Pheidole anosyenne, Salata & Fisher, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.949.51269 |
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publication LSID |
lsid:zoobank.org:pub:93BFA448-BB73-43CD-BC4E-A86090DA63D5 |
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persistent identifier |
https://treatment.plazi.org/id/F6512E6B-6D15-48AB-A3E7-05878764E0EF |
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taxon LSID |
lsid:zoobank.org:act:F6512E6B-6D15-48AB-A3E7-05878764E0EF |
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treatment provided by |
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scientific name |
Pheidole anosyenne |
| status |
sp. nov. |
Pheidole anosyenne sp. nov. Figs 24A-F View Figure 24 , 63F View Figure 63 , 65F View Figure 65
Type material.
Holotype. Madagascar. • 1 major worker; Toliara; Anosy Region, Anosyenne Mts, 31.2 km NW Manantenina; -24.13894, 47.06804; 1125 m; 26 Feb 2015; B. L. Fisher et al. leg.; rainforest, ex rotten log; BLF36544; CASENT0923297 (CASC). Paratype. • 1w.; same data as for holotype; CASENT0704255 (CASC).
Diagnosis.
Moderately large species. Major workers. Head in full-face view sub-oval and slightly widening posteriorly, with anterior and posterior sides slightly convex, in lateral view sub-oval; ventral and dorsal faces convex; sides of the head with moderately dense, short, decumbent to subdecumbent pilosity; anteromedial part of frons with moderately dense and thick, longitudinal rugae, posteromedial part with irregular rugae, interspaces with sparse and distinct rugofoveolae; occipital lobes, and area posterolateral from eyes without smooth notches; scape, when laid back, exceeding the midlength of head by approximately one-fifth of its length; inner hypostomal teeth distinct, moderate, closely spaced, triangular, with rounded apex and relatively narrow base; outer hypostomal teeth lobe-like, wider, and higher than inner hypostomal teeth, apex directed forward; inner and outer hypostomal teeth closely spaced and connected by indistinct concavity; mesosoma with fine rugofoveolae, dorsal and lateral sides of pronotum with additional transverse and thin rugae; gaster smooth; body ochreous. Minor workers. Head foveolate with additional indistinct longitudinal rugulae on medial frons, area posterolateral from eyes with reduced sculpture; scape, when laid back, surpassing the posterior head margin by two-fifths of its length; promesonotum moderately high and long, arched; promesonotal groove present; propodeal spines very small, triangular; mesosomal dorsum rugofoveolate; lateral sides of pronotum foveolate, anepisternum and katepisternum smooth, lateral sides of propodeum with smooth notches; body dark orange.
Description.
Major workers. Measurements (N = 1): HL: 1.13; HW: 1.18; SL: 0.69; EL: 0.14; WL: 1.0; PSL: 0.17; MTL: 0.63; PNW: 0.52; PTW: 0.14; PPW: 0.34; CI: 96.0; SI: 58.3; PSLI: 14.8; PPI: 40.2; PNI: 44.0; MTI: 53.2.
