Metacephalus DeLong & Martinson, 1973

Souza, Stephanie Pereira De, Takiya, Daniela Maeda & Felix, Márcio, 2017, Two new Metacephalus DeLong & Martinson, 1973 species (Hemiptera: Cicadellidae: Portanini) from Brazil and proposed synonymy with Paraportanus Carvalho & Cavichioli, 2009, Zootaxa 4281 (1), pp. 176-185 : 177-178

Metacephalus DeLong & Martinson

( Figures 1–3 )

Metacephalus DeLong & Martinson 1973: 225 , Figs. 1 –6. Type species: M. albocrux DeLong & Martinson, 1973 . Paraportanus Carvalho & Cavichioli 2009: 26 , Figs. 1 –14. Type species: P. jenniferae Carvalho & Cavichioli, 2009 . (syn. nov.)

Diagnosis. (partly based on Carvalho & Cavichioli 2009 and Carvalho 2012 for Paraportanus ): Crown ( Figs. 1 , 4, 11, 14, 21, 24) with anterior margin rounded. Crown, pronotum, and/or mesonotum ( Figs. 1 , 11, 21) usually marked with vibrant orange markings. Male pygofer (Figs. 5, 15, 25) strongly produced usually bearing pair of distinct spiniform processes on posteroventral margin. Subgenital plates (Figs. 6, 16, 26) triangular narrowing to apex; without unpigmented transverse line at basal third. Connective (Figs. 7, 17, 27) V- or Y-shaped with very short stalk.

Remarks. Carvalho & Cavichioli (2009) noted that species of Paraportanus could be divided into two groups; however, characters given for the separation of these groups are ambiguous for M. albocrux . Metacephalus albocrux shares with M. jenniferae ( Paraportanus type species) the broad and bifid style apex (Fig. 7); but with members of the other group, the fused connective and aedeagus (articulated in M. jenniferae ).

List and distribution of included valid species. For synonyms see Carvalho & Cavichioli (2009). Distributional records from original descriptions and additional records from Carvalho & Cavichioli (2009), Freytag & Sharkey (2002), and Felix & Mejdalani (2016).

Metacephalus adustus Souza, Takiya & Felix sp. nov. BRAZIL (Acre and Amazonas states).

Metacephalus albocrux DeLong & Martinson, 1973 . BRAZIL [new record] (Acre and Amazonas states) ; PERU (Ucayali Department).

Metacephalus bicornis (Carvalho & Cavichioli, 2003) comb. nov. ( Portanus ). BRAZIL (Amazonas [new record], Mato Grosso, and Rondônia states).

Metacephalus bimaculatus (Carvalho & Cavichioli, 2003) comb. nov. ( Portanus ). BRAZIL (Rondônia State).

Metacephalus cinctus (Carvalho & Cavichioli, 2003) comb. nov. ( Portanus ). BRAZIL (Mato Grosso and Rondônia states).

Metacephalus eburatus (Kramer, 1964) comb. nov. ( Portanus ). BRAZIL (Amapá State) ; COLOMBIA (Magdalena, Putumayo, and Vichada departments) ; GUYANA; PANAMA (Panama Province) ; VENEZUELA (Barinas State).

Metacephalus elegans (Kramer, 1961) comb. nov. ( Portanus ). BRAZIL (Amazonas, Mato Grosso, Pará, and Rondônia states) ; COLOMBIA (Amazonas and Putumayo departments) ; VENEZUELA (Amazonas State).

Metacephalus facetus (Kramer, 1961) comb. nov. ( Portanus ). BRAZIL (Acre [new record], Amazonas and Rondônia states) ; COLOMBIA (Amazonas and Putumayo departments) ; VENEZUELA (Amazonas State).

Metacephalus filamentus (DeLong, 1980) comb. nov. ( Portanus ). BRAZIL (Amapá State).

Metacephalus jenniferae ( Carvalho & Cavichioli, 2009) comb. nov. ( Paraportanus ). BRAZIL (Acre, Amazonas [new record], Maranhão, and Rondônia states).

Metacephalus longicornis (Osborn, 1923) comb. nov. ( Scaphoideus ). ARGENTINA (Misiones Province) ; BOLIVIA (Santa Cruz Department) ; BRAZIL (Amazonas, Ceará, Mato Grosso, Minas Gerais, Pará, Rondônia, and Roraima states) ; VENEZUELA.

Metacephalus marica ( Felix & Mejdalani, 2016) comb. nov. ( Paraportanus ). BRAZIL (Rio de Janeiro State).

Metacephalus longispinus ( Carvalho, 2012) comb. nov. ( Paraportanus ). BRAZIL (Amazonas and Roraima states).

Metacephalus variatus (Carvalho & Cavichioli, 2003) comb. nov. ( Portanus ). BRAZIL (Acre, Amazonas, Mato Grosso, Pará, and Rondônia states) ; PERU (Madre de Dios Department).

Metacephalus sakakibarai Souza, Takiya & Felix sp. nov. BRAZIL (Amazonas and Roraima states).

Figures

FIGURE 1. Metacephalus albocrux DeLong & Martinson. 1, dorsal habitus; 2, lateral habitus; 3, face; 4, crown, pronotum, and mesonotum; 5 – 10, male genitalia: 5, genital chamber, lateral view; 6, valve and subgenital plate, ventral view; 7, connective and right style, dorsal view; 8, right style, lateral view; 9, aedeagus, lateral view; 10, aedeagus, caudal view. Scale bars: D, 0.5 mm; others, 0.2 mm.

FIGURE 2. Metacephalus adustus Souza, Takiya & Felix sp. nov. 11, dorsal habitus; 12, lateral habitus; 13, face; 14, crown, pronotum, and mesonotum; 15 – 20, male genitalia: 15, genital chamber, lateral view; 16, valve and subgenital plate, ventral view; 17, connective and right style, dorsal view; 18, right style, lateral view; 19, aedeagus, lateral view; 20, aedeagus, caudal view. Scale bars: D, 0.5 mm; others, 0.25 mm.

FIGURE 3. Metacephalus sakakibarai Souza, Takiya & Felix sp. nov. 21, dorsal habitus; 22, lateral habitus; 23, face; 24, crown, pronotum, and mesonotum; 25 – 30, male genitalia: 25, genital chamber, lateral view; 26, valve and subgenital plate, ventral view; 27, connective and right style, dorsal view; 28, right style, lateral view; 29, aedeagus, lateral view; 30, aedeagus, caudal view. Scale bars: D, 0.5 mm; others, 0.25 mm.