Centris quadrimaculata Packard, 1869

Centris 4-maculata PACKARD, 1869: 57 (Senior synonym of C. fusciventris Mocsáry, 1899).

Type data. This species was proposed based on a single female specimen. The holotype has the following data label: [red label] Type. [printed] 558 [handwritten]\ C. 4-maculata Pack Napo & Maranon r. Orton [handwritten] Brazil [printed]\ MCZ-ENT 00000558 QR code [printed] (MCZ).

Type locality. The type locality is cited as “Route along the Napo and Maranon Rivers”, but in the label of the holotype says “ Brazil ”. As mentioned above, the Brazilian specimens described by Packard were collected on the “upper Amazon, namely the Maranon River, and its tributary the Napo”.

Arturo Roig-Alsina. Arturo Hernán Roig-Alsina is an Argentinean entomologist, curator of the insect collection of the MACN. Most of his research is focused on solitary and cleptoparasitic bees, but he also had published several articles on wasps, as well as in other groups of arthropods.

Roig-Alsina’s Centris bees. Despite his prolific research activity and the large number of published articles, so far Roig-Alsina has only published a single paper on Centris (ROIG-ALSINA, 2000) . In the revision of the species of the genus that occur in Argentina, he included the description of six new species, mainly from the north of the country.