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Gauromyrmex orbihumerus
| Gauromyrmex orbihumerus | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Gauromyrmex |
| Species: | G. orbihumerus |
| Binomial name | |
| Gauromyrmex orbihumerus Chen & Chen, 2022 | |
The single collection of this species was made from the trunk of Elaeocarpus decipiens Hemsl., about 1.5 meters above the ground.
Photo Gallery
Identification
Anteromedian margin of clypeus concave. In lateral view, dorsum of pronotum convex; dorsum of mesonotum almost straight, and leaning forward slightly; dorsum of propodeum convex and declining posteriorly, about 1.5 times as long as its declivity, forming a tooth between dorsal margin and declivity, declivity concave. In dorsal view, humeral corners of pronotum rounded. Subpetiolar process triangular translucently; anterior 5/6 part of head with longitudinal stria; dorsum of promesonotum shiny, with fine stria; lateral face of mesosoma rugose longitudinally, dorsum of propodeum punctate-reticulate.
The new species is extremely similar to Gauromyrmex acanthinus, but can be distinguished from the latter by the following characters of workers:
- humeral corners of pronotum rounded in dorsal view
- anterior 5/6 part of head with longitudinal stria, and rest of head shiny, dorsum of promesonotum fine stria
- lateral face of mesosoma rugose longitudinally
- dorsum of propodeum punctate-reticulate
In addition, the difference between this species and Gauromyrmex bengkalisi is shown in couplet 2 of the key.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 22.58° to 22.58°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: Chen & Chen, 2022
Distribution based on Regional Taxon Lists
Palaearctic Region: China (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.
- orbihumerus. Gauromyrmex orbihumerus Chen & Chen, 2022: 8, figs. 14-16 (w.) CHINA (Guangxi).
Type Material
- Holotype worker, CHINA: Guangxi, Daxin, Xialei Protection Zone, 22.58°N, 106.75°E, 24.Ⅶ.2018, leg. Zhilin Chen, No. G187739.
- Paratypes: 2 workers from the same colony as the holotype worker. Type workers deposited in GXNU (Insect Collection, Guangxi Normal University, Guilin, Guangxi, China).