M. Engel, Diego A. Guevara, R. Ospina-Torres, V. González
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The bee genus Psaenythia in northern South America (Hymenoptera: Andrenidae)
The diverse bee genus Psaenythia Gerstaecker (Panurginae: Protandrenini), hitherto known from central and southern South America, is recorded from northern South America for the first time. Two new species are described: Psaenythia diceratops, sp. n., from northeastern
Colombia, and P. guaricoensis, sp. n., from central Venezuela. The males of P. diceratops are noteworthy for possessing prominent apicolateral clypeal horns, elongate scythe-like mandibles, and displaying macrocephaly with strong dimorphism.
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