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Parasyscia hashimotoi
| Parasyscia hashimotoi | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Dorylinae |
| Genus: | Parasyscia |
| Species: | P. hashimotoi |
| Binomial name | |
| Parasyscia hashimotoi (Terayama, 1996)
| |
| Common Name | |
|---|---|
| Jyuuni-kubire-hari-ari | |
| Language: | Japanese |
The true status of this species is uncertain. It is similar to Parasyscia reticulata Emery from Taiwan, Parasyscia dohertyi Emery from Sumatra and Borneo, and Parasyscia salimani from Java. Very rare. (Japanese Ant Image Database)
Identification
Terayama (1996) - May most resemble Parasyscia dohertyi from Borneo. However, it is separated from the latter by the smaller eyes, smooth surface of head and propodeum, smaller punctures on head, and small body size.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Palaearctic Region: Japan (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
Worker
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Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- hashimotoi. Cerapachys hashimotoi Terayama, 1996: 18, figs. 30-33 (w.) JAPAN.
- Type-material: holotype worker, 1 paratype worker.
- Type-locality: holotype Japan: Okinawa Pref., Iriomote-jima, 14.ii.1985 (Y. Hashimoto); paratype with same data.
- Type-depository: MNHA.
- Combination in Parasyscia: Borowiec, M.L. 2016: 205.
- Status as species: Imai, et al. 2003: 210.
- Distribution: Japan.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype. HL 0.73 mm; HW 0.58 mm; SL 0.40 mm; CI 79; SI 69; WL 1.00 mm; PNL 0.38 mm; PH 0.50 mm; DPW 0.40 mm; TL 3.3 mm.
Head rectangular with subparallel sides and concave posterior margin in frontal view; posterolateral comers forming an acute angle; frons, gena and vertex smooth with large punctures coarsely; diameter of punctures ca. 0.03 mm; punctures separated by 0.2-0.4 x their own diameters. Mandibles triangular; masticatory margin with more than 10 small denticles. Antennae with 12 segments; scape 0.69 x head width, broadest at posterior end, maximum width 2.75 x minimum width; pedicel as long as wide; 3rd to 11th segments each distinctly wider than long; terminal segment 2.3 x as long as wide, longer than preceding 3 segments combined. Eyes present, 0.07 mm in maximum diameter, each consisting of relatively indistinct 10 facets.
Alitrunk smooth with large punctures coarsely like head; anterior margin carinate; posterolateral corners angulate.
Petiole subrectangular; anterior and posterior margins straight and dorsal margin very weakly convex in lateral view; sculpture as on alitrunk; in dorsal view, disc slightly wider than long, widest at posterior end with maximum width 1.36 x minimum width. Postpetiole slightly higher than long excluding presclerite and slightly longer than petiole in lateral view; in dorsal view, postpetiole 0.90 x as long as wide, with dorsal width 1.25 x petiole width.
Gaster coarsely punctate; punctures distinctly smaller than those on alitrunk and head. First gastral tergite as long as wide in dorsal view; maximum width 0.70 mm.
Body reddish brown; legs yellowish brown. Suberect golden hairs abundant on the body.
Variation. A paratype worker with the following measurements and indices: HL 0.63 mm; HW 0.50 mm; SL 0.25 mm; CI 79; SI 50; WL 0.85mm; AW 0.38 mm; PL 0.35 mm; PH 0.30 mm; DPW 0.75 mm; TL 3.0 mm.
Type Material
Holotype. Worker, Iriomote-jirna, Okinawa Pref., 14.II.1985, Y. Hashimoto leg.
Paratype. 1 worker, same data as holotype.
Etymology
This species is named in honor of Dr. Y. Hashimoto, for his contributions to the knowledge of the ant fauna of Japan.
References
- Borowiec, M.L. 2016. Generic revision of the ant subfamily Dorylinae (Hymenoptera, Formicidae). ZooKeys 608: 1-280 (doi: 10.3897/zookeys.608.9427).
- Chen, Z., Liang, C., Du, C. 2022. Revision of Chinese species of the ant genus Parasyscia Emery, 1882 (Hymenoptera: Formicidae: Dorylinae). Zootaxa 5196(3), 301–330 (doi:10.11646/zootaxa.5196.3.1).
- Terayama, M. 1996b. Taxonomic studies on the Japanese Formicidae, part 2. Seven genera of Ponerinae, Cerapachyinae and Myrmicinae. Nature and Human Activities. 1:9-32. (page 18, figs. 30-33 worker described)
References based on Global Ant Biodiversity Informatics
- Terayama M. 1996. Taxonomic studies on the Japanese Formicidae, part 2. Seven genera of Ponerinae, Cerapachyinae and Myrmicinae. Nature & Human Activities 1: 9-32.
- Terayama M., S. Kubota, and K. Eguchi. 2014. Encyclopedia of Japanese ants. Asakura Shoten: Tokyo, 278 pp.
- Yamane S., S. Ikudome, and M. Terayama. 1999. Identification guide to the Aculeata of the Nansei Islands, Japan. Sapporo: Hokkaido University Press, xii + 831 pp. pp, 138-317.
- Yamane S.; Ikudome, S.; Terayama, M. 1999. Identification guide to the Aculeata of the Nansei Islands, Japan. Sapporo: Hokkaido University Press, xii + 831 pp. pp138-317.