Pheidole curvistriata, Salata & Fisher, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.905.39592 |
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publication LSID |
lsid:zoobank.org:pub:F4C766E4-633A-4103-9FFD-E952718F41FB |
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persistent identifier |
https://treatment.plazi.org/id/49EB4EAC-54F3-4B53-A530-604181FFD4C2 |
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taxon LSID |
lsid:zoobank.org:act:49EB4EAC-54F3-4B53-A530-604181FFD4C2 |
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treatment provided by |
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scientific name |
Pheidole curvistriata |
| status |
sp. nov. |
Pheidole curvistriata sp. nov. Figs 52A-F View Figure 52 , 84L View Figure 84 , 86L View Figure 86
Type material.
Holotype. Madagascar. •1 major worker; Fianarantsoa; Parc National de Ranomafana, Sahamalaotra River, 6.6 km 310°NW Ranomafana; -21.23667, 47.39667; alt. 1150 m; 31 Mar 2003; B.L. Fisher et al. leg.; BLF08623, CASENT0492904, top specimen (CASC). Paratypes. Madagascar. •9 w., 8s.; same data as for holotype; CASENT0492900-CASENT0492903, CASENT0872240, CASENT0492905, CASENT0872174-CASENT0872184 (CASC).
Other material.
Madagascar. - Antsiranana: •2w., 2s., 1m.; Sava Region: Parc National de Marojejy, Manantenina River, 28.0 km 24.8°NE Andapa; -14.43461, 49.76074; alt. 780 m; 13 Feb 2018; B.L. Fisher et al. leg.; CASENT0807397-CASENT0807399 (CASC). - Fianarantsoa: •8w., 6s.; 2 km W Andrambovato, along river Tatamaly; -21.51167, 47.41; alt. 1075 m; 3 Jun 2005; B.L. Fisher et al. leg.; CASENT0060845, CASENT0060847, CASENT0060859, CASENT0060861, CASENT0060936, CASENT0060937, CASENT0060940, CASENT0060941 (CASC). •2w., 2s.; Ambinanindranomena Non-Protected Area, 39.45 km SE Ambalavao; -21.95386, 47.29427; alt. 1069 m; 1 Feb 2012; Andrianjaka & Ravelomanana leg.; CASENT0293938, CASENT0293939 (CASC). •1w.; Parc National de Ranomafana, Sahamalaotra River, 6.6 km 310°NW Ranomafana; -21.23667, 47.39667; alt. 1150 m; 31 Mar 2003; B.L. Fisher et al. leg.; CASENT0492823 (CASC). •12w., 10s.; Parc National de Ranomafana, Vatoharanana River, 4.1 km 231°SW Ranomafana; -21.29, 47.43333; alt. 1100 m; 27 Mar 2003; B.L. Fisher et al. leg.; CASENT0040349, CASENT0497398, CASENT0497453, CASENT0497454, CASENT0497614, CASENT0497616, CASENT0497627, CASENT0497629 (CASC). - Toamasina: •3w., 1m.; Ankerana; -18.40829, 48.82107; alt. 750 m; 23 Jan 2012; B.L. Fisher et al. leg.; CASENT0274813, CASENT0274814 (CASC). •2w., 2s.; Corridor Forestier Analamay-Mantadia, Ambatoharanana; -18.80388, 48.40506; alt. 1013 m; 12 Dec 2012; B.L. Fisher et al. leg.; CASENT0300845, CASENT0301767 (CASC). •4w., 3s., 1q.; Corridor Forestier Analamay-Mantadia, Tsaravoniana; -18.76124, 48.42134; alt. 939 m; 3 Dec 2012; B.L. Fisher et al. leg.; CASENT0297031, CASENT0297032, CASENT0297063, CASENT0297075 (CASC). •2s.; F.C. Andriantantely; -18.695, 48.81333; alt. 530 m; 4 Dec 1998; Ratsirarson leg.; CASENT0198897 (CASC). - Toliara: •1s.; Parc National d’Andohahela, Col du Sedro, 3.8 km 113°ESE Mahamavo, 37.6 km 341°NNW Tolagnaro; -24.76389, 46.75167; alt. 900 m; 21 Jan 2002; B.L. Fisher et al. leg.; CASENT0479331 (CASC).
