Species: Sangpradubina thailandica  Boonsoong & Sartori, 2016
Classification
Phylum: Arthropoda
 Class: Insecta
  Order: Ephemeroptera
   Family: Leptophlebiidae
    Genus: Sangpradubina
Collection specimen
Holotype:
 - male imago in Zoological Museum, Kasetsart University, Bangkok
Paratype:
     - 8 nymphs in Zoological Museum, Kasetsart University, Bangkok

Morphology:
Adult:
 Adults barely differ from any genera of Choroterpes lineage as show in figure.
Larva:
 Nymphs are differentiated from those of all genera of the Thraulus lineage by the combination of gill I consisting of only a single and slender lamella, gills 2-7 being fimbriate only in the distal half, each mandible having a tuft of setae only in the middle of the lateral margin, each maxilla having a well-developed anterolateral projection, fore- and middle femora each having a row of long setae on the outer margin, as well as tarsal claws having 4 denticles at the base and 9 in the apical position (Boonsoong and Sartori, 2016).


Figure
Imago of Sangpradubina thailandica (A) photograph of male genitalia, ventral view, abbreviation: gp = gonopore; (B) male genitalia, ventral view; (C) male genitalia, lateral view; (D) female last sternites, ventral view.


Male mature nymph of Sangpradubina thailandica (Boonsoong and Sartori, 2016)
Habitat: Larvae were collected from pebble substrates in silty sediments, usually together with larvae of Choroterpes (Euthraulus) trifurcata (Boonsoong and Sartori, 2016).

Distribution:
 - Ratchaburi province and Chanthaburi province

Work cited:
 - Boonsoong, B. and Sartori, M. 2016. Sangpradubina, an astonishing new mayfly genus from Thailand (Ephemeroptera: Leptophlebiidae: Atalophlebiinae). Zootaxa 4169 (3): 587–599.

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