Takiyaella anomala, 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 : 38-41

Takiyaella anomala gen. et sp. nov.

urn:lsid:zoobank.org:act:3E2E98B6-FDAE-4452-A5E2-18957D9B57A0

Figs 1–2 , 12A–B , 13

Diagnosis

Forewing ( Fig. 1D ) with three dark maculae, two on clavus and one on fourth apical cell. Male pygofer ( Fig. 1E ) rectangular, not expanded apically. Connective ( Fig. 1H ) Y-shaped. Aedeagus ( Fig. 1J–K ) with atrial processes slender, directed posterad, with three spiniform projections; shaft flattened laterally, not expanded apically.

Etymology

The specific epithet alludes to the singular set of morphological characteristics of this species.

Material examined

Holotype BRAZIL • ♂; Rio de Janeiro, Cachoeiras de Macacu , REGUA [Reserva Ecológica de Guapiaçu], ponto 4 , casa de pesquisa , trilha verde ; 22°24′28.30″ S, 42°44′16.10″ W; alt. 296 m; 25 May 2019; R.L.C. Baptista leg.; coleta visual alta diurna [daytime high visual collection]; DZRJ-AUCH #238; DZRJ.

Paratypes BRAZIL – Rio de Janeiro • 1 ♂, 1 ♀; Itatiaia, PNI [ Parque Nacional de Itatiaia ], Lago Azul , mata , PNI-M3B; 22°27′1.10″ S, 44°36′55.30″ W; alt. 830 m; 1–3 Dec. 2015; Biota FAPERJ leg.; Malaise trap; MNRJ • 1 ♀; same collection data as for preceding; DZUP-083604 ; DZUP .

Description

MEASUREMENTS (mm). Holotype (♂): total length 6.2. Paratypes (♂): 6.1 (n = 1); (♀) 6.7 – 6.8 (n = 2).

COLORATION. Pale yellow ( Fig. 12A–B ). Forewing ( Fig. 1D ) yellow, translucent, with three dark maculae: first on claval comissure between anal veins, second on apex of clavus and extending to brachial cell, and third on fourth apical cell.

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

MALE TERMINALIA. Pygofer, in lateral view ( Fig. 1E ), 1.6 × as long as maximum height, not expanded apically, basal portion slightly higher than apical portion; dorsal margin slightly convex; ventral tooth

prominent and rounded; caudal margin truncated; few small setae scattered on middle third. Subgenital plate, in lateral view ( Fig. 1F ), 2.9 × as long as maximum height, expanded medially; dorsal margin slightly convex; ventral margin oblique in the apical half; apical third strongly narrowed; in ventral view ( Fig. 1G ), subtriangular, lateral margins parallel on basal half and strongly converging on apical half; ventral surface with pair of uniseriate rows of 5–6 macrosetae; apex acute. Connective ( Fig. 1H ) Y-shaped, total length about 3 /5 length of style; stem approximately as long as arms. Style ( Fig. 1H– I ) with dorsal margin of apodeme broadly rounded, ventral margin acutely produced anteroventrally; apophysis elongated, robust. Aedeagus ( Fig. 1J–K ) with pair of slender atrial processes, each process with approximately half length of shaft, directed posterad and strongly divergent in ventral view, apical third with three spiniform projections, one longer on dorsal margin, and two smaller on apex; shaft flattened laterally, curved dorsally at basal third, with pair of small subapical ventral lamellae. Anal tube ( Fig. 1E ) with sternite X long and tubular, without basiventral process.

FEMALE TERMINALIA. Sternite VII ( Fig. 2A–C ) 1.2 × as long as wide; lateral margins parallel; posterior margin widely rounded. First valvula of ovipositor ( Fig. 2F ) with dorsal sculptured area areolate-strigate. Other characters as in generic description.

Remarks

Takiyaella anomala gen. et sp. nov. is the species that most differs from the other species of the genus, being the only one to have the forewing with a dark-brown macula in the fourth apical cell ( Fig. 1D ); male pygofer, in lateral view, not expanded apically, caudal margin without ventral lobe ( Fig. 1E ); connective Y-shaped ( Fig. 1H ); and aedeagus with shaft laterally compressed and not expanded apically ( Fig. 1J–K ).

Figures

Fig. 1. Takiyaella anomala gen. et sp. nov., ♂, holotype (DZRJ-AUCH #238). A. Head and thorax, dorsal view. B. Head, frontal view. C. Head and thorax, lateral view. D. Forewing. E. Pygofer and anal tube, lateral view. F. Valve and subgenital plate, lateral view. G. Valve and subgenital plate, ventral view. H. Styles and connective, dorsal view. I. Style, lateral view. J. Aedeagus, lateral view. K. Aedeagus, ventral view. Scale bars: A–C = 1.0 mm; D = 2.0 mm; E–I = 0.5 mm; J–K = 0.4 mm.

Fig. 2. Takiyaella anomala gen. et sp. nov., ♀, paratype (MNRJ). 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.