Takiyaella cavichiolii, Gonçalves & Domahovski, 2021

Gonçalves, Clayton C. & Domahovski, Alexandre C., 2021, A new genus and five new species of Neocoelidiinae leafhoppers from Brazil (Insecta: Hemiptera: Cicadellidae) with a key to males, European Journal of Taxonomy 775, pp. 34-61 : 41-44

Takiyaella cavichiolii gen. et sp. nov.

urn:lsid:zoobank.org:act:0E144EA1-5D79-44F8-8042-E34B81111F8D

Figs 3–4 , 12C–D , 13

Diagnosis

Male pygofer ( Fig. 3E ) expanded apically, with two lobes, dorsal lobe larger and subtriagular, apical lobe smaller and rounded. Aedeagus ( Fig. 3J–L ) with atrial processes slender, parallel and following the curvature of shaft, apex acute; shaft expanded apically, spatulate, with lateral small spiniform projections. Anal tube ( Fig. 3M ) with triangular basiventral process.

Etymology

The specific epithet is a tribute to Prof. Dr Rodney Ramiro Cavichioli in recognition of his remarkable contribution to our knowledge of the Brazilian Auchenorrhyncha .

Material examined

Holotype BRAZIL • ♂; PR [Paraná], S. J. [ São José ] dos Pinhais, Rep. [Represa] Guaricana ; 25.7176º S, 48.9640º W; alt. 760 m; 9 Jan.–1 Feb. 2018; Muniz, Melo, Cavichioli and Domahovski leg.; Malaise trap; DZUP 492451 ; DZUP.

Paratypes BRAZIL – Paraná • 1 ♂; Antonina, Res. [Reserva] Rio Cachoeira ; 25.316º S, 48.696º W; alt. 50 m; 23–27 Jan. 2017; A.C. Domahovski leg.; luz solo [ground light]; DZUP 492472 ; DZUP • 1 ♀; same collection data as for preceding; DZUP 492471 ; DZRJ • 1 ♀; same collection data as for preceding; DZUP 492473 ; DZUP • 1 ♀; Antonina, RPPN [ Reserva Particular do Patrimônio Natural ] Guaricica ; 25.316º S, 48.696º W; alt. 50 m; 23–27 Oct. 2017; A. Domahovski, G. Melo, A. Pinto and M. Savaris leg.; Malaise trap; DZUP 492477 ; DZUP • 1 ♂; Guaratuba, Estrada dos Castelhanos; 25°50′ S, 48°56′ W; alt. 790 m; 18 Oct.–2 Nov. 2003; Ivanir leg.; Malaise trap; DZRJ-AUCH #241 • 1 ♂; Morretes, P.E. [Parque Estadual] do Marumbi, caminho para Estação Eng. [Engenheiro] Lange ; 25º25′41″ S, 48º54′55″ W; alt. 330 m; 27 Sep. 2016; A.C. Domahovski leg.; sweep; DZUP 492460 ; DZRJ • 1 ♀; same collection data as for preceding; DZUP 492461 ; DZRJ • 1 ♀; Brasil, Paraná, Morretes ; 23 Feb. 2018; A.C. Domahovski leg; sweep; DZUP 492450 ; DZUP • 1 ♀; Piraquara, Mananciais da Serra ; 25º29′47″ S, 48º58′54″ W; alt. 1021 m; 21–28 Nov. 2018; A.P. Pinto, B.R. Araujo and A.C. Domahovski leg.; sweep; DZUP 083595 ; DZUP • 1♂; São José dos Pinhais , Br 277 km 54 ( Torre – Telepar ); 25º33′18″ S, 48º58′22″ W; alt. 1060 m; 1–15 Oct. 2015; A.C. Domahovski and RRC [R.R. Cavichioli] leg.; Malaise trap; DZUP 492394 ; DZRJ • 2 ♂♂; same collection data as for preceding; 15–22 Sep. 2015; DZUP 492322 to 492323 ; DZUP .

Description

MEASUREMENTS (mm). Holotype (♂): total length 6.8. Paratypes (♂): 6.5–6.8 (n = 6); (♀) 7.1–7.4 (n = 6).

COLORATION. Pale yellow ( Fig. 12C–D ). Forewing ( Fig. 3D ) translucent, with three small dark maculae on claval comissure: first, smaller, between base and second anal vein, second, between anal veins, and third on apex of clavus and extending to brachial cell; in some specimens the first pair is absent, and in one specimen, first and second pairs are absent.

HEAD AND THORAX. External morphological characters as in generic description.

