Polistes (Aphanilopterus) canadensis Linnaeus

Somavilla, Alexandre, Oliveira, Marcio Luiz, Andena, Sergio Ricardo & Carpenter, James Michael, 2018, An illustrated atlas for male genitalia of the New World Polistes Latreille, 1802 (Vespidae: Polistinae), Zootaxa 4504 (3), pp. 301-344 : 307

Polistes (Aphanilopterus) canadensis Linnaeus

Paramere ( Fig. 6A ): (1) about three times longer than wide at the middle and strongly curved; (2) lateral groove shallow, more pronounced on the upper part; (3) parameral spine medium (about 1/7 the total length of paramere), pointed apically with long and dense bristles; (4) parameral lobe developed and widely rounded; (5) inferior portion of paramere narrow, about 0,8 the width at the middle portion. Aedeagus ( Fig. 6B, C ): slender; (1) apical portion with fine denticulation, extended only on the apical portion, lateral margin straight; (2) penis valve weakly dilated and with a slight central entrance (a little more than 1/2 of the total length of apical portion); (3) median expansion widely developed, rounded apex; (4) lateral apodeme directed forward with a weak central projection and shorter than the ventral process, (5) ventral process rounded and expanded in apex; (6) inferior portion of aedeagus weakly curved, almost straight in lateral view. Digitus ( Fig. 6D ): slender; (1) apical process developed, about 1.5 times longer than the digitus base, strongly curved for the side, same width from the base to the apex, (2) apex pointed; (3) anteroventral lobe short and rounded apically; (4) punctation strong and forming a central band around the base of the digitus; (5) evanescent bristles. Cuspis ( Fig. 6E ): slender; (1) apex pointed and tapering abruptly to the end; (2) long and dense bristles on lateral margin and not long in the rest of cuspis; (3) punctation restricted on the lateral lobe; (4) lower part developed with short bristles.

Remarks. Richards (1978: 492) did not describe the male genitalia of this species, but he pointed out that the male is “very like the female but slightly smaller”.

Figures

FIGURE 6. Male genitalia of Polistes (Aphanilopterus) canadensis—A= paramere, lateral view; B= aedeagus, ventral view; C= aedeagus, lateral view; D= digitus, lateral view; E= cuspis, lateral view. Scale bar = 1.0 mm.