Takiyaella coelhomarquesae, 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 : 45-48

Takiyaella coelhomarquesae gen. et sp. nov.

urn:lsid:zoobank.org:act:327A360B-940E-48B3-A681-37423842E88E

Figs 5– 6 , 12E–F , 13

Diagnosis

Male pygofer ( Fig. 5E ) expanded apically, with apical lobe. Aedeagus ( Fig. 5J–K ) with two pairs of slender atrial processes anterior to shaft curvature, one pair curved dorsally, and the second directed ventrally; shaft with apical portion expanded laterally forming a small process on each side; anal tube ( Fig. 5L ) with basiventral process truncated with few denticles.

Etymology

The specific epithet is a tribute to Prof. Dr Ana Paula Coelho-Marques in recognition of her remarkable contribution to our knowledge of the Brazilian Auchenorrhyncha , mainly in the study of neocoelidiines.

Material examined

Holotype BRAZIL • ♂; Rio de Janeiro, Nova Friburgo, Macaé de Cima ; alt. 1250 m; Nov.–Dec. 2009; [P.C.] Grossi leg.; DZUP-083605 ; DZUP.

Paratypes BRAZIL – Rio de Janeiro • 1 ♂, 2 ♀♀; same collection data as for holotype; DZUP-083606 ; DZUP • 1 ♂, same collection data as for holotype; DZRJ-AUCH #242; DZRJ • 1 ♀; same collection data as for holotype; DZRJ-AUCH #243; DZRJ .

Description

MEASUREMENTS (mm). Holotype (♂): total length 6.3. Paratypes (♂): 6.2–6.5 (n = 2); (♀) 6.9–7.1 (n = 3).

COLORATION. Pale yellow ( Fig. 12E–F ). Forewing ( Fig. 5D ) 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.

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

MALE TERMINALIA. Pygofer, in lateral view ( Fig. 5E ), 1.7 × as long as maximum height, expanded apically, apical portion higher than basal portion; dorsal margin slightly concave medially; ventral tooth slightly rounded; caudal margin truncated with small ventral rounded lobe; few small setae scattered near ventral margin and apical half; apical portion with inner integument thickening. Subgenital plate, in lateral view ( Fig. 5F ), subtriangular, 3.3 × as long as maximum height; in ventral view ( Fig. 5G ), subovoid, lateral margins converging towards apex; ventral surface with pair of uniseriate rows of 5–6 macrosetae; apex acutely rounded. Connective ( Fig. 5H ) V-shaped, total length approximately ⅔ length of style; stem very short. Style ( Fig. 5H–I ) with dorsal margin of apodeme broadly rounded; apophysis elongated and robust. Aedeagus ( Fig. 5J–K ) with two pairs of slender atrial processes with acute apexes: first more dorsal in comparison to second, longer, approximately ⅓ ength of shaft, curved dorsally, anterior to shaft curvature; second pair, shorter, approximately ⅓ length of first, directed ventrally; shaft tubular, slightly flattened dorsoventrally at apex, ventral surface with longitudinal row of denticles on each side, extending from base to apex, apical portion expanded laterally forming small process on each side. Anal tube ( Fig. 5E, L ) with sternite X long and tubular, with basiventral process truncated, with few denticles. FEMALE TERMINALIA. Sternite VII ( Fig. 6A–C ) as long as wide; lateral margins constricted medially. First valvula of ovipositor ( Fig. 6F ) with dorsal sculptured area baculiform. Other characters as in generic description.

Remarks

Takiyaella coelhomarquesae gen. et sp. nov. is most similar to T. daniela gen. et sp. nov. by the shape of apex of aedeagus expanded laterally forming a small process on each side ( Figs 5K , 7K ). However, T. coelhomarquesae gen. et sp. nov. differs by the dorsal margin of the male pygofer without distinct lobe ( Fig. 5E ); aedeagus with two pairs of atrial processes ( Fig. 5J ) and anal tube with basiventral process ( Fig. 5L ). While T. daniela gen. et sp. nov. have the dorsal margin of the male pygofer with distinct lobe ( Fig. 7E ); aedeagus with a pair of bifid atrial processes ( Fig. 7J ) and anal tube without basiventral process ( Fig. 7E ).

Figures

Fig. 5. Takiyaella coelhomarquesae gen. et sp. nov., ♂, holotype (DZUP-083605). 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, caudal view. L. Anal tube, lateral view. Scale bars: A–C = 1.0 mm; D = 2.0 mm; E–J, L = 0.5 mm; K = 0.4 mm.

Fig. 6. Takiyaella coelhomarquesae gen. et sp. nov., ♀, paratype (DZUP-083606). 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. 7. Takiyaella daniela gen. et sp. nov., ♂, holotype (DZRJ-AUCH #244). 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, caudal view. Scale bars: A–C = 1.0 mm; D = 2.0 mm; E–I = 0.5 mm; J–K = 0.4 mm.