Acropyga dubia
Acropyga dubia | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Formicinae |
Tribe: | Plagiolepidini |
Genus: | Acropyga |
Species group: | myops |
Species: | A. dubia |
Binomial name | |
Acropyga dubia Karavaiev, 1933 |
Nothing is known about the biology of this species.
Identification
LaPolla (2004) - A member of the Acropyga myops species group. Worker: 11 segmented antennae; mandible with 6 teeth; head slightly longer than broad; dorsum with dense layer of appressed hairs, with occasional scattered erect hairs. Queen: as in worker with modifications expected for caste. Male: unknown. Compare with Acropyga myops.
This species has workers that are morphologically similar to Acropyga myops, but differ primarily in possessing a narrower head (< 0.6 mm in A. dubia versus > 0.6 mm in A. myops), and in geographical distribution (A. dubia has not been found in Australia, the only known location for A. myops).
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo, Indonesia (type locality), Malaysia.
LaPolla (2004): I have only examined specimens of this species from Malaysian Borneo, though the original description reports the syntypes as being from Sumatra.
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
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Castes
Males are not known for this species.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- dubia. Acropyga (Rhizomyrma) dubia Karavaiev, 1933a: 311, fig. 3 (w.m.) INDONESIA (Sumatra).
- Type-material: 3 syntype workers, 1 syntype male.
- Type-locality: presumed to be Indonesia: Sumatra, Siak, 1912-13 (O. John).
- [Note: Karavaiev, 1933a: 312, explains that these syntypes arrived without locality data, but since almost all of O. John’s material was from Sumatra, Siak, it was assumed that these originated in the same locality.]
- Type-depository: unknown (not in SIZK (Radchenko, Fisher, et al. 2023: 10)).
- LaPolla, 2004a: 62 (q.).
- Status as species: Chapman & Capco, 1951: 212; Bolton, 1995b: 57; LaPolla, 2004a: 61 (redescription); Pfeiffer, et al. 2011: 36.
- Distribution: Indonesia (Sumatra), 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
LaPolla (2004) - (n=8): TL: 1.79-2.15; HW: 0.485-0.55; HL: 0.499-0.585; SL: 0.399-0.447; ML: 0.538-0.611; GL: 0.623-0.957; CI: 89.91-97.21; SI: 79.89-81.81.
Head: yellow; head slightly longer than broad; posterior margin entire to slightly concave medially; 11 segmented, incrassate antennae; scape reaches or nearly reaches (approximately 1/3 length of pedicel) posterior margin; clypeus convex medially, with appressed to erect hairs on surface; mandible broad with 6 teeth; 3rd tooth from apical smaller than others; basal tooth sometimes smaller than others and set back further than other teeth on masticatory margin; dorsal surface of mandible covered in a thick layer of short erect hairs (approximately 25 hairs); inner mandibular margin and anterior clypeal margin nearly parallel with each other. Mesosoma: yellow; in lateral view pronotum rises steeply toward mesonotum; pronotum covered in layer of appressed hairs, with scattered erect hairs posteriorly; mesonotum rounded, covered in layer of appressed hairs; scattered erect hairs throughout; metanotal area distinct; propodeum rounded, covered in layer of appressed hairs; declivity steep. Gaster: petiole thick and erect, reaching height of upper portion of propodeal spiracle; gaster yellow; covered in a thick layer of appressed hairs, with scattered erect hairs throughout.
Queen
LaPolla (2004) - (n=1): TL: 3.06; HW: 0.663; HL: 0.6; SL: 0.606; ML: 1.1; GL: 1.36; CI: 110.5; SI: 91.40. As in worker with modifications expected for caste and with the following differences: overall color brownish-yellow, darker toward apex of head and on gaster dorsum.
