Key to the species of the Ellimenistes humeralis group

1. Rostrum narrowest at base (Fig. 4). Elytra with laterally prominent projections behind the base (Fig. 3). Funicle segments 1 and 2 equally long. Eyes big, conspicuously prominent from outline of head (Fig. 4). Scrobes laterally furrow-shaped (Fig. 7). Pronotum 1.6–1.8× wider than long, widest at base, base V-shaped (Fig. 3). Raised elytral setae at apical declivity longer than at basal half. Ramus of spermatheca shorter than wide (Figs 16, 18).............................................. 2

- Rostrum widest at base (Fig. 5). Elytra without laterally prominent projections behind the base (Fig. 2). Funicle segment 1 twice longer than segment 2. Eyes small, barely prominent from outline of head (Fig. 5). Scrobes laterally subtriangular (Fig. 8). Pronotum 1.3–1.4× wider than long, widest at basal third, base straight (Fig. 2). Raised elytral setae equally long at basal and apical part. Ramus of spermatheca twice longer than wide (Figs 17, 19)....................................... 3

2. Setae at posterior elytral declivity appressed, as short as one third of width of an elytral interval (Fig. 1). Elytra with rounded sides (Fig. 1). Appressed elytral scales isolated. Spermatheca with nodulus about 6× longer than wide, U-shaped curved (Fig. 16)................................................................................ E. humeralis Marshall

- Setae at posterior declivity erect, as long as width of one interval (Fig. 3). Elytra with almost straight sides (Fig. 3). Appressed elytral scales slightly imbricate. Spermatheca with nodulus twice longer than wide, perpendicularly curved (Fig. 18)............................................................................................ E. marshalli sp. nov.

3. Rostrum shorter, 1.41–1.44× wider than long (Fig. 5), in profile distance between scrobe and eye equally long as scrobe (Fig. 8). Funicle segment 1 1.8–2.0× longer than segment 2; segments 3–7 isodiametric. Penis widest at base, with sides before apex slightly convex (Fig. 10). Tegmen with parameres distinctly shorter than diameter of ring, separated (Fig. 13). Plate of female sternite VIII widely subtriangular, apically constricted (Fig. 21). Spermatheca with ramus pressed to corpus (Fig. 17).............................................................................................. E. janaki sp. nov.

- Rostrum longer, 1.23–1.28× wider than long (Fig. 6), in profile distance between scrobe and eye longer than scrobe (Fig. 9). Funicle segment 1 1.3–1.4× longer than segment 2; segments 3–7 1.1× longer than wide. Penis widest at apical quarter with sides before apex slightly concave (Fig. 12). Tegment with parameres almost as long as diameter of ring, connected at their basal half (Fig. 15). Plate of female sternite VIII narrowly subtriangular, without apical constriction (Fig. 23). Spermatheca with ramus deviated from corpus (Fig. 19).................................................... E. raucus sp. nov.