Hypoxys excavatus, Nunes & Mendonça & Fernandes, 2022

Nunes, Benedito Mendes, Mendonça, Maria Thayane Da Silva & Fernandes, Jose Antonio Marin, 2022, Seventeen new Species of Hypoxys Amyot & Serville, 1843 (Heteroptera: Pentatomidae: Edessinae), Zootaxa 5159 (2), pp. 187-220 : 199

publication ID

https://doi.org/ 10.11646/zootaxa.5159.2.2

publication LSID

lsid:zoobank.org:pub:0D339FF5-003D-4ACB-90C7-40495C21C68B

DOI

https://doi.org/10.5281/zenodo.6778938

persistent identifier

https://treatment.plazi.org/id/8E088B9B-03BE-4DDA-8486-A6356AE7D83B

taxon LSID

lsid:zoobank.org:act:8E088B9B-03BE-4DDA-8486-A6356AE7D83B

treatment provided by

Plazi

scientific name

Hypoxys excavatus
status

sp. nov.

Hypoxys excavatus sp. n.

( Figures 7A–E View FIGURE 7 , 19A–B View FIGURE 19 , 21B View FIGURE 21 )

http://zoobank.org/ urn:lsid:zoobank.org:act:8E088B9B-03BE-4DDA-8486-A6356AE7D83B

Material examined (n=3). Holotype ♂: BRAZIL. Mato Grosso. Chapada dos Guimarães, III.79, O. Roppa & A. Domingos leg. ( MNRJ) . Paratypes: BRAZIL. Rondônia: ♀ Ouro Preto do Oeste, sítio Deus é Amor , 20.III.1985, M.F. Torres leg. ( MPEG); same data : ♀ 26.III.1985 ( MPEG) .

Measurements. Total length: 14.5–16.6; head length: 1.4–1.6; head width: 3.0–3.1; pronotal length: 2.5–3.1; pronotal width: 8.9–9.5; scutellum length: 6.7–7.5; scutellum width: 5.0–5.5; abdominal width: 8.0–8.3; length of antennal segments. I: 0.8–1.0; II: 1.4–1.6; III: 1.0–1.3; IV: 3.5–4.1; V: 4.2–4.5.

Diagnosis. Anterolateral margin of pronotum without black stripe. Anterolateral margin not punctured dorsally. Cicatrices of pronotum with light brown punctures delimiting anterior sulci ( Fig. 19A View FIGURE 19 ). Scutellum with anterior margin yellow ( Fig. 19A View FIGURE 19 ). Body ventrally with narrow brown stripes ( Fig. 19B View FIGURE 19 ). Male genitalia ( Fig. 7A–D View FIGURE 7 ). Pygophore remarkably excavated laterally ( Fig. 7C–D View FIGURE 7 ), leaving the parameres visible in lateral view. Dorsal rim rugose and projected posteriorly, surpassing level of posterolateral angles ( Fig. 7A View FIGURE 7 ). Superior process of genital cup triangular, short, tapering to the base, and close to dorsal rim; visible in dorsal view ( Fig. 7A–C View FIGURE 7 ). Paramere spatulate; anterior lobe developed and rounded; posterior lobe well-developed and subtriangular; outer margin black; stalk with inner medial carina low, evanescent and curved toward anterior lobe ( Fig. 7B–C View FIGURE 7 ). Proctiger with dorsolateral tufts of setae clearly separated by medial bridge; posterior face pentagonal with both lateral margins swollen and somewhat ventrally projected ( Fig. 7B–C View FIGURE 7 ). Ventral rim remarkably projected caudally; medial excavation shallow; expansions slightly tumid, acuminated, and narrow; apices densely setose, surpassing level of posterolateral angles in ventral view ( Fig. 7D View FIGURE 7 ). Female genitalia ( Fig. 7E View FIGURE 7 ). Plates with long and sparse setae. Valvifers 8 subtrapezoidal, posterior margin sinuous; inner angles reaching basal third of valvifers 9, not touching each other; inner margins forming a long and narrow drop-like excavation. Valvulae 9 exposed.

Comments. The H. excavatus like H. omegoides , ( Fig. 10C–D View FIGURE 10 ) and H. boerneri ( Nunes et al. 2020, Fig. 2C View FIGURE 2 ) has the lateroventral side of the pygophore remarkably excavated, leaving paramere completely exposed laterally ( Fig. 7C–D View FIGURE 7 ). This condition also gives the impression that ventral rim of the pygophore is strikingly projected caudally, completely different from all other species of the genus. The species H. excavatus and H. omegoides show the lateral margins of the posterior face of the proctiger ventrally projected ( Figs. 7B View FIGURE 7 , 10B View FIGURE 10 ) (just surpassing the margin in H. excavatus and strongly developed in H. omegoides ). Females from H. excavatus and H. boerneri are very similar ( Fig. 7E View FIGURE 7 ; Nunes et al. 2020, Fig. 2D View FIGURE 2 ). The main difference between these species is the median excavation of valvifers 8 in H. excavatus ( Fig. 7E View FIGURE 7 ) that is narrower with apices of inner angles closer to each other than in H. boerneri .

Etymology. The name refers to the strongly excavated lateral surface of the pygophore.

Distribution ( Fig. 21B View FIGURE 21 ). BRAZIL: Rondônia, Mato Grosso.

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Pentatomidae

Genus

Hypoxys

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