Subgenus Polynema (Dorypolynema Hayat & Anis, 1999)

Remarks. Within Polynema sensu lato, the anteriorly swollen petiole is a feature that is not restricted only to species of P. (Dorypolynema). It also occurs, for example, in a native species of P. ( Polynema) from Hawaii Island, Hawaiian Islands (specimens in UCRC). Swollen and wide, sometimes somewhat flattened petioles are usually associated with long ovipositors, as in P. (Doriclytus) vitripenne (Foerster) (Triapitsyn & Fidalgo 2006), P. (Dorypolynema) spp. (Triapitsyn & Aquino 2010), and Kalopolynema spp. (Triapitsyn & Berezovskiy 2002b), but not always—in one Hawaiian species of P. ( Polynema) with a swollen petiole (specimens in UCRC) the ovipositor is short.

A key to both sexes of the species of P. (Dorypolynema) in the world is provided below to facilitate their recognition, which is updated from Triapitsyn & Aquino (2010). Males of an undescribed P. (Dorypolynema) species from Taipei City, Taiwan, of which only one poorly mounted female specimen on a slide is available (Triapitsyn 2018a, p. 160), are unknown. Excluded from the key is another undescribed species of P. (Dorypolynema) from Madagascar, mentioned by Triapitsyn & Aquino (2010, p. 63), which will be dealt with separately. Two species are treated following the key to species, P. (Dorypolynema) mendeli, the only species of P. (Dorypolynema) known from Australia, and P. (Dorypolynema) mboroense (Risbec) comb. n. from Acmopolynema Ogloblin, from Africa.