Leptanilloides improvisus

Distribution based on Regional Taxon Lists
Neotropical Region: Ecuador.

Nomenclature

 *  improvisa. Leptanilloides improvisa Brandão, Diniz, Agosti & Delabie, 1999: 28, figs. 3, 4, 16, 22 (w.) ECUADOR.

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. improvisa 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.

Additional References

 * Brandão, C. R. F.; Diniz, J. L. M.; Agosti, D.; Delabie, J. H. C. 1999. Revision of the Neotropical ant subfamily Leptanilloidinae. Syst. Entomol. 24: 17-36