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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Scarab, Stag and Bess Beetles (Scarabaeoidea) » Bess Beetles (Passalidae) » Odontotaenius » Horned Passalus (Odontotaenius disjunctus)
Photo#96187
Horned Passalus--antenna - Odontotaenius disjunctus - male
Copyright © 2007 Cotinis

Horned Passalus--antenna - Odontotaenius disjunctus - Male
Parkwood, Durham County, North Carolina, USA
January 15, 2007
Size: 37 mm
Ventral view of the left antenna, which is about 7 mm long if straightened out. I can see 10 segments, a family characteristic. Distinctive details of antennae:
  • antennae in this family have a 3-segmented club
  • lamellae (plate-like segments) cannot be closed, like those of the Scarabaeidae and related families, resembling antennae of stag beetles, Lucanidae
  • antennae are not elbowed (geniculate) like those of the Lucanidae, but there is a slight bend

Images of this individual: tag all
Horned Passalus - Odontotaenius disjunctus - male Horned Passalus--mouthparts - Odontotaenius disjunctus - male Horned Passalus--head, pronotum - Odontotaenius disjunctus - male Horned Passalus--front leg - Odontotaenius disjunctus - male Horned Passalus--middle leg - Odontotaenius disjunctus - male Horned Passalus--rear leg - Odontotaenius disjunctus - male Horned Passalus--antenna - Odontotaenius disjunctus - male
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Contributed by Cotinis on 23 February, 2007 - 9:54am
Last updated 17 May, 2007 - 12:07pm

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