Takiyaella sexguttata ( Chiamolera & Cavichioli, 2003 ), 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: 53-57

publication ID

https://doi.org/10.5852/ejt.2021.775.1545

publication LSID

lsid:zoobank.org:pub:3084F3F6-F249-4E76-8B79-87DDACDC7934

DOI

http://doi.org/10.5281/zenodo.5579014

persistent identifier

http://treatment.plazi.org/id/03B087EA-791C-FFE4-FED9-FA7A0E7AFD54

treatment provided by

Felipe

scientific name

Takiyaella sexguttata ( Chiamolera & Cavichioli, 2003 )
status

gen. et comb. nov.

Takiyaella sexguttata ( Chiamolera & Cavichioli, 2003)   gen. et comb. nov.

Figs 10–11 View Fig View Fig , 12K–M View Fig , 13 View Fig

Xenocoelidia sexguttata Chiamolera & Cavichioli, 2003: 199   : figs 1–7.

Diagnosis

Male pygofer ( Fig. 10D View Fig ) expanded apically, dorsal margin with small rounded lobe, caudal margin with ventral rounded lobe. Aedeagus ( Fig. 10I–K View Fig ) with atrial processes slender, curved dorsally, not following the curvature of shaft; shaft expanded apically, spatulate, with small lateral spiniform projections; anal tube ( Fig. 10L View Fig ) with basiventral process triangular.

Material examined

Holotype BRAZIL • ♂; Rio de Janeiro, Silva Jardim ; Mar. 1974; F.M. Oliveira leg.; DZUP-082927; DZUP.   Paratypes BRAZIL – Rio de Janeiro • 1 ♂; same collection data as for holotype; DZUP-492337; DZUP   1 ♀; same collection data as for holotype; VIII.1975; DZUP-492336; DZUP   .

Description

MEASUREMENTS (mm). Holotype (♂): total length 6.1. Paratypes (♂): 6.1 (n = 1); (♀) 6.7 (n = 1). COLORATION. Pale yellow ( Fig. 12K–L View Fig ). Forewing ( Fig. 12K–L View Fig ) translucent, with three dark maculae on claval comissure: first, 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. 10D View Fig ), 1.7 × as long as maximum height, expanded apically; dorsal margin concave medially with small preapical rounded lobe; caudal margin truncated with small ventral rounded lobe; ventral tooth slightly rounded; apical portion with inner integument thickening. Subgenital plate, in lateral view ( Fig. 10E View Fig ), subtriangular, 3.6 × as long as maximum height, narrowing at apical fourth; in ventral view ( Fig. 10F View Fig ), subrhomboid, lateral margins converging towards apex; ventral surface with pair of uniseriate rows of 4–5 macrosetae; apex acutely rounded. Connective ( Fig. 10G View Fig ) V-shaped, total length approximately ⅔ length of style; stem short. Style ( Fig. 10G–H View Fig ) with dorsal margin of apodeme rounded; apophysis elongated and robust. Aedeagus ( Fig. 10I–K View Fig ) with pair of atrial processes curved dorsally, with ⅓ length of shaft, anterior to curvature of shaft and not following its curvature broad at base and tapering towards apex; shaft slightly flattened dorsoventrally, apical portion expanded laterally, spatulate, lateral margins with some small spiniform projections. Anal tube ( Fig. 10L View Fig ) with sternite X long and tubular, basal portion with basiventral process triangular, with few denticles.

FEMALE TERMINALIA. Sternite VII ( Fig. 11A View Fig ) slightly wider than long; lateral margins constricted medially; posterior margin slightly emarginated. First valvula of ovipositor ( Fig. 11D View Fig ) with dorsal sculptured area areolate-strigate. Other characters as in generic description.

Remarks

Xenocoelidia sexguttata   was described by Chiamolera & Cavichioli (2003) based on two males and one female from Rio de Janeiro, Brazil. Our study of the X. sexguttata   types ( Figs 10–11 View Fig View Fig , 12K–L View Fig ) indicated the following morphological incongruities with the other species of Xenocoelidia   : (1) male pygofer with caudal margin with small lobe without robust setae ( Fig. 10D View Fig ), whereas in other species of Xenocoelidia   the caudal margin of pygofer is broadly rounded bearing several small and robust setae; (2) subgenital plates fused to each other in the basal two-thirds, with only the apical third being free ( Fig. 10F View Fig ), while in other species the subgenital plates are fused only at base, being free for most of its length; (3) connective with stem short ( Fig. 10G View Fig ), while in other species the connective is Y-shaped, with stem long; (4) style with preapical lobe moderately developed and slightly produced posterad ( Fig. 10H View Fig ), whereas other species of Xenocoelidia   have the preapical lobe strongly developed and expanded laterally; and (5) aedeagus with shaft moderately long, wider at base, bearing atrial processes ( Fig. 10I View Fig ), while in other species of Xenocoelidia   the aedeagus lacks atrial process, and the aedeagal shaft is very long and narrow in almost all its length. Based on these differences, we propose the transfer of X. sexguttata   to Takiyaella   gen nov.

DZUP

Brazil, Parana, Curitiba, Universidade Federal do Parana, Museu de Entomologia Pe. Jesus Santiago Moure

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Genus

Takiyaella

Loc

Takiyaella sexguttata ( Chiamolera & Cavichioli, 2003 )

Gonçalves, Clayton C. & Domahovski, Alexandre C. 2021
2021
Loc

Xenocoelidia sexguttata

Chiamolera L. B. & Cavichioli R. R. 2003: 199
2003