Key to Oxyopomyrmex workers

This worker key is based on: Salata, S. and Borowiec, L. 2015. A taxonomic revision of the genus Oxyopomyrmex André, 1881 (Hymenoptera: Formicidae). Zootaxa. 4025(1):1-66.

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1

• Western Mediterranean region and Canary Islands . . . . . 2

• Eastern Mediterranean region and the Near East . . . . . 8

2

return to couplet #1

• Longitudinal striae on the head limited to the frons and sometimes reaching the anterior margin of head . . . . . 3

• Longitudinal striae covering entire face . . . . . 5

3

return to couplet #2

• Lateral surfaces of thorax distinctly punctate, sometimes with light longitudinal striae, dorsal surface of pronotum distinctly punctate and with transverse striae; Tunisia, Algeria . . . . . Oxyopomyrmex emeryi

• Lateral surfaces of thorax rugulose to smooth with longitudinal striae, dorsal surface of pronotum never punctate and with transverse striae . . . . . 4

4

return to couplet #3

• Pronotum shiny, smooth or microreticulate; striae, if present, fine, located on the side and posterior edges of the pronotum; dorsal surface of mesonotum shiny and with sparse microreticulation; Canary Is. . . . . . Oxyopomyrmex insularis

• Pronotum rugulose with distinct striae that are longitudinal or transverse and cover entire surface; dorsal surface of mesonotum always rugulose; Algeria, Egypt, Saudi Arabia, Tunisia . . . . . Oxyopomyrmex nitidior

5

return to couplet #2

• Center of frons with small, smooth area lacking striae, or striae in the center of frons sparse and the surface between striae smooth and shiny; area between rugae and striae on dorsal surface of pronotum smooth and shiny; Algeria, Egypt, Saudi Arabia, Tunisia . . . . . Oxyopomyrmex nitidior

• Center of frons rugulose with longitudinal, uniformly distributed striae; area between striae and rugae on dorsal surface of pronotum and mesonotum always with microsculpture, not smooth . . . . . 6

6

return to couplet #5

• Head always wider than long (HI>100); Spain: mainland . . . . . Oxyopomyrmex magnus

• Head longer than wide (HI<100) . . . . . 7

7

return to couplet #6

• Dorsal and lateral surfaces of the pronotum rugulose with distinct longitudinal striae on entire surface, HI: 97.1 ± 1.4 (95.7-99.1); SI2: 68.3 ± 1.3 (66.0-70.0); Tunisia . . . . . Oxyopomyrmex nigripes

• Dorsal suface of pronotum distinctly rugulose; striation, if present, never covering entire surface of pronotum, lateral surfaces distinctly rugulose, sometimes with thin longitudinal striae, HI: 92.8 ± 2.1 (87.5-96.5); SI2: 73.2 ± 1.7 (70.1-77.4); Algeria, France: mainland, Italy: Sicily, Malta, Morocco, Portugal, Spain: mainland, Tunisia . . . . . Oxyopomyrmex saulcyi

8

return to couplet #1

• Dorsal suface of pronotum at least partly punctate with or without striation . . . . . 9

• Dorsal suface of pronotum rugose to rugulose, never punctate; with or without striation . . . . . 13

9

return to couplet #8

• Center of head with longitudinal striae, lateral surfaces rugulose to punctate or smooth . . . . . 10

• Longitudinal striation covering entire surface of head . . . . . 11

10

return to couplet #9

• Dorsal suface of pronotum punctate, lacking striae; gena slightly rugulose; Israel, Lebanon, Palestine, Syria . . . . . Oxyopomyrmex oculatus

• Dorsal suface of pronotum punctate with transverse striae, gena smooth and shiny; Tunisia, Algeria . . . . . Oxyopomyrmex emeryi

11

return to couplet #9

• Dorsal surface of abdominal tergites dull, bearing dense, appressed microsetae along with a sparse layer of long, erect setae, gena without striation; Israel . . . . . Oxyopomyrmex negevensis

• Abdomen shiny, bearing long erect to semierect setae, gena with longitudinal striae . . . . . 12

12

return to couplet #11

• Gena with longitudinal striae, shiny; lateral surfaces of pronotum with longitudinal striae; HTI2>20.4, Greece: Dodecanese, Turkey . . . . . Oxyopomyrmex polybotesi

• Gena dull, rugulose, with thick longitudinal striae; lateral surfaces of the pronotum punctate to rugulose; HTI2 < 20.1, Cyprus . . . . . Oxyopomyrmex pygmalioni

13

return to couplet #8

• Center of frons with small, smooth area lacking striae or striae in center of frons sparser, with surface between striae smooth and shiny, body brown; Algeria, Egypt, Saudi Arabia, Tunisia . . . . . Oxyopomyrmex nitidior

• Center of frons rugulose with longitudinal, uniformly distributed striae, body black . . . . . 14

14

return to couplet #13

• In profile, a border between dorsal and posterior surfaces of the promesonotum sharply curved, gena always with fine longitudinal striae, dorsal surface of propodeum rugulose to finely rugulose, never smooth, with or without striation, lateral surfaces of mesonotum punctate with longitudinal striaeat the posterior edge; Bulgaria, Greece: Crete, Dodecanese, mainland; Macedonia, Turkey . . . . . Oxyopomyrmex krueperi

• In profile, a border between dorsal and posterior surfaces of the promesonotum never sharply curved, gena without longitudinal striae, microreticulate, center of propodeum smooth and shiny, lateral surfaces of mesonotum with gently reticulation; Greece: Crete . . . . . Oxyopomyrmex laevibus