Horvathinia pelocoroides Montandon

Schnack, Juan A. & Estévez, Ana L., 2005, On the taxonomic status of the genus Horvathinia Montandon (Hemiptera: Belostomatidae), Zootaxa 1016 (1), pp. 21-27 : 22-24

Horvathinia pelocoroides Montandon

Horvathinia pelocoroides Montandon 1911: 245–246 (female, southern Brazil); De Carlo (1957) 1958: 46 (notes); Schnack 1976: 45 (notes)

Horvathinia doellojuradoi De Carlo 1930 (Description holotype ♀); De Carlo 1938: 248–249 (notes); De Carlo (1957) 1958: 51–52 (notes); Schnack 1976: 45 (notes). NEW SYNONYMY

Horvathinia pelleranoi De Carlo 1930: 122–123 (Description holotype ♀); De Carlo 1938 (notes): 249–250; De Carlo (1957) 1958: 46–47 (notes); Schnack 1976: 45 (notes). NEW SYNON­ YMY

Horvathinia meyeri De Carlo 1938: 250–251 (Description holotype ♀); De Carlo (1957) 1958: 49– 50 (notes); Schnack 1976: 45 (notes). NEW SYNONYMY

Horvathinia castilloi De Carlo 1938: 251–252 (Description holotype ♀); De Carlo (1957) 1958: 50 (notes); Schnack 1976: 44 (notes). NEW SYNONYMY

Horvathinia schubarti De Carlo (1957) 1958: 50 –51 (Description holotype ♂); Schnack 1976: 46 (notes). NEW SYNONYMY

Horvathinia bollei De Carlo (1957) 1958: 52 (Description holotype ♂); Schnack 1976: 44 (notes). NEW SYNONYMY

Horvathinia forsteri Lauck 1958: 237–239 (Description holotype ♂); Schnack 1976: 46 (notes). NEW SYNONYMY

Horvathinia argemii Schnack 1972: 64–66 (Description holotype ♀); Schnack 1976: 44 (notes). NEW SYNONYMY

Redescription of Horavthinia pelocoroides Montandon

Size. Length. ♂♂: 23–28 mm, ♀♀: 25–30 mm; width: ♂♂: 13–16 mm; ♀♀: 14–16 mm.

Color. Brown, or mottled yellow and brown.

Shape. Body ovate ( Fig. 1 ).

Head. Anteclypeus­maxillary plate suture shorter than anteclypeus­loral plate suture; anteoculus shorter than interoculus; eyes triangular, longer than wide ( Fig. 2 ); segment I of beak distinctly shorter than segment II ( Fig. 3 a ).

Thorax. Prosternal keel acutely pointed, projecting anterad ( Fig. 3 b ). Front tarsus onesegmented, with vestigial claws. Hind legs sub­quadrate in cross­ section and with hydrofuge hairs and spines, densely arranged.

Abdomen. Pilosity covering almost half of laterotergites and sides of genital operculum; with fold arising from basal angle of genital operculum, this fold subdividing fifth and sixth sternites ( Fig. 4 ). Air straps separated from abdominal middle line.

Male genitalia. Ventral diverticulum curved ventrad, fused with aedeagus ( Fig. 5 ), and distally slightly concave ( Fig. 6 ). Phallobase covering ventral diverticulum at thickened lateral margins ( Figs. 5, 7 ).

Specimens examined

Types

ARGENTINA. Misiones. Holotype ♀ H. argemii, Loreto. Ogloblin coll. ( MLP) ; Holotype H. castilloi ♀, Apóstoles, S. Castillo coll. ( MACN) . Chaco: Holotype ♀ H. meyeri, Fontana , XI­1934, Meyer coll. ( MACN) . Chubut?: Holotype ♀ H. doellojuradoi (MLP) . Corrientes: Holotype ♀ H. pelleranoi, Sto. Tomé , IX­1926, Pellerano coll. ( MACN) . BOLIVIA. Holotype ♂ H. forsteri, Chapare, Chipiriri , XI­1953, ( KU) . BRA­ ZIL. Cotype ♂ H. pelocoroides , Rio Grande ( HNHM) . Holotype ♂ H. schubarti, S. Paulo. Pirassununga , XI­1940, Schubart coll. ( MACN) . PARAGUAY. Holotype ♂ H. bollei, Cuá Guazú , XII­1952, S. Bolle coll. ( MACN) .

Other specimens.

ARGENTINA. Corrientes, Ituzaingó , Martínez coll. 1 ♂ ; Colonia Pellegrini , Muzón coll. 1♂ 1♀ ( MLP) ; BRAZIL. S. Paulo, Cosmopolis , I­1974, 2 ♀ ( JTPC); S. Jose dos Campos XI­1960, D.L.Tiemann coll. 4 ♂ ( LACM); S. Jose dos Campos I­1963, 1 ♂ ( LACM); S. Jose dos Campos XI­1969, 1 ♂ ( LACM); Rio G. do Sul, 1 ♂ ( LACM); Rio Grande do Sul, Torres, II­1982, Schnack coll. 15 ♂ 15 ♀ ( MLP), 4 ♂ 1 ♀ ( JTPC) .

Distribution. Northeastern Argentina, southern Brazil, Paraguay, and Bolivia. We regard the label legend “ Chubut ” for H. doellojuradoi (Holotype ♀) as erroneous because Chubut is a southern Patagonian province of Argentina and Horvathinia is a subtropical taxon.

Figures

FIGURES 1–7. Horvathinia pelocoroides Montandon; 1, body form; 2, head dorsal view; 3, head lateral view; a. beak, b. prosternal keel; 4, abdominal pilosity; 5–7, male genitalia; 5, lateral view; 6, dorsal view; 7, ventral view.