118 504 Anaciaeschna triangulifera Enseleni NR 1 122 505 male Evening Hawker Anaciaeschna triangulifera Cove Rock 18 Dec 14 122 503 Evening Hawker female Anaciaeschna triangulifera Dragonfly Empisini 8 Jan 12

Evening Hawker.    Nagventer.

McLachlan, 1896

Link to our image gallery
Images in nature of Evening Hawker

Short description:

Evening Hawker, Anaciaeschna triangulifera, Genus Anaciaeschna, Family Aeshnidae, is very large, slender, dark brown with bright blue eyes, head and abdominal saddle, and greenish and blue abdominal spots.

Key identification features:

The face is light blue going to pale grey at sides and towards labrum. Frons above is light blue with a deep black, mushroom-like marking and about ½ as wide as head. The vertex is blue. Two pale dots in front of the eyes. The eyes are bright sky blue above, light blue below. Synthorax is dull brown with some greenish yellow spots (but no shoulder stripes) and two, bright yellow diagonal stripes on side. Auricles are present The wings are lightly smoky to very smoky in old individuals. Veins black. Pterostigmas is fairly short (3.2 mm), reddish brown. Membranule large, broadly bordering anal triangle for more, than ½ its length and is whitish towards the rest of the wing, becoming dark grey closest to abdomen. Hindwing tornus is angled. Hindwing cubital field is always of 2 rows at base. Abdomen: very slender and mostly deep chocolate brown and shiny. S1 has a blue bar above, and yellow one below. From above, S2 is brown in anterior half but bright blue behind. S2 below is yellow and brown. S3 has a bright patch in anterior half at side and below. The rest of abdomen has small, light blue spots, becoming larger on S8-10.
Females are much stouter than male. The face is yellowish but with a similar pattern on frons. Eyes are sienna above with bright yellow margin below. The abdomen is reddish brown with pale blue markings

Compared with other species:

Unmistakable. Bright blue head and eyes, yet bright yellow thorax side stripes and long, thin abdomen is diagnostic. There are no shoulder stripes. The mushroom-shaped, black marking on frons is also distinctive. Similar to Forest Hawker, Z. usambarica, but are medium-sized (hindwing 41-45 mm) and the male’s face is bluish white, the eyes are bright blue (but brown when young), and the small abdomen spots are also bluish.

Distribution and habitat:

In southern Africa, this species is known from Mozambique, South Africa, Zimbabwe and Zambia.
It is encountered mostly in forest, from highlands down to sea-level. It probably breeds in standing water.

Behaviour:

Dusk flier over reeds and in clearings in warm areas.

Further reading:

 Distribution Map (Including and excluding historic data)

Books:
A guide to Dragonflies and Damselflies of South Africa
...p. 116
Dragonfly Biotic Index...p. 106
Dragonflies and Damselflies of South Africa...p. 115
Websites:
Wawwick Tarboton
A Visual Guide to the Damselflies and Dragonflies of South Africa
Encyclopedia of Life
 
The IUCN Red List of Threatened Species   Least Concern
Odonata Atlas of Africa VMU Number 664070.
African Dragonflies and Damselflies Online
Other Information:
Size Comparison Diagram Dragonflies, Damselflies
Glossary of Dragonfly and Damselfly Terms and Abbreviations
Morphology of a
Dragonfly,  Damselfly
Map of South Africa

We are Renovating.

We are extensively revising the contents of the site to improve readability.
Images are now larger and linked to popups.
Guides to assist with identification of groups of species.
Distribution maps are live and is updates when article is opened.
About 2500 images are now on the data base.

 

Our Goal

To raise awareness of Dragonflies and Damselflies in southern Africa.

We recognise that Dragonflies and Damselflies change colour with age and due to sexual dimorphism. We strive to show as wide a variety of photos of as many species possible to assist with the identification of a species

Buy Photos

Most photos are for sale.
If you are interested,
please Contact Us

The Website's Links

Damselflies -  A list  Damselflies with information & images of each species. Read more

Dragonflies -  A list  Dragonflies with information & images of each species. Read more

Images -  A showcase of images of each species. Read more

Photographers - A Photographer of Dragonflies & Damselflies photo showcase. Read more

Info -  Interesting Articles, Books & Links regarding Dragonflies & Damselflies. Read more

Contact -  Do you want to buy a photo; add your photos to this website; have a questions, contact us. Read more

X

Right Click

Copyrighted material - contact us if you want to buy a photo