Table 2.

Morphological features of E. integriceps, E. maura, E. dilaticollis, and E. testudinaria.

Species	Morphological features
	Pronotum lateral margins/lateral angles	Presence of medial keel on scutellum/ tubercles near scutellum anterior angles	Apices of jugal plates	Female median genital plates	Number of sclerotized hooks of aedeagus	Body length, mm
E. integriceps (Fig. 5A)	Slightly convex/rounded, not salient laterally of the base of hemelytra	Yes/yes	In the plane of clypeus apex or insignificantly above it	Almost reaching lateral margins of abdominal segment VII	4	9.8–13.0
E. maura (Fig. 5B)	Straight or slightly concave/rounded, not or barely noticeable salient laterally of the base of hemelytra	No/no	In the plane of clypeus apex or insignificantly above it	Reaching or almost reaching lateral margins of abdominal segment VII	2	8.0–11.5
E. testudinaria (Fig. 5C)	Straight or slightly concave/acuminate, slightly salient laterally of the base of hemelytra	No or barely expressed/no	Distinctly or insignificantly above the plane of clypeus apex	Distinctly not reaching or almost reaching lateral margins of abdominal segment VII	4	8.0–10.5
E. dilaticollis (Fig. 5D)	Slightly convex, rounded/ barely noticeable salient	Yes/no	In the plane of clypeus apex	Not reaching lateral margins of abdominal segment VII	6	8.0–10.5