| Stereomyrmex | |
|---|---|
| | |
| Stereomyrmex horni worker | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Stereomyrmex Emery, 1901 |
| Type species | |
| Stereomyrmex horni Emery, 1901 | |
| Diversity [1] | |
| 3 species | |
| Synonyms | |
WillowsiellaWheeler, 1934 | |
Stereomyrmex is a genus of myrmicine ants. Two of the described species are known from only a single worker, making this one of the rarest groups of ants in the world. [2]
The single specimen of S. anderseni was caught in a pitfall trap, and nothing is known about its biology.[ citation needed ]
Stereomyrmex is probably the sister taxon to Romblonella . Closely related genera are Leptothorax and Cardiocondyla . [3]
Stereomyrmex dispar is 3.2 mm long and black, with yellowish brown mandibles, antennae, legs and terminal segments of gaster. S. anderseni is only 2 mm long, has a very different petiolar and postpetiolar structure and is paler in color. [3]
Stereomyrmex dispar has been described from a single worker, taken in 1933 on Bellona Island, Solomon Islands; no other specimen has since been found, and it is unlikely that the species is truly endemic to Bellona. S. anderseni is known from a single worker as well. [3] S. horni was collected under rocks in Sri Lanka. [4]
The genus was originally named in honor of Maurice Willows Jr., who collected the type specimen of S. dispar. [5] S. anderseni was collected by A.N. Andersen. S. horni was collected by W. Horn.[ citation needed ]