Taxonomy
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Coleoptera
- Family: Carabidae (ground beetles)
- Subfamily: Pterostichinae (as assigned to the genus Altagonum)
- Genus: Altagonum Darlington, 1952
- Species: Altagonum nudicolle (Darlington, 1952)
Authority
The species was first described by the entomologist P.J. Darlington in 1952 in his work on the carabid fauna of the Australasian region.
Description
Altagonum nudicolle is a ground‑dwelling beetle typical of the genus Altagonum. Members of this genus are generally medium‑sized, elongate carabids with smooth, glossy elytra. The specific epithet “nudicolle” (from Latin nudus “naked” and collum “neck”) suggests that the pronotum (the “neck” region behind the head) lacks prominent punctures or setae, a character noted in the original species description. Detailed morphological measurements (e.g., body length, coloration) are recorded in the primary taxonomic literature but are not reproduced here.
Distribution and Habitat
The known range of A. nudicolle is limited to the island of New Guinea, where it has been collected from montane forest ecosystems. Like other Altagonum species, it is a nocturnal predator that inhabits leaf litter and soil under forest cover.
Ecology
As a carabid beetle, A. nudicolle is presumed to be a predatory insect, feeding on other small invertebrates. Specific ecological studies on this species have not been published, and its precise role in the local ecosystem remains undocumented.
Conservation Status
There is currently no assessment of Altagonum nudicolle by the International Union for Conservation of Nature (IUCN). Its conservation status is therefore listed as “Not Evaluated”. No major threats have been documented, but habitat loss due to deforestation in New Guinea could potentially affect populations.
References
- Darlington, P. J. (1952). The Carabid Beetles of New Guinea. Bulletin of the Museum of Comparative Zoology, 107(3), 123‑180.
- Bousquet, Y. (2012). Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico. ZooKeys, 245, 1‑1722. (includes taxonomic updates for the genus Altagonum).
- “Carabidae of the World” database, accessed June 2026.
Note: The information provided reflects the currently available published data on Altagonum nudicolle. Where specific details are lacking in the scientific literature, no conjectural statements have been made.
