Hypoxys leptacanthus (Breddin, 1904),

Nunes, Benedito Mendes, Campos, Lourival Dias, Mendonca, Maria Thayane Da Silva, Cunha, Eduardo Victor De Paiva & Fernandes, Jose Antonio Marin, 2020, Revision of Hypoxys Amyot & Serville, 1843 stat. rest. (Heteroptera Pentatomidae), Zootaxa 4742 (3), pp. 401-441: 430-432

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Hypoxys leptacanthus (Breddin, 1904)

comb. nov.

Hypoxys leptacanthus (Breddin, 1904)  comb. nov.

( Figs. 15View FIGURE 15 A–E; 20 E–F; 22)

Edessa leptacantha Breddin, 1904a: 139  ; Bergroth, 1908: 179; Kirkaldy, 1909: 159 (catalog)

Lectotype male. Peru, Amazonas ( SDEI). Designated by Gaedike (1971: 90). Examined. Gaedike mentioned more than one specimen but did not mentioned gender of lectotype. So, we are designating the male as  Lectotype

Material examined. PERU. Oxapampa: ♂ ♀ Edessa leptacantha Breddin, 1904  , Comp.w. TYPE Fernandes, JAM 1999 ( RMNH)  .

Measurements. total length: 15.4–17.1; head length: 1.7–2.0; head width: 2.8–3.1; pronotal width: 10.3–11.6; abdominal width: 7.8–9.1; length of antennal segments. I: 0.8–1.0; II: 1.6–1.9; III: 1.0–1.3; IV: 3.6–4.4; V: 4.2–4.7; interocular distance: 1.4–1.6; scutellum length: 7.0–8.0; scutellum width: 5.0–5.8; pronotal length: 3.1–3.6.

Diagnosis. Pronotum with small, elongate, lateral black spots including posterolateral angles. Anterolateral margin of pronotum without solid black stripe and not punctured. Posterolateral angles developed, as long as interocular distance. Anterior margin of scutellum yellow ( Fig. 20EView FIGURE 20). Dorsal surface of abdomen brown. Connexivum green without spots, except distal margin of segment VII, dorsally urotergite 8 with inner black stripes continuing in free part of laterotergites 8 ( Fig. 20EView FIGURE 20). Ventrally apex of pseudosutures without rounded dark spots ( Fig. 20FView FIGURE 20). Male ( Fig. 15View FIGURE 15 A–C). Pygophore with dorsal rim barely excavated; lateral strongly projected posteriorly, surpassing posterolateral angles and expansions of ventral rim ( Fig. 15A,BView FIGURE 15). Paramere with anterior lobe strongly developed, almost reaching base of proctiger; posterior lobe strongly developed and acuminated ( Fig. 15BView FIGURE 15). Proctiger with tufts of short setae widely separated, but not as much as in H. oxyacanthus  . Ventral rim with expansions well developed, barely tumid, and rounded ( Fig. 15CView FIGURE 15). Female ( Fig. 15DView FIGURE 15). Gonocoxites 8 inner angle covering base of gonocoxites 9. Laterotergites 9 wide, lightly surpassing sclerite uniting laterotergites 8.

Comments. Breddin (1904a) considered Edessa leptacantha  related to E. pachyacantha  (= H. tragelaphus  ). These species can be differentiated by humeral angles globose in E. pachyacantha  ( Fig. 20GView FIGURE 20). Other characters are subtle: expansions of ventral rim are more rounded, setae of lateral excavation of proctiger shorter, and paramere has anterior and posterior lobes more developed in H. leptacanthus  than in H. tragelaphus  . The female of H. leptacanthus  has four parallel narrow black stripes dorsally on seventh and eighth segments not found in H. tragelaphus  .

Distribution ( Fig. 23View FIGURE 23). PERU: Oxapampa.


National Museum of Natural History, Naturalis










Hemiptera (awaiting allocation)




Hypoxys leptacanthus (Breddin, 1904)

Nunes, Benedito Mendes, Campos, Lourival Dias, Mendonca, Maria Thayane Da Silva, Cunha, Eduardo Victor De Paiva & Fernandes, Jose Antonio Marin 2020

Edessa leptacantha

Kirkaldy, G. W. 1909: 159
Breddin, G. 1904: 139