Pheidole mantadia
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Ordo: Hymenoptera
Familia: Formicidae
Genus: Pheidole
Name
Pheidole mantadia Salata & Fisher, 2020 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype. Madagascar. •1 major worker; Toamasina; Corridor Forestier Analamay-Mantadia, Tsaravoniana; -18.76124, 48.42134; alt. 939 m; 3 Dec 2012; B.L. Fisher et al. leg.; BLF30003, CASENT0297006 (CASC). Paratype. Madagascar. •1 w.; same data as for holotype; CASENT0923169 (CASC).
Diagnosis
Major workers. Head in full face view rectangular, slightly widening posteriorly; sides of the head with sparse, relatively short, erect pilosity; frons with thick, sparse, longitudinal rugae, interspaces smooth to indistinctly rugulose; inner hypostomal teeth distinct, low, thick, bulge-like, with rounded apex; outer hypostomal teeth higher, thick, with rounded tips, triangular; inner and outer teeth closely spaced and connected by indistinct concavity; propodeal spines moderately long, with base slightly wider than top; first gastral tergite shagreened. Minor workers. Whole head foveolate, frons and malar area with few additional, indistinct, longitudinal rugae, vertex with indistinct irregular rugae, genae with sculpture reduced to absent; promesonotum low, slightly convex, with steep posterior declivity; mesosoma foveolate, katepisternum, and mesonotum smooth.
Description
Major workers. Measurements (N = 1): HL: 1.68; HW: 1.52; SL: 0.67; EL: 0.17; WL: 1.21; PSL: 0.24; MTL: 0.68; PNW: 0.7; PTW: 0.2; PPW: 0.61; CI: 90.5; SI: 43.9; PSLI: 14.5; PPI: 33.9; PNI: 46.1; MTI: 44.7. Head. In full-face view rectangular, slightly widening posteriorly, anterior of eyes relatively straight, posterior of eyes convex (Fig. 55B). 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. Antennal scrobes indistinct and not delimited by carinulae. Sides of the head with sparse, relatively short, erect pilosity; whole head with dense, moderately long, suberect to erect pilosity. Occipital lobes shiny, with thick, sparse, irregular rugae, interspaces smooth to finely rugulose; frons with thick, sparse, longitudinal rugae, interspaces smooth to indistinctly rugulose; lateral sides of head with fine and sparse rugulae, area between rugulae finely foveolate; malar area with dense and thin longitudinal rugae, interspaces smooth; genae with fine, thin, and dense rugulae. Clypeus shiny and smooth, with thin, longitudinal rugulae on lateral sides; median notch present, narrow, and moderately deep; median longitudinal carina indistinct; lateral longitudinal carinae absent. Scape, when laid back, reaching the midlength of head; pilosity decumbent to erect (Fig. 55B, D). Inner hypostomal teeth distinct, low, thick, bulge-like, with rounded apex; outer hypostomal teeth higher, thick, with rounded tips, triangular (Fig. 85G). 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, with base slightly wider than top, apex rounded; humeral area with small and flat tubercles (Fig. 55D). Surface shiny, finely foveolate, katepisternum, anepisternum, and lateral surfaces of propodeum smooth, with few irregular, thick rugae. Pilosity moderately sparse, long, and erect (Fig. 55D, F). 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 sparse and erect (Fig. 55D, F). Postpetiole. Shiny, with fine and sparse foveolae; short and rounded; in dorsal view sides with relatively long, acute, horn-like projections; pilosity long, moderately dense and erect (Fig. 55D, F). Petiole. First gastral tergite shiny and shagreened; pilosity moderately dense, long, and erect (Fig. 55D, F). Colour. Unicolourous, reddish brown to brown; legs yellow to brown (Fig. 55D, F). Minor workers. Measurements (N = 1): HL: 0.58; HW: 0.52; SL: 0.6; EL: 0.11; WL: 0.7; PSL: 0.1; MTL: 0.48; PNW: 0.37; PTW: 0.07; PPW: 0. 1; CI: 89.2; SI: 115.7; PSLI: 17.0; PPI: 64.4; PNI: 71.4; MTI: 91.7. Head. Occipital margin straight or indistinctly concave; occipital carina indistinct, weakly developed (Fig. 55A). Pilosity moderately sparse, long, and erect. Whole head foveolate, frons and malar area with few additional, indistinct, longitudinal rugae, vertex with indistinct irregular rugae, genae with sculpture reduced to absent. Clypeus shiny, foveolate to rugoreticulate; 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. 55A, C). Mesosoma. In lateral view, promesonotum low, slightly convex, with steep posterior declivity; promesonotal groove absent; metanotal groove indistinct; propodeal spines short, triangular, apex acute (Fig. 55C). Sculpture foveolate, katepisternum and mesonotum smooth. Pilosity sparse, long, and erect (Fig. 55C, E). Petiole. Peduncle moderately long and thin; node low, globular, and small; with few long, erect setae (Fig. 55C, E). Postpetiole. Short, low, and convex; with few short, erect setae (Fig. 55C, E). Petiole. With sparse, erect pilosity (Fig. 55C, E). Colour. Unicolourous, yellowish brown to brown (Fig. 55C, E).
Etymology
From the type locality.
Biology
The species was collected at 939 m in elevation, in rainforest. Nest was located in rotten log.
Comments
Pheidole mantadia sp. nov. is most similar to P. curvistriata sp. nov. and P. moramanaensis sp. nov. Major workers.''Pheidole mantadia sp. nov. can be distinguished from P. curvistriata sp. nov. by presence of fine foveolate sculpture on frons and mesosoma, low and thick inner hypostomal teeth, which are wider than high and thick, high outer hypostomal teeth; from P. moramanaensis sp. nov. by sparser and shorter pilosity on sides of head. Minor workers.Pheidole mantadia sp. nov. can be distinguished from P. curvistriata sp. nov. by frons and malar with indistinct, longitudinal rugae, and vertex with indistinct irregular and never arcuate rugae, absence of irregular rugae on mesosoma, and smooth mesonotum; from P. moramanaensis sp. nov. by frons and malar area with indistinct, longitudinal rugae, and never smooth clypeus.
Original Description
- Salata, S; Fisher, B; 2020: Pheidole Westwood, 1839 (Hymenoptera, Formicidae) of Madagascar – an introduction and a taxonomic revision of eleven species groups ZooKeys, 905: 1-235. doi
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