Mycetophylax vallensis

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina.

Nomenclature

 *  vallensis. Cyphomyrmex daguerrei subsp. vallense Kusnezov, 1949d: 450, figs. 12-15 (w.) ARGENTINA.
 * Raised to species: Kusnezov, 1957b: 11 (in key).
 * Combination in Mycetophylax: Sosa-Calvo et al., 2017: 9.
 * See also: Kempf, 1964d: 34.

Description
Kempf (1964) - The status of the present form is beset with problems that have no easy solution, without recourse to the types, if still available. I believe that Kusnezov was right when promoting vallensis (Kusnezov constantly spells vallense!) to full species level. As a matter of fact, Mycetophylax daguerrei is a significantly larger species with more undulated, mutually more approximated frontal carinae, scarcely prominent occipital lobe, longer scapes, armed epinotum, to mention just a few of the more obvious characters. M. vallensis is of smaller size, has more prominent occipital lobes, more broadly expanded frontal carinae which are scarcely constricted behind the frontal lobes. Its epinotum is unarmed and the scape does not project beyond the occipital lobes. It might he closely related with nemei, but in this form the postpetiole is extremely broad. The aberrant form, mentioned under lectus on a following page, might fall under this name. Indeed, this form includes a specimen from Tucumán (Kusnezov leg., n. 2339), which agrees in general characters with vallensis, but its lateral pronotal teeth are very low and the postpetiole is not cupuliform but broader. Short of settling all these doubts, I leave vallensis as a species inquirenda.

Type Material
Kempf (1964) - Seven workers, taken in Tafi del Valle, on the road to Santa Maria, Tucumán Province. The type locality is 2000 m above sea-level, its climate is temperate and relatively humid. The types appear to be lost.