Acisoma attenboroughi, Mens, Lotte P., Schütte, Kai, Stokvis, Frank R. & Dijkstra, Klaas-Douwe B., 2016
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publication ID |
https://doi.org/ 10.11646/zootaxa.4109.2.3 |
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publication LSID |
lsid:zoobank.org:pub:3DF4E74C-F422-48AD-AFEE-F3B0FEA8F443 |
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DOI |
https://doi.org/10.5281/zenodo.5673007 |
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persistent identifier |
https://treatment.plazi.org/id/244B882F-2324-7621-FF71-25E5FD75A717 |
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treatment provided by |
Plazi |
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scientific name |
Acisoma attenboroughi |
| status |
sp. nov. |
Acisoma attenboroughi View in CoL sp. nov. —Attenborough’s Pintail
( Figs. 4 View FIGURE 4 E, 5A–C, 5F–G, 6E–F, 7D, 8D, 10D, 11)
Type material. Holotype ( Fig. 11 View FIGURE 11 ): male, Andasibe, lake Toamasina, 12-xii-2006, K. Schütte ( ZMUH).
Other material. Madagascar: 1 male, Ankarafantsika National Park, Ampijoroa, 06-iii-2001, G. Garcia ( RMNH); 1 male, Tananarive, 21-iii-1985, F. Keiser ( RMNH); 1 male, locality unknown, 1993, J.M. Elouard ( MNHN); 1 male, Madagascar, Coll. Martin ( MNHN); 7 males, Andasibe, lake Toamasina, 12-xii-2006, K. Schütte ( ZMUH); 5 males, Andasibe, river Toamasina, 12-xii-2006, K. Schütte ( ZMUH); 7 males, Fort-Dauphin, Amboavola, 28-xi-2006, K. Schütte ( ZMUH); 1 male, Fort-Dauphin, Tsimelahy, 1.5km de accueil, 01-x-2006, K. Schütte ( ZMUH); 1 male, Fort-Dauphin, Enato, 26-x-2006, K. Schütte ( ZMUH); 1 male, Fianarantsoa, Ranomafana, ValBio field station next to river, 01-xi-2006, K. Schütte ( ZMUH); 3 males, Tolongoina, coffee plantation, 10-xi-2006, K. Schütte ( ZMUH); 1 male, Tolongoina, tavy in forest, 04-xi-2006, K. Schütte ( ZMUH).
Etymology. The new species honours Sir David Attenborough on his 90th birthday. His documentaries inspired entire generations to love and conserve nature ( Dijkstra 2016).
Male diagnosis. Confined to Madagascar, where easily identified by the characters typical of the group lumped formerly under A. panorpoides : (a) extensively white labrum, labium, thorax and underside of S3–7; (b) 1 cell in Fw triangle; (c) fairly long Fw Pt, about 11–14% as long as Hw; (d) abdomen that narrows abruptly on S 5 in lateral view, with S6–10 slender ( Fig. 7 View FIGURE 7. S 2 – 10 D); (e) fragmented and frayed white markings on S2–5 and large white lateral spots on S7 ( Fig. 7 View FIGURE 7. S 2 – 10 D); and (f) broad and triangular lobe of hamule ( Fig. 8 View FIGURE 8 D). Unique in the genus by the (1) dorso-central black spot on the mesepisternum that is shifted toward and fused with the black humeral stripe ( Fig. 6 View FIGURE 6 E–F); and (2) S4 typically with all black ventral carina but partly white ventro-apical carina, although the latter is all black in about 10% of cases ( Fig. 7 View FIGURE 7. S 2 – 10 D). The shape and general appearance is intermediate between A. panorpoides from Asia and A. inflatum from Africa, with a (3) stout abdomen, with S6 about 1.5x to 2x as long as high, and a fairly distinct ‘step’ between the ventral borders of S5 and S6 ( Fig. 7 View FIGURE 7. S 2 – 10 D). Differs from A. panorpoides by the (4) wide black band across the antefrons, which is 40–80% as wide as the labrum is high ( Fig. 4 View FIGURE 4 E); (5) large black spot on the labrum attached to its base ( Fig. 4 View FIGURE 4 E); and (6) always incomplete distal Ax in Fw; and from A. inflatum by the (7) sublateral black marking concentrated on apical side of S4 ( Fig. 7 View FIGURE 7. S 2 – 10 D); and (8) more slender hook of the hamule ( Fig. 8 View FIGURE 8 D).
Range and ecology. Widespread across Madagascar, including the interior, at weedy ponds such as abandoned rice fields. Found down to the coast in the east (Toamasina, Tolagnaro) and west (Mahajanga) but not in the littoral forests where A. ascalaphoides occurs ( Fig. 9 View FIGURE 9 A).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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