Numbers
Nearctica only lists one species in this genus,
Southern Green Stink Bug,
Nezara viridulus, elsewhere known as
N. viridula Remarks
Nezara vs. Acrosternum
additional distinguishing characters
In order to supply bugguide with safe adult pictures of Nezara viridula, lacking insofar, I have studied a lot of images of this species from Europe.
I found, that the rule that species may be discriminated not only by characters found in keys, also applies here. The very similar Acrosternum hilare and Nezara viridula may be discriminated as follows:
N.viridula: Scutellum with small BLACK spots in basal angles;
A.hilare: Scutellum with small PALE spots in basal angles (or without spots);
(this character discriminates Nezara against all other green stink bugs, insofar I can see!)
N.viridula: Connexivia (side parts of abdomen) bright all over;
A.hilare: Connexivia with small dark dots at apical margins;
(does not discriminate Acrosternum vs. Chlorochroa, it seems)
N.viridula: Sides of pronotum slightly concave in anteriour half;
A.hilare: Sides of pronotum straight to slightly CONVEX in anteriour half;
(to be compared at certain angle only)
N.viridula: Antennal segment 4 rarely deeply infuscated (usually tinged with red), but dark colouration usually taking more than apical half of the segment.
A.hilare: Antennal segment 4 usually strongly infuscated, dark colouration usually taking apical half of the segment only.
(weak character)
… Boris Büche, 5 May, 2007 - 5:36am
