Myrmoteras morowali

AntWiki: The Ants --- Online
Myrmoteras morowali
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Myrmoteratini
Genus: Myrmoteras
Species: M. morowali
Binomial name
Myrmoteras morowali
Moffett, 1985

Myrmoteras morowali casent0903242 p 1 high.jpg

Myrmoteras morowali casent0903242 d 1 high.jpg

Specimen Labels L1/L2

Nothing is known about the biology of Myrmoteras morowali.


Moffett (1985) - Distinguished from closely related Myrmoteras wolasi and Myrmoteras toro by the finely granulate sculpture dorsally on head and pronotum; very smooth and shining frontal area; granulate clypeus; presence of transverse rugae across declivity of propodeum, which is smooth only near base; and light yellow color, with the petiole concolorous with trunk and gaster.

Keys including this Species


Distribution based on Regional Taxon Lists

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

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.



Images from AntWeb

Myrmoteras morowali casent0903243 h 1 high.jpgMyrmoteras morowali casent0903243 d 1 high.jpgMyrmoteras morowali casent0903243 p 1 high.jpgMyrmoteras morowali casent0903243 l 1 high.jpgMyrmoteras morowali casent0903243 l 2 high.jpg
Holotype of Myrmoteras morowaliWorker. Specimen code casent0903243. Photographer Will Ericson, uploaded by California Academy of Sciences. Owned by NHMUK, London, UK.


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

  • morowali. Myrmoteras (Myagroteras) morowali Moffett, 1985b: 48, figs. 38, 42 (w.q.) INDONESIA (Sulawesi).

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.



Holotype (HW 0.80) and four paratypes: TL 4.2 to 4.5, HW 0.80 to 0.82, HL 0.83 to 0.85 (CI 96 to 97), ML 1.13 to 1.19 (MI 140 to 144), SL 0.87 to 0.90 (SI 108 to 112), EL 0.49 to 0.50, HFL 0.87 to 0.93 (TWI 22 to 23), WL 1.15 to 1.20 mm. Frontal sulcus a very narrow, well-defined groove. Frontal area very clearly defined. Mandibles with 11 to 12 teeth (usually 11) and two to four preapical denticles (usually three). Smallest apical denticle tiny, closely applied to the larger denticle, which is small and sharp. Mandibles with feeble but conspicuous medial grooves extending longitudinally for most of the length of the shafts (absent in Myrmoteras wolasi).

Trunk very similar to Myrmoteras toro, except propodeum dorsally flattened and with posterior slope of petiole relatively straight, curving only at base and summit. Metanotal groove conspicuously impressed but narrower than in M. toro.

Finely and regularly granulate dorsally on head and clypeus, also granulate (but more feebly) on back of head, including occipital lobe; granules ca. 0.01 mm across. Frontal area smooth and translucent, and thus standing out prominently. Sides of head below eyes longitudinally granulorugose; ventral surface of head smooth. Pronotum granulate, granules formed into broad longitudinal rugae, particularly dorsad; mesonotum densely longitudinally rugose, with traces of granulate sculpture, pleura of mesothorax with similar, but less dense rugae, granulate sculpture absent; propodeum with longitudinal granulate rugae, declivity transversely rugose except near base. Pilosity dense, with 30 to 36 hairs breaking dorsal margin of trunk in profile. Hairs short, rising to 0.06 to 0.08 mm on head and 0.10 mm on trunk and gaster. Two or three hairs at or near each metathoracic tubercle; node of petiole with four to eight hairs. Color exceptionally light, uniform yellow or orange yellow, mandibles somewhat lighter.


TL 4.5, HW 0.80, HL 0.83 (CI 97), ML 1.13 (MI 137), SL 0.86 (SI 107), EL 0.48, HFL 0.90 (TWI 22), WL 1.21 mm. Dorsum of trunk granulate, with the mesonotum and scutellum longitudinally granulo-rugose; mesepisternum much smoother; propodeum with strong narrow transverse rugae 0.02 to 0.03 mm apart, smooth low on declivity. Uniform yellowish orange.

Type Material

Holotype. Worker deposited in The Natural History Museum from Indonesia: Central Sulawesi: near Morowali, Ranu river area, 27.i.-20.iv.l980, B.M. 1980-280 (M. J. D. Brendell).

Paratypes. One dealate queen and four worker paratypes with same locality data and collection number (BMNH and Museum of Comparative Zoology).


Name is a noun in apposition after the type locality.


References based on Global Ant Biodiversity Informatics

  • Agosti, D. 1992. Revision of the ant genus Myrmoteras of the Malay Archipelago (Hymenoptera, Formicidae). Rev. Suisse Zool. 99: 405-429
  • Moffett M.W. 1985. Revision of the genus Myrmoteras. Bulletin of the Museum of Comparative Zoology 151: 1-53.
  • Zettel H., and Sorger, D. M. 2011. New Myrmoteras ants (Hymenoptera: Formicidae) from the southeastern Philippines. Raffles Bulletin of Zoology 59:61-67.