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Leptanilloides improvisus
| Leptanilloides improvisus | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Dorylinae |
| Genus: | Leptanilloides |
| Species: | L. improvisus |
| Binomial name | |
| Leptanilloides improvisus Brandão, Diniz, Agosti & Delabie, 1999 | |
A brief habitat remark - shrub litter - from the type label is all that is known about the biology of Leptanilloides improvisus.
Identification
A member of the Leptanilloides biconstricta species-group.
Keys including this Species
Distribution
Distribution based on Regional Taxon Lists
Neotropical Region: Ecuador (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
Images from AntWeb
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| Specimen code casent0234624. . | |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- improvisus. Leptanilloides improvisa Brandão, Diniz, et al. 1999: 28, figs. 3, 4, 16, 22 (w.) ECUADOR.
- Type-material: holotype worker.
- Type-locality: Ecuador: Volcán Cotopaxi, NNE Latacunga, Paramo Moss, 3350 m., 23.vi.1975, B-305, shrub litter (S. & J. Peck).
- Type-depository: MCZC.
- Status as species: Donoso, et al. 2006: 60 (in key); Borowiec, M.L. & Longino, 2011: 27 (in key); Delsinne, et al. 2015: 8 (in key).
- Distribution: Ecuador.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype (MCZ) (in mm): HL 0.50, HW 0.38, SL 0.26, WL 0.68, CI 76, SI 68, SRI.
The postpetiole nearly as high dorsoventrally than the first fourth abdominal segment. The coarser head sculpture and mandibular teeth, better developed in relation to the other species in the genus, distinguishes L. improvisus from all other Leptanilloides.
Other relevant characters include: head with convex sides in full-face view, head sculpture with up to 20 deep foveolae covering a straight transverse line at head midlength; inner margins of the frontal carinae are separated from each other; flange over the metapleural gland opening rounded, and it does not surpass the lateral propodeum profile.
Type Material
Holotype worker deposited at Museum of Comparative Zoology. Ecuador, Volca´n Cotopaxi, NNE Latacunga, Paramo Moss, shrub litter, 3350 m, 23.vi.1975, B-305, leg. S. & J. Peck.
Etymology
Improvisa, a noun in apposition, meaning unexpected in Latin, referring to the fact that this manuscript was almost ready when we found this unique specimen among other samples of Leptanilloides.
References
Brandão, C. R. F.; Diniz, J. L. M.; Agosti, D.; Delabie, J. H. 1999. Revision of the Neotropical ant subfamily Leptanilloidinae. Systematic Entomology 24:17-36. (page 28, figs. 3,4, 16, 22 worker described)
References based on Global Ant Biodiversity Informatics
- Brandão, C.R.F., J.L.M. Diniz, D. Agosti and J.H. Delabie. 1999. Revision of the Neotropical ant subfamily Leptanilloidinae. Systematic Entomology, 24: 17-36.
- Delsinne T., G. Sonet, and D. A. Donoso. 2015. Two new species of Leptanilloides Mann, 1823 (Formicidae: Dorylinae) from the Andes of southern Ecuador. European Journal of Taxonomy 143: 1–35.
- Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.