Hab. Aru.
This species would, according to the views of some Hymenopterists, belong to the genus Rhopalum of Kirby.
Group SOLITARY WASPS.
Fam. EUMENIDÆ, Westw.
Gen. Eumenes, Latr.
1. Eumenes arcuata, Fabr. Syst. Piez. 287. 11.
Hab. Key Island; coast of New Guinea (Triton Bay); Australia.
Gen. Pachymenes, Sauss.
1. Pachymenes viridis. P. lætè viridis; facie pube argentato-albâ tectâ; alis hyalinis.
Female. Length 8 lines. Bright green; the head, thorax, and basal segment of the abdomen rugose, the rest of the abdomen finely and very closely punctured; the clypeus thinly covered with a fine silvery-white pubescence, its apex produced and truncate. Thorax: the metathorax rounded behind, a deep longitudinal impressed line in the middle, and with fine silvery down at the sides and behind; the wings subhyaline, with a fuscous stain along the anterior margin of the superior pair; the legs rufo-piceous; the coxæ, femora, and tibiæ more or less tinged with green.