Pheidole pieli

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Pheidole pieli
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. pieli
Binomial name
Pheidole pieli
Santschi, 1925

MCZ-ENT00020669 Pheidole rinae subsp incensa hal.jpg MCZ-ENT00020669 Pheidole rinae subsp incensa had.jpg Type Label

Synonyms

Eguchi (2008) - Indo-Chinese populations usually occur in forest edges and patches with poorly developed vegetation than in well-developed forests, and nest in the soil. On the other hand, Japanese populations usually occur in relatively developed forests, and nest in wood fragments on the ground as well as in the soil (Eguchi et al. 2004, Eguchi, Yamane & Zhou 2005). According to Eguchi (2004b) workers gather and feed on seeds of sesame and amaranthus put on the ground in S. Japan. Majors serve as repletes (Handa 1992).

Identification

Eguchi (2008) - This species is characterized among Indo-Chinese species by the combination of the following features: in the major frontal carina inconspicuous, present just as rugula(e); in the major hypostoma in the middle with 3 processes (median process rarely inconspicuous or absent); in the minor preoccipital carina absent or evanescent dorsally; in the minor promesonotal dome smooth and shining, often with weak transverse rugula(e); in the major and minor posterior slope of promesonotal dome without a conspicuous prominence/mound; in the minor propodeal spine usually reduced to a tiny dent.

P. pieli is most similar to Pheidole laevicolor and Pheidole taipoana among Indo-Chinese species, but the minor of the latter two has rather developed propodeal spines and rather gentle posterior slope of promesonotal dome. Head in lateral view is more strongly concave on vertex in the major of P. taipoana than in that of P. pieli.

Keys including this Species

Distribution

Known from N. Vietnam, S. Japan, China and Thailand.

Distribution based on Regional Taxon Lists

Oriental Region: Thailand, Vietnam.
Palaearctic Region: China (type locality), Democratic Peoples Republic of Korea, Japan, Republic of Korea.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • pieli. Pheidole pieli Santschi, 1925f: 83 (s.w.) CHINA. Ogata, 1982: 195 (m.). Senior synonym of incensa: Eguchi, Yamane & Zhou, 2007: 265. See also: Wu & Wang, 1995: 100.
  • incensa. Pheidole rinae subsp. incensa Wheeler, W.M. 1928c: 13 (s.w.) CHINA. Junior synonym of pieli: Eguchi, Yamane & Zhou, 2007: 265.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Eguchi (2008) - Major (data from Eguchi, Yamane & Zhou 2007). — HL 0.79–1.03 mm; HW 0.69–0.97 mm; CI 85–96; SL 0.35–0.48 mm; SI 46–51; FL 0.44–0.60 mm; FI 59–66. Minor (data from Eguchi, Yamane & Zhou 2007). — HL 0.38–0.47 mm; HW 0.33–0.43 mm; CI 85–92; SL 0.31–0.42 mm; SI 89–108; FL 0.32–0.44 mm; FI 92–111.

Major — Head in lateral view hardly or weakly (rarely strongly) impressed on vertex; frons longitudinally rugose; vertex and dorsal and dorsolateral faces of vertexal lobe reticulate, rugoso-reticulate or obliquely rugose, or rarely sculptured dimly; frontal carina inconspicuous, present just as rugula(e); antennal scrobe absent or inconspicuous; median longitudinal carina on clypeus absent or evanescent, or sometimes present but very weak; median process of hypostoma usually conspicuous, but rarely inconspicuous or almost absent; submedian and lateral processes always conspicuous; antenna with a 3-segmented club; maximal diameter of eye (a little) longer than antennal segment X. Promesonotal dome smooth and shining, sparsely sculptured with transverse or irregular rugulae, in lateral view at most with an inconspicuous mound on its posterior slope; humerus of the dome weakly or sometimes very weakly produced laterad; the dome at the humeri almost as broad as or a little broader than at the bottom (rarely a little narrower than at the bottom). Petiole (much) longer than postpetiole (excluding helcium); postpetiole not massive. First gastral tergite usually smooth, excluding weakly rugoso-punctate area around its articulation with postpetiole, but rarely shagreened entirely.

Minor — Frons largely smooth and shining, or rarely shagreened with weak rugulae; vertex and dorsolateral face of head almost smooth, or very weakly rugoso-reticulate or rugoso-punctate; preoccipital carina absent or evanescent dorsally; median part of clypeus smooth and shining; the median longitudinal carina absent, or rarely present but very weak; antenna with a 3-segmented club; scape not reaching or exceeding the posterior margin of head by at most the length of second antennal segment; maximal diameter of eye (a little) longer than antennal segment X (rarely as long as antennal segment X). Promesonotal dome smooth and shining, often with weak transverse rugula(e) on its anterior slope, in lateral view without a mound on its relatively steep posterior slope; humerus of the dome in dorso-oblique view not or hardly produced; mesopleuron, metapleuron and lateral face of propodeum usually almost smooth, but sometimes weakly punctured; propodeal spine usually reduced to a tiny dent. Petiole much longer than postpetiole (excluding helcium); postpetiole not massive.

Type Material

Eguchi (2008):

Syntypes: 2 majors & 9 minors, “Zo-Se 27-7-24” [Zo-Ce, China], Naturhistorisches Museum Basel, examined.

Pheidole rinae subsp. incensa. Syntypes: 3 majors & 3 minors, “Peta, Foochow, Silvestri” [Foochow, China], Museum of Comparative Zoology cotype- 20669, examined.

References

  • Eguchi, K. 2008. A revision of Northern Vietnamese species of the ant genus Pheidole (Insecta: Hymenoptera: Formicidae: Myrmicinae). Zootaxa. 1902:1-118. PDF
  • Ogata, K. 1982. Taxonomic study of the ant genus Pheidole Westwood of Japan, with a description of a new species (Hymenoptera, Formicidae). Kontyû 50: 189-197 (page 195, male described)
  • Santschi, F. 1925f. Contribution à la faune myrmécologique de la Chine. Bull. Soc. Vaudoise Sci. Nat. 56: 81-96 (page 83, soldier, worker described)
  • Wu, J.; Wang, C. 1995. The ants of China. Beijing: China Forestry Publishing House, x + 214 pp. (page 100, see also)