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Species: Hypoponera odiosa   Bolton & Fisher, 2011 

Classification:
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Taxonomic History (provided by Barry Bolton, 2019)

Hypoponera odiosa Bolton & Fisher, 2011 PDF: 80, figs. 88-90 (w.q.) CAMEROUN. Afrotropic. AntCat AntWiki HOL

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Africa: Cameroon
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Afrotropical

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Bolton, B. & Fisher, B. L., 2011, Taxonomy of Afrotropical and West Palaearctic ants of the ponerine genus Hypoponera Santschi (Hymenoptera: Formicidae)., Zootaxa 2843, pp. 1-118

Hypoponera odiosa Bolton & FisherHNS sp. n.

(Figs 88 – 90)

WORKER (holotype in parentheses). Measurements: HL 0.58 – 0.64 (0.61), HW 0.46 – 0.49 (0.47), HS 0.520 – 0.565 (0.540), SL 0.38 – 0.44 (0.44), PrW 0.35 – 0.40 (0.36), WL 0.80 – 0.87 (0.84), HFL 0.42 – 0.47 (0.46), PeNL 0.18 – 0.22 (0.20), PeH 0.38 – 0.43 (0.42), PeNW 0.28 – 0.32 (0.30), PeS 0.287 – 0.312 (0.307) (15 measured). Indices: CI 74 – 79 (77), SI 85 – 96 (94), PeNI 75 – 84 (83), LPeI 47 – 54 (48), DPeI 143 – 158 (150).

Eyes absent or represented by a small, inconspicuous spot on side of head. Apex of scape, when laid straight back from its insertion, just fails to reach the midpoint of the posterior margin in full-face view; SL/HL 0.66 – 0.72. Cephalic dorsum sharply reticulate-punctate. Pronotal dorsum almost smooth, with spaced, minute, superficial punctures, obviously much less strongly and densely sculptured than cephalic dorsum. Metanotal groove absent from dorsum of mesosoma. Mesonotal-mesopleural suture absent or vestigially present on side of mesosoma. Propodeum weakly marginate between declivity and side. Posterior surface of petiole node without short cuticular ridges that radiate upward from the peduncle. Node of petiole in profile tall and relatively thick, with the anterior face vertical and the posterior face feebly convex and weakly converging on the anterior face dorsally; the dorsum flat or very nearly so. Posterodorsal angle of petiole node distinctly more broadly and bluntly rounded than anterodorsal angle in profile. Subpetiolar process with a distinct ventral angle. Maximum width of first gastral tergite in dorsal view greater than the width of the second gastral tergite at its midlength. Base of cinctus of second gastral tergite glossy and polished, without trace of cross-ribs. Midline length of second gastral posttergite, from posterior margin of cinctus to apex, is slightly less than the width of the segment at its midlength. Disc of second gastral tergite with sharply incised small punctures that are widely separated by areas of glossy cuticle; the diameters of the punctures are distinctly less than the distances that separate them. First and second gastral tergites dorsally pubescent and with a number of short, standing setae that conspicuously project above the level of the pubescence in profile .

Holotype worker, Cameroun: Prov. Sud, Nkolo, Bondé Forest, 27.5 km. 155° SSE Elogbatindi, 40 m., 3°13.3 ’ N, 10°14.8 ’ E, 12.iv.2000, #2323(27)-1, sifted litter (leaf mold, rotten wood) rainforest (B.L. Fisher) (CASC). Paratypes. 18 workers and 5 dealate queens, with same data as holotype and all #2323, but with individual pins coded (01)-6, (03)-3 (queen), (05)-3, (09)-2, (10)-2, (12)-2, (17)-2, (18)-2 (queen), (19)-2, (20)-2, (21)-2, (22)-3, (26)-3, (28)-5, (29)-2, (31)-4, (32)-5 (queen), (34)-5 (queen), (41)-5 (queen), (44)-4, (45)-2, (46)-3, (47)-6 (CASC, BMNH).

H. odiosaHNS is extremely close to occidentalisHNS and is mainly separated by subtle, but apparently consistent, details in the shape of the petiole node, which are noted in the key.

A single specimen recorded from Mbalmayo, below (BMNH), appears to be intermediate between occidentalisHNS and odiosaHNS in most respects, but may represent a separate sibling species. It has a fairly conspicuous sharp, black denticle at the midpoint of the anterior clypeal margin that in full-face view almost spans the width of the dorsal labrum that projects below it. In some odiosaHNS the midpoint of the clypeal margin is more sharply triangular than in others, but this character is better developed in the Mbalmayo specimen. As only a single specimen is available it is left as odiosaHNS for the present, as the shape of the petiole node corresponds more closely with that species than with occidentalisHNS, but the situation should be reviewed if more material is discovered.

Non-paratypic material examined. Cameroun: Prov. Sud, Res. de Faune de Campo, Ebodjé (B.L. Fisher); Res. Campo, Massif des Mamelles, Ebodjé (B.L. Fisher); Mbalmayo (N. Stork).

Specimen Habitat Summary

Found most commonly in these habitats: 2 times found in rainforest, 1 times found in littoral rainforest.

Found most commonly in these microhabitats: 3 times sifted litter (leaf mold, rotten wood).

Collected most commonly using these methods: 3 times MW 50 sample transect, 5m.

Elevations: collected from 10 - 180 meters, 44 meters average

Type specimens: Holotype of Hypoponera odiosa: casent0226603; paratype of Hypoponera odiosa: casent0226604, casent0226605, casent0226606, casent0226607, casent0226608, casent0226609, casent0226610, casent0226611, casent0226612, casent0226613, casent0226614, casent0226615, casent0226616, casent0226617, casent0226618, casent0226619, casent0226620, casent0226621, casent0226622, casent0226623, casent0902557



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