Family: Libellulidae
Genus: Orthetrum
Species: Orthetrum pruinosum

Orthetrum pruinosum Orthetrum chrysis Orthetrum testaceum Rhodothemis rufa

♀41mm
2016-09-16 MINI HYDRO

♀42mm
2016-03-19 SG IMAM

♀46mm
2007-10-21 DRAGONFLY POND

♀45mm
2017-06-09 WHITE BRIDGE POND

The 4 easily confused Male Red Dragonflies of Borneo
 
Orthetrum pruinosum Orthetrum chrysis Orthetrum testaceum Rhodothemis rufa
Orthetrum pruinosum Orthetrum chrysis Orthetrum testaceum Rhodothemis rufa

O. pruinosum
O. chrysis
O. testaceum


R. rufa

 

The Genus Orthetrum is distinguished by :
1) Complete antenodal cross vein
2) Discoidal field in the forewing has  3 cell rows through out.

A Rhodothemis rufa is distinguished by :
1) Incomplete antenodal cross vein
2) Discoidal field in the forewing has both 2 cell rows and 3 cell rows.
 




Eyes meet partially along a seam (arrowed)


Eyes barely touch at a centre point (arrowed)

 

Identification Guide to  Orthetrum pruinosum

Female Orthetrum pruinosum

body length = 41mm
hind wing = 35mm
wingspan = 74mm

www.wongchunxing.com  2016-09-16

 

Ref: Page 97 of DRAGONFLIES OF PENINSULAR MALAYSIA AND SINGAPORE by A.G. Orr

Identification Guide to Orthetrum pruinosum

Identification Guide to
 Orthetrum pruinosum
slow flowing streams of Borneo forests

♂44mm

Ventral View
Lateral View
S8
S9
S10

 

body length = 44mm
hind wing = 35mm
wingspan = 75mm

 
 

INDEX OF DRAGONFLY

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