Head. In full-face view sub-oval, widening posteriorly, with anterior and posterior sides convex (Fig. 24B View Figure 24 ). In lateral view sub-oval; ventral and dorsal faces convex; inner hypostomal teeth visible. Sides of the head with moderately dense, short, decumbent to subdecumbent pilosity; whole head with relatively dense, short, decumbent to erect pilosity. Anteromedial part of frons with moderately dense and thick, longitudinal rugae, posteromedial part with irregular rugae, interspaces with sparse and distinct rugofoveolae; lateral sides with irregular and thick rugae with distinctly rugofoveolate interspaces. Occipital lobes with thick, sparse, irregular rugae, interspaces smooth or with fine, indistinct rugulae. Gena with sparse and thick, longitudinal rugae and indistinctly rugofoveolate interspaces. Area posterolateral from eyes with dense and thin rugofoveolae. Centre of clypeus smooth and shiny, lateral sides with indistinct rugulae; median notch present, wide, and shallow; median longitudinal carina present; lateral longitudinal carinae absent. Scape, when laid back, exceeding the midlength of head by approximately one-fifth of its length; pilosity decumbent to suberect (Fig. 24B, D View Figure 24 ). Inner hypostomal teeth distinct, moderate, closely spaced, triangular, with rounded apex and relatively narrow base; outer hypostomal teeth lobe-like, wider and higher than inner hypostomal teeth, apex directed forward; inner and outer hypostomal teeth closely spaced and connected by indistinct concavity (Fig. 63F View Figure 63 ). Mesosoma. In lateral view, promesonotum short, angular, and moderately high, posterior mesonotum moderately steep, mesonotal process indistinct, tubercle-like; promesonotal groove absent; metanotal groove absent; propodeal spines moderate, relatively wide, with acute apex; humeral area laterally weakly produced (Fig. 24D View Figure 24 ). Surface shiny with fine rugofoveolae, dorsal and lateral sides of pronotum with additional transverse and thin rugae. Pilosity relatively dense, long, and erect (Fig. 24D, F View Figure 24 ). Petiole. Shiny with fine and dense foveolae; node foveolate, low, triangular, with rounded and thin apex, in rear view node dorsoventrally convex; pilosity moderately sparse and erect (Fig. 24D, F View Figure 24 ). Postpetiole. Shiny, with fine and sparse rugofoveolae; in dorsal view postpetiole oval, lateral margins medially with two dentate projections; pilosity long, moderately sparse, and erect (Fig. 24D, F View Figure 24 ). Gaster. Shiny and smooth; pilosity moderately dense, long, and erect (Fig. 24D, F View Figure 24 ). Colour. Ochreous; legs dark yellow, gaster and mandibles brown (Fig. 24D, F View Figure 24 ).
Minor workers. Measurements (N = 1): HL: 0.55; HW: 0.49; SL: 0.62; EL: 0.11; WL: 0.72; PSL: 0.07; MTL: 0.47; PNW: 0.34; PTW: 0.07; PPW: 0.13; CI: 113.8; SI: 126.7; PSLI: 12.8; PPI: 54.3; PNI: 70.4; MTI: 96.5.
Head. Cephalic margin indistinctly convex (Fig. 24A View Figure 24 ). Pilosity relatively sparse, long, decumbent to subdecumbent. Head foveolate with additional indistinct longitudinal rugulae on medial frons, area posterolateral from eyes with reduced sculpture; antennal sockets with few thick, curved outward rugae and foveolate interspaces. Clypeus with median longitudinal carina absent; two lateral longitudinal carinae absent. Scape, when laid back, surpassing the posterior head margin by two-fifths of its length; pilosity dense, subdecumbent to erect (Fig. 24A, C View Figure 24 ). Mesosoma. In lateral view, promesonotum moderately high and long, arched; promesonotal groove present but indistinct; metanotal groove present and distinct; propodeal spines very small, triangular (Fig. 24C View Figure 24 ). Mesosomal dorsum rugofoveolate; lateral sides of pronotum foveolate, anepisternum and katepisternum smooth, lateral sides of propodeum with smooth notches. Pilosity sparse, moderately long, and erect (Fig. 24C, E View Figure 24 ). Petiole. Peduncle with ventral face relatively straight (Fig. 24C, E View Figure 24 ). Gaster. With sparse, erect pilosity (Fig. 24C, E View Figure 24 ). Colour. Dark orange (Fig. 24C, E View Figure 24 ).
Etymology.
From the type locality.
Biology.
The species was collected at 1125 m in elevation, in rainforest. Nest was located in rotten log.
Comments.
Pheidole anosyenne sp. nov., described from Anosyenne Mts. in Toliara, has major workers with dense and thick rugae that are anteromedially longitudinal and posteromedially irregular with sparsely and distinctly rugofoveolate interspaces, and ferruginous body colouration. Most similar are P. joffreville sp. nov. and P. mivory sp. nov., known from remote localities in Antsiranana. Major workers of P. anosyenne sp. nov. can be easily separated from both of those taxa based on sparse to moderately sparse, moderately long to long, decumbent to erect pilosity on sides of head, brighter body colouration and presence of smooth notches on lateral sides of pronotum and katepisternum; minor workers differ from P. joffreville sp. nov. in brighter body colouration, presence of smooth notches on lateral sides of propodeum, and entirely smooth anepisternum and katepisternum, from P. mivory sp. nov. in foveolate mesosomal dorsum, brighter body colouration, and less developed propodeal spines.
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