100 1426 Crenigomphus hartmanni Clubbed Talontail Young Male Songimvelo Nature Reserve MP RSA Feb 2019r 15 100 1426 Crenigomphus hartmanni Clubbed Talontail Male Ezemvelo GP RSA Jan 2016r 1 107 515 Crenigomphus hartmanni Clubbed Talontail Female Douglas NCP RSA Jan 2018r 1

Clubbed Talontail.    Knoppiekloustert.

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Images Male Male Claspers
100 597 Crenigomphus hartmanni Clubbed Talontail Male Ezemvelo GP RSA Jan 2016r 13 100 1792 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 3 102 561 Talontail r 1
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Short description:

Clubbed Talontail, Crenigomphus hartmanni, Genus Crenigomphus, Family Gomphidae, is fairly large, dull yellowish green and brown striped, with very distinct club of two small foliations on each side.

Key identification features:

Male

  • Face greenish yellow with faint brownish markings,with brown bar across front of frons. 100 1796 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 22  Head brownish black above with yellowish green undulated ridge running across top of head, back of head brownish black. 100 1793 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 8  Neck brownish with greenish hind margin.
  • Eyes greyish turquoise above, light grey below. 100 1796 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 22
  • Thorax yellowish green with narrow indistinct brown stripes. 100 1793 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 8  100 1794 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 6  100 1795 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 15
  • Wings lightly greenish smoky with distinctly yellow costa that mellows with age. Pterostigmas narrow,black, fairly long (4.0–4.5 mm), bordered in front by yellow vein. 100 1803 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 49
  • Abdomen with complex pattern of yellow, yellowish green and brown,with a fine sharply-defined brown patch at each segmental joint. 100 1799 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 36  Segment 7 mostly yellowish green with black dorsal patch in second half. Segments 8, 9 and especially segment 10 very swollen, yellowish, reddish brown and black, with small yellow and black edged foliations. 100 1800 Crenigomphus hartmanni Clubbed Talontail Male Melkrivier LP RSA Dec 2017r 38 Appendages are large, light brown, Superior appendages robust and curved curve downwards Inferior appendages robust and right-angled. 102 561 Talontail r 1 102 562 Talontail r 4 102 563 Talontail r 3Tips of appendages are black. This give this species a large clubbed abdomen with talon-like powerful appendages.    

Females

  • Similar to male.
  • Pterostigmas slightly longer (5 mm).  Abdomen noticeably more thickened, segments 8 and 9 brownish but not swollen, and each bears small black-edged foliations
  • Wing costal vein bright yellow
 Compared with other species:
  • Looks similar to the Horned Talontail, C. cornutus, but C. hartmanni has lighter abdomen and much larger foliations and club.
  • May be misidentified when using thorax pattern and abdomen markings with Ceratogomphus pictus 100 1495 Ceratogomphus pictus Common Thorntail Male Hertzogberg MP RSA Nov 2017r 8 (Common Thorntail) and Onychogomphus supinus 100 1766 Onychogomphus supinus Lined Claspertail Male Melkrivier LP RSA Dec 2017r 6 (Lined Claspertail)
Distribution and habitat:
  • Common and widespread across the warm eastern and northern side of South Africa.
  • This species is found around lakes, pools, swift open savanna streams and rivers, with tall grass and thorn bush nearby. It is easy to find but very seasonal.
Behaviour:
  • Hunts from rock in or near rivers. Also perches conspicuously on tops of tall grass and small bushes. Sometimes found away from the water.
Further reading:
Clubbed Talontail Crenigomphus hartmanni
Books:
A Guide to Dragonflies and Damselflies of South Africa ... p 132
Dragonflies and Damselflies of South Africa ... p 130
Dragonfly Biotic Index ... p 41

The Dragonflies and Damselflies of Eastern Africa ... p. 108
Websites of interest:
A Visual Guide to the Damselflies and Dragonflies of South Africa

Odonata Atlas of Africa VMU Number 664640
African Dragonflies and Damselflies Online
The IUCN Red List of Threatened Species
Other Information:
Size Comparison Diagram: Dragonflies and Damselflies
Morphology of a Dragonfly and Damselfly
Map of South Africa
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