Key to Yunodorylus

This worker key is based on: [[Media:Borowiec 2009.pdf|Borowiec, M.L. 2009. New species related to Cerapachys sexspinus and discussion of the status of Yunodorylus. Zootaxa. 2069:43-58.]]

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 * Yunodorylus
 * Cerapachys sexspinus species group (=Yunodorylus)

1

 * Antennae 11-segmented. In side view, abdominal segment III (gastral I) is small and narrow compared to the following segment, with a rounded anterior face. Malaysia (Sarawak) . . . . . Yunodorylus paradoxus


 * Antennae 12-segmented. In side view, abdominal segment III (gastral I) is not clearly narrowed, having a well differentiated, perpendicular anterior face of both posttergite and poststernite . . . . . 2

2
return to couplet #1
 * Mandibles elongate with masticatory margins narrow and basal margin separated from anterior margin of clypeus by a wide gap at full closure. Malaysia (Sarawak) . . . . . Yunodorylus doryloides


 * Mandibles triangular with basal margins not separated from anterior margin of clypeus by a wide gap at full closure . . . . . 3

3
return to couplet #2
 * Sides of mesosoma and petiole with microreticulum easily recognizable at 50X magnification. Subpetiolar process long, curved, and claw-like. Vietnam . . . . . Yunodorylus eguchii


 * Sides of mesosoma and petiole at 50X magnification appearing matted, not recognizable as microreticulum. Subpetiolar process smaller, with ventral margin drawn into a triangle directed slightly posteriorly. China (Yunnan) . . . . . Yunodorylus sexspinus