1 |
Elytra with well-marked punctures (Fig.
15E, F
); posterior elevation of mesoventrite flat
|
N. punctatus
|
- |
Elytra with shallowly marked punctures (e.g., Fig.
15A, B
); posterior elevation of mesoventrite weakly to sharply carinate
|
2
|
2 |
Coloration of the body rather uniformly brown (Fig.
15A-D
)
|
N. castaneus
|
- |
Coloration of pronotum yellow (see Fig.
16
)
|
3
|
3 |
Coloration of the head and clypeus uniformly dark brown (Fig.
16D
); posterior elevation of mesoventrite weakly carinate; ventral surface densely pubescent (Fig.
16C
)
|
N. tricolor
|
- |
Coloration of the head brown, with orange clypeus (Fig.
16H
); posterior elevation of mesoventrite sharply carinate; ventral surface scantily pubescent (Fig.
16G
)
|
N. hesperus
|