Indexing

Redescription of Male Genitalia of Six Species of Genus Orthetrum Newman (Anisoptera: Libellulidae) from North West India

Author: Jagbir Singh Kirti, Simarjit Kaur and Archana Singh

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Abstract

The structure of the male secondary apparatus of six species belonging to genus Orthetrum Newman i.e. O. brunneum brunneum (Fonscolombe), O. glaucum (Brauer), O. japonicum internum Maclachan, O. pruinosum neglectum (Rambur), O. taeniolatum (Schneider) and O. triangulare triangulare (Selys) have been redescribed and illustrated in detail based on the specimens from India. The importance of various morphological attributes like anterior lamina, hamule, vesicular spermalis and penis of male secondary apparatus have been highlighted based on this study.

Keywords

Morphology, male genitalia, Orthetrum, Libellulidae

Conclusion

Kiany and Minaei (2009) while studying libellulid dragonflies from Fars Province, Italy given an account on five species of genus Orthetrum Newman including O. brunneum (Fonscolombei, 1837)and O. taeniolatum Schneider. The specimens studied by us showed same characters with few difference like in shape of genital lobes i.e. triangular in case of taeniolatum observed instead of rectangular. Later on, Degabriele (2013) also described six species of this genus from Maltese Island highlighting the variation in lamina and hamule of male genitalia indifferent species. The detailed examination of secondary male genitalic attributes of six species of genus Orthetrum Newman shows that genitalic attributes like lamina, hamules, vesicular spermalis and penis present a great deal of variation and are highly species specific. The structure of lamina and its setae are of quite good taxonomic significance and can be used to distinguish different species. Its arrangement generally varies from middors

References

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How to cite this article

Kirti, Jagbir Singh, Kaur, Simarjit and Singh, Archana (2019). Redescription of male genitalia of six species of genus Orthetrum Newman (Anisoptera: Libellulidae) from North West India. Biological Forum – An International Journal, 11(1): 107-116.