Polynema

Triapitsyn, Serguei V. & Aquino, Daniel A., 2008, Redescription of Polynemula, with description of a new species of Polynema (Doriclytus) from Argentina (Hymenoptera: Mymaridae), Zootaxa 1818, pp. 56-64 : 60

Polynema (subgenus Doriclytus Foerster, 1847 )

( Figs 6–15 )

Doriclytus Foerster 1847: 226 –227. Type species: Doriclytus vitripennis Foerster , by monotypy. Synonymized under Polynema by Schauff 1984: 52.

Polynema (Doriclytus) : Triapitsyn & Fidalgo 2006: 57 –60 (key, redefinition as a subgenus of Polynema , diagnosis, taxonomic history, list of synonyms, discussion).

Comments. Most of the numerous (and largely undescribed) Neotropical representatives of P. ( Doriclytus ), such as P. (D.) reticulatum (Ogloblin) , have the mesoscutum and scutellum either more or less smooth or with a light cellulate sculpture. The propodeum is smooth, usually without a median carina. Some of the Neotropical species of P. ( Doriclytus ), however, such as, for instance, P. (D.) polychromum (Ogloblin) , have a conspicuously sculptured (reticulate) mesoscutum and scutellum; these can be grouped in the informal polychromum species group, which also includes P. (D.) howdeni (Yoshimoto) from Central America and several undescribed species that would fit in the former genus Restisoma Yoshimoto , synonymized under P. ( Doriclytus ) by Triapitsyn & Fidalgo (2006). The pallidiventre species group of P. ( Doriclytus ), as defined here, has all the features of the subgenus plus conspicuous transverse wrinkles (striations) on the propodeum and two short, incomplete submedial carinae at posterior margin of the propodeum. The propodeal carinae in this species group of P. ( Doriclytus ) are not as prominent as the well-defined submedial propodeal carinae in Polynemula or Platyfrons , but suggest links with these genera. The pallidiventre species group includes P. (D.) pallidiventre (Ogloblin) , the type species of the former subgenus Notopolynema , and also a new species from Argentina described below.

Figures

FIGURES 6 – 10. Polynema (Doriclytus) pallidiventre, female (from Nova Teutonia, Santa Catarina, Brazil). 6. Antenna. 7. Head (frontal view). 8. Body (without head). 9. Propodeum. 10. Fore and hind wings.

FIGURES 11 – 13. Polynema (Doriclytus) nupogodi, sp. n., female (holotype). 11. Antenna. 12. Mesosoma. 13. Forewing.

FIGURES 14, 15. Polynema (Doriclytus) nupogodi, sp. n., male (paratype). 14. Head and antenna. 15. Genitalia.