Proformica striaticeps

AntWiki: The Ants --- Online
Proformica striaticeps
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Formicini
Genus: Proformica
Species: P. striaticeps
Binomial name
Proformica striaticeps
(Forel, 1911)

Proformica striaticeps casent0911063 p 1 high.jpg

Proformica striaticeps casent0911063 d 1 high.jpg

Specimen Labels

In Greece this rare species has only been recorded from the highlands of Halkidiki in Macedonia and mountains of north-western Peloponnese. Its numerous nests were observed in a mountain pasture along a clay-gravel road (Borowiec & Salata, 2021).

Identification

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 42.596228° to 40.76°.

 
North
Temperate 		North
Subtropical 		Tropical South
Subtropical 		South
Temperate

Distribution based on Regional Taxon Lists

Palaearctic Region: Bulgaria, China, Greece (type locality), Türkiye.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.
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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.
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Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • striaticeps. Formica (Proformica) nasuta var. striaticeps Forel, 1911d: 352 (w.) GREECE. Combination in Proformica: Dlussky, 1969a: 224. Raised to species: Dlussky, 1969a: 224. See also: Atanassov & Dlussky, 1992: 287.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Borowiec and Salata (2022) - Moderately large, polymorphic; minor workers HL: 0.754-0.873 (mean 0.813); HW: 0,484-0.594 (mean 0.535); SL: 0.762-0.817 (mean 0.793); EL: 0.230-0.241 (mean 0.233); EW: 0.160-0.178 (mean 0.167); ML: 1.03-1.18; MW: 0.46-0.54. Color. Head, meso- and metanotum, petiolar scale brown, pronotum and gaster yellowish brown, antennae and legs yellowish, femora often obscured in the middle on mostly yellowish brown with yellow apex, often distal antennomeres indistinctly infuscated; sometimes pronotum yellow on the top with brownish spot of diffused borders; in many specimens surface of body with distinct cupreous tint. Head. Approximately 1.5 times longer than wide, in front of eyes parallelsided, behind eyes regularly rounded, occipital margin convex. Clypeus on the whole surface with distinct longitudinal striation, slightly trapezoidal, its anterior margin convex, sides convergent posterad, posterior margin truncate in the middle, whole clypeal surface with sparse and short appressed hairs, a row of 4 long setae close to anterior margin and few long erected setae centrally and close to posterior margin, the longest anterior seta with length 0.167. Head in frons and frons up to 1/3 eye length with well-marked longitudinal striation, rest of head microreticulate, with very sparse and short appressed pubescence, erected setae absent, no erected setae in ocellar and occipital part of head, gena and ventral side of head also lacking erected setae. Scape very long, approximately 1.5 times longer than width of head, thin, distinctly reaching beyond the occipital margin, distinctly, regularly widened from 2/3 of its length, its surface microreticulate but shiny, with short and sparse appressed pubescence. Funicular segments elongate, thin, first segment 2.2 times as long as second, the second funicular segment 1.6 times as long as wide, as long as or only slightly shorter than third segment, the rest of funicular segments clearly longer than broad. Eyes big, elongate oval, approximately 1.4 times longer than wide, 0.29 length of head. Mandibles long, with longitudinal sculpture but shiny, with large apical dent and smaller denticles on masticatory margin. Mesosoma. Elongate, in dorsal view distinctly constricted in the middle, 2.3 times as long as wide, dorsally and laterally with microreticulation, surface indistinctly shiny. In lateral view pronotum convex, metanotum and propodeum continuous with shallow mesonotal groove. Whole mesosomal surface covered with very short and sparse appressed pubescence, usually lacking erected setae, occasionally all mesonotal segments with 1 or 2 very short, hardly visible erected setae. Waist and gaster. Petiolar scale thick in lateral view but broad in anterior view, apex truncate or shallowly concave, without or with 1-2 short setae. Gaster longer than mesosoma, first tergite distinctly microreticulated, subsequent tergites with mixed microreticulation and transverse microstriation, surface shiny, covered with very short and sparse, often hardly visible appressed pubescence, distance between hairs as large as 2/3 to whole length. First and second gastral tergite lacking erected setae except row of moderately long setae close to posterior margin, third gastral segment across the middle with a row of few short erected setae. Legs. Ventral surface of fore femora with 2-3, of mid and hind femora with 1-2 erected setae.

