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Monomorium noxitum
| Monomorium noxitum | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Solenopsidini |
| Genus: | Monomorium |
| Species: | M. noxitum |
| Binomial name | |
| Monomorium noxitum Bolton, 1987
| |
This species has been found in the leaf litter of rainforest habitats.
Identification
Bolton (1987) - A member of the M. strangulatum complex in the M. monomorium species group. Very closely related to Monomorium draxocum, the two are separated as follows:
draxocum
- HL 0.39-0.42, HW 0.32-0.35.
- SL 0.32-0.36 (SI 100-109).
- AL 0.44-0.46.
- Maximum diameter of eye 0.21-0.24 x HW, with 5-6 ommatidia in longest row.
- Legs very pale, conspicuously much lighter than alitrunk.
- Propodeal spiracle of moderate size.
- Alitrunk very dark brown.
noxitum
- HL 0.46-0.50, HW 0.37-0.40.
- SL 0.39-0.42 (SI 103-105).
- AL 0.54-0.58.
- Maximum diameter of eye 0.22-0.26 x HW, with 6-7 ommatidia in longest row.
- Legs only slightly lighter in colour than alitrunk.
- Propodeal spiracle large.
- Alitrunk light brown.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Afrotropical Region: Cameroun (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
Images from AntWeb
   
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| Holotype of Monomorium noxitum. Worker. Specimen code casent0902240. Photographer Will Ericson, uploaded by California Academy of Sciences. | Owned by NHMUK, London, UK. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- noxitum. Monomorium noxitum Bolton, 1987: 403 (w.) CAMEROON.
- Type-material: holotype worker, 8 paratype workers.
- Type-locality: holotype Cameroon: Nkoemvon, 1980 (D. Jackson); paratypes with same data.
- Type-depositories: BMNH (holotype); BMNH, MCZC, MHNG (paratypes).
- Status as species: Bolton, 1995b: 265.
- Distribution: Cameroon.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype. TL 2.1, HL 0.49, HW 0.40, CI 82, SL 0.42, SI 105, PW 0.27, AL 0.56.
Answering the description of Monomorium draxocum holotype and with biconvex head as shown for Monomorium gabrielense (Fig. 76). Differing from draxocum holotype by having 7 ommatidia in the longest facet-row of the eye. The metanotal cross-ribs are much more distinct laterally than in draxocum and are not confused with the strong reticulate-punctate sculpture of the mesopleuron. Head and alitrunk brown, with blackish brown gaster; legs scarcely lighter in shade than alitrunk.
Paratypes. TL 2.0-2.1, HL 0.46-0.50, HW 0.37-0.40, CI 79-82, SL 0.39-0.42, SI 103-105, PW 0.24-0.27, AL 0.54-0.58 (8 measured). As holotype but maximum diameter of eye 0.22-0.26 x HW (0.23 x HW in holotype) and with 6-7 ommatidia in the longest row.
Type Material
Holotype worker, Cameroun: Nkoemvon, 1980 (D. Jackson) (The Natural History Museum). Paratypes, 8 workers with same data as holotype (BMNH; Museum of Comparative Zoology; Musee d'Histoire Naturelle Genève).