Type Material
LaPolla (2004) - Acropyga dubia Karavaiev, 1933: 311 (w.m.). 3 syntype workers, 1 syntype male, INDONESIA: Sumatra (O. John) (depository unknown) [not examined]. The syntypes of this species could not located for examination. The original description includes description of a male, but because the syntypes could not be located and no other male specimens have been found in collections, the male unfortunately cannot be described at this time.
References
- Biinzli, G.H. 1935. Untersuchungen iiber coccidophile Ameisen aus den Kaffeefelden von Surinam. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 16:455-593.
- Brown, W.L., Jr. 1945. An unusual behavior pattern observed in a Szechuanese ant. Journal of the West China Border Research Society 15:185-186.
- Buschinger, J., J. Heinze & K. Jessen. 1987. First European record ofa queen ant carrying a mealybug during her mating flight. NatUlwissenschaften 74:139-140.
- Eberhard, W.G. 1978. Mating swarms ofa South American Acropygia [sic.] (Hymenoptera: Formicidae). Entomological News 89(1 & 2):14-16.
- Eisner, T. 1957. A comparative morphological study ofthc proventriculus of ants (Hymenoptera: Formicidae). Bulletin ofthe Museum of Comparative Zoology 116:439-490.
- Holldobler B . & E.O. Wilson. 1990. The Ants. Belknap Press, Cambridge, Massachusetts, 732 pp.
- Johnson, c., D. Agosti, J.H. Delabie, K. Dumpert, OJ. Williams, M. von Tschimhaus & U. Maschwitz. 2001 . Acropyga and Azteca Ants with Scale Insects: 20 Million Years ofIntimate Symbiosis. American Museum Noviates 3335:1-18.
- Karavaiev, V. 1933a [1932]. Ameisen aus dem Indo-Australischen Gebiet, VII. Konowia 11: 305-320 (page 311, fig. 3 worker, male described)
- LaPolla, J.S. 2004a. Acropyga of the world. Contributions of the American Entomological Institute. 33(3):1-130. (page 61, worker described)
- LaPolla, J.S., S.P. Cover & U.G. Mueller. 2002. Natural history of the mealybug-tending ant Acropyga epedana, with descriptions of the male and queen castes. Transactions of the American Entomological Society 128(3):367-376.
- Prins, AJ. 1982. Review of Anoplolepis with reference to male genitalia, and notes on Acropyga. Annals of the South African Museum 89:215-247.
- Radchenko, A.G., Fisher, B.L., Esteves, F.A., Martynova, E.V., Bazhenova, T.N., Lasarenko, S.N. 2023. Ant type specimens (Hymenoptera, Formicidae) in the collection of Volodymyr Opanasovych Karawajew. Communication 1. Dorylinae, Poneromorpha and Pseudomyrmecinae. Zootaxa, 5244(1), 1–32 (doi:10.11646/zootaxa.5244.1.1).
- Weber, N.A. 1944. The Neotropical coccid-tending ants of the genus Acropyga Roger. Annals of the Entomological Society of America 37:89-122.
- Wheeler, G.C. & J.C. Wheeler. 1953. The ant larvae of the subfamily Formicinae. Annals of the Entomological Society of America 46:126-171.
- Wheeler, W.M. 1935b. Ants of the genus Acropyga Roger, with description ofa new species. Journal of the New York Entomological Society 43:321-329.
- Williams, D J . 1998. Mealybugs of the genera Eumyrmococcus Silvestri and Xenococcus Silvestri associated with the ant genus Acropyga Roger and a review of the subfamily (Hemiptera, Coccoidea, Pseudoccidae). Bulletin of the British Museum (Natural History)(Entomology) 67:1-64.
References based on Global Ant Biodiversity Informatics
- Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
- Karavaiev V. 1933. Ameisen aus dem Indo-Australischen Gebiet, VII. Konowia 11: 305-320.
- LaPolla J.S. 2004. Acropyga (Hymenoptera: Formicidae) of the world. Contributions of the American Entomological Institute 33(3): 1-130.
- Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58