Ciminius platensis (Berg)

Alasmar, Luísa, Domahovski, Alexandre Cruz & Cavichioli, Rodney Ramiro, 2025, Morphological-based phylogeny and revision of Ciminius Metcalf and Bruner, 1936 (Hemiptera, Cicadellidae), Arthropod Systematics & Phylogeny 83, pp. 231-285 : 231-285

Ciminius platensis (Berg)

Figures 8 , 9 , 28 G, H , 50 A, B

Acocephalus dubius Berg, 1879: 259.

Tettigonia dubia nomen nudum Berg, 1884: 162.

Tettigonia platensis Berg, 1884: 162.

Ciminius platensis Young, 1977: 593.

Diagnosis.

Coloration pale-yellow (Figs 8 A – C , 28 G, H ). Aedeagus (Fig. 8 G, H ) bearing from two to three large teeth on median third of ventral margin, apex expanded, broadly rounded, forming a hood-like structure. Paraphysis (Fig. 8 I ) almost rectilinear in lateral view, directed posterodorsally, apex acute; in dorsal view (Fig. 8 J ), broad at base, strongly narrowing towards apex.

Description.

Measurements: Total length: males (n = 20) 4.0– 4.6 mm, females (n = 20) 4.5–5.5 mm. — Crown: (Figs 8 A , 28 G ), in dorsal view, slightly produced, anterior margin from broadly rounded to subtriangular; median length of crown from 3 / 8 to 1 / 2 of intraocular width, and about 1 / 4 of transocular width. Pronotum width slightly greater than transocular width. Ocelli aligned to imaginary line between anterior eye angles. Other features as in generic description. — Coloration: Overall coloration pale-yellow (Figs 8 A – C , 28 G, H ), as described for C. albolineatus . — Male terminalia: Pygofer (Fig. 8 D ), in lateral view, posterior margin from broadly to narrowly rounded. Subgenital plate (Fig. 8 D ), in lateral view, slightly exceeding posteriorly half-length of pygofer. Valve (Fig. 8 E ), in ventral view, anterior and posterior margins subparallel; lateral margins narrowly rounded anteriorly. Style (Fig. 8 F ), in dorsal view, without preapical lobe. Aedeagus (Fig. 8 G, H ), in lateral view, shaft expanded on basal half, ventral margin bearing two or three large teeth medially, apical portion expanded, apex rounded, forming a hood-like structure. Paraphysis (Fig. 8 I, J ), in lateral view, directed posterodorsally, rectilinear, dorsal and ventral margins subparallel, not attaining pygofer apical third, apex acute. Other features as in generic description. — Female terminalia: Sternite VII (Fig. 9 A – C ), in ventral view, 1.6 × wider than long, posterior margin with a slight median lobe. Valvula II (Fig. 9 F – H ) blade with 12 continuous triangular serrated teeth, with a distinct gap in anterior margin of teeth. Other features (Fig. 9 D, E, I, J ) as in generic description.

Material examined.

