Two new species of Macroplea Samouelle (Coleoptera: Chrysomelidae: Donaciinae) from China, with a key to all known species
Author
Lou, Qiaozhe
Author
Yu, Peiyu
Author
Liang, Hongbin
text
Zootaxa
2011
3003
1
21
journal article
10.5281/zenodo.278456
a8fc813d-35bd-45b7-a0ca-42ef0c0cd9a6
1175-5326
278456
Key to species of
Macroplea
1 Punctures along elytral striae coarse, not arranged in paired rows (
Figs 24, 26
,
31
); antenna relatively short, not extending beyond middle of elytron (
Figs 24–27
); metatarsus with apical tarsomere as long as basal three combined (
Fig. 39
); hypomeron with an oblong supracoxal pubescent patch (
Fig. 32
); BL = 5.4–8.5 mm.
China
(Sichuan)..............
M. ranina
sp. nov.
- Punctures along elytral striae fine, arranged more or less in paired rows (
Figs 1, 3
,
50–53
); antenna relatively long, extending beyond middle of elytron (
Figs 1–3
,
50, 52, 53
); metatarsus with apical tarsomere more than 1.2 times as long as basal three combined (
Figs 10
,
68, 70, 71
); hypomeron with at most a small triangular supracoxal pubescent patch (
Figs 14
,
54
)....... 2
2 Pronotum and elytron pubescent, with conspicuous dense long hairs (
Figs 57
,
61
); elytron without spine at outer apical angle (
Fig. 65
); pronotum without black spots or stripes on disc (
Fig. 57
); BL: 5.0–8.6 mm.
China
(Heilongjiang, Ningxia, Gansu, Xinjiang (Aksu));
Finland
........................................................
M. pubipennis
(
Reuter, 1875
)
- Pronotum and elytron glabrous or with very sparse short hairs (
Figs 5, 8
,
56, 58, 59
,
60, 62, 63
); elytron with spine at outer apical angle (
Figs 12
,
64, 66, 67
); pronotum with black spots or stripes on disc (
Figs 5
,
56, 58, 59
)........................ 3
3 Pronotum without coarse black punctures near apical and basal margin, medial longitudinal groove shallow, not black (
Figs 58, 59
); hypomeron without supracoxal pubescent patch; second metatarsomere longer than or equal to first (
Figs 70, 71
)...... 4
- Pronotum with coarse black punctures near apical and basal margin, medial longitudinal groove deep, black (
Figs 5
,
56
); hypomeron with a small triangular supracoxal pubescent patch (
Figs 14
,
54
); first metatarsomere much longer than second (
Figs 10
,
68
)......................................................................................... 5
4 Median lobe of aedeagus relatively robust, apex with a denticle (
Figs 77, 78
); elytral outer apical spine generally long, with base narrow (
Fig. 66
); seond metatarsomere longer than first (
Fig. 70
); body relatively large, BL: 5.9–7.7 mm.
China
(Xinjiang (Altay)); Siberia; Middle Asia; Europe;
Algeria
.....................................
M. appendiculata
(
Panzer, 1794
)
- Median lobe of aedeagus relatively slender, apex gradually narrowed (
Figs 79, 80
); elytral outer apical spine generally short, with base broad (
Fig. 67
); second metatarsomere equal to or slightly longer than first (
Fig. 71
); body relatively small, BL: 5.3–6.6 mm.
China
(Heilongjiang,
Tianjin
);
Japan
; Siberia;
Mongolia
; Middle Asia; Europe....
M. mutica
(
Fabricius, 1792
)
5 Pronotum and elytron smooth, without wrinkles (
Figs 56
,
60
); lateral outline of elytra nearly parallel (
Fig. 52
); vertical tubercles distinctly convex (
Figs 54, 55
); black stripes on pronotal disc short (
Fig. 56
); body relatively small, BL: 3.5–4.5 mm.
China
(Heilongjiang, Hebei, Jiangsu, Hubei);
Japan
; East Siberia............................
M. japana
(
Jacoby, 1885
)
- Pronotum and elytron with wrinkles (
Figs 5, 8
); lateral outline of elytra not parallel, widest near middle (
Figs 1, 3
); vertical tubercles less convex (
Figs 6, 7
); black stripes on pronotal disc long (
Fig. 5
); body relatively large, BL: 5.1–6.4 mm.
China
(Guizhou)..........................................................................
M. huaxiensis
sp. nov.