Temnothorax semiruber

On Crete this is an alpine species. Nests occur in rock crevices, under rocky vegetation and in rock dirt, always in sunlit positions. Workers forage within a maximum of 50cm from the nest (Salata, Borowiec & Trichas, 2018).

Identification
Salata et al. (2018) - Temnothorax semiruber is the only species known from Crete characterized by the following features: sparse and thick body sculpture, a long petiole peduncle and propodeal spines, a low and rounded petiole node, and a shiny body surface. It is the largest and the most strongly sculptured Cretan Temnothorax species.

Distribution based on Regional Taxon Lists
Palaearctic Region: Bulgaria, Greece, Israel, Republic of Macedonia.

Nomenclature

 *  semiruber. Leptothorax rottenbergi var. semiruber André, 1881b: 72 (w.) ISRAEL. Combination in Temnothorax: Bolton, 2003: 271. Subspecies of rottenbergi: Santschi, 1909b: 475; Santschi, 1921a: 111. Raised to species and senior synonym of balcanica: Agosti & Collingwood, 1987a: 56. See also: Atanassov & Dlussky, 1992: 141.
 * balcanica. Leptothorax rottenbergi var. balcanica Santschi, 1909b: 474, fig. 7 (w.) BULGARIA. Junior synonym of semiruber: Agosti & Collingwood, 1987a: 56.
 * jesus. Leptothorax rottenbergi var. jesus Forel, 1913d: 432 (w.) ISRAEL.
 * Subspecies of rottenbergi: Emery, 1924d: 252; Menozzi, 1933b: 68 (in key); Bolton, 1995b: 240; Vonshak, et al. 2009: 44; Kiran & Karaman, 2012: 26.
 * Status as species: Kugler, J. 1988: 257; Tohmé, G. & Tohmé, 2014: 136.
 * Junior synonym of semiruber: Salata, Borowiec & Trichas, 2018: 796.

Worker
Salata et al. (2018) - (based on Cretan specimens). Workers (n=4): HL: 0.802 ± 0.03 (0.771-0.832); HW: 0.632 ± 0.02 (0.609-0.654); SL: 0.585 ± 0.01 (0.57- 0.603); EL: 0.171 ± 0.005 (0.168-0.179); EW: 0.137 ± 0.008 (0.131-0.151); ML: 0.969 ± 0.04 (0.921-1.011); PSL: 0.291 ± 0.02 (0.268-0.313); SDL: 0.152 ± 0.01 (0.134-0.162); PL: 0.42 ± 0.02 (0.408-0.447); PPL: 0.249 ± 0.01 (0.24-0.263); PH: 0.268 ± 0.0 (0.268-0.268); PPH: 0.294± 0.008 (0.282-0.302); HTL: 0.543 ± 0.015 (0.531- 0.57); PNW: 0.494 ± 0.015 (0.474-0.514); PW: 0.252 ± 0.007 (0.246-0.263); PPW: 0.294 ± 0.006(0.285-0.302); HI: 78.8 ± 0.4 (78.3-79.4); SI1: 73.0 ± 0.8 (71.9-73.9); SI2: 92.6 ± 1.4 (90.6-94.2); MI: 56.1 ± 1.4 (53.9-57.7); EI1: 80.0 ± 2.6 (78.0-84.4); EI2: 17.1 ± 0.8 (16.1-18.1); TI: 116.4 ± 2.6 (114.7-120.9); PI: 156.8 ± 5.8 (152.2- 166.8); PPI: 84.4 ± 1.8 (82.5-87.1).

Head and gaster reddish brown to black. Legs reddish brown to black with anterior and posterior edges from dark brown to brick-red. Scape black with dark brown to brick-red apex, funiculus black with few first segments from dark brown to brick-red. Mesosoma, petiole and postpetiole from reddish brown to brickred, only dorsal surface of postpetiole with black spot. Some specimens with uniform colouration on the whole body, from dark brown to almost completely black.

Head rectangular, 1.2 times as long as wide, lateral surfaces below eyes straight, above eyes gently convex, posterior edges convex, occipital margin of head straight or slightly convex. Anterior margin of the clypeus slightly convex, without medial notch. Eyes small, oval, 1.4 times as long as wide. Antennal scape short, in lateral view slightly curved, 0.75 times as long as length of the head, in apex gradually widened, its base with small, triangular tooth, funiculus long, club 3 segmented. Surface of scape with fine microreticulation, shiny, covered with thin, dense, adjusted to subdecumbent setae. Mandibles rounded with thick sparse, longitudinal striae, shiny. Clypeus shiny with thick, longitudinal striae, area between striae smooth. Frontal carinae short, not extending beyond frontal lobes. Antennal fossa deep, with sparse, thick reticulation, area between striae smooth and shiny. Frontal lobes narrow, smooth with thick, reticulation. Head on the whole surface covered by thick, irregular reticulation, sometimes, on frons, reticulation longitudinal, area between reticulation with slight microreticulation. Entire head bearing from suberect to erect, pale, long and thick setae.

Mesosoma elongate, 2.0 times as long as wide, slightly arched in profile. Pronotum convex on sides. Propodeal spines long, narrow, with wide base, angled, with acute tips. Mesosoma shiny, its whole surface covered by thick, irregular reticulation, area between reticulation with microsculpture. Entire mesosoma bearing suberect to erect, pale, short and thick setae.

Petiole, in lateral view, with long peduncle, node low, arched. Postpetiole, in lateral view, regularly convex, apical half with gently convex sides. Peduncle and petiolar node and postpetiole dorsum shiny, with thick, dense reticulation, area between reticulation with microsculpture. Petiole and postpetiole on dorsal surfaces bearing sparse, short, semierect to erect setae.

