Genus Pachodynerus

revised in(1); our fauna reviewed in(2) (nomenclature obsolete)

Pachodynerus Saussure 1870

5 spp. in our area(2), 45 total(3)

P. californicus - a restricted species known only from southern California and Baja California, Mexico. The markings are ivory to light yellow, with abdominal bands restricted to the margins of T1 and T2.

P. erynnis - a distinctive species and our only red-marked species of Pachodynerus. It can be separated from red-and-black species in other genera by the lack of a reddish spot behind the eyes.

P. guadulpensis - a yellow-marked species with abdominal bands on all segments. It can be separated from the cryptic P. nasidens / P. pulverulentus pair by the additional band on T1.

P. nasidens - a yellow-marked species with abdominal bands beginning on T2. Often not separable from P. pulverulentus from photos where the two co-occur in Texas and Arizona. The only of the pair to occur in CA and NV. Under microscopy(1)(2): ocellar area with distinct ridges, fore femur with a distinct longitudinal carina, scutum with dense golden pubescence, abdomen with punctation on T2 throughout gradually decreasing toward the anterior.

P. pulverulentus - a yellow-marked species with abdominal bands beginning on T2. Often not separable from P. nasidens from photos where the two co-occur in Texas and Arizona. The only of the pair to occur in FL. Under microscopy(1)(2): ocellar area lacking ridges, fore femur lacking a carina, scutum with sparse silvery-yellow pubescence, abdomen with punctation on T2 restricted to the apical margin (otherwise impunctate).

New World, most diverse in S. America(1)