Janeirona stenosa Sampaio & Campos, 2024

Sampaio, Vinícius Gomes, Oliveira, Giulia Valadão De & Campos, Luiz Alexandre, 2024, Revision of Janeirona Distant, 1911 (Hemiptera: Pentatomidae: Ochlerini) with the description of four new species from Brazil, Zootaxa 5497 (4), pp. 451-495 : 489-491

publication ID

https://doi.org/ 10.11646/zootaxa.5497.4.1

publication LSID

lsid:zoobank.org:pub:173E2990-D5C9-4AA5-8185-988DC64F6DCD

DOI

https://doi.org/10.5281/zenodo.13621291

persistent identifier

https://treatment.plazi.org/id/8C418BF1-67E5-414A-83BC-C71816F869F8

taxon LSID

lsid:zoobank.org:act:8C418BF1-67E5-414A-83BC-C71816F869F8

treatment provided by

Plazi

scientific name

Janeirona stenosa Sampaio & Campos
status

sp. nov.

Janeirona stenosa Sampaio & Campos sp. nov.

( Figs. 39–41 View FIGURE 39 View FIGURE 40 View FIGURE 41 , 43 View FIGURE 43 )

Etymology. The epithet refers to the narrow body. Greek: stenos, narrow.

Holotype ( Figs. 39 View FIGURE 39 , 40 View FIGURE 40 , A). Female, here designated. BRAZIL, Rio de Janeiro: (Angra dos Reis, Japuíba, - 22.9744, -44.3049). Labels: Angra Japuhyba / XII 940 [1940] / Haroldo Trav. Deposited in: DZUP. GoogleMaps

Paratypes. BRAZIL, Rio de Janeiro: (Itatiaia, -22.4911, -44.7197), female, 24-XI-1946, J. F. Zikan ( CEIOC); GoogleMaps ( Teresópolis , -22.4171, -43.0286), female, 23-X-1957, Machado-Dalcy-Barros ( DZUP); GoogleMaps ( Serra dos órgãos, -22.4959, -43.1699), 4 females, 1940, Parko ( DZUP); GoogleMaps (Angra dos Reis, Japuíba , -22.9744, -44.3049), female, 23-III-1940, Lane & Lopes ( DZUP), GoogleMaps 2 females, XII-1940, Haroldo Trav. ( UFRG); female, II-1932, L.T. ( UFRG); São Paulo: (Salesópolis, Estação Biológica de Boraceia , -23.5324, -45.8823), female, 15- VIII-1963, Rabello & Medeiros ( UFRG); GoogleMaps Santa Catarina: ( Corupá , -26.4248, -49.2868), female, I-1954, A. Maller ( MNRJ) GoogleMaps .

Diagnosis. Body elongated, length ranging from 13.2 mm to 14.6 mm. Antennomeres I slightly surpassing the mandibular plates; labium attaining urosternite III. Pronotum twice wider than long; lateral half of the corial posterior margin subrectilinear; metasternum with a narrow carina sided by two grooves. Valvifers VIII as wide as long; laterotergites VIII as wide as long.

Description. Body dark brown ( Fig. 39 View FIGURE 39 ). Head wider than long; maximum head width across the mandibular plates less than half the head width across the eyes; posterior margins of the eyes forming an angle of less than 45º with the longitudinal body axis; each mandibular plate wider than clypeus, with the outer margin convex and the inner margin straight anterior to clypeus, apices acute; antennomeres I slightly surpassing the mandibular plates; proportion of antennomeres: I>II<III ≅ IV<V ( Fig. 40 View FIGURE 40 , A); labium attaining urosternite III ( Fig. 39 View FIGURE 39 , B), without intercalary segment ( Fig. 40 View FIGURE 40 , B); proportion of labiomeres: I<II>III>IV.

Thorax. Pronotum twice wider than long; anterior margin shallowly concave; lateral margins weakly sinuous ( Fig. 40 View FIGURE 40 , A). Lateral half of the corial posterior margin subrectilinear, apical angle attaining half of the connexival segment VI ( Fig. 39 View FIGURE 39 , A). Metasternum with a narrow carina sided by two grooves.

Abdomen. Medial portion of urosternites concolor and unpunctured ( Fig. 40 View FIGURE 40 , B); inner trichobothria in line with spiracles, outer trichobothria lateral to spiracles in urosternites V and VI.

Male. Unknown.

Female. Measurements (n=13): Total length (n=12) 14.15 ± 0.47 (14.60–13.20); width of abdomen (n=12) 6.00 ± 0.14(6.10–5.70);head length1.90±0.10(2.10–1.80);width2.50±0.05(2.50–2.40);pronotum length2.60±0.11(2.70– 2.40); width5.50 ± 0.19(5.80–5.20); scutellum length5.00 ± 0.15(5.30–4.70); width3.50 ± 0.12(3.70–3.30);length of antennomeres:I (n=11)1.00± 0.04(1.00–0.90),II(n=11)0.80± 0.07(0.90–0.70), III(n=11)1.60±0.06(1.70–1.50),IV (n=9) 1.60± 0.12 (1.90–1.50),V(n=3)2.00± 0.11 (2.20–2.00);length of labiomeres:I 1.00 ±0.05 (1.00–0.90), Int.0.20 ± 0.05 (0.20–0.10), II 1.70 ± 0.07 (1.90–1.60), III (n=12) 1.50 ± 0.11 (1.70–1.20), IV (n=12) 1.10 ± 0.09 (1.20–0.90).

Genitalia. ( Fig. 41 View FIGURE 41 ). Valvifers VIII as wide as long, lateral angles broadly convex and posteriorly projected relative to the sutural angles, posterior margins convex ( Fig. 41 View FIGURE 41 , A, vfVIII); laterotergites VIII as wide as long, posterior margins slightly convex ( Fig. 41 View FIGURE 41 , A, laVIII); laterotergites IX with lateral margins straight, mesial margins straight over segment X and slightly concave over valvifers IX, and rounded apices not surpassing the mediotergite VIII ( Fig. 41 View FIGURE 41 , A, laIX). Ring sclerites subtriangular in ventral view, as wide as the thickening of the vaginal intima, this rectangular ( Fig. 41 View FIGURE 41 , B); proximal portion of ductus receptaculi coiled and more than twice longer than the vesicular area ( Fig. 41 View FIGURE 41 , B, drp); median duct of vesicular area uniformly wide; distal portion of ductus receptaculi uniformly widened, not dilated, shorter than pars intermedialis and capsula seminalis taken together ( Fig. 41 View FIGURE 41 , B, drd); pars intermedialis less than half the length of capsula seminalis, the latter dilated apically with three digitiform projections ( Fig. 41 View FIGURE 41 , B, pi, cs).

Comments. Similar to Janeirona vianai and Janeirona flavipes Sampaio & Campos sp. nov.. Differs from J. vianai by the elongated body, antennomeres I slightly surpassing the mandibular plates, inner margin of mandibular plates straight anterior to clypeus, and labium attaining urosternite III. Differs from J. flavipes Sampaio & Campos sp. nov. by the maximum head width across the mandibular plates less than half the head width across the eyes, antennomeres I slightly surpassing the mandibular plates, inner margin of mandibular plates straight anterior to clypeus, and legs brown, not contrasting with the abdominal venter. Differs from all species in the genus by the metasternum with a narrow carina sided by two grooves.

Distribution: Brazil (Rio de Janeiro, São Paulo, and Santa Catarina).

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

UFRG

Instituto de Biologia

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Pentatomidae

Genus

Janeirona

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