Key to Chinese species of Anochetus

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This worker key is based on: Chen, Z., Yang, Z., Zhou, S. 2019. Review of the ant genus Anochetus Mayr, 1861 (Hymenoptera, Formicidae) from China, with revival of the valid status of Anochetus gracilis. Journal of Hymenoptera Research 68: 49–74 (DOI 10.3897/jhr.68.30784).

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1

  • Apical portion of mandible with three strong teeth; inner mandibular margin without denticles except preapical tooth . . . . . 2
  • Apical portion of mandible only with two distinct teeth; inner mandibular margin with some distinct denticles . . . . . 6

2

return to couplet #1

  • Scape surpassing to posterior corner of head by about its 1/7 length; large species (TL ≥ 8.35); mesosoma comparatively thinner . . . . . Anochetus longus
Anochetus longus F3 G150887 H.jpg
Anochetus longus F3 G150887 P.jpg
  • Scape not or just reaching to posterior corner of head; small species (TL ≤ 6.0); mesosoma comparatively stouter . . . . . 3

3

return to couplet #2

  • The maximum diameter of eye narrower than the width of scape at it midlength; the junction between propodeal dorsum and declivity forming a pair of denticles laterally; pronotum smooth and shining . . . . . Anochetus subcoecus
Anochetus subcoecus focol0345 h 1 high.jpg
Anochetus subcoecus focol0345 p 1 high.jpg
  • The maximum diameter of eye broader than the width of scape at it midlength; the junction between propodeal dorsum and declivity rounded, not forming a pair of dents laterally; pronotum strongly rugose . . . . . 4

4

return to couplet #3

  • Pronotal disc longitudinally striate; posterior half of pronotum to mesonotum straight; dorsal margin of petiolar node concave in anterior view . . . . . Anochetus lanyuensis
Anochetus lanyuensis F2 H.jpg
Anochetus lanyuensis F2 P.jpg
  • Pronotal disc irregularly striate; posterior one third of pronotum to mesonotum weakly convex or weakly concave at metanotal groove; dorsal margin of petiolar node weakly convex in anterior view . . . . . 5

5

return to couplet #4

  • Head slightly longer than broad (CI 95); mesonotum transversely striate; petiole thick, twice as high as long . . . . . Anochetus madaraszi
Anochetus madaraszi casent0281885 h 1 high.jpg
Anochetus madaraszi casent0281885 p 1 high.jpg
  • Head distinctly longer than broad (CI 89); mesonotum transversely retirugose; petiole thin, 3.7 times as high as long . . . . . Anochetus graeffei
Anochetus graeffei casent0172373 head 1.jpg
Anochetus graeffei casent0172373 profile 1.jpg

6

return to couplet #1

Satria viet et al-2017-A.jpg
Satria viet et al-2017-5 B.jpg
  • Middle portion of pronotum smooth and shining . . . . . 7

7

return to couplet #7

  • In full-face view, inner mandibular margin with about 11 denticles, preapical five denticles equal-sized; scapes with sparse suberect hairs; mesonotum with a strong transverse ridge anteriorly, situated higher than pronotum; metapleuron striate . . . . . Anochetus medogensis
Anochetus medogensis F5 G160654 H.jpg
Anochetus medogensis F5 G160654 P.jpg
  • In full-face view, inner mandibular margin with 5–8 denticles, preapical denticle distinctly larger than the others; scapes with abundant decumbent hairs; mesonotum without anterior transverse ridge, metapleuron smooth and shining . . . . . Anochetus risii
Anochetus risii casent0281886 h 1 high.jpg
Anochetus risii casent0281886 p 1 high.jpg