02447nas a2200265 4500008004100000245016200041210006900203300001200272490000700284520147300291653001901764653001301783653001401796653002001810653003101830100001901861700003601880700003201916700001801948700003201966700002001998700001702018700002302035856012302058 2018 eng d00aEthology of the cricket Endecous (Endecous) chape Souza-Dias & de Mello, 2017 (Orthoptera: Grylloidea: Phalangopsidae) I: Agonistic and reproductive behavior0 aEthology of the cricket Endecous Endecous chape SouzaDias de Mel a193-2010 v273 a

The mating behaviors of crickets, especially those related to agonistic encounters and oviposition, are poorly known. For example, only 10 of the 1005 valid species of Phalangopsidae have been studied to some extent. Here, we describe the reproductive behavior of Endecous (Endecous) chape, characterizing the actions involved in agonistic encounters, mating behaviors (female attraction, pair-formation, courtship, mating, and post-copulatory behavior), and oviposition. We recorded and timed agonistic, mating, and oviposition behaviors in staged trials. The male-male interactions of E.chape ranged in aggressiveness from low intensity (only antennal interaction) to high intensity (reciprocal fights). In the mating behavior, males courted females through antennation of the females’ abdomen and cerci, followed by production of acoustic signals (with the exception of two males). Copulation occurred with females positioned above males (as is typical of Phalangopsidae), with an average elapsed time of 684.13 s, which is shorter than in other Phalangopsidae. We observed oviposition behavior only when three gravid females were placed together in an arena. Here, we contribute new knowledge of phalangopsid cricket behavior and provide useful information for understanding the evolution of reproductive behaviors. New characters described here can be used in phylogenetic analysis and for future studies about sexual selection and natural history.

10aaggressiveness10aethology10aLuzarinae10amating behavior10aParque Nacional do Iguaçu1 aFianco, Marcos1 ade Souza-Dias, Pedro, Guilherme1 ade Farias-Martins, Fernando1 aMagro, Suzana1 aPrasniewski, Victor, Mateus1 aRicci, Jéssica1 aZefa, Edison1 aSzinwelski, Neucir uhttps://bio.acousti.ca/content/ethology-cricket-endecous-endecous-chape-souza-dias-de-mello-2017-orthoptera-grylloidea03049nas a2200241 4500008004100000245011800041210006900159300001400228490000600242520224000248653001602488653001502504653002402519653001202543653002002555653001802575653001702593653002002610653001202630653001902642100002102661856012502682 1981 eng d00aMale spacing and the influence of female courtship behaviour in the bladder cicada, Cystosoma saundersii Westwood0 aMale spacing and the influence of female courtship behaviour in  a269–2760 v93 a

1. Experimental choruses of males of Cystosoma saundersii with manipulated densities -12 times that usually found in bushes of the same size were set up and compared with choruses with natural densities of males. Greater numbers of both males and females were attracted to the louder, denser choruses.

2. There were higher rates of dispersal away from and movements within the experimental choruses than those found at natural densities. This indicated some form of repulsion occurring between males in close proximity.

3. Playback experiments to calling males in the field showed that males would stop singing and move away in response to high intensities of a conspecific calling song. The intensities eliciting this reaction cor- responded to a conspecific male singing at separations of less than or equal to 0.5 m. Aggression between males or aggressive songs have not been observed.

4. Females fly in to the chorus and alight generally within 0.5 m of the male of their choice. They then produce a pheromone which they disperse by wing-flicking. The rate of wing-flicking was used as a quan- titative measure of the willingness of a female to mate.

5. Twice as many females were attracted to higher densities of males than to natural densities. However, in the experimental situation, the probability of an attracted female actually mating was half that occur- ring in natural densities. This appeared to be due to an inhibition of the female wing-flicking behaviour.

