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Pheidole nodgii
| Pheidole nodgii | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. nodgii |
| Binomial name | |
| Pheidole nodgii Forel, 1905
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| Subspecies | |
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Nothing is known about the biology of Pheidole nodgii.
Identification
Eguchi (2001) – Pheidole magrettii is doubtless closely related to Pheidole nodgii and Pheidole tjibodana. The differences between the examined specimens of P. magrettii and the type series of the two “forms” of P. nodgii are as follows: lateral surface of occipital lobe of the major largely smooth and shining in the former, while reticulate, with enclosures punctured and dull in the latter; propodeal spine 2.5 times as long as the diameter of propodeal spiracle in the major and 1.5 times in the minor in the former, while more than 3.5 times in both the subcastes in the latter.
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Indonesia (type locality), Singapore.
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Countries Occupied
| Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Biology
Castes
Worker
Minor
Images from AntWeb
   
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| Paralectotype of Pheidole nodgii. Worker. Specimen code casent0907980. Photographer Will Ericson, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
    
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| Syntype of Pheidole nodgii. Worker. Specimen code casent0904238. Photographer Will Ericson, uploaded by California Academy of Sciences. | Owned by MSNG, Genoa, Italy. |
Major
Images from AntWeb
   
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| Lectotype of Pheidole nodgii. Worker (major/soldier). Specimen code casent0907979. Photographer Will Ericson, uploaded by California Academy of Sciences. | Owned by MHNG, Geneva, Switzerland. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- nodgii. Pheidole nodgii Forel, 1905c: 16 (s.w.q.) INDONESIA (Java). Viehmeyer, 1916a: 119 (m.). [Misspelled as noggii by Wheeler, W.M. 1930h: 63.] Current subspecies: nominal plus verlatenensis. See also: Eguchi, 2001a: 18.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Eguchi (2001) - Major (lectotype) HL 1.18 mm; HW 1.10 mm; SL 0.59 mm; FL 0.68 mm; CI 93; SI 54; FI 62. Head with almost parallel sides (Fig. 10A); posterior margin of head in full-face view concave madially; head in profile slightly concave on vertex (Fig. 10B); anteroventral margin of cranium with a large median process. Clypeus without a median longitudinal carina. Eye situated at about 1/3 distance of head (from anterior margin of clypeus to posterior margin of occipital lobe). Frontal carina horizontally flanged, extending to 2/3 distance of head (Fig. 10A). Antennal scrobe deeply excavated under frontal carina. Antenna with 3-segmented club; terminal segment ca. 1.3 times as long as preceding two segments together. Masticatory margin of mandible with apical and preapical teeth, and an indistinct denticle in front of basal angle. Promesonotum forming a dome, only with a slight prominence on its posterior declivity (Fig. 10C); dorsal portion of the dome produced laterally. Mesopleuron without a transverse impression. Propodeal spine horn-like, slightly curved apically, 4 times as long as diameter of propodeal spiracle. Petiolar node apically blunt in profile, and slightly emarginate medially in posterior view. Postpetiole and gaster missing. Frons longitudinally rugose, and interspaces almost smooth and shining; dorsal and dorsolateral faces of occipital lobe, and area between antennal scrobe and eye reticulate, with enclosures weakly punctured and dull; lateral and ventrolateral faces of occipital lobe punctured and dull; antennal scrobe punctured and dull; promesonotum weakly reticulate dorsally, with enclosures punctured and dull; lower part of mesopleuron partly smooth and shining; the remainder of alitrunk punctured and dull; anterodorsal face of petiole smooth and shining; the remainder of petiole weakly punctured and less shining.
