Ischnopelta wigodzinskyi Rosso & Campos

Rosso, Pedro & Campos, Luiz Alexandre, 2021, Revision of Ischnopelta Stål, 1868 with the description of twenty new species (Hemiptera: Pentatomidae: Discocephalinae), Megataxa 6 (2), pp. 96-184 : 179-183

publication ID 10.11646/megataxa.6.2.3


persistent identifier

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scientific name

Ischnopelta wigodzinskyi Rosso & Campos

sp. nov.

Ischnopelta wigodzinskyi Rosso & Campos , sp. n. ( Figs. 5N View FIGURE 5 , 48–49 View FIGURE 48 View FIGURE 49 )

Etymology. Epithet probably proposed by Dr. Miriam Becker in honor of Petr Wolfgang Wygodzinsky (5.X.1916 – 27.I.1987), German entomologist which worked in Argentina, Brazil, and United States of America, especially with Reduviidae .

Type locality. BRAZIL, Goiás, Corumbá de Goiás [-15.9275, -48.8103] GoogleMaps .

Holotype. Male. BRAZIL, Goiás, Corumbá de Goiás, 4.II.1962, J. & B. Bechyné. Deposited at Museu Paraense Emilio Goeldi ( MPEG), Belém ( PA), Brazil.

Paratypes.3malesand 9females. BRAZIL, Tocantins, Palmas (Fazenda Céu, Serra do Lageado ), 1 male and 1 female, XI.1992, Exp. MCN / MZSP , [-10.1669, -48.3328], ( MCNZ); Dianópolis , 1 male and 1 female, 16–22. I GoogleMaps .1962, J GoogleMaps . Bechyné Col. , [-11.6278, -46.8208], ( MZSP); 1 female, 24. I GoogleMaps .1962, J. Bechyné col., [-11.6278, -46.8208], ( MPEG); Goiás, Minaçú ( Serra da Mesa ), 1 female, 19–30.XI.1996, L. Moura col. GoogleMaps , [-13.5365, -48.2212], ( UFRG), Corumbá de Goiás, 1 female, 31. I GoogleMaps .1962, J. & B GoogleMaps . Bechyné , [-15.9275, -48.8103], ( MPEG); 1 males and 4 females, 4. II GoogleMaps .1962, J. & B GoogleMaps . Bechyné , [-15.9275, -48.8103], ( MPEG) GoogleMaps .

Description. The overall somatic morphology is as described for I. scutellata , except for the following features. Head. Labrum inserted anteriorly to half the distance between the anterior margin of the eyes and the apex of mandibular plates. Antennae: segment I dark yellowish; segments II and III dorsally dark yellowish and ventrally brown, segment III dorsally punctured; segments IV and V brown; segments ratio: I>II<III<IV<V.

Thorax. Hemelytra: corium as long as scutellum; conspicuous spot at apex of the radial vein.

Abdomen. Male urosternite VII unarmed.

Male. Apical margin of membrane of hemelytra convex; median portion of posterior margin of urosternite VII concave; urosternite VII not reaching anteriorly the imaginary line connecting the spiracles of sternite V. Genitalia. Pygophore with dorsal rim sinuous ( Fig. 48C View FIGURE 48 , dr) and ventral rim shallowly concave ( Fig. 48D View FIGURE 48 , vr). Posterolateral angles 0.3 times shorter than the rest of the pygophore, perpendicular to the frontal plane and subparallel ( Fig. 48C–E View FIGURE 48 , pla). Setae short in a band on the ventral rim and outer surface of the posterolateral angles; 1 + 1 tufts of long setae on apices of posterolateral angles. Segment X wider than long, surpassing the apex of parameres and posterolateral angles; cordiform; laterobasal surface more sclerotized and densely covered by setae, apical margin sclerotized, emarginated and covered by setae; mid-longitudinal region membranous ( Figs. 48C and E, X; 48L–M View FIGURE 48 ). Parameres spatulate, flat, oblique to the frontal plane; outer margin sinuous, distal portion strongly convex; inner margin sinuous; apical margin sinuous and forming a minute process on the inner margin; apical portion covered by setae ( Figs. 48D–E View FIGURE 48 , pa; 48F–I). Cup-like sclerites externally visible ad with divergent apices ( Fig. 48D View FIGURE 48 , cls). Phallus: proximal portion of vesica almost as wide as distal margin of phallotheca, ventrally and dorsoposteriorlly expanded; distal portion subcylyndrical and ventrally directed; apical portion posteriorly directed; secondary gonopore beveled ( Fig. 48J–K View FIGURE 48 ).

Female. Membrane of hemelytra not reaching the posterior margin of mediotergite VIII, posterior margin convex; median portion of posterior margin of mediotergite VIII and median portion of posterior margin of urosternite VII subrectilinear; projections on the lateral 1/3 of posterior margin of urosternite VII absent.

Genitalia. Valvifers VIII wider than long; posterior margin sinuous with a triangular projection at the lateral angle; sutural margins subrectilinear and folded dorsally; surface dark yellowish with brown punctures, setae on the sutural margins and on median portion of the posterior margin; longitudinal grooves narrow and shallow on basal portion ( Figs. 5N View FIGURE 5 ; 49C View FIGURE 49 , vf8). Valvifers IX covered by the valvifers VIII, lateral margin subrectilinear, setae on mid-basal portion of ventral surface ( Fig. 49C–D View FIGURE 49 , vf9). Laterotergites IX not reaching the posterior margin of mediotergite VIII; lateral margin convex; setae on midbasal portion of lateral margin and ventral surface ( Fig. 49C–D View FIGURE 49 , la9). Thickening of vaginal intima sub hexagonal, wider than long; distal margin weakly emarginated; laterals weakly sclerotized; median subrectangular area membranous ( Fig. 49D View FIGURE 49 , vi). Vesicular area anterior to the collar 1/7 of the posterior portion; median duct anterior to the collar with slight proximal widening ( Fig. 49D View FIGURE 49 , mdp); median duct posterior to the collar with proximal and distal widening ( Fig. 49D View FIGURE 49 , md); inner duct coiled in the proximal widening ( Fig. 49D View FIGURE 49 , id). Distal ductus receptaculi of same caliber as the proximal ( Fig. 49D View FIGURE 49 , drd, drp). Pars intermedialisbroader distally ( Fig. 49D View FIGURE 49 , pi); proximal annular crest directed to the ductus receptaculi; distal annular crest perpendicular to the pars intermedialis ( Fig. 49D View FIGURE 49 , dac, pac). Capsula seminalis globose; long and sinuous laterobasal projection surpassing the proximal annular crest; laterodistal projection short ( Fig. 49D View FIGURE 49 , cs, pr).

Measurements: Table 22.

Distribution. Brazil (Tocantins, Goiás) ( Fig. 8 View FIGURE 8 ).

Comments. See comments in I. vellozia sp. n.. The segment X on males of Ischnopelta wigodizinkyi sp. n., although cordiform, has the apical margin less emarginated, and the setae denser on the laterobasal margins ( Fig. 48L–M View FIGURE 48 ).


University of the Witwatersrand


Botanischer Garten und Botanisches Museum Berlin-Dahlem, Zentraleinrichtung der Freien Universitaet


Museu Paraense Emilio Goeldi


Universidade Federal do Oeste do Pará


McNeese State University


Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo


Porto Alegre, Museu de Ciencias Naturais da Fundacao Zoo-Botanica do Rio Grande do Sul


&quot;Alexandru Ioan Cuza&quot; University


Nationaal Herbarium Nederland, Leiden University branch


Instituto de Biologia













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