
doi: 10.47446/osmia12.3
Until now, Sphex optimus F. SMITH, 1856 has been known from only the holotype which had presumably been collected in Western Africa. Here, new records of a taxon from Central America with phenotypic accordance are presented. Diagnostic characters of S. optimus and the Neotropical species are given and the equivalence of the two taxa is being postulated.
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