6. Playback experiments showed that females will respond by wing-flicking to a male only when his song is at least 9 dB louder than that of his nearest neighbour (when the sound pressure levels of the sources are measured separately at the position of the female). Using this figure as a threshold, volumes in which females would respond were calculated for males with a series of nearest-neighbour distances. At the average separation found between males sharing bushes in the field, the volume in which a female would respond covered most of the volume in which a female is likely to land. Thus, the discriminating capabilities of the female were shown to govern the minimum separation occurring between males.

10aAggregation10aamphibians10aanimal vocalization10aCicadas10aInsect behavior10aInsect sounds10aLoudspeakers10amating behavior10aSinging10aSound pressure1 aDoolan, Jane, M. uhttps://bio.acousti.ca/content/male-spacing-and-influence-female-courtship-behaviour-bladder-cicada-cystosoma-saundersii01458nas a2200289 4500008004100000022001300041245017000054210006900224260001600293300001200309490000800321520053900329653001400868653001900882653001200901653002000913653001400933653001600947653001500963653002100978100002600999700001901025700002101044700001701065700002001082856006601102 2015 eng d a0044523100aGnominthus gen. nov., a new genus of crickets endemic to Papua New Guinea with novel acoustic and behavioral diversity (Insecta, Orthoptera, Gryllidae, Eneopterinae)0 aGnominthus gen nov a new genus of crickets endemic to Papua New  cJan-09-2015 a82 - 910 v2583 a

The present study describes Gnominthus, a new genus of Eneopterinae crickets from New Guinea Island (Papua New Guinea), which belongs to the tribe Lebinthini. Descriptions focus on general morphology, male and female genitalia, and forewing venation. Bioacoustical analyses of the calling song and the description of the mating behavior are also provided. The novelties found here increase the idea hypothesized before that the Lebinthini may represent a very diverse group in terms of shapes, behaviors and acoustic signals.

10aGryllidae10ahigh frequency10aInsecta10amating behavior10anew genus10anew species10aOrthoptera10aPapua New Guinea1 aVicente, Natallia, M.1 aOlivero, Paola1 aLafond, Augustin1 aDong, Jiajia1 aRobillard, Tony uhttp://linkinghub.elsevier.com/retrieve/pii/S004452311530002402265nas a2200169 4500008004100000245015200041210006900193300001200262490000700274520167200281653001801953653001501971653002001986653002402006100002302030856004202053 2004 eng d00aReproductive Behavior of Ground Weta (Orthoptera: Anostostomatidae): Drumming Behavior, Nuptial Feeding, Post-copulatory Guarding and Maternal Care0 aReproductive Behavior of Ground Weta Orthoptera Anostostomatidae a414-4280 v773 a

Compared to other ensiferan Orthoptera such as true crickets (Gryllidae) and katydids (Tettigoniidae) relatively little is known about the reproductive behavior of Anostostomatidae (formerly Stenopelmatidae), the king crickets, weta and allies. Moreover, although the New Zealand species (the weta) are best known, there is little knowledge of the biology of ground weta (Hemiandrus species), a variable genus especially with regard to ovipositor length. This paper presents observations of mating and post-mating behavior of several Hemiandrus species with short ovipositors. Sexually active males and females drum their abdomens on the substrate, apparently as local signals for mate attraction (pheromones may be involved in long distance communication). After mating there is both maternal and paternal investment. Females provide care to eggs and young larvae and males provide a spermatophylax to the female, a mating meal that, in other ensiferan Orthoptera can be an important source of nutrition. In contrast to other ensiferans, however, the spermatophylax of Hemiandrus species with short ovipositors is deposited on the female’s abdomen, a separate location from the sperm ampulla. The spermatophylax is deposited while the male is attached to the female’s underside, apparently to her modified 6th abdominal sternite. Also, in contrast to related taxa, males remain with their mates while the mating meal is eaten. These observations indicate that ground weta are excellent systems for examining behavioral and ecological questions about the evolution of complex signals, as well as the evolution of maternal and paternal investment.

10acommunication10aHemiandrus10amating behavior10aparental investment1 aGwynne, Darryl, T. uhttp://www.jstor.org/stable/25086232