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Aphaenogaster transversa
| Aphaenogaster transversa | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Aphaenogaster |
| Species: | A. transversa |
| Binomial name | |
| Aphaenogaster transversa Huang & Zhong, 2023 | |
Nothing is known about the biology of this rare Chinese species.
Photo Gallery
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Identification
Huang and Zhong (2023) - This species is similar to Aphaenogaster pumilopuncta, but in this species, posterior 1/3 of head dorsum and mesosoma transversely rugose, scapes with dense subdecumbent hairs and dense decumbent pubescence, propodeal spines extremely long and curved posteriorly, and body color black; while in A. pumilopuncta head and mesosoma reticulate, scapes with dense decumbent pubescence but without subdecumbent hairs, propodeal spines short and pointing posterodorsally, and body color black with head and gaster yellowish brown.
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 26.9° to 26.9°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: Huang & Zhong, 2023
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
Queen and male unknown.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- transversa. Aphaenogaster transversa Huang, Y. & Zhong, 2023: 5, figs. 3, 4 (w.) CHINA (Yunnan).
- Type-material: holotype worker, 3 paratype workers.
- Type-locality: holotype China: Yunnan Prov., Yongsheng County, Lijiang City, Rabbit Mt., ca 26°54’N, 100°34’E, 2700-3200 m., v.2022 (J. Gu); paratypes with same data.
- Type-depository: KIZK.
- Distribution: China.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype TL 7.5, HL 1.70, HW 1.21, CI 71, SL 2.30, SI 190, ED 0.29, PW 0.90, WL 2.61, PL 0.79, PH 0.42, DPW 0.28, PPL 0.46, PPH 0.41, PPW 0.33. Paratypes (n = 3). TL 7.2–7.5 (7.4), HL 1.67–1.71 (1.69), HW 1.19–1.24 (1.22), CI 70–74 (72), SL 2.24–2.39 (2.30), SI 183–193 (189), ED 0.26–0.29 (0.27), PW 0.87–0.88 (0.87), WL 2.42–2.55 (2.47), PL 0.61–0.70 (0.65), PH 0.37-0.43 (0.40), DPW 0.16–0.25 (0.20), PPL 0.42–0.49 (0.45), PPH 0.34–0.40 (0.37), PPW 0.29–0.32 (0.31); mean values in parentheses.
In full-face view, head nearly elliptical, distinctly elongate and narrowing posteriorly, longer than broad, posterior margin weakly convex, posterior corners indistinct, lateral margins moderately convex. Mandibles triangular, masticatory margin with three large apical teeth followed by a series of small irregular denticles. Dorsum of clypeus weakly convex, anterior margin slightly convex. Frontal carinae absent. Frontal lobes relatively large and suberect, concealing half of antennal socket. Antennae long, 12-segmented, apex of scape surpassing posterior head margin by 2/5 of its length, flagella filiform, antennal club 4-segmented. Eyes convex, located slightly before midpoint of lateral head margin and occupying 1/7 of lateral margin.
In lateral view head distinctly elongate and narrowing posteriorly. Promesonotum high, strongly convex. Promesonotal suture obvious but not impressed. Dorsum of mesonotum sloping down posteriorly, weakly concave centrally and weakly convex posteriorly. Metanotal groove deeply notched. Propodeum low, dorsum nearly straight and horizontal; propodeal spines long, slightly longer and declivous, stout basally and sharp apically, posteriorly pointing; declivity nearly straight, about 1/3 length of dorsum; propodeal lobes small and rounded apically; propodeal spiracle high on the side, close to dorsal margin. Anterior peduncle as long as petiolar node; petiolar node roughly conical and erect, dorsum narrowly rounded, anterior and posterior margins slightly convex; ventral margin of petiole nearly straight. Postpetiole as high as petiole, anterior peduncle about 1/2 length of postpetiolar node; the node roughly triangular and erect, the top bluntly angled, anterior and posterior margins straight, ventral margin straight. Gaster nearly oval.
In dorsal view, pronotum broadest, roughly trapezoidal and widening posteriorly, lateral margins moderately convex, humeral corners indistinct. Promesonotal suture visible but not impressed. Mesothorax significantly constricting anteriorly and narrow, mesonotum roughly trapezoidal and widening posteriorly, lateral margins nearly straight. Metanotal groove deeply impressed. Propodeum nearly trapezoidal and widening posteriorly, lateral margins weakly convex; propodeal spines long and acute, curving inward apically. Petiolar peduncle slender and narrower than the node, the node roughly circular. Postpetiole about 1.3 times as wide as petiole, distinctly widening posteriorly and roughly trapezoidal, lateral margins weakly convex, posterolateral corners bluntly angled. Gaster oval.
Mandibles longitudinally striate. Anterior 2/3 of head dorsum longitudinally rugose and posterior 1/3 transversely rugose, clypeus smooth. Mesosoma transversely rugose, posterodorsal portion of propodeal sides smooth and shiny. Petiole, postpetiole and gaster smooth and shiny. Body dorsum with abundant suberect to subdecumbent hairs and abundant decumbent short pubescence; scapes with dense subdecumbent hairs and dense decumbent pubescence, tibiae with dense depressing pubescence. Body color black; mandibles, flagella and legs blackish brown.
Paratypes same as holotype, but sometimes accompanied by a smaller body with a more coarsely sculpted head and a more rounded clypeal anterior margin.
Type Material
- Holotype. Worker, China, Yunnan, Lijiang City, Yongsheng County, Rabbit Mountain, about 26°54′N, 100°34′E, 2700–3200 m alt. (Exact data not available), V-2022, Jincai GU leg., KIZ0132770 (KIZ).
- Paratypes. 3 workers, with same data as holotype, KIZ0132771, KIZ0132772, KIZ0132773 (KIZ).
Etymology
The Latin specific epithet ‘transversa” derives from the Latin “trānsversa (fem.)” meaning crosswise, and refers to the transverse rugose sculpture all over the head and mesosoma.