Major workers HL: 1.238-1.460 (mean 1.335); HW: 1.039-1.269 (mean 1.131); SL: 1.060-1.127 (mean 1.090); EL: 0.336-0.365 (mean 0.351); ML: 1.80-1.93; MW: 0.84-0.97. Color. Head, pro-, meso- and metanotum, petiolar scale and gaster black, sometimes posterolateral parts of pronotum and sides of mesonotum with reddish brown spots of duffused borders, coxa, trochanters and femora brown, apes of femora usually yellowish brown, tibiae yellowish brown, antennae and tarsi yellowish, last six segments of funicle gradually darkened, from yellowish brown to brown. Head. Approximately 1.2 times longer than wide, in front of eyes parallelsided, behind eyes regularly rounded, occipital margin convex. Clypeus on the whole surface with distinct longitudinal striation, slightly trapezoidal, its anterior margin convex, sides convergent posterad, posterior margin truncate in the middle, whole clypeal surface with very sparse and short appressed hairs, a row of 6 long setae close to anterior margin and a pair long erected setae centrally, the longest anterior seta with length 0.302. Frons in anterior half with well-marked longitudinal striation, sometimes striae occur only on sides of frons, rest of head microreticulate but shiny, with very sparse and short appressed pubescence, frons in the middle in a pairs of short erected setae and sometimes in frontal 1/3 length with additional pair of short erected setae, ocellar area without or with 1-2 very short erected setae, occipital part of head and gena lacking erected setae, ventral side of head with 4-6 long erected setae. Scape short, 0.9-1.0 times as long as width of head, thin,, distinctly, regularly widened from 2/3 of its length, its surface microreticulate but shiny, with short and sparse appressed pubescence. Funicular segments elongate, thin, first segment twice longer than second, the second funicular segment 1.3 times as long as wide, only slightly shorter than third segment, the rest of funicular segments longer than broad but less clearly as in minor worker. Eyes big, elongate oval, 0.26 length of head. Mandibles broad, with longitudinal sculpture but shiny, with large, blunt apical dent and 4 smaller, blunt denticles on masticatory margin. Mesosoma. Elongate, in dorsal view distinctly constricted in the middle, approximately twice as long as wide, In lateral view pronotum convex, its surface mostly microreticulate with smooth and shiny interspaces, mesonotum at top diffusely micropunctate with shiny interspaces, on sides distinctly microreticulate with shiny background, propodeum microreticulate and shiny, mesonotal groove deep. Whole mesosoma surface covered with very short and sparse appressed pubescence; dorsum lacking erected setae. Waist and gaster. Petiolar scale thin in lateral view but broad in anterior view, widest in the middle then narrowed to base and apex, apical margin triangularly emarginate, apicolaterally lacking erected setae. Gaster shorter than mesosoma, slightly globular, first tergite with diffused microreticulation tending to form transverse striation, subsequent tergites with more evident microreticulation tending to form transverse microstriation, surface shiny, covered with very short and sparse appressed pubescence, distance between hairs distinctly larger than their length. First and second gastral tergite without or at most with 2 short erected setae close to posterior margin and row of short setae at posterior margin, third gastral segment lacking erected setae centrally only with a row of few short setae close to posterior margin. Legs. Ventral surface of fore femora with 2-4 erected setae, of mid and hind femora lacking erected setae.

References

References based on Global Ant Biodiversity Informatics

  • 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.
  • Collingwood C., and H. Heatwole. 2000. Ants from Northwestern China (Hymenoptera, Formicidae). Psyche 103 (1-2): 1-24.
  • Forel A. 1911. Fourmis nouvelles ou intéressantes. Bull. Soc. Vaudoise Sci. Nat. 47: 331-400.
  • Guénard B., and R. R. Dunn. 2012. A checklist of the ants of China. Zootaxa 3558: 1-77.
  • Kiran K., and C. Karaman. 2012. First annotated checklist of the ant fauna of Turkey (Hymenoptera: Formicidae). Zootaxa 3548: 1-38.
  • Petrov I. Z., and C. A. Collingwood. 1992. Survey of the myrmecofauna (Formicidae, Hymenoptera) of Yugoslavia. Archives of Biological Sciences (Belgrade) 44: 79-91.
  • Ran H., and S. Y. Zhou. 2013. Checklist of Chinese Ants: Formicomorph Subfamilies ( Hymenoptera: Formicidae) (III). Journal of Guangxi Normal University : Natural Science Edition 31(1): 104-111.
  • Wheeler W. M. 1913. A revision of the ants of the genus Formica (Linné) Mayr. Bulletin of the Museum of Comparative Zoology 53: 379-565.
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