Species: Pseudagrion rubriceps Selys, 1876
Synonyms: Archibasis ceylonica Kirby, 1891, Pseudagrion flavifrons Needham & Gyger, 1939
Classification
Phylum: Arthropoda
 Class: Insecta
  Order: Odonata
   Family: Coenagrionidae
    Genus: Pseudagrion

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


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


Pseudagrion rubriceps, A: dorsal view of larva; B: dorsal view of head; C: labium; D: gill lamella (Source: Vannachak, 2009)
Distribution:
 - northen Thailand
 - northeastern Thailand
 - southeastern Thailand
 - central Thailand
 - Kanchanaburi Province
 - Phetchaburi Province
 - Phangnga Province
 - Nakhon Si Thammarat Province
 - Khon Kaen Province

Work cited:
 - Saetung, T. and Boonsoong, B. 2016. Description of the final instar larva of Pseudagrion pruinosum (Burmeister, 1839) (Odonata: Coenagrionidae) from Thailand. Zootaxa 4175 (3): 292-300.
 - 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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