Hippomelanina
Holynski, 1993
Genus Guides
4Hippomelanina is a subtribe of metallic wood-boring beetles within the Buprestidae, established by Holynski in 1993. It comprises at least four —Barrellus, Gyascutus, Hippomelas, and Prasinalia—and approximately 15 described . Members of this subtribe are classified within the tribe Dicercini and Chrysochroinae. The subtribe represents a relatively small but distinct lineage within the diverse jewel beetle fauna.
Pronunciation
How to pronounce Hippomelanina: //ˌhɪpoʊˌmɛləˈnaɪnə//
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Identification
Distinguished from related subtribes within Dicercini by morphological characteristics established in Holynski's 1993 revision. The subtribe includes with varied body forms: Gyascutus tend to be robust and somewhat flattened; Hippomelas species often exhibit metallic coloration; Barrellus and Prasinalia represent smaller, more specialized forms. Species-level identification requires examination of specific structural features including prosternal processes, elytral , and genitalia.
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Distribution
within Hippomelanina occur in North America. The Gyascutus ranges across western and southwestern regions; Hippomelas is primarily western; Barrellus and Prasinalia have more restricted distributions. Specific range boundaries for most species remain incompletely documented.
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Taxonomic history
The subtribe was established by Roman B. Holynski in 1993 as part of his systematic work on Buprestidae. It was created to accommodate certain previously placed within Dicercini that share derived characteristics distinguishing them from other dicercine lineages.
Genus composition
The four recognized are: Barrellus (established 1996, 2 ), Gyascutus (established 1858, ~6 species), Hippomelas (established 1837, ~5 species), and Prasinalia (established 1909, 2 species). Species counts are approximate and subject to revision.
Research needs
The subtribe remains poorly studied compared to other buprestid lineages. Biological data including larval associations, requirements, and detailed distribution records are largely lacking for most .