Schematic representation of the terminology used to describe the male first gonopod (G1) of some Tehuana species using as examples the G1 of A T. lamellifrons B T. veracruzana C T. lamothei D T. jacatepecensis E T. poglayenorum F T. chontalpaensis. A–C mesial view D, E distal view F lateral view. Scale bars: 1 mm (A, B, C, F); 0.5 mm (D, E). Abbreviations: ac, apical cavity; cc, central crest; cmp, caudo-marginal projection; ccmp, distal crest of the caudo-marginal projection; cdc, caudal distal crest; cpl, cephalic border of the proximal lobe; dl, distal lobe; dmp, distal border of the mesial process; hc, internal carena height; hdl, distal lobe height; hpl, proximal lobe height; ic, internal carena of the proximal lobe; imp, internal angle of the mesial process; ldc, lateral distal crest; ldl, distal lobe length; lmp, lateral border of the mesial process; lpl, proximal lobe length; ls, lateral spine; mc, medial constriction; mdc, mesial distal crest; mdl, meso-distal lobe; mp, mesial process; mpl, marginal plate; ms, marginal suture; nmp, notch of the caudo-marginal projection; pl, proximal lobe; sf, spine field; sp, spermatic pore.