Psorus cassidiformis Bergroth, 1914

Fernandes, José Antônio M., Grazia, Jocelia & Lobo, Deise S., 2008, Revision of the genus Psorus Bergroth, 1914 (Hemiptera: Pentatomidae: Discocephalinae), Zootaxa 1696, pp. 48-56 : 50

Psorus cassidiformis Bergroth, 1914

( Figs. 1–3 , 14 )

Psorus cassidiformis Bergroth, 1914: 425 .

Measurements. Body length: 14.5–15.2; head length: 2.7–3.2; head width: 3.2–3.7; pronotum width: 8.7– 10.3; pronotum length: 2,8–3.2; abdominal width: 8.8–10.8.

Male. Dorsal rim of pygophore with median third almost rectilinear. Median margins of posterolateral angles of pygophore almost rectilinear. Proctiger (segment X) as long as posterolateral angles of pygophore; apex of process of ventral wall obtusely rounded. Parameres hardly visible from dorsal side; in ventral view attaining middle of proctiger. Lateral margins of parameres almost rectilinear ( Figs. 1–2 ).

Female ( Fig. 14 ). Posterior margins of gonocoxites 8 slightly angulate; folded areas along lateral margins of gonocoxites 8 and median margins of laterotergites 8 more conspicuous than in P. paraensis , not obscured by the gonocoxites 8 ( Fig. 3 ).

Material examined. Male, no data ( AMNH). TRINIDAD: Maraval, B. W. I., female, 9.X.1921, W. Buthn, Lutz Collection 1961, Psorus cassidiformis Bergroth, Herbert Ruckes ( NMNH). BRAZIL: Amazonas, Itamarati , Monte Calvário , 06° 07’ 29’’S, 68° 02’ 41’’W, male, 10–15.X.1999, Cristina M. Buhrnheim & Tomáz L. Gualberto col., a luz mista de mercúrio ( UFRG); Coari, Rio Urucu , Igarapé Marta-3, 4°50’0,73’’S, 65°02’37’’W, female, 14–25.VII.1993, P. F. Bührnheim et al. col. ( CZPB). PERU: Madre de Dios, Manu , Rio Manu , 250 m, Pakitza , 12°7’S, 70°58°W, 2 females, 9–3.IX.1988, Waine N. Mathis ( NMNH); Pucallos, Rio Ucayali (200 m), female, I.1961, Dirings ( MZSP).

Figures

FIGURE 14. Psorus cassidiformis Bergroth, 1914, female, dorsal view. (Scale = 4 mm).

FIGURES 1 – 3. Psorus cassidiformis Bergroth, 1914. 1 - 2, male, pygophore; 1 — dorsal view; 2 — ventral view; 3, female, genital plates (pla—posterolateral angle; dr—dorsal rim; vr—ventral rim; Gc 8 — gonocoxites 8; La 8, laterotergites 8; La 9 — laterotergites 9; pa—paramere; pyg—pygophore; VII—urotergite VII; x—abdominal segment X. Scale = 1 mm).