsuura, Yuichirou; Shiraishi, Masako; Yasui, Hikari; Nakamura, Tami; Arakawa, Mamoru

doi:10.1007/bf02009508

Cited by 13 publications

(11 citation statements)

References 19 publications

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“…The female may eat the microspermatophore, and then palpate liquid secretions on the dorsal surface of the male’s right forewing (tegmen), which overlaps and covers the left forewing when the male is not stridulating. This behavior is similar to female palpations of male metanotal secretions in other gryllids (e.g., Ono et al. 1995; Brown 1997; reviewed in Gwynne 1997).…”

Section: Introductionsupporting

confidence: 69%

Interactions Between Multiple Forms of Nuptial Feeding in the Wood Cricket Nemobius sylvestris (Bosc): Dual Spermatophores and Male Forewings

Prokop

Maxwell

2008

Ethology

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Nuptial feeding is widespread in insects, with many species showing one form of feeding. In the wood cricket Nemobius sylvestris, the male may provide multiple forms of feeding during an encounter: two kinds of edible spermatophores (microspermatophore and macrospermatophore) and forewing secretions. We examined the roles and interactions of the spermatophores and forewing exposure in the mating sequence of this species. The small microspermatophore was not found to contain sperm, whereas the larger macrospermatophore contained sperm. In mating trials, the microspermatophore may be transferred to the female early in the trial. Transfer of the microspermatophore was not a necessary prerequisite to the subsequent transfer of one or more sperm‐filled macrospermatophores. Forewing exposure increased male mating success, as males with exposed forewings were more successful in transferring the macrospermatophore than males with experimentally covered forewings, both in terms of occurrence of successful transfer and the number of macrospermatophores transferred. Male mating success was very low when the male’s forewings were covered and when the male did not transfer a microspermatophore. The sperm‐filled macrospermatophore may have nutritional value, as females eventually consumed all transferred macrospermatophores, and males consumed all rejected macrospermatophores. Somewhat unexpectedly, this study casts doubt on the role of the forewings in nuptial feeding. Although males with exposed forewings were more successful in macrospermatophore transfer, females actually palpated these males’ forewings less. We posit the alternative hypothesis that the forewing secretions play a role in chemical communication to the female (e.g., signaling male quality), possibly instead of female nourishment.

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Section: Introductionsupporting

confidence: 69%

Interactions Between Multiple Forms of Nuptial Feeding in the Wood Cricket Nemobius sylvestris (Bosc): Dual Spermatophores and Male Forewings

Prokop

Maxwell

2008

Ethology

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“…2001; Wynn & Vahed 2004). Similarly, in Truljalia hibinonis (a species with glandular nuptial gifts), the female remains in copulation for longer on her first mating than on her second (Ono et al. 1995).…”

Section: Does Nuptial Feeding Lead To Sexual Conflict or Sexual Concumentioning

confidence: 99%

All that Glisters is not Gold: Sensory Bias, Sexual Conflict and Nuptial Feeding in Insects and Spiders

2007

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It is becoming increasingly clear that the evolutionary interests of the sexes are often in conflict when it comes to mating. Sexual encounters involving nuptial gifts, however, have often been viewed as prime examples of sexual co-operation, rather than conflict. In this review, I explore the proposition that nuptial gifts act as sensory traps: by exploiting the female's gustatory responses, the male may be able to entice females to accept superfluous matings and/or transfer greater volumes of ejaculate than are in the female's reproductive interests. Evidence suggests that the females' sensory biases may have played an important role in shaping gift characteristics in at least four different systems, although relatively few forms of nuptial feeding have so far been examined from this perspective. I argue that gift composition is more likely to be tailored to increasing the attractiveness of the gift to the female and/or maximizing gift handling time than to suit the female's nutritional needs and that the fecundity-enhancing benefits of nuptial gifts are often questionable and have been over-stated in the literature. Fertilization biases associated with the female's attraction to the nuptial gift, however, could lead to in-direct benefits for the female. On the other hand, nuptial feeding may also lead to significant costs to the female. Evidence suggests that some types of gift entice the female to mate, but it is not clear whether the resultant degree of polyandry is higher than optimal for the female. In other cases, evidence suggests that the gift enables the male to overcome the resistance of the female to accepting an extra large ejaculate and that large ejaculates are associated with longer post-mating sexual refractory periods in the female. This could represent a cost to the female by delaying or preventing her from receiving the genetic benefits of polyandry. At present, it is not clear, however, whether such costs outweigh the potential benefits of nuptial feeding for the female

