Polistes (Aphanilopterus) mexicanus Bequaert

Paramere (Fig. 15A): (1) about three times longer than wide at the middle; (2) lateral groove deep, more pronounced on the upper part; (3) parameral spine long (about 1/6 the total length of paramere), pointed apically with long and sparse bristles; (4) paramere lobe developed and rounded; (5) inferior portion of paramere narrow, about half the width at the middle portion. Aedeagus (Fig. 15B, C): slender; (1) apical portion with fine denticulation, extended only on the apical portion, lateral margin straight; (2) penis valve widely dilated and with a slight central entrance (about 1/3 of the total length of apical portion); (3) median expansion developed, rounded apex; (4) lateral apodeme directed forward and almost the same size of the ventral process, (5) ventral process rounded and dilated in apex; (6) inferior portion of aedeagus curved, in lateral view. Digitus (Fig. 15D): slender; (1) apical process developed, about twice longer than the digitus base, same width from the base to the apex, (2) apex rounded; (3) anteroventral lobe short and rounded apically; (4) punctation strong, forming a central band around the base of the digitus; (5) evanescent bristles. Cuspis (Fig. 15E): slender; (1) apex pointed and tapering abruptly to the end; (2) long and dense bristles on cuspis, mainly on lateral margin; (3) punctation restricted on the lateral lobe; (4) lower part developed with short bristles.

Remarks. Richards (1978) did not mention the male genitalia for this species, which he treated as a subspecies of P. kaibabensis.