Comparative egg morphology of six <i>Meccus</i>
 species and <i>Triatoma recurva</i>
 (Stål, 1868) Hemiptera: Reduviidae

Rivas, Nancy; Sánchez-Espíndola, Esther; Camacho, Alejandro D.; Alejandre‐Aguilar, Ricardo

doi:10.1111/jvec.12205

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…Morphological and morphometric analyses conducted with other structures, such as the scutellum, genital plates in nymphs, and egg ornamentation, have shown no polymorphism in several Meccus species. At the same time, these studies have provided discriminant characters to differentiate among species (Rodríguez‐Sánchez et al , Takashi et al , Rivas et al , ).…”

Section: Discussionmentioning

confidence: 99%

External female genitalia of six species of the genusMeccus(Hemiptera: Reduviidae: Triatominae)

Rivas

Sánchez‐Cordero

Camacho

et al. 2017

Journal of Vector Ecology

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Triatomine classification is based on morphological characteristics. Studies have been conducted to improve their identification by observing many characteristics. However, there are problems of differentiating among highly interrelated species and new criteria are required. The purpose of this study was to determine the morphological differences in the external female genitalia of M. pallidipennis, M. longipennis, M. picturatus, M. bassolsae, M. mazzottii, and M. phyllosomus in order to distinguish among species using scanning electron microscopy. Observations were made of the dorsal, posterior, lateral, and ventral views of the female external genitalia for each species. In the six species we studied, relevant differences were observed in the dorsal view of the X segment, as well as the IX, VIII, and VII tergites. In the posterior and lateral view, the most visible differences were registered in the gonocoxite size of the segments VIII, IX, and X. Finally, in the ventral view of the VII sternite, differences among species were observed in the size of the inflection in the top and upper corner. Our results show that it was possible to differentiate among the triatominae species for each of the four views by using a scanning electron microscope to analyze morphological characteristics of the VII, VIII, IX, and X abdomen segments. Journal of Vector Ecology 42 (2): 271-278. 2017.

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Section: Discussionmentioning

confidence: 99%

External female genitalia of six species of the genusMeccus(Hemiptera: Reduviidae: Triatominae)

Rivas

Sánchez‐Cordero

Camacho

et al. 2017

Journal of Vector Ecology

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“…Currently, taxonomic studies of these vectors have been based on morphological, morphometric, genetic, cytogenetic, molecular analyses, and experimental crossings 5 . Morphological and morphometric studies applied to taxonomy cover various structures of triatomines, such as the head, wing, thorax and genitalia, as well as their eggs 10 – 20 …”

Section: Introductionmentioning

confidence: 99%

Analysis of the maternal inheritance hypothesis of the exochorium in eggs from hybrids of Chagas disease vectors

de Sousa,

de Oliveira,

Ravazi

et al. 2024

Sci Rep

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Morphological studies applied to the taxonomy of the Triatominae cover various structures (head, wing, thorax, genitalia, and eggs). Exochorial structures of hybrid eggs were characterized and compared with the parents, demonstrating that hybrids presented characteristics identical to the exochorial pattern observed in the females of the crosses, which resulted in the hypothesis that the pattern of triatomine eggs is possibly a characteristic inherited from females. Thus, we characterized the exochorium of the eggs of several triatomine hybrids and compared them with the parents, to assess the pattern of segregation and test the hypothesis of maternal inheritance. Hybrids were obtained in at least one direction from all crosses. The analysis of the exochorium of the eggs of the hybrids showed different patterns of segregation: "exclusively paternal", "predominantly maternal", "predominantly paternal", "mutual", and "differential". Curiously, none of the hybrids evaluated presented characteristics that segregated exclusively from the female parental species. Thus, we demonstrate that the hypothesis of maternal inheritance of the exochorium pattern of eggs is not valid and we emphasize the importance of alternative/combined tools (such as integrative taxonomy) for the correct identification of these insect vectors (mainly in view of possible natural hybridization events due to climate and environmental changes).

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A microscopy investigation of the complex problem of infertility of insect hybrids. Studies on the reproductive systems, eggshells, and karyotypes of the representatives of the genus Platymeris (Heteroptera, Reduviidae) and their hybrids

Bugaj-Nawrocka

Chajec

Urbisz

et al. 2022

Micron

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Comparative egg morphology of six Meccus species and Triatoma recurva (Stål, 1868) Hemiptera: Reduviidae

Cited by 5 publications

References 23 publications

External female genitalia of six species of the genusMeccus(Hemiptera: Reduviidae: Triatominae)

External female genitalia of six species of the genusMeccus(Hemiptera: Reduviidae: Triatominae)

Analysis of the maternal inheritance hypothesis of the exochorium in eggs from hybrids of Chagas disease vectors

A microscopy investigation of the complex problem of infertility of insect hybrids. Studies on the reproductive systems, eggshells, and karyotypes of the representatives of the genus Platymeris (Heteroptera, Reduviidae) and their hybrids

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