Phyllogomphus annulus Klots, 1944
Crested Leaftail

Synonyms:

  • scientific: P. selysi sensu Fraser, 1957 nec Schouteden, 1933; P. dundomajoricus Fraser, 1957; P. dundominusculus Fraser, 1957

Type locality: Medji [= Medje], DRC

Diagnosis

Male is similar to P. schoutedeni by (a) posterior hamule stout, its posterior border semi-circular; (b) S4-6 all black or with yellow basal spots or rings; (c) cerci at most 1.5x as long as epiproct; (d) apices of cerci broad and truncate. However, differs by (1) ranging from W Uganda to Gabon; (2) larger size, Hw 40-47 mm; (3) face including occiput all dark, with isolated green markings; (4) S4-6 all black, sometimes with pairs of small yellow basal spots; (5) S10 red-brown, denticles on dorsal ridge directed anteriorly, lateral excavations of apical border fringed with hair; (6) cerci brown, paler on tips, scarcely longer than epiproct, with rectangularly kinked outer border. [Adapted from Dijkstra & Clausnitzer 2014; this diagnosis not yet verified by author]

Habitat description

Streams in open areas in forest, but sometimes shaded. Often with a sandy and/or probably soft (like muddy) bottom. From 300 to 1200 m above sea level, but mostly below 900.

Distribution

confirmed: Angola; Congo-Brazzaville; Democratic Republic of the Congo; Gabon; Uganda


Male © Nicolas Meziere


Head (front)

Vulvar scale (ventral view)

Anterior hamule (ventral view)

Map citation: Clausnitzer, V., K.-D.B. Dijkstra, R. Koch, J.-P. Boudot, W.R.T. Darwall, J. Kipping, B. Samraoui, M.J. Samways, J.P. Simaika & F. Suhling, 2012. Focus on African Freshwaters: hotspots of dragonfly diversity and conservation concern. Frontiers in Ecology and the Environment 10: 129-134.


Barcode specimen(s):


Male; Democratic Republic of Congo, Province Orientale, © Dijkstra, K.-D.B.


Female; Democratic Republic of Congo, Province Orientale, © Dijkstra, K.-D.B.


Adult, male; Gabon, Haut-Ogoué, Plateau Batéké - vallée de la Léconi © Mézière, Nicolas, JENS KIPPING, HANNES KRAHNSTOEVER


Adult, male; Gabon, Haut-Ogoué, Plateau Batéké - vallée de la Léconi © Mézière, Nicolas, JENS KIPPING, HANNES KRAHNSTOEVER

References

  • Klots, E.B. (1944). Notes on the Gomphinae (Odonata) with descriptions of new species. American Museum Novitates, 1259, 1-11.
  • Longfield, C. (1959). The Odonata of N. Angola. Part II. Publicacoes culturais Companhia Diamantes Angola, 45, 13-42. [PDF file]

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2018-10-17].