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Brachyponera troglomorpha
| Brachyponera troglomorpha | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Ponerinae |
| Tribe: | Ponerini |
| Genus: | Brachyponera |
| Species: | B. troglomorpha |
| Binomial name | |
| Brachyponera troglomorpha Duanchay & Jaitrong, 2024 | |
This species was collected from a cave in northern Thailand. The workers were working on the ground at dark zone of the cave.
| At a Glance | • Cave-Subterranean |
Photo Gallery
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Identification
Brachyponera troglomorpha is most similar to Brachyponera kumtongi in having a reddish-brown body and a dome-like promesonotum when seen in profile. See B. kumtongi for details.
This species is also similar to Brachyponera jerdonii and Brachyponera arcuata in general appearance that they share the large eye (with over 7 ommatidia along longest axis) and reddish-brown body. However, it can be distinguished from the latter two by propodeal dorsum almost straight, shorter than length of propodeal declivity (weakly to distinctly convex, almost as long as or longer than length of propodeal declivity in the latter two). The eye of B. troglomorpha is smaller than that of B. jerdonii (with 7–8 ommatidia along longest axis in B. troglomorpha; ca. 9–10 ommatidia along longest axis in B. jerdonii).
It is easily distinguished from B. arcuata by:
- head, pronotum, and gastral tergite with short erect hairs (clearly absent in B. arcuata)
- frontal carina relatively long, reaching anterior to medlength of head (short, reaching level posterior margin of eye in B. arcuata)
- body colour paler (darker in B. arcuata, see Figs. 2A and 3L for comparison)
Duanchay et al. (2024), Fig 3. Brachyponera spp., workers. A, L – Brachyponera arcuata (holotype, CASENT 0915248); B – B. kumtongi (holotype, THNHM-I-00029078); C, G – B. troglomorpha (holotype, THNHM-I-00029190); D – B. luteipes (holotype, CASENT0915672); E – B. chinensis (holotype, CASENT0902494); F, K – B. nigrita (holotype, CASENT0903936); H, I – B. luteipes (holotype, CASENT0915672); J – B. chinensis (holotype, CASENT0902494). A, I, L – body in profile; B, C, D, E, F – eye in profile; G, H – head in full-face view, showing posterior margin; J, K – gaster in profile, showing condition of erect hairs.
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Keys including this Species
Distribution
Nan Province, Thailand (Fig. 4).
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Latitudinal Distribution Pattern
Latitudinal Range: 18.3° to 18.3°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: Duanchay et al., 2024
Distribution based on Regional Taxon Lists
Oriental Region: Thailand (type locality).
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
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- troglomorpha. Brachyponera troglomorpha Duanchay & Jaitrong, in Duanchay et al., 2024: 7, figs. 2, 3C, 4 (w.) THAILAND.
Type Material
- Holotype – worker (THNHM-I-00029190, THNHM), Thailand: Nan Province, Muang District, Pha Sing Subdistrict, Ban Pha Tup, Bow Nam Thip Cave, 19.V 2018, S. Jantarit leg., SJ190518-01.
- Paratypes: 4 workers (THNHM-I-00029191 to THNHM-I-00029194), same data as holotype.