Diagnosis.
Major workers. Head in full face view rectangular, slightly widening posteriorly; sides of the head with dense, relatively long, erect pilosity; frons with fine, irregularly rugoreticulate, interspaces finely foveolate; inner hypostomal teeth distinct, moderately high, thick and triangular, with rounded apex; outer hypostomal teeth thinner but higher, with rounded tips, and wide base; inner and outer teeth closely spaced and connected by indistinct concavity; propodeal spines moderately long, narrow, with base slightly wider than top; first gastral tergite finely shagreened. Minor workers. Whole head foveolate, thick, sparse and longitudinal rugae overlie foveolate sculpture on frons and malar area; sparse, irregular to arcuate, thick rugae overlie foveolate sculpture on vertex; promesonotum low, short, flat or slightly convex, with steep posterior declivity; mesosoma foveolate, with sparse, thick, and irregular rugae overlying foveolae, katepisternum smooth.
Description.
Major workers. Measurements (N = 10): HL: 1.62-1.73 (1.67); HW: 1.49-1.64 (1.57); SL: 0.66-0.73 (0.69); EL: 0.17-0.2 (0.18); WL: 1.15-1.26 (1.18); PSL: 0.23-0.27 (0.25); MTL: 0.68-0.73 (0.7); PNW: 0.67-0.79 (0.73); PTW: 0.19-0.22 (0.21); PPW: 0.61-0.7 (0.65); CI: 91.6-95.7 (94.1); SI: 41.1-45.7 (43.8); PSLI: 13.8-15.8 (14.9); PPI: 29.1-34.7 (31.8); PNI: 44.7-48.7 (46.3); MTI: 42.7-45.7 (44.6). Head. In full-face view rectangular, slightly widening posteriorly, anterior of eyes relatively straight, posterior of eyes convex (Fig. 52B View Figure 52 ). In lateral view sub-rectangular; ventral and dorsal faces finely convex; dorsal face finely depressed posteriorly, forming indistinct transverse depression between frons and occipital lobes; inner hypostomal teeth invisible. Sides of the head with dense, relatively long, erect pilosity; whole head with dense, moderately long, suberect to erect pilosity. Antennal scrobes indistinct and not delimited by carinulae. Occipital lobes shiny, with thick, sparse, irregular rugae, interspaces superficially rugulae; frons with thick, sparse, longitudinal rugae, interspaces smooth to indistinctly rugulose; lateral sides of head with fine, irregularly rugoreticulate, interspaces finely foveolate; malar area with dense and thin longitudinal or irregular rugulae; genae with fine, thin, moderately dense to dense rugulae. Clypeus shiny and smooth, with thin, longitudinal rugulae on lateral sides; median notch present, narrow and moderately deep; median longitudinal carina absent; lateral longitudinal carinae absent. Scape, when laid back, reaching midlength of head; pilosity decumbent to erect (Fig. 52B, D View Figure 52 ). Inner hypostomal teeth distinct, moderately high, thick, and triangular, with rounded apex; outer hypostomal teeth thinner but higher, with rounded tips, and wide base; inner and outer teeth closely spaced and connected by indistinct concavity (Fig. 84L View Figure 84 ). Mesosoma. In lateral view, promesonotum short, angular, and relatively low, posterior mesonotum steep, with small tubercle-like projections; promesonotal groove absent; metanotal groove absent or indistinct; propodeal spines moderately long, narrow, with base slightly wider than top, apex rounded; humeral area with small and flat tubercles (Fig. 52D View Figure 52 ). Surface shiny, finely rugoreticulate, katepisternum and lower anepisternum smooth, lateral sides of propodeum with few thick, longitudinal rugae. Pilosity moderately sparse, long, and erect (Fig. 52D, F View Figure 52 ). Petiole. Shiny, finely foveolate; peduncle short, with small, rounded, horizontal lobes on its basal part; node moderately high and narrow, with convex apex, in rear view node relatively straight; pilosity moderately dense and erect (Fig. 52D, F View Figure 52 ). Postpetiole. Shiny, with fine and sparse foveolae; short and rounded; in dorsal view sides with relatively long, triangular projections; pilosity long, moderately dense, and erect (Fig. 52D, F View Figure 52 ). Petiole. First gastral tergite shiny and finely shagreened; pilosity dense, moderately long, and erect (Fig. 52D, F View Figure 52 ). Colour. Unicolourous, brown; legs dark yellow (Fig. 52D, F View Figure 52 ).
