Chionomus haywardi ( Muir, 1929 )

Campodonico, Juan F., 2017, New distributional records of Delphacidae (Hemiptera: Fulgoroidea) from Chile., Arquivos Entomolóxicos 17, pp. 119-128 : 120

Chionomus haywardi ( Muir, 1929) ( Figs. 1-8 , 43)

Delphacodes haywardi Muir, 1929 - Muir (1929:83); Remes-Lenicov & Virla (1996:165); Tesón & Remes-Lenicov (1983:322); Remes-Lenicov & Virla (1999:11); Remes-Lenicov et al. (2000:93); Velázquez et al. (2003:669).

Chionomus haywardi ( Muir, 1929) – Fennah (1971:324) (Combination); Weglarz (2012:44).

Delphacodes collaris Remes-Lenicov & Tesón, 1978 – Remes-Lenicov & Tesón (1978:17); Tesón & Remes-Lenicov (1983:322) (Synonymy).

Material examined; CHILE; VALPARAÍSO REGION; Marga-Marga province; Quilpué, Fundo El Carmen , 33°02’S, 71°27’W, 90-120 m, 14.III.2015, J.F. Campodonico leg., 2 ♂♂ (macropterous), 1 ♀ (macropterous) ( JFCW) ; Las Cruces , 33°29’S, 71°38’W, 10 m, 18.VII.2016, J.F. Campodonico leg., 1 ♂ (macropterous) ( JFCW) ; METROPOLITANA REGION; Santiago province; Vitacura, Plaza Los Tribunales , 33°22’S, 70°32’W, 765 m, 19.V.2015, J.F. Campodonico leg., sweeping, 4 ♂♂ (macropterous), 1 ♀ (macropterous) ( JFCW) , 2 ♂♂ (macropterous), 1 ♀ (macropterous) ( MNNC) , 2 ♂♂ (macropterous), 1 ♀ (macropterous) ( UDCC) ; Maip ̇, Quebrada de la Plata , 33°29’S, 70°54’W, 650 m, 25.V.2016, J.F. Campodonico leg., sweeping, 1 ♂ (macropterous) ( JFCW) , 2 ♂♂ (macropterous), 1 ♀ (macropterous) ( MEUC) ; MAULE REGION; Talca province ; PUtú, 35°40’S, 72°11’W, 11 m, 16.VII.2016, J.F. Campodonico leg., sweeping, 3 ♂♂ (macropterous) ( JFCW) .

Male genitalia; Pygofer ( Figs. 4-5 ) with opening as an inverted triangle; armature of diaphragm distinctly projecting caudad; anal tube ( Fig. 6 ) with two converging spines directed ventrad; parameres ( Fig. 7 ) wide and short, narrower at the middle, inner angle acute and outer angles rounded; aedeagus ( Fig. 8 ) tubular, wider near base, slightly curved dorsad ( Muir 1929, Remes-Lenicov & Tesón 1978, Weglarz 2012).

Previously recorded from Argentina and Uruguay ( Muir 1929, Remes-Lenicov et al. 2000). Description of female in Remes-Lenicov & Tesón (1978) and Tesón & Remes-Lenicov (1983). Immature stages described by Remes-Lenicov & Virla (1996). Chionomus haywardi has been syndicated as a vector of Mal de Río Cuarto maize virus in Argentina ( Velázquez et al. 2003) .

Figures

Figs. 1-8.- Chionomus haywardi, macropterous male. 1.- Habitus, dorsal view. 2.- Habitus, lateral view. 3.- Head, frontal view. 4.- Pygofer, caudal view. 5.- Pygofer, lateral view. 6.- Anal tube, lateral view. 7.- Right paramere, caudal view. 8.- Aedeagus, lateral view.