Description of the female, egg and first instar nymph of the stick insect Paraphasma paulense (Phasmatodea: Pseudophasmatidae) from Southeast Brazil

Chiquetto-Machado, Pedro I.; Albertoni, Fabiano F.

doi:10.3897/jor.26.20180

Cited by 10 publications

(6 citation statements)

References 25 publications

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“…Size distinction is one of the most common, although many other morphological features have been described among adults in the order [10]. Some species, however, show a discrete differentiation between sexes; one example is Paraphasma paulense Rehn, 1918, which has a tenuous SD, with both sexes exhibiting well-developed hind wings and females being only slightly stouter and longer than males [29].…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Sexual Dimorphism of First Instar Nymphs of the Giant Stick Insect, Cladomorphus phyllinus Gray, 1835, from the Atlantic Forest, Brazil

Costa,

Torres,

Paschoaletto

et al. 2023

Animals

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The first instar nymphs, both male and female, of the giant stick insect Cladomorphus phyllinus Gray, 1835 were carefully described and measured, revealing a remarkable sexual dimorphism that is considered rare among insects and is poorly explored in the order Phasmida. The studied F1 nymphs originated in captivity from eggs laid by a coupled female specimen collected in the Atlantic Forest in the vicinity of Petrópolis city, state of Rio de Janeiro, Brazil. The first instar nymphs of C. phyllinus were measured and illustrated in high-resolution photographs to show the general aspects and details of sexually dimorphic traits, making clear the phenotypic differences in the sexes. A total of 100 nymphs were kept alive until morphological sexual dimorphism was confirmed and quantified. All recently hatched first instar nymphs were separated based on the presumed male and female characteristics, i.e., the presence and absence of the suture in the metanotum in the males and females, respectively, had their sexes confirmed in 100% of the specimens as previously assigned. These results confirm this new morphological trait, which here is named “alar suture” as sex-specific in the first instar nymphs, a novelty in this stage of development of sexual differentiation. In addition, the distinct conformations of the last three abdominal sternites of both sexes were recorded.

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Section: Introductionmentioning

confidence: 99%

Unraveling the Sexual Dimorphism of First Instar Nymphs of the Giant Stick Insect, Cladomorphus phyllinus Gray, 1835, from the Atlantic Forest, Brazil

Costa,

Torres,

Paschoaletto

et al. 2023

Animals

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“…In the 21 st century, and especially in the last five years, the study of Phasmatodea has been intensified in Brazil with the publication of works addressing mainly taxonomic and morphological aspects (see e.g. Chiquetto-Machado and Albertoni, 2017;Chiquetto-Machado, 2018;Rafael, 2019, 2020;Crispino et al, 2020). Madeira-Ott et al (2020) detailed the state of knowledge about Brazilian stick insects, synthesizing the main researches that have been carried out on the group in the country and drawing attention to aspects on which there is still very little study, such as the biology and bionomy of Brazilian species.…”

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confidence: 99%

Bionomic notes on parthenogenetic females and a record of parasitism by Forcipomyia Meigen (Diptera: Ceratopogonidae) in the stick insect Cladoxerus cryphaleus (Westwood) (Phasmatodea: Phasmatidae)

Chiquetto-Machado

Torres

Costa

2020

Rev. Bras. entomol.

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Stick insects (Phasmatodea) are among the least studied insect groups in Brazil. Although in recent years there has been an increase in the number of published studies on taxonomy and morphology of Brazilian stick insects, they remain very little-known concerning biological and bionomic aspects. From five females of Cladoxerus cryphaleus (Phasmatidae: Cladomorphinae) collected in the Iguaçu National Park, Paraná, Brazil, a captive colony of parthenogenetic females was started, based on which data on longevity, fertility, and viability of eggs of this species were recorded for the first time. After imaginal molting, the 21 females studied had an average longevity of 103.7 days. Each female produced on average 125.3 eggs, which had a hatching rate of 34.2%. In addition, we recorded a C. cryphaleus male nymph being parasitized by a biting midge of the subgenus Forcipomyia (Microhelea) (Diptera: Ceratopogonidae). The male, in pre-imaginal instar and already parasitized, was collected in the municipality of Petrópolis, Rio de Janeiro.

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“…These insects are poorly studied (Bradley & Galil 1977;Zompro 2001;Chiquetto-Machado & Albertoni 2017), and most of the studies involve taxonomic approaches and species description (Costa Lima 1938;Toledo Piza 1944;Zompro & Domenico 2005;Hennemann et al 2016;Kumagai & Fonseca 2009;Heleodoro et al 2017), others assess biological and ecological aspects (Zapata & Torres 1970;Dorval et al 2003;Sottoriva et al 2008;Alvarenga et al 2018). In addition we have some researches on the digestive system (Azevedo et al 2013;Monteiro et al 2014).…”

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confidence: 99%

Method for rearing Cladomorphus phyllinus Gray, 1835 (Phasmatodea: Phasmatidae) under laboratory conditions

et al. 2020

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Cladomorphus phyllinus Gray, 1835 (Phasmatodea: Phasmatidae) is a species of stick bug native to Brazil and considered one of the largest in the southern hemisphere. The rearing method described uses rectangular cages for the maintenance of nymph and adult insects, with feeding carried out with guava leaves. This methodology promotes the multiplication of insects, which have been used for educational purposes.

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Description of the female, egg and first instar nymph of the stick insect Paraphasma paulense (Phasmatodea: Pseudophasmatidae) from Southeast Brazil

Cited by 10 publications

References 25 publications

Unraveling the Sexual Dimorphism of First Instar Nymphs of the Giant Stick Insect, Cladomorphus phyllinus Gray, 1835, from the Atlantic Forest, Brazil

Unraveling the Sexual Dimorphism of First Instar Nymphs of the Giant Stick Insect, Cladomorphus phyllinus Gray, 1835, from the Atlantic Forest, Brazil

Bionomic notes on parthenogenetic females and a record of parasitism by Forcipomyia Meigen (Diptera: Ceratopogonidae) in the stick insect Cladoxerus cryphaleus (Westwood) (Phasmatodea: Phasmatidae)

Method for rearing Cladomorphus phyllinus Gray, 1835 (Phasmatodea: Phasmatidae) under laboratory conditions

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