Minor workers. Measurements (N = 10): HL: 0.62-0.68 (0.66); HW: 0.53-0.63 (0.6); SL: 0.6-0.67 (0.64); EL: 0.1-0.13 (0.12); WL: 0.74-0.84 (0. 8); PSL: 0.12-0.13 (0.12); MTL: 0.49-0.55 (0.52); PNW: 0.38-0.44 (0.42); PTW: 0.07-0.09 (0.08); PPW: 0.13-0.19 (0.15); CI: 86.1-94.5 (90.6); SI: 105.5-112.8 (108.6); PSLI: 17.8-19.2 (18.6); PPI: 47.8-56.5 (52.2); PNI: 68.9-72.7 (70.8); MTI: 85.6-91.9 (87.6). Head. Occipital margin straight or indistinctly concave; occipital carina indistinct, weakly developed (Fig. 52A View Figure 52 ). Pilosity moderately dense, long, erect. Whole head foveolate, thick, sparse and longitudinal rugae overlie foveolate sculpture on frons and malar area; sparse, irregular to arcuate, thick rugae overlie foveolate sculpture on vertex. Clypeus shiny, foveolate to rugae; median longitudinal carina present; two lateral longitudinal carinae absent. Scape, when laid back, surpassing the posterior head margin by two-fifths of its length; pilosity erect (Fig. 52A, C View Figure 52 ). Mesosoma. In lateral view, promesonotum low, short, flat or slightly convex, with steep posterior declivity; promesonotal groove absent; metanotal groove absent or indistinct; propodeal spines short, triangular, apex acute (Fig. 52C View Figure 52 ). Sculpture foveolate, with sparse, thick, and irregular rugae overlying foveolae, katepisternum smooth. Pilosity moderately sparse, long, and erect (Fig. 52C, E View Figure 52 ). Petiole. Peduncle moderately short and thin; with few long, erect setae (Fig. 52C, E View Figure 52 ). Postpetiole. Short, low, and slightly convex; with few short, erect setae (Fig. 52C, E View Figure 52 ). Petiole. With sparse, erect pilosity (Fig. 52C, E View Figure 52 ). Colour. Unicolourous, yellowish brown to brown (Fig. 52C, E View Figure 52 ).
Etymology.
Latin for arcuate rugae, in reference to head sculpture in minor workers.
Biology.
The species was collected between 530-1150 m in elevation, in rainforest and montane rainforest. Nests were located in rotten logs, twigs, and stumps.
Comments.
Pheidole curvistriata sp. nov. is most similar to P. mantadia sp. nov. and P. moramanaensis sp. nov. Major workers. Pheidole curvistriata sp. nov. can be distinguished from P. mantadia sp. nov. and P. moramanaensis sp. nov. by absence of fine foveolae sculpture on frons, moderately high and thick inner hypostomal teeth, which are higher than wide, and thin, high, outer hypostomal teeth. Minor workers. Pheidole curvistriata sp. nov. can be distinguished from P. mantadia sp. nov. and P. moramanaensis sp. nov. by frons and malar area with distinct, longitudinal rugae, vertex with indistinct irregular to arcuate rugae, presence of irregular rugae on mesosoma, and never smooth mesonotum.
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