Gaster smooth and shiny, bearing erect, thin, pale setae and a layer of short adpressed microsetae. Legs short, shiny, with fine microreticulation. Tibiae 0.7 times as long as head length, bearing adpressed setae on the whole surface. Inner margins of tibia and femora without erect setae.

Type Material
Salata et al. (2018) - Lectotype (w.) (CAS ENT0915396): Lectotypus, Leptothorax rettenbergii

References based on Global Ant Biodiversity Informatics

 * Agosti, D. and C.A. Collingwood. 1987. A provisional list of the Balkan ants (Hym. Formicidae) and a key to the worker caste. I. Synonymic list. Mitteilungen der Schweizerischen Entomologischen Gesellschaft, 60: 51-62
 * Borowiec L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25(1-2): 1-340.
 * Borowiec L., and S. Salata. 2012. Ants of Greece - Checklist, comments and new faunistic data (Hymenoptera: Formicidae). Genus 23(4): 461-563.
 * Borowiec L., and S. Salata. 2013. Ants of Greece  additions and corrections (Hymenoptera: Formicidae). Genus (Wroclaw) 24(3-4): 335-401.
 * Borowiec L., and S. Salata. 2017. Ants of the Peloponnese, Greece (Hymenoptera: Formicidae). Polish Journal of Entomology 86: 193-236.
 * Borowiec L., and S. Salata. 2018. Notes on ants (Hymenoptera: Formicidae) of the Euboea Island, Central Greece. Annals of the Upper Silesian Museum in Bytom Entomology 27(5): 1-15.
 * Bracko G., H. C. Wagner, A. Schulz, E. Gioahim, J. Maticic, and A. Tratnik. 2014. New investigation and a revised checklist of the ants (Hymenoptera: Formicidae) of the Republic of Macedonia. North-Western Journal of Zoology 10(1): 10-24.
 * Bracko G., K. Kiran, C. Karaman, S. Salata, and L. Borowiec. 2016. Survey of the ants (Hymenoptera: Formicidae) of the Greek Thrace. Biodiversity Data Journal 4: e7945. doi: 10.3897/BDJ.4.e7945
 * Collingwood, C. A. 1993. A Comparitive Study of the Ant Fauna of Five Greek Islands. Biologia Gallo-hellenica. 20,1:191-197
 * Collingwood, C. A. "A comparative study of the ant fauna of five Greek islands." Biologia Gallo-Hellenica 20 (1993): 191-197.
 * Czechowski W., A. Radchenko, W. Czechowska and K. Vepsäläinen. 2012. The ants of Poland with reference to the myrmecofauna of Europe. Fauna Poloniae 4. Warsaw: Natura Optima Dux Foundation, 1-496 pp
 * Forel A. 1892. Die Ameisenfauna Bulgariens. (Nebst biologischen Beobachtungen.). 305-318.
 * Forel, A. "Ameisen aus den Sporaden, den Cykladen und Griechenland, gesammelt 1887 von Herrn von Oertzen." Berliner Entomologische Zeitschrift 32 (1889): 255-265.
 * Kiran K. C. Karaman, A. Lapeva-Gjonova, and V. Aksoy. 2017. Two new species of the "ultimate" parasitic ant genus Teleutomyrmex KUTTER, 1950 (Hymenoptera: Formicidae) from the Western Palaearctic. Myrmecological News 25: 145-155.
 * Kiran K., and C. Karaman. 2012. First annotated checklist of the ant fauna of Turkey (Hymenoptera: Formicidae). Zootaxa 3548: 1-38.
 * Kiran K., and N. Aktac. 2006. The vertical distribution of the ant fauna (Hymenoptera: Formicidae) of the Samanh Mountains, Turkey. Linzer Biol. Beitr. 38(2): 1105-1122.
 * Kugler J. 1988. The zoogeography of Israel. 9. The zoogeography of social insects of Israel and Sinai. Monographiae biologicae 62: 251-275.
 * Legakis Collection Database
 * Petrov I. Z., and C. A. Collingwood. 1992. Survey of the myrmecofauna (Formicidae, Hymenoptera) of Yugoslavia. Archives of Biological Sciences (Belgrade) 44: 79-91.
 * Salata S., L. Borowiec, and A.Trichas. 2018. Taxonomic Revision of the Cretan Fauna of the Genus Temnothorax Mayr, 1861 (Hymenoptera: Formicidae), with Notes on the Endemism of Ant Fauna of Crete. Annales Zoologici (Warsaw) 68(4): 769-808.
 * Salata S., and L Borowiec. 2017. Species of Tetramorium semilaeve complex from Balkans and western Turkey, with description of two new species of (Hymenoptera: Formicidae: Myrmicinae). Annales Zoologici (Warsaw) 62:279–313.
 * Salata S., and L. Borowiec. 2018. Taxonomic and faunistic notes on Greek ants (Hymenoptera: Formicidae). Annals of the Upper Silesian Museum in Bytom Entomology 27: 1-51.
 * Tohme G. 1996. Formicidae. Etude de la diversité biologique n° 4 . Ministère de lAgriculture à Beyrouth (Eds.). P85-87.
 * Tohme G., and H. Tohme. 2014. Nouvelles liste des especes de fourmis du Liban (Hymenoptera, Formicoidea). Lebanese Science Journal 15(1): 133-141.
 * Tohmé, G. "Description d'espèces nouvelles de fourmis au Liban (Hymenoptera Formicoidea)." Publications de l'Universite Libanaise, Section des Sciences Naturelles 7 (1969): 1-15.
 * Vonshak M., and A. Ionescu-Hirsch. 2009. A checklist of the ants of Israel (Hymenoptera: Formicidae). Israel Journal of Entomology 39: 33-55.