Species: Pseudagrion microcephalum (Rambur, 1842)
Synonyms: Pseudagrion microcephalum stainbergerorum Marinov, 2012
Classification
Phylum: Arthropoda
 Class: Insecta
  Order: Odonata
   Family: Coenagrionidae
    Genus: Pseudagrion

Morphology:
Larva:
 
- Body elongate small size
- Antenna 6 segments
- Compound eyes long as some as wide
- Posterior of head convex inward, occiput sharp
- Labium quadrate or more or less triangular in shape, with moveable and end hooks
- 4 palapal setae, distal part of labial palpal lobe with end hooks and microscopic teeth on inner
- 1 premental setae in each side of midline of mentum
- Legs with 2 distinct brown and 1 small mark
- Lateral segment 1-10 with ridge and different number of spine


Figure
Pseudagrion microcephalum, lateral view of adult (Source: Vannachak, 2009)


Pseudagrion microcephalum, A; dorsal view of larva; B: dorsal view of head; C: labium; D: gill lamella (Source: Vannachak, 2009)
Distribution:
 - central Thailand
 - southeastern Thailand
 - Chiang Mai Province
 - Lampang Province
 - Phrae Province
 - Chaiyaphum Province
 - Kalasin Province
 - Kanchanaburi Province
 - Phetchaburi Province
 - Phuket Province
 - Songkhla Province
 - Narathiwat Province
 - Khon Kaen Province

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.
 - Hämäläinen, M. and Pinratana, A. 1999. Atlas of the Dragonflies of Thailand: Distribution Maps by Provinces. Brothers of St. Gabriel in Thailand, Bangkok.
 - Vannachak, V. 2009. Association of Odonnata nymphs and adults in Muang district, Khon Kaen Province. Special study. Khon Kaen University.

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