Podisus amboroensis Brugnera, 2024

Brugnera, Ricardo, Sampaio, Vinícius, Campos, Luiz Alexandre & Grazia, Jocelia, 2024, Searching for the identity of Podisus Herrich-Schäffer, 1851 (Hemiptera: Pentatomidae): examination of type specimens leads to taxonomic updates and description of five new species, Insect Systematics & Evolution 56 (1), pp. 64-89 : 12-13

Podisus amboroensis Brugnera , sp. nov.

( Fig. 6 )

ZooBank: https://www.zoobank.org//8AF4DB50-D40B-4556-9785-5569B4389597

Type material. Holotype: ♂ Bolivia: Santa Cruz 6km N Achira, rd to Amboro (-18.1607, -63.8115), 17 & 20-XI-2003, Morris, Nearns, & Wappes, collrs. ( JEE) .

Etymology. The species is named according to its type locality, an area adjacent to the Amboró National Park in the Santa Cruz Department, Bolivia. Noun in apposition.

Differential diagnosis. Podisus emboroensis sp. nov. is similar to Podisus fuscescens (Dallas) sharing most of the external body features, such as the brown coloration and the anterolateral margins of pronotum not contrasting with the disc. The main differences are in the male genitalia: the head of the parameres with posterior margins concave, the anterior branch rounded and the posterior branch elongated in P.amboroensis , and subtriangular with the medial part of the posterior margin slightly elevated in P.fuscescens ; and the superior layer of the ventral rim convex and depressed medially in P.amboroensis , and concave in P.fuscescens (see Brugnera et al. 2020 for a description of P.fuscescens ).

Description. Coloration: Head, pronotum, scutellum, and coria are dark brown and densely punctured, with few pale areas between punctures, mainly on pronotum. Antennae and the labium are brown. Ventral surface of the body presents dark brown punctures, with more pale areas compared to the dorsal surface. Medial region of the abdomen is dark brown. Legs are light brown with darker spots, mainly on profemora and protibiae. Hemelytral membranes are translucent. Anterior and posterior regions on connexival segments are dark brown, middle is light brown. Head: Mandibular plates and clypeus subequal in length. Proportions of antennomeres: 1 <2> 3 <4, 5 missing. Apex of the labiomere 4 surpasses the posterior margin of mesocoxae. Proportions of labiomeres: 1 <2> 3 <4. Thorax: Anterolateral margins on pronotum are crenulated. Humeri extend beyond the lateral margin of coria, are acute and laterally projected, and with a posterior protuberance. Presence of distinct setae along all legs. Peritreme of ESES is ruga-shaped, reaching half of metapleural width. Evaporatorium surrounding peritreme, not reaching metapleural outer margin, extending to posterior angle of mesopleura. Apex of coria reaches urosternite VI, hemelytral membranes surpass posterior abdominal margin. Abdomen: Urosternite III has a median spine, which reaches metacoxae. Male genitalia: Pygophore cup-like. Posterior opening oval. Dorsal rim concave, with 1 + 1 projections. Inferior layer on ventral rim concave, superior layer sinuous and depressed medially. Head of parameres with posterior margins concave, anterior branch rounded and posterior branch elongated, finger-like. Pseudoclaspers with smooth ornamentations.

Female: unknown.

Distribution. Bolivia (Santa Cruz).

Measurements. Total length: 8.0; head length: 1.4; head width: 2.4; pronotum length: 2.1; pronotum width (terete specimen): 5.0; scutellum length: 3.2; scutellum width: 2.8; abdominal length: 3.9; abdominal width: 4.4; length of antennomeres: I 0.3; II 1.3; III 0,9; IV 1,4; V missing; length of labiomeres: I 1.1; II 1.3; III 0.8; IV 0.9.

Figures

Fig. 6. Podisus amboroensis, sp. nov. holotype. (a–d) Habitus in dorsal, ventral, lateral, and dorso-anterior view; (e) thoracic external scent efferent system (ESES); (f–h) pygophore in dorsal, posterior, and ventral view. Abbreviations: (dr) dorsal rim; (ilvr) inferior layer of ventral rim; (pa) paramere; (pc) pseudoclasper; (slvr) superior layer of ventral rim. Scales: (a–b) 2 mm; (c–d) 1 mm; (e) 0.5 mm; (f–h) 0.2 mm.