Aenictus glabrinotum
Aenictus glabrinotum | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Dorylinae |
Genus: | Aenictus |
Species: | A. glabrinotum |
Binomial name | |
Aenictus glabrinotum Jaitrong & Yamane, 2011 |
The type series and non-type material examined were collected from lowland rainforests.
Identification
Jaitrong and Yamane (2011) - A. glabrinotum is a distinct species of the A. currax group in having very few standing hairs on the head and promesonotum.
Keys including this Species
Distribution
Borneo (Sabah, Sarawak, and E. Kalimantan).
Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo, Indonesia, Malaysia (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. |
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. |
Biology
Castes
Known only from the worker caste.
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Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- glabrinotum. Aenictus glabrinotum Jaitrong & Yamane, 2011: 16, figs. 5-7 (w.) BORNEO (East Malaysia: Sabah, Sarawak; Indonesia: Kalimantan).
- Type-material: holotype worker, 5 paratype workers.
- Type-locality: holotype Malaysia: Borneo, Sabah, Danum Valley, 29.iv.2000, CB-00-05 (C. Brühl); paratypes with same data.
- Type-depositories: MBSM (holotype); SKYC, TNHM (paratypes).
- Distribution: Indonesia (Kalimantan), Malaysia (Sabah, Sarawak).
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Measurements. Holotype and paratype workers (n = 6): TL 3.10–4.05 mm; HL 0.75–0.90 mm; HW 0.62–0.83 mm; SL 0.43–0.70 mm; ML 1.00–1.37 mm; PL 0.28–0.33 mm; CI 83–94; SI 68–85.
(holotype and paratypes). Head in full-face view slightly longer than broad, with sides slightly convex and posterior margin concave; occipital carina complete, not interrupted medially. Antennal scape relatively short, extending slightly beyond midlength of head; antennal segments II–X each longer than broad; II almost as long as each of III–VI. Frontal carina very short, not extending beyond the level of posterior margin of torulus. Parafrontal ridge absent. Anterior margin of clypeus lacking denticles; median portion of clypeal margin almost straight or feebly concave. Masticatory margin of mandible with a large apical tooth followed by a small subapical tooth and 3–4 denticles, which are only slightly smaller than subapical teeth; basal margin bearing 3–4 denticles. Promesonotum in profile weakly convex dorsally and sloping to metanotal groove. Propodeum in profile with almost straight or feebly convex dorsal outline; propodeal junction rounded; declivity of propodeum shallowly concave, and encircled with a thin rim; area below propodeal spiracle distinctly impressed; opening of propodeal spiracle clearly circular with its diameter about 1.6 times as long as diameter of postpetiolar spiracle. Petiole clearly longer than high, with its dorsal outline convex; subpetiolar process relatively low, with its ventral outline straight or weakly convex, and anteroventral corner bluntly produced or roundly angled. Postpetiole almost as long as petiole and clearly longer than high.
Head entirely smooth and shiny; mandible extensively smooth, without fine striation; antennal scape dorsally smooth and ventrally superficially sculptured. Pronotum smooth and shiny except the anterior portion punctate; mesonotum smooth and shiny; mesopleuron finely and densely punctate; metapleuron and lateral face of propodeum with fine rugulae and very minute sculpture but partly smooth; dorsum of propodeum smooth and shiny. Petiole with dorsal surface smooth and shiny, and anterior and lateral faces finely punctate. Postpetiole entirely smooth and shiny. Legs smooth and shiny.
Head with one or two long hairs on vertex (often completely hairless); ventral surface of head also with few (often no) standing hairs. Dorsum of mesosoma usually without standing hairs. Petiole and postpetiole each with only a pair of standing hairs. Hairs on hind femur very short, never overlapping each other; mid and hind tibiae with short appressed hairs only. Entire body dark reddish-brown, with a relatively large typhlatta spot on occipital corner; anterior border of the spot diluted into ground color.
Type Material
Holotype. Worker from Borneo, Sabah, Danum Valley, 29 IV 2000, C. Brühl leg. CB-00-05 (UMS). Five paratype workers, same data as holotype (SKY Collection, Natural History Museum of the National Science Museum).
Etymology
The specific name is a noun meaning the (promeso)notum without standing hairs.
References
- Jaitrong, W. & Yamane, S. 2011. Synopsis of Aenictus species groups and revision of the A. currax and A. laeviceps groups in the eastern Oriental, Indo-Australian, and Australasian regions (Hymenoptera: Formicidae: Aenictinae). Zootaxa, 3128, 1–46. PDF
- Yamane, S., Tanaka, H.O., Hasimoto, Y., Ohashi, M., Meleng, P., Itioka, T. 2021. A list of ants from Lambir Hills National Park and its vicinity, with their biological information: Part II. Subfamilies Leptanillinae, Proceratiinae, Amblyoponinae, Ponerinae, Dorylinae, Dolichoderinae, Ectatomminae and Formicinae. Contributions from the Biological Laboratory, Kyoto University 31, 87–157.
References based on Global Ant Biodiversity Informatics
- Jaitrong W.; Yamane, S. 2011. Synopsis of Aenictus species groups and revision of the A. currax and A. laeviceps groups in the eastern Oriental, Indo-Australian, and Australasian regions (Hymenoptera: Formicidae: Aenictinae). Zootaxa 3128:1-46.