Microdera, Eschscholtz, 1831

Bekchanov, Norbek Kh., Nabozhenko, Maxim V., Bekchanov, Khudaybergan U. & Bekchanova, Mokhira Kh., 2025, A review of the genus Microdera Eschscholtz, 1831 (Coleoptera: Tenebrionidae) of Uzbekistan, Zootaxa 5590 (4), pp. 451-480 : 477-478

publication ID	https://doi.org/10.11646/zootaxa.5590.4.1
publication LSID	lsid:zoobank.org:pub:3CAF62D6-80B5-437D-BBF1-BDB46E9C877F
DOI	https://doi.org/10.5281/zenodo.14962892
persistent identifier	https://treatment.plazi.org/id/03D42163-EC31-BF73-FF7F-F9A7FA4FF2C8
treatment provided by	Plazi
scientific name	Microdera
status

Treatment

Key to species of the genus Microdera of Uzbekistan

1. Apex of abdominal ventrite 5 with vertical plate, that can have deep or shallow median notch ( Figs 8E View FIGURE 8 , 9G View FIGURE 9 , 11F View FIGURE 11 , 15G View FIGURE 15 , 20C View FIGURE 20 ). 2

- Apex of abdominal ventrite 5 without vertical plate ( Figs 1I View FIGURE 1 , 3G View FIGURE 3 , 4F View FIGURE 4 , 13F View FIGURE 13 )........................................ 6

2. Disc of pronotum flattened medio- basally ( Fig. 19A, B View FIGURE 19 ); disc outline in lateral view emarginated in the basal portion ( Fig. 19F View FIGURE 19 ). Elytra with opaque lateral sides and apical portion, where puncturation disappears. Metatibiae opaque from extensor side, with very coarse and dense merged puncturation; appear rough ( Fig. 19G View FIGURE 19 )......................... M. uzbekistanica sp. nov.

- Disc of pronotum evenly convex. Elytra without opaque areas, puncturation fine and sparse, but distinct on all surface. Metatibiae shiny from extensor side, with fine and sparse punctures ( Figs 8B View FIGURE 8 , 10D View FIGURE 10 , 12A View FIGURE 12 , 15I View FIGURE 15 )......................... 3

3. Prothoracic hypomera with large and coarse transverse wrinkles ( Fig. 15H View FIGURE 15 ). Lateral margin of head (dorsal view) protruded and angular at level of eye-temple connection ( Fig. 15C View FIGURE 15 )............................................. M. semenoviana

- Prothoracic hypomera not wrinkled ( Figs 7F View FIGURE 7 , 10A View FIGURE 10 , 11D View FIGURE 11 ). Lateral margin of eye together with temple rounded............ 4

4. Eyes small ( Fig. 11C View FIGURE 11 ), margins of epistomal prong not emarginated; prong widely rounded with not strongly projected apex (11B). Pronotum slightly convex, more transverse (1.23–1.25 times as wide as long)........................ M. heydeni

- Eyes large ( Figs 7E View FIGURE 7 , 9E View FIGURE 9 ), margins of epistomal prong widely emarginated; prong projected ( Figs 8C View FIGURE 8 , 9D View FIGURE 9 ). Pronotum strongly convex, less transverse (1.1–1.17)........................................................................ 5

5. Head basally with coarser and denser elongate puncturation ( Fig. 7E View FIGURE 7 ). Pronotum with slightly elongate puncturation on lateral sides ( Fig. 7A, E View FIGURE 7 ). Prothoracic hypomera with sparse and fine, but distinct puncturation at least in basal half ( Fig. 7F View FIGURE 7 ). Intercoxal process of mesoventrite angularly rounded (lateral view) ( Figs 7B View FIGURE 7 , 8A View FIGURE 8 ).............................. M. ferghanensis

- Head basally with the same sparse and fine puncturation as remaining parts of dorsum ( Fig. 9E View FIGURE 9 ). Pronotum entirely with simple round puncturation ( Fig. 9E View FIGURE 9 ). Prothoracic hypomera not punctured ( Fig. 10A View FIGURE 10 ). Intercoxal process of mesoventrite, strongly but not angularly rounded (lateral view) ( Fig. 10A View FIGURE 10 )................................................. M. globulicollis

6. Antennae long, with two (female) ( Fig. 1B View FIGURE 1 ) or three (male) ( Fig. 1A, C View FIGURE 1 ) apical antennomeres exceeding beyond base of pronotum. Prosternal process sharply bends in middle between horizontal and vertical portions ( Fig. 1F, G View FIGURE 1 ).................................................................................................. M. abdullohi sp. nov.

- Antennae shorter, reaching or not base of pronotum ( Figs 3A View FIGURE 3 , 4A View FIGURE 4 , 6B View FIGURE 6 , 13A View FIGURE 13 , 17A View FIGURE 17 , 18H View FIGURE 18 ). Prosternal process declivious rounded ( Figs 3D View FIGURE 3 , 4D View FIGURE 4 , 13G View FIGURE 13 ).................................................................................... 7

7. Prothoracic hypomera smooth, without visible puncturation ( Figs 17E View FIGURE 17 , 18E View FIGURE 18 )...................................... 8

- Prothoracic hypomera moderately or coarsely punctured ( Figs 3D View FIGURE 3 , 4D View FIGURE 4 , 13G View FIGURE 13 )...................................... 9

8. Epistomal prong sharply separated from epistome, with subparallel sides ( Fig. 18B View FIGURE 18 ). 1 st metatarsomere shorter than 4 th one ( Fig. 18D View FIGURE 18 )................................................................................. M. transversicollis

- Epistome with simple triangular non-separated prong ( Fig. 17B View FIGURE 17 ). Metatarsomeres 1 and 4 subequal in length (only specimens from Uzbekistan and NE Turkmenistan) ( Fig. 17D View FIGURE 17 )................................................ M. shasenema

9. Prothoracic hypomera with very coarse and dense sharp puncturation ( Fig. 13G View FIGURE 13 )............................. M. minax

- Prothoracic hypomera with disappearing, fine or moderately coarse and sparse puncturation ( Figs 3D View FIGURE 3 , 4D View FIGURE 4 )............. 10

10. Eyes small and slightly convex ( Fig. 6C View FIGURE 6 ). Epistomal prong almost not expressed, epistome widely rounded in middle ( Fig. 6D View FIGURE 6 ). Elytra widely longitudinally depressed in middle ( Fig. 6A, B View FIGURE 6 )........................................... M. deserta

- Eyes large and moderately convex ( Figs 3C View FIGURE 3 , 4C View FIGURE 4 ). Epistome with triangle prong in middle ( Figs 3B View FIGURE 3 , 4B View FIGURE 4 ). Elytra not depressed ( Figs 3A View FIGURE 3 , 4A View FIGURE 4 )....................................................................................... 11

11. Pronotum slightly convex ( Fig. 3A, C View FIGURE 3 ). Elytra not opaque laterally and apically, entirely with distinct moderately dense puncturation ( Fig. 3A View FIGURE 3 )....................................................................... M. campestris

- Pronotum strongly convex ( Fig. 4A, C View FIGURE 4 ). Elytra opaque laterally and apically, with disappearing puncturation on opaque areas ( Fig. 4A View FIGURE 4 ).................................................................................... M. convexa