Pheidole colpigaleata
publication ID |
22171 |
DOI |
https://doi.org/10.5281/zenodo.6235622 |
persistent identifier |
https://treatment.plazi.org/id/E7BEB915-57C9-AE86-5333-3B2BF59F7EF9 |
treatment provided by |
Christiana |
scientific name |
Pheidole colpigaleata |
status |
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Pheidole colpigaleata HNS Eguchi
Figs. 2a-g
Pheidole colpigaleata HNS Eguchi, 2006: 116-118. Holotype: major, Ba Vi N.P., Ha Tay, Vietnam, Eg01-VN-222, IEBR, examined; paratypes: 11 majors, 13 minors & 1 dealate queen, same data as holotype, IEBR, MHNG,
MCZC, BMNH, FSKU & ACEG, examined.
Pheidole HNS sp. eg-113. Bui & Eguchi 2003: 9 (checklist), Eguchi et al., 2004 (ecological study), Eguchi, Bui et al. 2005: 91 (checklist).
Other material examined: N. Vietnam: Lao Cai: Y Linh Ho (a small fragment of forest), ca. 1100 m alt., Sa Pa [Eg02-VN-219]; Bac Giang: W. Yen Tu N.P. (=Tay Yen Tu N.P.), 21°11'N, 106°44'E, 195 m alt. [B&E03-04], W. Yen Tu, 21°10'N, 106°43'E, 435 m alt. [Eg04-VN-127], W. Yen Tu, 21°11'N, 106°43'E, 1070 m alt. [Eg03-VN-127, -128]; Ha Tay (mislabeled as Ha Tai): Ba Vi N.P., 21°03'N, 105°22'E, 1100-1200 m alt. [Eg99-VN-130; Eg01-VN-213; Eg02-VN-038, -039]. Eguchi's informal species code " Pheidole HNS sp. eg- 113" has been applied to these specimens.
Worker measurements & indices: Major (data from the original description). - HL 1.21-1.29 mm, HW 1.16-1.24 mm, CI 92-96, SL 0.60-0.63 mm, SI 48-53, FL 0.74-0.78 mm, FI 61-66.
Minor (data from the original description). - HL 0.53-0.58 mm, HW 0.50-0.54 mm, CI 91-95, SL 0.51- 0.56 mm, SI 98-106, FL 0.53-0.58 mm, FI 106-110.
Worker description
Major. - Head in lateral view hardly or weakly impressed on vertex; anterior part of frons longitudinally rugose; posterior part of frons, vertex and dorsal and dorsolateral faces of vertexal lobe reticulate; frontal carina well developed, partly overhanging antennal scrobe; median longitudinal carina of clypeus absent, or present but inconspicuous; median, submedian and lateral processes of hypostoma conspicuous; outer surface of mandible (excluding basal area) smooth, bearing sparse, very short appressed hairs; antenna with a 3-segmented club; maximal diameter of eye longer than antennal segment X. Promesonotal dome in dorsal view rugoso-reticulate transversely or reticulate irregularly, in lateral view lacking a conspicuous prominence or mound on its posterior slope; humerus moderately produced laterad; the dome broader at the humeri than at the bottom. Petiole (much) longer than postpetiole (excluding helcium); postpetiole not massive, in lateral view with its anteroventral part acutely produced. First gastral tergite largely smooth, but usually with a weakly sculptured area around its articulation with postpetiole.
Minor. - Dorsal and lateral faces of head largely punctured, often overlain by weak rugoso-reticulation; anteromedian part of frons (just behind frontal triangle) dimly punctured; preoccipital carina inconspicuous or very weak dorsally; median part of clypeus smooth and shining; median longitudinal carina of clypeus absent, or present but inconspicuous; antenna with a 3-segmented club; scape usually exceeding posterior margin of head by the length of antennal segment II or more; maximal diameter of eye as long as or a little longer than antennal segment X. Dorsum of promesonotal dome well punctured and often overlain by weak rugoso-reticulation, or well reticulate with enclosure weakly punctured; lateral face of the dome, mesopleuron, metapleuron and lateral face of propodeum punctured well; the dome in lateral view lacking a prominence/mound on its posterior slope; humerus of the dome in dorsal-oblique view very weakly produced laterad; propodeal spine small, elongate-triangular. Petiole longer than postpetiole (excluding helcium); postpetiole not massive, in lateral view somewhat globular.
Recognition: This species is characterized among Indo-Chinese species by the following characteristics: in the minor dorsal and lateral faces of head and mesosoma punctured; in the major hypostoma in the middle with a conspicuous median and a pair of conspicuous submedian processes; in the major frontal carina well developed horizontally; in the major and minor promesonotal dome lacking a conspicuous prominence/mound on its posterior slope. The major of P. colpigaleata HNS is very similar to that of Pheidole nodgii Forel HNS and its relatives, e.g., P. tjibodana Forel HNS , P. magrettii Emery HNS and P. retivertex Eguchi, but is well distinguished from the latter three which have hypostoma in the middle with a well-developed median process only. The major of P colpigaleata HNS is also similar to those of Pheidole rabo Forel HNS , P. zoceana Santschi HNS and P. parva Mayr HNS , but is well distinguished from the latter three which have frontal carinae almost absent or vestigial.
Distribution & bionomics: Known from N. Vietnam. This species inhabits forest from lowland to hilly areas (ca. 1200 m alt.), and nests in rotting twigs and small wood fragments. Majors serve as repletes (e.g., Eg02-VN-038, -039). Colony Eg01-VN-222 (the type series) stored many small seeds inside the nest.
MHNG |
Switzerland, Geneva, Museum d'Histoire Naturelle |
MCZC |
USA, Massachusetts, Cambridge, Harvard University, Museum of Comparative Zoology |
BMNH |
United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)] |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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