Brachysomus (Hippomias)
Creators: name: Yunakov, Nikolai
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy

description: Hippomias: B. ponticus group   
 1. Elytra covered with lanceolate scales occasionally with bidentate apical margin.................................... 2   
 - Elytra covered with ovate, broad-ovate or round scales with bidentate or multidentate apical margin.................... 3   
 2. Elytral interstriae with rows of narrow, long, suberect setae as long as interstrial width. Transverse depression separating epifrons from vertex very weak.......................................................... B. boroveci Yunakov   
 - Elytral interstriae with rows of spatulate, short, suberect setae, shorter than interstrial width. Transverse depression separating epifrons from vertex distinct............................................................ B. simulans Yunakov   
 3. Fore tibiae in male strongly curved. Lateral margins of vertex convex, forming ridge-shaped structure above eyes........................................................................................... B. curvimanus Yunakov   
 - Fore tibiae in male straight. Lateral margins of vertex flat, not forming ridge-shaped structure above eyes............... 4   
 4. Eyes weakly convex. Epifrons flat............................................................ B. oertzeni Faust   
 - Eyes strongly convex. Epifrons longitudinally convex........................................................ 5   
 5. Internal margin of hind tibiae in male, blade-sharpened........................................ B. armatus Yunakov   
 - Internal margin of hind tibiae in male, not blade-sharpened.................................................... 6   
 6. Base of 10th male elytral interval strongly depressed. Internal sac with narrow spiculate field..................................................................................................... B. samos Yunakov & Germann   
 - Base of 10th male elytral interval flat. Internal sac with wide spiculate field....................................... 7   
 7. Pronotum densely covered with V-shaped scales, elytra fully covered with broad-ovate scales. Body with degraded brownspotty scale pattern...................................................................... B. assingi Yunakov   
 - Both pronotum and elytra fully covered with broad-ovate scales. Coloration of scale vestiture monochrome, without spotty pattern.............................................................................................. 8   
 8. Scales overlapping. Elytral interstriae with one row of thin, short setae, 1/2 as long as interstrial width; epifrons with median longitudinal sulcus; apex of median lobe rounded........................................... B. commutatus Košťál   
 - Scales not overlapping. Elytral interstriae with one row of thin, long setae, as long as interstrial width; epifrons without median longitudinal sulcus; apex of median lobe acute............................................. B. ponticus Apfelbeck
description: Published as part of Yunakov, Nikolai, 2022, A review of the genus Brachysomus Schoenherr (Coleoptera: Curculionidae: Entiminae), pp. 1-165 in Zootaxa 5193 (1) on pages 18-19, DOI: 10.11646/zootaxa.5193.1.1, http://zenodo.org/record/7144389