Brachysomus kratkyi, Yunakov, 2022

Yunakov, Nikolai, 2022, A review of the genus Brachysomus Schoenherr (Coleoptera: Curculionidae: Entiminae), Zootaxa 5193 (1), pp. 1-165 : 27

Brachysomus (Brachysomus) kratkyi Białooki, 2007

Figs. 185A–D , 235B

Brachysomus kratkyi Białooki, 2007: 154 . T ype locality: Hungary, Mátraszőlős env.

Redescription. For redescription details see Białooki (2007).

Diagnosis. This species is very similar to B. hispidu s and differs by the sparse, very narrow recumbent scales, erect setae 3x shorter than width of interstriae and wider median lobe. From B. fremuthi it differs by the robust antennal funicle and more swollen scape, the very narrow and sparse recumbent scales on the elytra and pronotum. The shape of the median lobe is generally as in B. fremuthi but the endophallic sclerite is larger and longer and the parameres are divided at the base. The shape of the spermatheca is variable and similar to B. hispidu s, with the ramus moderately small. From B. subnudus it differs by the broad median lobe (including apodemes 5.7x as long as wide).

Distribution. Hungary.

Bionomics. Brachysomus kratkyi inhabits leaf litter in Quercus and Fagus forests ( Białooki, 2007; pers. comm. A. Podlussány)

Type material. Holotype, ♂ (KJc): ‘H-Hungaria bor. Mátraszőlős, 30.05 / 2 km N of Pásztó lgt. J. Krátký 2000’, ‘ Brachysomus kratkyi sp. n. Holotype / des. P. Białooki 2005’. Paratypes: 46 exx., labeled as holotype (KJc, PBc).

Additional material examined. HUNGARY: 1♂, 1♀, ‘Nógrád megye Mátra, Szurdokpüspöki, Kis-Koncsúr 19.vii.1998, L. Oszonics leg.’ (HNHM).

Figures

FIGURE 185. Brachysomus kratkyi: A: aedeagus, dorsal and lateral view; B: tegmen; C: tergite VIII with alical process (frontal wiew); D: spermatheca. Brachysomus lituratus (Reitter, 1884) comb. n.: E: aedeagus, dorsal and lateral view; F: tegmen; G: tergite VIII; H: spermatheca; I: scales of elytra.

FIGURE 235. Occurrence map of Brachysomus: A: B. echinatus; B: Brachysomus s. str.