Magnolia Press, Zootaxa, 2(4604), p. 359, 2019
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Chaenotetrastichus neotropicalis sp. nov. from the Atlantic Forest, Brazil, is described and illustrated. This new species is associated with a species of the pompilid wasp Auplopus Spinola (Hymenoptera: Pompilidae) and it represents the first record of the genus for the Neotropics. A key for the extant species of the genus Chaenotetrastichus Graham is also presented.