Brachysomus, Schoenherr, 1823:, 1124
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publication ID |
https://doi.org/ 10.11646/zootaxa.5193.1.1 |
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publication LSID |
lsid:zoobank.org:pub:78BDA3C9-8B2E-444F-AB50-1A64FB3F8786 |
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DOI |
https://doi.org/10.5281/zenodo.7140457 |
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persistent identifier |
https://treatment.plazi.org/id/0383A324-4637-FFDA-FF6C-A25EFA3A6FF0 |
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treatment provided by |
Plazi |
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scientific name |
Brachysomus |
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Brachysomus View in CoL s. str.: B. hirtus group
1. Setae on elytra strongly erect and long (as long as interstrial width). Epifrons with deep median longitudinal sulcus, separated from vertex by distinct transverse depression. Aedeagus attenuate, with apex rounded ( Fig. 196A View FIGURE 196 ), obtuse, or acuminate ( Fig. 195A View FIGURE 195 ). Body length 1.75–2.60 mm....................................................................... 2
- Setae on elytra suberect and short (as half interstrial width). Epifrons with shallow median longitudinal sulcus, separated from vertex by slight transverse depression. Aedeagus evenly acute ( Fig. 198A View FIGURE 198 ). Body length 1.50–2.37 mm... B. subtilis Yunakov
2. Eyes weakly convex. Rostrum subconical ( Fig. 196C View FIGURE 196 ). Body fully covered with wide scales ( Fig. 196G View FIGURE 196 ). Apex of median lobe rounded ( Fig. 196A View FIGURE 196 )..................................................................... B. dubius Yunakov
- Eyes hemispherical. Rostrum parallel-sided, if noticeably narrowing from base to middle part, then eyes always very strongly convex. Scales narrowly oval and bifurcate ( Fig. 194J View FIGURE 194 ). Apex of median lobe obtuse or nipple-shaped.................. 3
3. Tibiae in male strongly mucronate ( Fig. 197H View FIGURE 197 ). Rostrum in female narrowing towards distal end of basal half ( Fig. 197E View FIGURE 197 ). Aedeagus attenuate, its apex truncate ( Fig. 197A View FIGURE 197 ). Collum of spermatheca strongly curved ( Fig. 197C View FIGURE 197 )................................................................................................... B. mucronatus Yunakov
- Tibiae in male moderately mucronate ( Fig. 194H View FIGURE 194 , 196F View FIGURE 196 ). Rostrum parallel sided in both sexes. Aedeagus strongly narrowing apically, its apex simple or nipple-shaped. Collum of spermatheca not strongly curved............................... 4
4. Body sparsely scaled. Male 5th ventrite distinctly flattened in apical third. Eyes weakly convex ( Fig. 194E View FIGURE 194 ). Aedeagus weakly sclerotized, evenly narrowing apically, obtuse, as long as 1/3 of body length ( Fig. 194A View FIGURE 194 ). Spermatheca ( Fig. 194C View FIGURE 194 )............................................................................................ B. hirtus (Boheman)
- Body densely scaled. Male 5th ventrite convex at apical third. Eyes strongly convex ( Fig. 195D View FIGURE 195 ).Aedeagus strongly sclerotized, sharply narrowing apically, attenuate, apex nipple-shaped, as long as 1/2 of body length. Spermatheca ( Fig. 195C View FIGURE 195 )............................................................................................. B. fasciatus Stierlin
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.