BRAZIL – Rio Grande do Sul • 1 ♂; Areias Brancas, Torres ; Fev. 1983; K. Zanol leg.; DZUP • 3 ♀♀; Águas Belas, Viamão , 3–4 Mar. 1980; K. Zanol leg.; DZUP • 1 ♂; Santa Maria , UFSM; 29°43’02.2”S, 53°43’07”W; 08 Fev. 2023; C. V. Rodrigues, F. D. Souza, G. Flores leg.; DZUP . – Paraná • 6 ♂, 6 ♀ Curitiba , Mar. 1983, Cavichioli leg.; DZUP • 2 ♂♂, 2 ♀♀; same collection data as for preceding; Sakakibara leg.; DZUP • 1 ♂, 7 ♀♀ same collection data as for preceding; A. M. S. e R. R. C. leg.; DZUP • 1 ♂, 1 ♀ same collection data as for preceding; Mar. 1982; Sakakibara leg.; DZUP • 1 ♂; Piraquara, Mananciais da Serra ; 25°29’47”S, 48°58’54”W; 1021 m; 20 Feb. 2022; A. P. Pinto, J. Ehlert & L. Polizeli leg.; DZUP • 2 ♂♂, 2 ♀♀; Curitiba, Centro Politécnico , UFPR, grasslands fields near Biológicas Departament; 20–25 Jan. 2022; Sweep; A. C. Domahovski & L. Alasmar; DZUP • 2 ♂♂, 2 ♀♀; Diamante do Norte, E. E. Caiuá ; 14 Dec. 2012; M. Savaris & S. Lampert leg.; Luiz de Queiroz trap; DZUP • 1 ♂, 7 ♀♀; Umuarama ; Feb. 1986, A. F. Yamamoto leg.; DZUP • 1 ♂, 1 ♀; Porecatu ; 20 Oct. 1970, Becker-Hatschback leg.; DZUP • 1 ♂, 9 ♀; Ponta Grossa, P. E. Vila Velha ; 25.247579°S, 49.992188°W; 930 m; 14 Dec. 2022, A. P. Pinto, A. C. Domahovski, L. Alasmar, J. Ehlert & L. P. Aguiar leg.; Sweep; DZUP • 8 ♂♂, 1 ♀; São José dos Pinhais ; 25°36’18’’S, 49°11’37’’W; 880 m; 06 May 2023; A. C. Domahovski leg.; sweep; DZUP • 3 ♂♂, 1 ♀; Tuneiras do Oeste, REBIO das Perobas ; 01–04 APr. 2024; A. C. Domahovski & L. Alasmar; sweep; DZUP . – Espírito Santo • 1 ♂; Linhares, Res. Vale Rio Doce, main station ; 19.0905°S, 40.0410°W; 56 m; 07 May 2007; J. A. Rafael & F. F. Xavier F. leg.; light; DZUP • 1 ♂, 3 ♀♀; Linhares ; Sep. 1972; M. Alvarenga, leg.; DZUP . – Minas Gerais • 2 ♂♂, 4 ♀♀; Águas Vermelhas ; Dec. 1983; M. Alvarenga leg.; DZUP • 2 ♂♂, 12 ♀♀; São Gonçalo Rio Abaixo, Estação Ambiental Peti-Cemig ; 15 Apr. 2013; 19°53’02”S, 43°22’21”W; A. Lima, A. F. Kumagai & P. Dias leg.; light; DZUP • 1 ♀; Lavras, Campus UFLA , 16–18 Sep. 2013, ~ 905 m, 21°13’50”S, 44°58’32”W, M. N. Morales leg.; Malaise; DZUP . – Mato Grosso do Sul • 3 ♂♂, 5 ♀♀; Porto Murtinho ; 07 Dec. 2012; M. Savaris & S. Lampert leg.; light trap; DZUP . – Alagoas • 1 ♂ Jacaré dos Homens ; 9.662725°S, 37.233245°W, Jun. 2024, S. Cajé & J. Duarte-De-Mélo leg; light; DZUP . – Bahia • 1 ♂, 11 ♀♀ Encruzilhada ; Nov. 1974; 980 m; Alvarenga leg.; DZUP • 4 ♀♀; same collection data as for preceding; Dec. 1980; DZUP • 4 ♀♀; Senhor do Bonfim, Serra Santana ; 10.23223°S, 40.1159°W; 520 m; 15 May 2007; J. A. Rafael & F. F. Xavier F., light; DZUP . – Ceará • 35 ♂♂, 27 ♀♀; Cratéus, RPPN Serra das Almas ; 5.11°S, 40.87°W; 320 m; 18 Apr. 2014; Melo & Rosa; light trap; DZUP • 2 ♂♂, 1 ♀; same collection data as for preceding; 22 May 2014; DZUP • 3 ♂♂, 18 ♀♀; same collection data as for preceding; 4.8107°S, 38.9740°W; 220 m; 15 May 2014; DZUP • 2 ♂♂; Ubajara, PN de Ubajara, Park entry ; 3°50’18,00”S, 40°53’54,00”W; 849 m; 23 Apr. 2012; Câmara, J. T. leg.; light trap; DZUP . – Paraíba • 4 ♂♂, 1 ♀; Mamanguape, Reserva Biológica Guaribas ; 6.7421°S, 35.1426°W; 13–16 May 2023, A. Martins & G. Celante leg.; light trap; DZUP • 2 ♂♂, 5 ♀♀; same collection data as for preceding; sweep; DZUP • 1 ♂, 5 ♀♀; Pocinhos, Caatinga Km 230 , 7.1437°S, 36.1357°W; 15 May 2023; A. L. Martins leg.; sweep; DZUP . – Pernambuco • 3 ♂♂, 10 ♀; Afrânio ; 08.3153°S, 41.0259°W; 550 m; 16 May 2007; J. A. Rafael & F. F. Xavier F. leg.; Manual; DZUP . – Piauí: 2 ♂♂, 9 ♀♀; Ubajara ; 03°50’77”S, 40°53’53”W; 846 m; 22 Apr. 2012, R. R. Cavichioli leg.; light; DZUP • 1 ♀; Coronel José Dias, P. N. Serra da Capivara ; 590 m; 08°44’3.89”S, 42°30’10.56”W; 08–12 Mar. 2016, R. M. Feitosa, G. P. Camacho & F. O. Marfins leg.; DZUP • 1 ♂; Piracuruca, PN de Sete Cidades , dormitory; 4°5’57,00”S, 41°42’34,00”W; 193 m; 18–19 Apr. 2012; Takiya, D. M. leg.; light; DZUP . – São Paulo • 5 ♂♂, 1 ♀; Marília ; 22.18927°S, 49.92630°W; 18–20 Nov. 2022; L. Alasmar leg.; sweep; DZUP • 2 ♂♂ same collection data as for preceding; 22.19384°S, 49.92172°W; DZUP • 2 ♂♂; same collection data as for preceding; Condomínio Green Valley ; 22.16342°S, 50.00271°W; 07 Jan. 2023; DZUP .

