Key to Stictoponera of China

This worker key is based on: [[Media:Chen, Z., Lattke, J.E. et al. 2017. Three new species of the genus Gnamptogenys from southern China.pdf|Chen, Z., J.E. Lattke, F. Shi, and S. Zhou. 2017. Three new species of the genus Gnamptogenys (Hymenoptera, Formicidae) from southern China with a key to the known Chinese species. Journal of Hymenoptera Research 54: 93–112 (doi: 10.3897/jhr.54.10816).]]

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Gnamptogenys

1

 * Petiolar node in lateral view low and rounded, the anterior margin curving continuously onto the dorsal margin (Fig. 29A) . . . . . 2


 * Petiolar node in lateral view erect, with distinct anterior and posterior margins and a well-defined dorsal margin (Fig. 29B) . . . . . 3

2
return to couplet #1
 * Body bicolor: head and gaster black, mesosoma orange-ferruginous; subpetiolar process polygonal to triangular with an anteroventral denticle (Fig. 30A) . . . . . Gnamptogenys bicolor


 * Body unicolor: head, mesosoma and gaster orange-ferruginous; subpetiolar process sub-quadrate (Fig. 30B) . . . . . Gnamptogenys binghamii

3
return to couplet #1
 * In lateral view occipital lamella of head forming a blunt triangular denticle (Fig. 31A, B) . . . . . 4


 * In lateral view occipital lamella of head absent; if present, only forming a convex posterior margin, never angular (Fig. 31C, D) . . . . . 5

4
return to couplet #3
 * In lateral view propodeum with short triangular denticle; subpetiolar process triangular (Fig. 32A) . . . . . Gnamptogenys dentihumera


 * In lateral view propodeum without denticle, posterodorsal corner rounded; subpetiolar process polygonal, anteroventral corner bluntly angular, ventral margin straight, posteroventral corner acute (Fig. 32B) . . . . . Gnamptogenys panda

5
return to couplet #3
 * In dorsal view pronotum with a stout denticle on each humeral area (Fig. 33A) . . . . . Gnamptogenys sinensis


 * In dorsal view pronotum without denticle (33B) . . . . . 6

6
return to couplet #5
 * In lateral view propodeum without denticle, posterodorsal corner rounded (Fig. 34A) . . . . . 7


 * In lateral view propodeum with denticle (Fig. 34B) . . . . . 8

7
return to couplet #6
 * In lateral view subpetiolar process triangular or cuneiform (35A); occipital lamella narrow and inconspicuous (Fig. 35C); fourth abdominalsternite is coarsely punctate . . . . . Gnamptogenys nanlingensis


 * In lateral view subpetiolar process polygonal, anteroventral corner angular, ventral margin concave, posteroventral corner rounded (Fig. 35B); occipital lamella well developed, with thin, almost translucent lamella (Fig. 35D); fourth abdominal sternite transversely striate . . . . . Gnamptogenys sichuanensis

8
return to couplet #6
 * Eye medium-sized, with 7 ommatidia on maximum diameter; declivity transversely striate . . . . . Gnamptogenys taivanensis


 * Eye small-sized, with 5 ommatidia on maximum diameter; declivity irregularly rugose . . . . . 9

9
return to couplet #8
 * In lateral view petiolar node roughly subquadrate; subpetiolar process subquadrate (Fig. 36A) . . . . . Gnamptogenys quadrutinodules


 * In lateral view petiolar node roughly trapezoidal; subpetiolar process polygonal, anteroventral corner corner acute, ventral margin straight, posteroventral bluntly angular (Fig. 36B) . . . . . Gnamptogenys coccina