Hypoxys trabeculus ( Breddin, 1907 ), 2020

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 : 418-419

Hypoxys trabeculus ( Breddin, 1907) comb. nov.

( Figs. 8 A–E; 19 C–D; 21)

Edessa trabecula Breddin, 1907: 331; Kirkaldy, 1909: 368 (catalog)

Lectotype male. Suriname (SDEI). Designated by Gaedike (1971:101). Examined. Gaedike also indicated paralectotypes, mention quantity but did not mentioned gender of them.

Material examined. SURINAME. ♀ Mapana area, Camp. 8, LBB, 29–May–1963, P. H. V. Doesburg Jr. ( MNHN) ; ♂ 19, P. H. v. Doesburg Jr., Edessa trabecula Breddin, 1907 Comp. w. TYPE Fernandes, JAM 1999 ( RMNH) ; FRENCH GUIANA. Saint Laurent du Maroni: ♀ Mana River , May–1917, Compared with TYPE Edessa trabecula Breddin, Sailer & Lutz 1957 ( USNM) ; BRAZIL. Roraima: ♂ Caracaraí, Vila Calcubi , trilha do INPA, 07–IX–2011, 01º01’45,2’’S 62º05’12,2’’W, Biffi, G. & Prado, L. R. col. ( MZUSP) ; Amazonas: ♂ Manaus , km 60 INPA, 17–19–Mars–1986, G. Couturier Coll., Pastagem (prairie) ( INPA) ; ♀ INPA—Est. Aleixo , 20–IX–1977, Altamiro coll. ( INPA) ; Pará: ♂ Óbidos , VIII–78, A. C. Domingos, Edessa trabecula Breddin, 1907 Comp. w. TYPE Fernandes, JAM 1999 ( RMNH) ; ♂ ♀ Óbidos, bx./ Amazonas, Museu Dirings , Fev–1961 ( MZUSP) ; ♂ Juruti , 6–VI–2007, Sítio Barroso, S 02º 27’ 51.4’’ W 56º 00’ 08.6”, Manual noturna, Lo-Man-Hung, N. F., Juru 006213 ( UFRG) ; ♀ Santarém , VII–26–1930, C. H. Townsend, Compared with TYPE Edessa trabecula Breddin, Sailer & Lutz 1957 ( USNM) ; ♀ Jacareacanga , X–1959, M. Alvarenga leg, Edessa trabecula Breddin, 1907 Comp. w. TYPE Fernandes, JAM 1999 ( RMNH) ; ♂ Seca [Pará, Serra do Cachimbo] 0326 ( UFRG) ; Rondônia: ♀ V. Rondonia, 378 Km S de P. Velho, 25–I–9–II–1961, Pereira e A. Machado ( MZUSP) ; Mato Grosso: ♂ Sinop , 09–V–2011, Col. Barreto, M. R. ( UFMT) ; same data : ♀ 10–V–2011 ( UFMT) ; ♀ Cotriguaçu , 08–XII–2009, Col. Barreto, M. R. ( UFMT) ; BOLIVIA. Beni: ♀ Gebiet, Guayaramerin 150 m, 19–5–1954, leg. W. Forster ( ZSM) .

Measurements. total length: 16.6–19.6; head length: 2.0–2.4; head width: 3.3–3.7; pronotal width: 10.1–11.8; abdominal width: 9.1–10.4; length of antennal segments. I: 0.9–1.1; II: 1.8–2.4; III: 1.2–1.8; IV: 3.4–5.7; V: 5.2–5.8; interocular distance: 1.3–1.7; scutellum length: 7.4–8.6; scutellum width: 5.6–6.6; pronotal length: 3.3–3.9.

Diagnosis. Anterolateral margin of pronotum with complete solid black stripe. Cicatrices with brown punctures delimiting anterior sulci ( Fig. 19C ). Anterolateral margin with some brown punctures. Male ( Fig. 8 A–C). Pygophore with dorsal rim sinuous, shallowly excavated ( Fig. 8A ). Superior process of genital cup laminar with outer corner protruding; adjacent to dorsal rim ( Fig 8B ). Paramere elongated, club-like, strongly bent laterally; inner margin with conspicuous carina ending at rounded apex of bent part ( Fig. 8B ); anterior face of bent part strongly concave. Proctiger with large tufts of setae separated by small carina; posterior face pentagonal ( Fig. 8B ) and transversly concave, base of the setae on lateral margin projected (but not visible due the setae). Ventral rim central excavation widely and shallowly excavated; expansions well-developed. tumid and rounded, surpassing level of posterolateral angles in ventral view, setose ( Fig. 8C ). Female ( Fig. 8D ). Gonocoxites 8 slightly convex, posterior margin angulate; inner angle covering almost half of gonocoxites 9; sutural border slightly divergent in distal half. Gonapophyses 8 barely exposed.

Comments. Breddin (1907) said that E. trabecula is similar to E. quadridens mainly because of the ratio between eye width and pronotum length; however, this is a not reliable character. A variation among specimens was observed and the posterior margin of gonocoxites 8 can be less slanting than shown ( Fig. 8D ). Females of H. trabeculus have a characteristic gonocoxite 8 with its angulate posterior margin and sutural border divergent on distal half ( Fig. 8D ). The other female with subrectangular gonocoxites 8 is H. claricolor, but the inner angle of gonocoxite 8 in H. claricolor is rounded and sutural border excavated in “U” ( Fig. 3D ), also laterotergites 9 have distal angle rounded (acute in H. trabeculus ). Males of H. trabeculus ( Fig. 8B ) have paramere club-like and projected laterally like in H. claricolor ( Fig. 3B ). But, in H. trabeculus inner carina is higher than in H. claricolor and reaches the apex of the paramere ( Fig. 8B ); superior process of genital cup is laminar and straight; expansions of ventral rim are tumid, and posterior face of the proctiger is wider than long ( Fig. 8B ). In H. claricolor the inner carina is low and ends up in the middle of the paramere; superior process is narrow, curved with a median projection; expansions of ventral rim are flat, and posterior face of the proctiger is longer than wide ( Fig. 3B ).

Distribution ( Fig. 21 ). SURINAME; FRENCH GUIANA: Saint Laurent du Maroni; BRAZIL: Roraima, Amazonas, Pará, Rondônia, Mato Grosso; BOLIVIA: Beni.

Figures

FIGURE 3. H. claricolor. A–C Male, pygophore; A—dorsal view; B—posterior view; C—ventral view. D—Female, genital plates. E—metasternal process; F—Habitus, Lectotype male; G—specimen data (Scale = 1mm).

FIGURE 8. H. trabeculus. A–C Male, pygophore; A—dorsal view; B—posterior view; C—ventral view. D—Female, genital plates. E—metasternal process (Scale = 1mm).

FIGURE 19. Dorsal and ventral view. H. offuscatus A–B; H. trabeculus C–D; H. triangularis E–F; H. capito G–H; H. subrastratus I–J; H. oxyacanthus K–L (Scale = 5mm).

FIGURE 21. Distributional map of the species of H. quadridens group.