Sunday, November 28, 2010

Location: MacRitchie Reservoir
Species seen: 30

  • Macromia cydippe
  • Gomphidae

  • Ictinogomphus decoratus

  • Libellulidae

  • Acisoma panorpoides
  • Aethriamanta gracilis
  • Chalybeothemis fulviatilis
  • Diplacodes nebulosa
  • Indothemis limbata
  • Nannophya pygmaea
  • Neurothemis fluctuans
  • Orchithemis pulcherrima
  • Orthetrum chrysis
  • Orthetrum sabina
  • Orthetrum testaceum
  • Pantala flavescens
  • Pseudothemis jorina
  • Rhyothemis obsolescens
  • Rhyothemis phyllis phyllis
  • Tramea transmarina
  • Trithemis aurora
  • Trithemis festiva
  • Trithemis pallidinervis
  • Tyriobapta torrida
  • Urothemis signata

  • Zygoptera--Damselflies

  • Vestalis amethystina
  • Coenagrionidae
  • Archibasis melanocyana
  • Ceriagrion cerinorubellum
  • Pseudagrion microcephalum
  • Euphaeidae
  • Euphaea impar
  • Lestidae
  • Lestes praemorsus
  • Megapodagrionidae
  • Podolestes orientalis
  • Tuesday, July 13, 2010

    Macritchie Boardwalk (NSS walk)

    Location: Macritchie Boardwalk

    Species seen:
    Area: Golf Link beside reservoir
    Urothemis signata
    Pseudagrion microcephalum
    Pseudagrion australasiae
    Diplacodes nebulosa
    Acisoma panorpoides
    Lestes praemorsus
    Agriocnemis nana
    Ceriagrion cerinorubellum
    Indothemis limbata
    Rhyothemis phyllis
    Rhyothemis triangularis
    Aethriamanta gracilis
    Neurothemis fluctuans
    Orthetrum sabina
    Trithemis aurora
    Chalybeothemis fluviatilis
    Macrodiplax cora
    Agriocnemis femina
    Trithemis pallidinervis
    Tramea transmarina
    Pantala flavescens
    Rhodothemis rufa
    Epophthalmia vittigera
    Ictinogomphus decoratus
    Pseudothemis jorina
    Crocothemis servilia

    Golf Link Boardwalk
    Orchithemis pulcherrima
    Tyriobapta torrida
    Podolestes orientalis
    Vestalis species
    Orthetrum chrysis
    Euphaea impar
    Rhyothemis obsolescens
    Nesoxenia lineata

    This was a walk led by Mr. Tang from the Nature Society Singapore. There were quite a group of people that came for the walk and learnt together some common species and how different dragonflies have different habits and habitats.

    Along the walk we saw many Tramea transmarina and also Pantala flavescens, the two major migratory species to be found in Singapore. These species arrive in South East Asia after following the sea winds down from the Northern hemisphere. They have thus traveled long distances and often can be found in the later part of the year in Singapore, zooming around open land. The Pantala flavescens is in particular rather widespread, being able to be seen even in areas with high rise buildings.

    Some interesting things we saw was the Pseudothemis jorina that was flying in a territory across open reservoir, a fast flyer who surveys the area frequently and is hard to capture on camera. Later we were shocked when we saw that it had fallen into the reservoir and was quite still, in fact, being nibbled at by some small fishes (and later swallowed by a big one). We speculated that a swallow flying in the territory had collided with it and perhaps swept it into the water, as this species of dragonfly is a rather strong flyer generally.

    We then headed into the forest to try to find some forest species, and being rather lucky manage to see a female Euphaea impar, as they are generally harder to find than the male individuals. We also caught sight of a Rhyothemis obsolescens, with its pretty golden shimmering wings. We were lucky to have seen all three Rhyothemis species today.

    Ending our walk shortly before Jelutong Tower, we managed to catch a glimpse of the big turtle in the stream nearby (a really really huge one!).

    There will hopefully be other such Odonata walks in Singapore in the future! A casual walk with a group of people eager to learn more is always a good place to start becoming an odonut, even if you know nothing about Odonata at all (: