Hypoxys triangularis Nunes & Campos & Mendonca & Cunha & Fernandes 2020

Group H. triangularis

(Figs. 9–11 A–E; 19 E–J; 22)

Diagnosis. This group compared with H. quadriden s group is characterized by absence of features. Species belonging to H. triangularis group can be identified by the general and uniform green color (Fig. 19H,J) (except H. triangularis), except for a median large yellow spot on abdominal venter (Fig. 19F); and typically, without any transversal dark stripe on ventral surface (Fig. 19F,H,J). This group also doesn’t have the anterolateral margin of pronotum black (Fig. 19E,G,I). Doesn’t have a transversal dark stripe on pronotum, except H. triangularis, that is a striking characteristic of the rest of the species groups of Hypoxys. Connexivum without black spots (Fig. 19E,G,I). Males have the head of paramere usually with a single lobe elongated and anteriorly directed (Fig. 9B). Females share the outer lateral angle of gonocoxites 8 varying from a small tooth to a large acute projection (Figs. 9D, 10D, 11D).

Head. Mandibular plates with apices concolorous; lateral margin without spot. Antennae yellow with setae more densely distributed in antennomeres III, IV and V; third antennomere longer than second (Fig. 19E,G,I).

Thorax. Apex of humeral angle with margin brown. Scutellum with punctures black; anterior margin without a yellow stripe (Fig. 19G). Propleura with punctures concolorous concentrated on posterior half. Evaporatorium concolorous to slightly whitish. Metasternal process (Fig. 9E) with anterior bifurcation receiving fourth and most of third rostral segment.

Abdomen. Connexivum with two barely excavated areas (Fig. 19E,G,I). One trichobothrium positioned in line with spiracles and the other located laterad of this line.

Male. Pygophore with distal part of dorsal surface coarse and reddish brown (Figs. 9A, 10A, 11A). Superior process of genital cup black, emarginated, and placed near base of proctiger. Base of paramere with a rounded protuberance (Fig. 9B).

Female (Figs. 9D, 10, D, 11D). Gonocoxites 8 convex. Gonocoxites 9 with distal margin straight to slightly concave. Laterotergites 9 with outer lateral margin sinuous, well projected beyond sclerite uniting laterotergites 8; almost reaching level of laterotergites 8.

This group of species includes: H. triangularis, H. capito, H. subrastratus, and several new species.