Minor (paralectotype). Measurements: HL 0.54 mm; HW 0.50 mm; SL 0.50 mm; AL 0.68 mm; FL 0.55 mm; CI 93; 51 100; FI 110. Head in full-face view slightly concave posteriorly (Fig. 10D); occipital carina evanescent dorsally on the head. Clypeus with a weak median longitudinal carina. Eyes narrow, situated just in front of the midlength of head. Frontal carina and antennal scrobe present only around antennal insertion. Antenna with 3-segmented club; in full-face view scape slightly extending beyond posterior border of head by its 1/6 length; terminal segment ca. 1.2 times as long as preceding two segments together. Promesonotum forming a dome, without a distinct prominence on its posterior declivity (Fig. 10E); dorsal portion of the dome slightly produced laterally. Mesopleuron without any transverse impression. Propodeal spine horn-like, straight, 4 times as long as diameter of propodeal spiracle. Petiole 1.3 times as long as postpetiole (excluding helcium); petiolar node distinct, in posterior view not emarginate at apex. Postpetiole in dorsal view subhexagonal, 1.8 times as broad as petiole. Head and alitrunk punctured; petiolar pedicel very weakly punctured but shining; the remainder of petiole, and postpetiole and gaster smooth and shining.
Type Material
Eguchi (2001) - Major, minor and queen; type locality: Java. Three syntypes (1 major, 1 minor and 1 queen, Musee d'Histoire Naturelle Genève) were examined, of which the major is designated as the lectotype.
References
- Eguchi, K. 2001b. A taxonomic study on Asian Pheidole (Hymenoptera, Formicidae): new synonymy, rank changes, lectotype designations and redescriptions. Insecta Koreana. 18:1-35.
- Eguchi, K. 2003. A Study on the Male Genitalia of Some Asian Species of Pheidole (Hymenoptera, Formicidae, Myrmicinae). Sociobiology 41(2): 317-355 (page 330, figs. 15A, B male genitalia described)
- Forel, A. 1905f. Ameisen aus Java. Gesammelt von Prof. Karl Kraepelin 1904. Mitteilungen aus dem Naturhistorischen Museum in Hamburg 22: 1-26. (page 16, soldier, worker, queen described)
- Khachonpisitsak, S., Yamane, S., Sriwichai, P., Jaitrong, W. 2020. An updated checklist of the ants of Thailand (Hymenoptera, Formicidae). ZooKeys 998, 1–182 (doi:10.3897/zookeys.998.54902).
- Viehmeyer, H. 1916a [1915]. Ameisen von Singapore. Beobachtet und gesammelt von H. Overbeck. Arch. Naturgesch. (A) 81(8): 108-168 (page 119, male described)
- Wang, W.Y., Soh, E.J.Y., Yong, G.W.J., Wong, M.K.L., Benoit Guénard, Economo, E.P., Yamane, S. 2022. Remarkable diversity in a little red dot: a comprehensive checklist of known ant species in Singapore (Hymenoptera: Formicidae) with notes on ecology and taxonomy. Asian Myrmecology 15: e015006 (doi:10.20362/am.015006).
References based on Global Ant Biodiversity Informatics
- Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
- Eguchi K. 2001. A taxonomic study on Asian Pheidole (Hymenoptera, Formicidae): new synonymy, rank changes, lectotype designations and redescriptions. Insecta Koreana 18: 1-35.
- Eguchi K. 2003. A study on the male genitalia of some Asian species of Pheidole (Hymenoptera, Formicidae, Myrmicinae). Sociobiology 41: 317-355.
- Forel A. 1905. Ameisen aus Java. Gesammelt von Prof. Karl Kraepelin 1904. Mitt. Naturhist. Mus. Hambg. 22: 1-26.
- Ito, F.; Yamane, S.; Eguchi, K.; Noerdjito, W. A.; Kahono, S.; Tsuji, K.; Ohkawara, K.; Yamauchi, K.; Nishida, T.; Nakamura, K. 2001. Ant species diversity in the Bogor Botanic Garden, West Java, Indonesia, with descriptions of two new species of the genus Leptanilla (Hymenoptera, Formicidae). Tropics 10:379-404.
- Menozzi, C. 1932. Formiche dell'Isola di Nias. Misc. Zool. Sumatr. 65: 1-13