Species: Orthetrum sabina (Drury, 1770)
Synonyms: Libellula gibba Fabricius, 1798, Libellula leptura Burmeister, 1839, Libellula ampullacea Schneider, 1845, Lepthemis divisa Selys, 1878, Orthetrum nigrescens Bartenev, 1929, Orthetrum viduatum Lieftinck, 1942
Classification
Phylum: Arthropoda
 Class: Insecta
  Order: Odonata
   Family: Libellulidae
    Genus: Orthetrum

Morphology:
Larva:
 
- Body medium size
- Antenna 8 segments
- Head rectangular, anterior of head with long hairs
- Labium spoon shape, distal part of each palpal lobe smooth
- Labial palps with 8 palpal
- Premental setae 18-25 in each side of midline of mentum and different size
- Prothorax prominent in lateral with long hairs
- Wing-sheaths parallel
- Mid dorsal spine developed on abdominal segmented 4-7, rarely 4-8, lateral spine small developed on segmented 8-9


Figure
Orthetrum sabina, dorsal view of adult (Source: Vannachak, 2009)


Orthetrum sabina, A: dorsal view of larva; B: prothorax (Source: Vannachak, 2009)
Distribution:
 - northen Thailand
 - southwestern Thailand
 - northeastern Thailand
 - central Thailand
 - southeastern Thailand
 - southern Thailand

Work cited:
 - Sites, R.W. and Vitheepradit, A. 2010. Recovery of the freshwater lentic insect fauna in Thailand following the tsunami of 2004. The Raffles Bulletin of Zoology 58(2): 329–348.
 - Vannachak, V. 2009. Association of Odonnata nymphs and adults in Muang district, Khon Kaen Province. Special study. Khon Kaen University.

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