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Dragonfly (Odonata) study

Report on Odonata Study done on a recent survey at Ayer Hitam Peatswamp Forest in the state of Johor, Malaysia.

Action Description:

Walking along the flooded path, one would be enchanted to see dozens of dragonflies and damselflies species buzzing around everywhere. It is unbelievable that this tiny area of 4000 hectares is home to 44 Odonata species and counting. The species recorded from Ayer Hitam Forest Reserve covers eight families thus representing 18% of the total species found in Peninsular Malaysia.

Species found abundantly in AHFR are Neurothemis fluctuans, Nannophya pygmaea, Ceriagrion cerinorubellum, Pseudagrion williamsoni, Pseudagrion microcephalum, Brachydiplax chalybea, Rhyothemis obsolescens, Rhodothemis rufa, Ictinogomphus decoratus, Orthetrum sabina and Brachygonia oculata.

The true alluvial swamp and peat swamp species recorded at AHFR are Amphicnemis gracilis, Archibasis viola, Brachygonia oculata, Elattoneura aurantiaca, Podolestes buwaldai, Podolestes orientalis, Ponorthemis serrata, Rhyothemis aterrima and Risiophlebia dohrni.

However, the most interesting species collected from AHFR is Indothemis carnatica. A few individuals of Indothemis carnatica were collected at a shallow water pool. Indothemis carnatica is so far known from India, Sri Lanka and Thailand, and it appears to be very scarce and local (Dow 2009). Another interesting species recorded from AHFR is Podolestes buwaldai. Podolestes buwaldai is a rare and local species confined to southern Peninsular Malaysia (Orr 2005). Only one specimen was collected/observed during the short sampling trip to AHFR.

Odonata Checklist for Ayer Hitam Forest and Surroundings, Johor
recorded on 5-8 October 2012

Family Chlorocyphidae (1)
Libellago hyalina (Selys, 1859)

Family Megapodagrionidea (2)
Podolestes buwaldai Lieftinck, 1940
Podolestes orientalis Selys, 1862

Family Coenagrionidae (7)
Amphicnemis gracilis Krüger, 1898
Archibasis viola Lieftinck, 1949
Argiocnemis rubescens rubeola Selys, 1877
Ceriagrion cerinorubellum (Brauer, 1865)
Pseudagrion microcephalum (Rambur, 1842)
Pseudagrion rubriceps Selys, 1876
Pseudagrion williamsoni Fraser, 1922

Family Platycnemididae (3)
Copera ciliata (Selys, 1863)
Copera marginipes (Rambur, 1842)
Copera vittata (Selys, 1863)

Family Protoneuridae (2)
Elattoneura aurantiaca (Selys, 1886)
Prodasineura humeralis (Selys, 1860)

Family Gomphidae (1)
Ictinogomphus decoratus melaenops (Selys, 1858)

Family Corduliidae (1)
Epophthalmia vittigera (Rambur, 1842)

Family Libellulidae (27)
Acisoma panorpoides Rambur, 1842
Brachydiplax chalybea Brauer, 1868
Brachygonia oculata (Brauer, 1878)
Brachythemis contaminata (Fabricius, 1793)
Chalybeothemis fluviatilis Lieftinck, 1933
Indothemis carnatica (Fabricius, 1798)
Nannophya pygmaea Rambur, 1842
Neurothemis fluctuans (Fabricius, 1793)
Orchithemis pulcherrima Brauer, 1878
Orthetrum chrysis (Selys, 1891)
Orthetrum sabina (Drury, 1770)
Orthetrum testaceum (Burmeister, 1839)
Pantala flavescens (Fabricius, 1798)
Pornothemis serrata Krüger, 1902
Potamarcha congener (Rambur, 1842)
Pseudothemis jorina Förster, 1904
Rhodothemis rufa (Rambur, 1842)
Rhyothemis aterrima Selys, 1891
Rhyothemis obsolescens Kirby, 1889
Rhyothemis phyllis (Sulzer, 1776)
Rhyothemis triangularis Kirby, 1889
Risiophlebia dohrni (Krüger, 1902)
Tetrathemis irregularis hyalina Kirby, 1889
Tholymis tillarga (Fabricius, 1798)
Trithemis aurora (Burmeister, 1839)
Tyriobapta torrida Kirby, 1889
Urothemis signata insignata (Selys, 1872)





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