Last Updated on Tuesday, 12 April, 2022 05:00:32 PM


INDEX  >  Dragonflies of Borneo  >  Family of Aeshnidae


Family of Aeshnidae

Family of Aeshnidae is the largest dragonflies on the planet. Also the fastest flying dragonflies.


Family: Aeshnidae
Genus: Anax


Anax panybeus

MALE 92mm 2007-10-28 BOMBALAI



Family: Aeshnidae
Genus: Oligoaeschna


Oligoaeschna foliacea

MALE 63mm 2008-06-03 SRI AMAN
FEMALE 66mm 2008-06-02 SRI AMAN



Family: Aeshnidae
Genus: Gynacantha

Gynacantha basiguttataGynacantha basiguttata
Gynacantha basiguttata

MALE ♂74mm 2007-09-06 SEMARAK
FEMALE ♀76mm 2007-11-06 SEMARAK


Gynacantha dohrni
Gynacantha dohrni

MALE ♂68mm 2008-07-30 SEMARAK


Family: Aeshnidae
Genus: Indaeschna
Only 1 species in Borneo under this genus
But 1 unidentified FEMALE found in 2017 believed to be a new record for Borneo

Indaeschna sp HSBC unidentified
Indaeschna sp HSBC
unidentified
believed to be a new record for Borneo
♀75mm 2017-10-7 HSBC

FEMALE no record


Indaeschna grubaueri
Indaeschna grubaueri

♂95mm 2017-07-01 HILL ZONE

FEMALE no record


Family of Aeshnidae

Comparison of segment 8,9,10 of FEMALEs dragonflies from 3 Genus in the family of Aeshnidae:

Genus Gynacantha Genus Indaeschna Genus Oligoaeschna

Gynacantha Basiguttata

Indaeschna sp HSBC unidentified

Oligoaeschna Foliacea
     
     

The 3 families of dragonflies found in Borneo Island:

1 Family of Aeshnidae

2 Family of Gomphid

3 Family Libellulidae


RELATED  TOPICS


Pseudagrion sp HILLZONE 婆羅洲細蟌
INTRODUCTION TO THE DAMSELFLIES OF SABAH, BORNEO ISLAND


Ichneumon sp BORNEO
Insects of Borneo

Insects are  diverse and dominant inhabitants of the tropical rainforests in Borneo Island. New species are discovered too often. Entomologists are still struggling to cope with the documentation of tropical insect diversity.


Red Dragonfly of Sabah
Red Dragonfly of Sabah

Most of the common dragonflies in Sabah are red coloured, especially from the family Libellulidae.  Some red pecies are even confused as same species, for example the three species of Genus Neurothemis.


Eyes of a MALE Brachydiplax chalybea
The compound eyes of dragonflies

Dragonflies and damselflies have large compound eyes that can see in all directions. When the compound eye is magnified several hundred times, each individual facet (ommatidium) is shown to be hexagonal in shape.



Ovipositor (Vulvar Lamina)
of FEMALE Dragonflies and Damselflies

FEMALE dragonflies have either one of the two method of depositing eggs from the abdomen:
1- using Ovipositor Structure
2- using Vulvar Lamina

MALE do not have an ovipositor. Instead MALE dragonfly and damselfly have appendages.



GO FURTHER


FLORA
Ficus subgelderi 淡金榕
Fig trees of Sabah

Borneo has 150 species of wild fig trees. Most of them are found in forests of Sabah.


FISHERIES
Tiger Prawn Farms in Tawau
Tiger Prawn Farms in Tawau

Prawn farming is a main commercial activities in Tawau. Spawners from Tawau are graded the best in Malaysia. For decades, Tawau has been exporting high-grade tiger prawns to several countries such as Korea, Japan, Taiwan, China, Vietnam, Singapore, Egypt and Australia.




Web Analytics
Damselflies of Borneo