Lasius schulzi

The large eyes suggest substantial epigaeous foraging which is unusual for a Lasius with yellow pigmentation

Identification
Seifert (2020) - L. schulzi is an unmistakable combination of yellow color, long scape and maxillary palp, extremely dilute pubescence on clypeus and sides of head, long and numerous setae on hind margin of head and absence of setae on scape.

Distribution
Seifert (2020) - Known from 15 sites in Anatolia within an area of 120 000 km² delimited by 36.47°N, 40.40°N, 31.79°E and 34.78°E. Altitudinal distribution is from sea level to 1600 m, with 90% of the sites above 600 m.

Distribution based on Regional Taxon Lists
Palaearctic Region: Turkey.

Habitat
Seifert (2020) - Main habitats are humid, shaded places in forests or shrub but it also occurs in rural and urban habitats.

Nomenclature

 *  schulzi. Lasius (Lasius) schulzi Seifert, 1992b: 24, fig. 18 (w.q.) TURKEY.

Description
Seifert (2020) - Absolute size rather small (CS 854 µm). Scape and maxillary palp length indices large (SL/CS900 1.010, MP6/ CS900 0.202). Postocular distance rather small (PoOc/ CL900 0.224). Number of mandibular dents medium (MaDe900 8.26). Pubescence on clypeus and sides of head extremely dilute (sqPDCL900 6.43) – as result and in combination with weak microsculpture these body surfaces very shining. Pronotal setae long (PnHL/CS900 0.157). Setae on hind margin of head long and numerous, contrasting with setae reduction on scape and tibiae (Occ900 15.0, nSc900 0.2, nHT900 1.5). Gular setae rather long and numerous (GuHL/CS900 0.121, nGu900 4.5). Coloration: Mesosoma, petiole, gaster and appendages bright yellow; head and gaster sometimes a littler darker with a brownish tinge.

See table 5 in Seifert 2020 for additional morphometrics. The abbreviated names of various quantitative data shown above are defined here: Seifert 2020 Lasius characters.

References based on Global Ant Biodiversity Informatics

 * Seifert B. 1992. A taxonomic revision of the Palaearctic members of the ant subgenus Lasius s.str. (Hymenoptera: Formicidae). Abhandlungen und Berichte des Naturkundemuseums Görlitz 66(5): 1-67.