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Taxonomic Review Of The North American Dung Beetle Genus Melanocanthon Halffter, 1958 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini), W. D. Edmonds
Insecta Mundi
This paper presents a taxonomic review of the genus Melanocanthon Halffter, a group of ball-rolling (telocoprid) dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) endemic to eastern North America. The genus comprises five species, each keyed, diagnosed, illustrated and presented with information on distribution, relationships, and biology: Melanocanthon punctaticollis (Schaeffer), M. granulifer (Schmidt), M. nigricornis (Say), M. bispinatus (Robinson) and Melanocanthon vulturnus Edmonds, new species.
This paper is a sequel to the recent taxonomic study of Boreocanthon (Edmonds 2022). Melanocanthon and Boreocanthon are very closely related, distinct phylogenetic lineages with affinities to the pilularius species group of Canthon (Halffter 1961) and the …
Two New Genera Of Enopliinae, Skelleyus And Divulgoatus (Coleoptera: Cleridae), Weston Opitz
Two New Genera Of Enopliinae, Skelleyus And Divulgoatus (Coleoptera: Cleridae), Weston Opitz
Insecta Mundi
Two new genera, Skelleyus Opitz and Divulgoatus Opitz (Coleoptera: Cleridae: Enopliinae), show unusual antennal development. Funicular antennomeres become shorter as they approach an extensive capitulum. This study involves three taxa, Skelleyus leavengoodi Opitz, new species, Divulgoatus kelleri Opitz, new species, and Divulgoatus discrepans (Gorham).
The two new genera of Cleridae presented in this work show a most unusual antennal development. The greatly extended antennal capitulum is not found in any other member of the Enopliinae. The complete illustrations of the antennae are depicted in the species descriptions.