FIGURES 18–21 in Unravelling cryptic species diversity in eastern Nearctic paper wasps, Polistes (Fuscopolistes), using male genitalia, morphometrics and DNA barcoding, with descriptions of two new species (Hymenoptera: Vespidae)

FIGURES 18–21. Paramere and volsella, inner view: 18. Polistes metricus (MD, Anne Arundel Co.), 19. P. rubiginosus (MO, Callaway Co.), 20. P. hirsuticornis sp. nov. (MD, Anne Arundel Co.), 21. P. parametricus sp. nov. (MD, Prince George's Co.).Published as part of Buck, Matthias, Cobb, Tyler P., Stahlhut, Julie K. & Hanner, Robert H., 2012, Unravelling cryptic species diversity in eastern Nearctic paper wasps, Polistes (Fuscopolistes), using male genitalia, morphometrics and DNA barcoding, with descriptions of two new species (Hymenoptera: Vespidae), pp. 1-48 in Zootaxa 3502 on page 41, DOI: 10.5281/zenodo.21019