Male anisopteran odonata secondary genitalia: Variations among libellulidae genera from Tasik Chini Pahang, Malaysia

Fadilawati Ali, Chee Yen Choong, Yong Foo Ng, B. A H Zainal-Abidin

Research output: Contribution to journalArticle

Abstract

Variation of the male anisopteran odonate secondary genitalia type species from two genera of the family Libellulidae was studied in considerable details. Preserved adult male dragonflies of Orthetrum and Rhyothemis genera collected from Tasik Chini Pahang, Malaysia were used in this study. Basically the secondary genitalia was secured, processed and fixed onto a glass slide using special cellophane tape and observed under Hitachi Tabletop SEM Microscope-1000 (TM-1000) at 600x and 800x magnifications for the overall morphology and for measurements. Results showed that the genital parts of the secondary genitalia of the male (lamina, hamule, genital lobe and penis) of all species were distinctively defined and characterized. There are considerable variations in the shape, structures and size of the secondary male genitalia of the species from the two different genera. However there are some resemblances in the morphological appearances of species in the same genus in that the presence of flagellum and small size of anterior hamular hook in Orthetrum. and that of well developed anterior hamular hook, lamina covered with long setae and lateral lobes with c-shaped structure housing the penis in Rhyothemis. This is the first attempt in which variations in male secondary genitalia of eight species of the anisopteran Odonata collected from Tasik Chini Malaysia were exclusively studied and characterized.

Original languageEnglish
Pages (from-to)131-136
Number of pages6
JournalMalaysian Journal of Microscopy
Volume6
Issue number1
Publication statusPublished - 2010

Fingerprint

Odonata
Male Genitalia
Malaysia
Genitalia
Hooks
Cellophane
Penis
Tapes
hooks
Sensilla
Microscopes
Flagella
lobes
Glass
cellophane
Scanning electron microscopy
magnification
chutes
tapes
microscopes

Keywords

  • Anisopteran Odonata
  • Male secondary genitalia
  • Tasik Chini Pahang, Malaysia
  • Variations

ASJC Scopus subject areas

  • Histology
  • Pathology and Forensic Medicine
  • Instrumentation

Cite this

Male anisopteran odonata secondary genitalia : Variations among libellulidae genera from Tasik Chini Pahang, Malaysia. / Ali, Fadilawati; Choong, Chee Yen; Ng, Yong Foo; Zainal-Abidin, B. A H.

In: Malaysian Journal of Microscopy, Vol. 6, No. 1, 2010, p. 131-136.

Research output: Contribution to journalArticle

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