Key to Oxyepoecus of Paraguay

This worker key is based on: Delsinne, T.D., Mackay, W., Wild, A., Rosin, Y. & Leponce, M. 2011. Distribution and diversity of the cryptic ant genus Oxyepoecus in Paraguay, with descriptions of two new species. Psyche 2012: 8 pp. Article ID 594302. doi:10.1155/2012/594302

1

 * Cephalic dorsum entirely sculptured . . . . . 2


 * Cephalic dorsum completely smooth or with at least a smooth median frontal stripe . . . . . 4

2
return to couplet #1
 * Mesopleuron and lateropropodeum covered by longitudinal costae . . . . . 3


 * Mesopleuron and lateropropodeum irregularly reticulate and punctuate . . . . . Oxyepoecus reticulatus

3
return to couplet #2
 * Cephalic dorsum with dense costulae, subpostpetiolar process shaped as transverse crest, triangular in side view, not bidentate . . . . . Oxyepoecus rastratus


 * Cephalic dorsum with reticulated costulae, subpostpetiolar process prominent and bidentate . . . . . Oxyepoecus bidentatus

4
return to couplet #1
 * Eyes large, with more than 40 ommatidia in total . . . . . Oxyepoecus inquilinus


 * Eyes small, with about 20 ommatidia in total . . . . . 5

5
return to couplet #4
 * Subpostpetiolar process prominent and bidentate with anteriormost processmuch larger than posterior tooth . . . . . Oxyepoecus bruchi


 * Subpostpetiolar process with two subparallel crests of approximately equal size . . . . . 6

6
return to couplet #5
 * Promesonotum nearly entirely smooth and glossy . . . . . Oxyepoecus vezenyii


 * Promesonotum covered with longitudinal striae . . . . . Oxyepoecus striatus