Sphex nitidiventris

Smith, F., 1859, Catalogue of hymenopterous insects collected by Mr. A. R. Wallace at the Islands of Aru and Key., Journal of the Proceedings of the Linnean Society of London, Zoology 3, pp. 132-158 : 158

4. Sphex nitidiventris .

S. niger; abdomine nigro-caeruleo, laevigata, nitido; alis fuscis.

Female. Length 12 lines. Black; the face with silvery pubescence, and thinly covered with long black hairs; the clypeus with a central longitudinal carina at the base, which terminates at the middle, from whence to the anterior margin is a broad, smooth, shining space. Thorax shining and finely punctured; the metathorax opake and covered with long, loose, black pubescence; the legs shining, the posterior tibiae with shining grey pile within; wings brown, darkest at their base. Abdomen blue, and very smooth and shining, oblongovate; the apical segment vertical.

Hab. Aru.