Allocnemis vicki Dijkstra & Schütte

Dijkstra, Klaas-Douwe B., Kipping, Jens & Mézière, Nicolas, 2015, Sixty new dragonfly and damselfly species from Africa (Odonata), Odonatologica 44 (4), pp. 447-678: 482

publication ID

10.5281/zenodo.35388

publication LSID

lsid:zoobank.org:pub:A0592344-0F17-4463-8CE2-02900DBB8F20

persistent identifier

http://treatment.plazi.org/id/D5CB0B83-756A-4A5A-AD62-64D5FF80DC66

taxon LSID

lsid:zoobank.org:act:D5CB0B83-756A-4A5A-AD62-64D5FF80DC66

treatment provided by

Donat

scientific name

Allocnemis vicki Dijkstra & Schütte
status

sp. nov.

Allocnemis vicki Dijkstra & Schütte  ZBK  sp. nov. –

Blue-shouldered Yellowwing

(Type Photo 7, Photo 13, Fig. 4)

Taxonomy

Reported as Chlorocnemis pauli (Longfield, 1936)  by Gambles (1975), but Dijkstra et al. (2014) sunk that genus in Allocnemis Selys, 1863  . Indeed belongs to the pauli  -group of Allocnemis  (see below), which also includes A. interrupta (Legrand, 1984)  and A. wittei (Fraser, 1955)  , and possibly A. eisentrauti (Pinhey, 1974)  , although it is morphologically and genetically distinctive.

Material studied

Holotype ♂. Cameroon, Northwest Province, 12 km SW of Bamenda, Baba II , small stream in montane forest, 1800–1900 m a.s.l. (5.85 °N 10.10 °E), 29 -v- 2008, leg. K.- D.B. Dijkstra & K. Schütte, RMNHGoogleMaps  .

Further material. CAMEROON (Northwest Province): 7♂ ( RMNH.INS.229129, RMNH.INS.500115), 2♀ (one in copula with holotype), as holotype, RMNH View Materials GoogleMaps  . CAMEROON (Southwest Province): 1♂, Kodmin, Serungwe River (4.9989°N 9.7011°E), 06-iv-2003, leg. & coll. G.S. Vick. GoogleMaps 

River (4.9989°N 9.7011°E), 06-iv-2003, leg. & coll. G.S. Vick.

Genetics Two unique haplotypes (n = 2) fall within the variation of five (n = 8) of A. pauli  from Angola, Gabon and Uganda; the two together nearest to A.interrupta  and A. wittei  . Male morphological diagnosis

Fairly large damselfly (Hw 22.0–23.0 mm; n =5) that belongs to the pauli  - group by the combination of (a) the blue-marked head and thorax; (b) the anteriorly blue femora and tibiae; and (c) the orange abdomen tip, which as in its sister-species A. pauli  covers the entire dorsum of the cerci and S9–10, with a dorso-apical spot on S8, although the latter can be absent in A. pauli  ( Fig. 4). Differs by (1) the narrowly black-bordered blue rather than wholly black labrum, although A. pauli  rarely has a blue central spot; (2) the almost completely blue mesepisterna, rather than with ante-humeral stripes that are about half as wide as mesepisternum; and (3) the paraprocts that extend as far as the tips of the cerci, rather than somewhat beyond ( Fig. 4).

Etymology

Named in honour of Graham S. Vick who made significant contributions to the knowledge of central African Odonata  with his Cameroon Dragonfly Project (masculine singular genitive noun).

Range and ecology

Found to be common at a tiny stream overgrown by herbs in the forest remnant of Baba II near Bamenda ( Photo 13). Also collected at Kodmin in the Bakossi Mountains and from the Obudu Plateau in Nigeria (Gambles 1975). Thus appears to be endemic to forest streamlets in the highlands of southwestern Cameroon and bordering Nigeria between 1 500 and 1 900 m a.s.l., a range and habitat almost identical to that of Africocypha centripunctata  .

RMNH

Netherlands, Leiden, Nationaal Natuurhistorische Museum ("Naturalis") [formerly Rijksmuseum van Natuurlijke Historie]