Excretory canals at the inner surface of the tyloid-like structures on the antennomere 6 of Nomada fucata ♂ (a1, a2) and antennomere 5 of Nomada lathburiana ♂ (b1, b2). SEM micrographs. Scale unit: 0.03mm (a1), 0,004mm (a2), 0.06 mm (b1), 0.01 mm (b2).

 
 
  Part of: Schindler M, Hofmann MM, Wittmann D, Renner SS (2018) Courtship behaviour in the genus Nomada – antennal grabbing and possible transfer of male secretions. Journal of Hymenoptera Research 65: 47-59. https://doi.org/10.3897/jhr.65.24947