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Syscia zhoui
| Syscia zhoui | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Dorylinae |
| Genus: | Syscia |
| Species: | S. zhoui |
| Binomial name | |
| Syscia zhoui Du, Xu & Chen, 2024 | |
The only known nest of Syscia zhoui was found in the Chongzuo White-Headed Langur National Reserve, Guangxi, China. The sampled site is located in an evergreen broad-leaf forest, on the soil surface under the falling leaves.
Photo Gallery
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Identification
Workers have 9-segmented antennae, body color reddish brown with antennae and legs yellowish brown. Head in full-face view subrectangular, longer than broad. Mesosoma in dorsal view subrectangular with almost parallel lateral sides; in lateral view, dorsal outline slightly convex. Petiole in dorsal view subquadrate, with lateral margins convex; in lateral view, petiolar node (excluding sternite) subquadrate with slightly convex dorsal outline, bilateral edge sloped slightly; subpetiolar process in lateral view subtriangle. Postpetiole in lateral view slightly higher than long, sternite anteroventrally produced as nearly orthogonal directed downward and forward.
Syscia zhoui is a special species with antennae 9 segments, similar to Syscia typhla, distinctly distinguished from all other species in Syscia with antennae 11 segments. However, S. zhoui can be distinguished from S. typhla by the following characteristics:
- head in lateral view trapezoidal in S. zhoui (head in lateral view oval in S. typhla)
- mesosoma rather robust, subrectangular with almost parallel lateral sides, and anterior margin slightly convex in dorsal view in S. zhoui (mesosoma rather elongate, long-ellipsoidal, with lateral sides and anterior margin obviously convex in dorsal view in S. typhla)
- both anterior margin and posterior margin of petiole straight in S. zhoui (both anterior margin and posterior margin of petiole convex in S. typhla)
- ventroposterior corner of subpetiolar process acute angled in S. zhoui (ventroposterior corner of subpetiolar process blunt rounded in S. typhla)
- postpetiole in dorsal view wider than long in S. zhoui (postpetiole in dorsal view longer than its width in S. typhla)
Keys including this Species
Distribution
China (Guangxi).
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Latitudinal Distribution Pattern
Latitudinal Range: 22.6° to 22.6°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: Du et al., 2024
Distribution based on type material
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.
- zhoui. Syscia zhoui Du et al., 2024: 175, figs. 1, 10, table 1 (w.) CHINA (Guangxi).
Type Material
- Holotype (worker): CHINA • Guangxi, Chongzuo City, Zuozhou Town, PaiRu Village in the Chongzuo White-Headed Langur National Reserve; 22.555816° N, 107.416772° E; 242.00 m a.s..l.; 13 Jun. 2016; Zhilin Chen leg.; No. GXNU160017.
- Paratypes (workers): CHINA • 1 worker; same collection data as for holotype; GXNU: GXNU160017-1 • 1 worker; same collection data as for holotype; SWFU: GXNU160017-2 • 1 worker; same collection data as for holotype; IZCAS: GXNU160017-3.