Pheidole vieti

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Pheidole vieti
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. vieti
Binomial name
Pheidole vieti
Eguchi, 2008

Pheidole vieti casent0911222 p 1 high.jpg

Pheidole vieti casent0911222 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of Pheidole vieti.

Identification

Eguchi (2008) - This species has the following combination of diagnostic characteristics: in the major head in lateral view not impressed on vertex; in the minor head and promesonotal dome largely smooth and shining; in the major dorsum of vertexal lobe shagreened or only very weakly rugoso-punctate; in the major frontal carina inconspicuous, present just as rugula(e), and antennal scrobe almost absent; in the major submedian processes of hypostoma conspicuous; eye relatively reduced, consisting of ca. 13–19 ommatidia in the major and 8–12 ommatidia in the minor; in the major and minor promesonotal dome without a mound on its posterior slope; in the major and minor humerus of promesonotal dome not produced laterad; in the major and minor postpetiole relatively massive.

This species is similar to Pheidole vulgaris Eguchi, but head is shorter but higher and postpetiole is more massive in the major of the former than in that of the latter.

Keys including this Species

Distribution

Known only from N. Vietnam.

Distribution based on Regional Taxon Lists

Oriental Region: Vietnam (type locality).
Palaearctic Region: China.

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.

  • vieti. Pheidole vieti Eguchi, 2008: 100, figs. 28a-h (s.w.) VIETNAM.

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

Description

Worker

Holotype (major). — HL 1.21 mm; HW 1.16 mm; CI 95; SL 0.62 mm; SI 54; FL 0.81 mm; FI 70. Nontype major (n=1). — HL 1.22 mm; HW 1.17 mm; CI 96; SL 0.60 mm; SI 51; FL 0.79 mm; FI 68. Minor (n=3, including one paratype minor). — HL 0.59–0.64 mm; HW 0.55–0.60 mm; CI 92–94; SL 0.59–0.61 mm; SI 103–109; FL 0.63–0.68 mm; FI 114–117.

Major — Body yellowish brown. Head in lateral view not impressed on vertex; frons and anterior part of vertex rugose longitudinally; posterior part of vertex sparsely and interruptedly sculptured with longitudinal rugulae; dorsum of vertexal lobe shagreened or only very weakly rugoso-punctate; frontal carina inconspicuous, present just as rugula(e); antennal scrobe almost absent; clypeus without a median longitudinal carina; median prosess of hypostoma variable in its development, conspicuous (nontype major) or completely absent (the holotype); submedian and lateral processes conspicuous; antenna with a 3-segmented club; eye consisting of less than 20 ommatidia; maximal diameter of eye shorter than antennal segment X. Promesonotal dome smooth and shining, in lateral view lacking a mound on its posterior slope; humerus of the dome not produced; the dome at the humeri much narrower than at the bottom; mesopleuron weakly punctured largely; lateral face of propodeum almost smooth; metapleuron with several rugulae. Petiole a little longer than postpetiole (excluding helcium); postpetiole relatively massive. First gastral tergite smooth and shining excluding very weakly punctured area around its articulation with postpetiole.

Minor — Body yellowish brown. Frons and vertex smooth; dorsolateral part of head partly to largely rugoso-punctate weakly or dimly; preoccipital carina complete but weak dorsally; median part of clypeus smooth and shining; the median longitudinal carina absent, or present at most anteriorly; antenna with a 3-segmented club; scape exceeding posterior margin of head by 1.5 times the length of antennal segment II or more; eye consisting of only ca. 8–12 ommatidia; maximal diameter of eye shorter than antennal segment X. Promesonotal dome largely smooth and shining, in lateral view lacking a mound on its posterior slope; humerus of the dome in dorso-oblique view not produced; mesopleuron punctured; metapleuron and lateral face of propodeum very weakly punctured or almost smooth; propodeal spine elongate-triangular. Petiole almost as long as or only a little longer than postpetiole (excluding helcium); postpetiole relatively massive.

Type Material

Holotype: major, Ba Vi N.P., 400–600 m alt., Ha Tay (misspelled as “Ha Tai”), Vietnam [K. Eguchi leg., colony: Eg99-VN-092] (Entomological Collection of the Institute of Ecology and Biological Resources), examined; paratypes: 5 minors from the same colony as holotype (IEBR, Museum of Comparative Zoology, Musee d'Histoire Naturelle Genève & Katsuyuki Eguchi), 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