Remarks.

Ciminius platensis is a common species collected with sweeping net in open field grasses, and along with Ciminius autumnalis sp. nov. and C. sidanus , do not present male black specimens known. Ciminius platensis can be differentiated from the latter securely due to the aedeagus with few and large teeth ventrally and paraphysis rectilinear and short.

Figures

Figure 8. Ciminius platensis, male. A habitus, dorsal view; B habitus, lateral view; C head, frontal view; D pygofer, valve and subgenital plate, lateral view; E valve and subgenital plates, ventral view; F connective and style, ventral view; G aedeagus, lateral view; H aedeagus, caudoventral view; I connective, stem and paraphysis, lateral view; J paraphysis, dorsal view. Scale bars in mm.

Figure 9. Ciminius platensis, female. A distal portion of abdomen, ventral view; B distal portion of abdomen, lateral view; C sternite VII, ventral view; D first valvifer and first valvula, lateral view; E apical portion of first valvula; F second valvula, lateral view; G median portion of second valvula; H apical portion of second valvula; I second valvifer and gonoplac, lateral view; J apical portion of gonoplac. Scale bars in mm.

Figure 28. Ciminius females habitus, dorsal and frontal view, respectively. A, B C. albolineatus, pale-yellow variety; C, D C. albolineatus, black variety; E, F C. hartii; G, H C. platensis. Scale bars in mm.

Figure 50. Records of parasitism by Strepsiptera in Ciminius. A C. platensis superparasitized, in ventral view; B C. platensis superparasitized, with abdomen clarified, in ventral view; C female of Ciminius dissidens sp. nov., in lateral view.