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“…The presence of this gland has been occasionally reported by several authors while observing the mating behavior of certain species (LEROY, 1964;WALKER & GURNEY, 1967;ONO et al, 1995;MELLO & JACOMINI, 1995). WALKER & GURNEY (1967) discussed the use of this gland as a taxonomical character for the genus Oecanthus Audinet-Serville, 1831 (Gryllidae); they proposed an identification key based on this structure for species that inhabit the United States of America.…”

Section: Introductionmentioning

confidence: 67%

“…The reports of this gland in scientific literature do not clarify its morphology or the nature of its secretion. Most of the reports on this gland originates from behavioral analyses made in some groups (WALKER, 1963;LEROY, 1964;ONO et al, 1995;MELLO & JACOMINI, 1995).…”

Section: Discussionmentioning

confidence: 99%

Metanotal gland of the genus Eidmanacris (Grylloidea, Phalangopsidae): taxonomic importance

Prado

Fontanetti

2005

Iheringia, Sér. Zool.

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ABSTRACT. The present study compares the metanotal gland through scanning electron microscopy in five species of Eidmanacris: E. corumbatai Garcia, 1998, E. alboannulata (Piza, 1960, E. dissimilis Desutter-Grandcolas, 1995, E. larvaeformis (Chopard, 1938 and Eidmanacris sp. The general external configuration of the gland was determined by the presence of two median projections with apical opening and a cluster of bristles just above these projections. Although there is a general pattern for this gland, each species has its own pattern, which can be defined mainly by the arrangement of the bristles and the position of the median projections. Our results suggest the taxonomical importance of these structures, which should be better analyzed when describing species of the genus Eidmanacris. In addition, while observing the reproductive behavior of these species, we concluded that the release of this gland secretion is important for the success of mating. KEYWORDS.Mating, cricket, metanotal gland, reproductive behavior.The genus Eidmanacris Chopard, 1956 comprises 12 species that are distributed at tropical latitudes of South America. The habitat of this genus is defined as straminicolous (forage in a leaf letter) and cavicolous (takes refuge in natural cavities), and they can be found mainly in subtropical forest (DESUTTER-GRANDCOLAS, 1995).According to MESA et al. (1998), the different species can be easily recognized according to the characters of the male genitalia, but they are difficult to identify through the female features.In a proposal for a species-identification key, DESUTTER-GRANDCOLAS (1995) used, among several other characters, the presence and absence of metanotal gland. The presence of this gland has been occasionally reported by several authors while observing the mating behavior of certain species (LEROY, 1964;WALKER & GURNEY, 1967;ONO et al., 1995;MELLO & JACOMINI, 1995). WALKER & GURNEY (1967) discussed the use of this gland as a taxonomical character for the genus Oecanthus Audinet-Serville, 1831 (Gryllidae); they proposed an identification key based on this structure for species that inhabit the United States of America. This gland is also known as Hancock's gland and is only present in the males of certain families. LOPES-ANDRADE & SPERBER (2001) observed this gland in preserved specimens of the genus Vanzoniella Mello e Reis, 1994 under scanning electron microscopy.Several functions have been proposed for this gland. Since the female of some species removes the spermatophore as soon as she leaves the male, the secretion of this gland is probably important for the success in the transference of the spermatophore, entertaining the female while the sperm passes from the spermatophore to the receptacle. In this way, during copulation, the male exposes the gland by elevating the tegmen and the female climbs on the male feeding on the secretion. Another function of the gland would be to maintain the union of the couple until another spermatophore can be passed. It has also been attributed to this ...

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Reproductive biology and function of multiple mating in the mating system of a tree cricket,Truljalia hibinonis (Orthoptera: Podoscritinae)

Cited by 13 publications

References 19 publications

Interactions Between Multiple Forms of Nuptial Feeding in the Wood Cricket Nemobius sylvestris (Bosc): Dual Spermatophores and Male Forewings

Interactions Between Multiple Forms of Nuptial Feeding in the Wood Cricket Nemobius sylvestris (Bosc): Dual Spermatophores and Male Forewings

All that Glisters is not Gold: Sensory Bias, Sexual Conflict and Nuptial Feeding in Insects and Spiders

Metanotal gland of the genus Eidmanacris (Grylloidea, Phalangopsidae): taxonomic importance

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