MALE TERMINALIA. Pygofer, in lateral view ( Fig. 3E ), 1.5× as long as maximum height, expanded apically, apical portion higher than basal portion; dorsal margin with prominent preapical subtriagular lobe; ventral tooth broadly rounded; caudal margin with ventral rounded lobe; few small setae scattered on apical half; apical portion with inner integument thickening. Subgenital plate, in lateral view ( Fig. 3F ), subtriangular, 3.3 × as long as maximum height, slightly expanded medially; in ventral view ( Fig. 3G ), subrhomboid, lateral margins converging anterad on basal one-fifth and converging towards apex on apical four-fifths; ventral surface with one or two pairs of apical macrosetae; apex slightly truncated. Connective ( Fig. 3H ) V-shaped, total length approximately ⅔ length of style; stem very short. Style ( Fig. 3H–I ) with apophysis very elongated and slender; ventral margin distinctly rounded near median third. Aedeagus ( Fig. 3J–L ) with pair of atrial processes parallel and following curvature of shaft, each process approximately ½ length of shaft, broad at base and tapering towards acute apex; shaft slightly flattened dorsoventrally, apical portion expanded laterally, spatulate, lateral margins with some small spiniform projections. Anal tube ( Fig. 3M ) with sternite X long and tubular, with triangular basiventral process with denticles.

FEMALE TERMINALIA. Sternite VII ( Fig. 4A–C ) as long as wide; posterior margin slightly excavated medially. First valvula of ovipositor ( Fig. 4F ) with dorsal sculptured area areolate-strigate. Other characters as in generic description.

Remarks

Takiyaella cavichioli gen. et sp. nov. is most similar to T. sexguttata ( Chiamolera & Cavichioli, 2003) gen. et comb. nov. by the shape of male pygofer with two lobes, one dorsal and one apical ( Figs 3E , 10D ) and the shape of the aedeagal shaft expanded apically, with lateral margins rounded, bearing several small spiniform projections ( Figs 3J–L , 10I–J ). However, T. cavichioli gen. et sp. nov. differs in having the style slender and the aedeagus with atrial processes parallel to the shaft and following its curvature ( Fig. 3J ), while in T. sexguttata gen. et comb. nov. the style is wider, and the atrial processes are shorter, not parallel to the shaft ( Fig. 10I ).

Figures

Fig. 3. Takiyaella cavichiolii gen. et sp. nov., ♂, holotype (DZUP 492451). A. Head and thorax, dorsal view. B. Head, frontal view. C. Head and thorax, lateral view. D. Forewing. E. Pygofer, lateral view. F. Valve and subgenital plate, lateral view. G. Valve and subgenital plate, ventral view. H. Style and connective, dorsal view. I. Style, lateral view. J. Aedeagus, lateral view. K. Aedeagus, caudal view. L. Aedeagus, ventral view. M. Anal tube, lateral view. Scale bars: A–C = 1.0 mm; D = 2.0 mm; E–I, M = 0.5 mm; J–L = 0.4 mm.

Fig. 4. Takiyaella cavichiolii gen. et sp. nov., ♀, paratype (DZUP 492477). A. Posterior portion of abdomen, ventral view. B. Posterior portion of abdomen, lateral view. C. Sternite VII, ventral view. D. Pygofer and anal tube, lateral view. E. First valvifer and first valvula of ovipositor, lateral view. F. Apex of first valvula, lateral view. G. Second valvula of ovipositor, lateral view. H. Apex of second valvula, lateral view. I. Second valvifer and gonoplac, lateral view. J. Apex of gonoplac, lateral view. Scale bars: A–B = 1.0 mm; C–E, G, I = 0.5 mm; F, H, J = 0.3 mm.

Fig. 12. Habitus of type specimens, dorsal and lateral view, respectively. A–B. Takiyaella anomala gen. et sp. nov., ♂, holotype (DZRJ-AUCH #238). C–D. T. cavichiolii gen. et sp. nov., ♂, holotype (DZUP 492451). E–F. T. coelhomarquesae gen. et sp. nov., ♂, holotype (DZUP-083605). G–H. T. daniela gen. et sp. nov., ♂, holotype (DZRJ-AUCH #244). I–J. T. mejdalanii gen. et sp. nov., ♂, holotype (DZRJ- AUCH #246). K–L. T. sexguttata (Chiamolera & Cavichioli, 2003) gen. et comb. nov., ♂, holotype (DZUP-082927). M. Labels of the holotype of Xenocoelidia sexguttata. Scale bars: A–L = 2.0 mm.

Fig. 13. Distribution map of all known species of Takiyaella gen. nov.

Fig. 10. Takiyaella sexguttata (Chiamolera & Cavichioli, 2003) gen. et comb. nov., ♂, holotype (DZUP-082927). A. Head and thorax, dorsal view. B. Head, frontal view. C. Head and thorax, lateral view. D. Pygofer, lateral view. E. Valve and subgenital plate, lateral view. F. Valve and subgenital plate, ventral view. G. Styles and connective, dorsal view. H. Style, lateral view. I. Aedeagus, lateral view. J. Aedeagus, caudal view. K. Aedeagus, ventral view. L. Anal tube, lateral view. Scale bars: A–C = 1.0 mm; D–H, L = 0.5 mm; I–K = 0.4 mm.