Gynacantha dohrni Kruger, 1899

Found in Asia: Brunei Darussalam, Borneo, Indonesia, Malaysia, Philippines

Photos from: Indonesia[ID] Malaysia[MY] Singapore[SG]
Sub-Order: ANISOPTERA Super-Family: AESHNOIDEA Family: AESHNIDAE
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Pic 11643
Full size 141 kb 
Upl on 2011-12-26

Gynacantha dohrni Kruger, 1899
Photo taken in Ladang Hangsam, Kinabatangan, Sabah (Malaysia) on 2011-12-13

Flew into house at night in oil palm plantation.


  

Pic 11642
Full size 122 kb 
Upl on 2011-12-26

Gynacantha dohrni Kruger, 1899
Photo taken in Ladang Hangsam, Kinabatangan, Sabah (Malaysia) on 2011-12-13

Flew into house at night in oil palm plantation.


  

Pic 11641
Full size 167 kb 
Upl on 2011-12-26

Gynacantha dohrni Kruger, 1899
Photo taken in Ladang Hangsam, Kinabatangan, Sabah (Malaysia) on 2011-12-13

Flew into house at night in oil palm plantation.


  

Pic 11640
Full size 184 kb 
Upl on 2011-12-26

Gynacantha dohrni Kruger, 1899
Photo taken in Ladang Hangsam, Kinabatangan, Sabah (Malaysia) on 2011-12-13

Flew into house at night in oil palm plantation.


  

Pic 6336
Full size 622 kb 
Upl on 2009-07-16

Gynacantha dohrni Kruger, 1899
Photo taken in Central Catchment Nature Reserve (Singapore) on 2008-12-11


  

Pic 4455
Full size 108 kb 
Upl on 2008-07-31

Gynacantha dohrni Kruger, 1899
Photo taken in Sabah (Malaysia) on 2008-07-30

A closer look at the pair of sharp hooks at the end of anal appendage of the above male Gynacantha dohrni


© Wong

  

Pic 4454
Full size 178 kb 
Upl on 2008-07-31

Gynacantha dohrni Kruger, 1899
Photo taken in Sabah (Malaysia) on 2008-07-30

Male Gynacantha dohrni’s anal appendage is pale color, narrow triangular and is less than one third the length of the dark superior appendage. The pair of superior appendages is long, thin and slightly distally expanded with a sharp point at the tip. (G. basiguttata is rounded tip)

Like many other species, G. dohrni’s anal appendage has a pair of sharp hooks at the end.


© Wong

  

Pic 4453
Full size 188 kb 
Upl on 2008-07-31

Gynacantha dohrni Kruger, 1899
Photo taken in Sabah (Malaysia) on 2008-07-30

Gynacantha dohrni can be easily confused with Gynacantha basiguttata. The easy visual way to separate these 2 species is the base of the abdomen of G. dohrni is more colorful with bright blue auricles while G. basiguttata’s abdomen base is somberly colored with green auricles.


© Wong

  

Pic 4452
Full size 141 kb 
Upl on 2008-07-31

Gynacantha dohrni Kruger, 1899
Photo taken in Sabah (Malaysia) on 2008-07-30

Gynacantha dohrni is a common species. Gynacantha species are easily recognized by the swollen spherical base to the abdomen with large rounded ear-like auricles on segment 2 followed by an extremely constricted segment 3.

This male Gynacantha dohrni measurement :
Front wing length : 44mm
Front wing span : 94mm
Total body length including appendages : 68mm
Superior appendage length : 7mm


© Wong

  

Pic 3429
Full size 278 kb 
Upl on 2007-10-25

Gynacantha dohrni Kruger, 1899
Photo taken in Sukau, Kinabatangan River, Sabah (Malaysia) on 2007-10-03


  

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