Pseudolasius trimorphus

Pseudolasius trimorphus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Formicinae
Tribe:	Lasiini
Genus:	Pseudolasius
Species:	P. trimorphus
Binomial name
Pseudolasius trimorphus Karavaiev, 1929 Specimen Labels

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (type locality), Singapore.

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.

Castes

Images from AntWeb

Syntype of Pseudolasius trimorphus. Worker. Specimen code casent0912327. Photographer Will Ericson, uploaded by California Academy of Sciences.	Owned by NHMB, Basel, Switzerland.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• trimorphus. Pseudolasius trimorphus Karavaiev, 1929a: 52, fig. 7 (s.w.q.m.) INDONESIA (Java).

The following notes on V.A. Karavaiev type specimens have been provided by Martynov & Radchenko (2016) based on material held in the Institute of Zoology, Ukrainian Academy of Science:

Type locality(-ies): “Tjibodas, Java (Nr. 3861, 3862, 3863), w min., med., und maj., zahlreiche flügellose und 1 geflüg. q.—Buitenzorg, Java (Nr. 2367), ww min. und med., zahlreiche mm und 1 flügellose q.—? Sundstrasse bei Bantan (Java), auf dem Deck des Dampfers (Nr. 2396), 2 q, etwas kleiner”.

Original Karawajew label(-s): “Pseudolasius trimorphus Kar. / Buitenzorg. Karavaev. 2367”.

Material: SYNTYPES, 6 w, 2 q (newly mounted, IN 314/6/2), 113 w, 218 q and m (in alcohol, IN 314/ BAMS1/Karaw60).

References

• Karavaiev, V. 1929b. Ameisen aus dem Indo-Australischen Gebiet. VI [sic]. Zb. Prats Zool. Muz. 7:43-58 [= Tr. Vseukr. Akad. Nauk Fiz.-Mat. Vidd. 13:41-56]. (page 52, fig. 7 soldier, worker, queen, male described)
• Martynov, A.V., Radchenko, A.G. 2016. Karawajew's ant type specimens (Hymenoptera, Formicidae) in the National Museum of Natural History of the National Academy of Sciences of Ukraine. Zootaxa 4097 (2): 244–254.
• 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).
• Wang, W.Y., Soh, E.J.Y., Yong, G.W.J., Wong, M.K.L., Benoit Guénard, Economo, E.P., Yamane, S. 2022. Remarkable diversity in a little red dot: a comprehensive checklist of known ant species in Singapore (Hymenoptera: Formicidae) with notes on ecology and taxonomy. Asian Myrmecology 15: e015006 (doi:10.20362/am.015006).

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
• Martynov A. V., and A. G. Radchenko. 2016. Karawajew’s ant type specimens (Hymenoptera, Formicidae) in the National Museum of Natural History of the National Academy of Sciences of Ukraine. Zootaxa 4097 (2): 244–254.