Tichocoelidia marceloi, Gonçalves & Barbosa, 2021

Gonçalves, Clayton Corrêa & Barbosa, Julianna Freires, 2021, Two new Peruvian species of Tichocoelidia Kramer (Hemiptera: Cicadellidae: Neocoelidiinae) with a key to males, Zootaxa 5039 (3), pp. 417-424 : 419

Tichocoelidia marceloi sp. nov.

( Figs 1–10 , 21–22 )

Diagnosis. Crown ( Fig. 21 ) with rounded anterior margin. Pygofer ( Fig. 3 ) with inner dorsal processes ventrally curved in apical third, not exceeding apex of pygofer. Subgenital plates, in lateral view ( Fig. 4 ) with dorsal margin expanded in median third; in ventral view ( Fig. 5 ), with lateral margins converging towards the apex, narrowed in apical third. Aedeagus ( Figs 8–9 ) with shaft asymmetrical and strongly flattened dorsoventrally, gonoduct distinct throughout length of shaft, apex slightly expanded. Anal tube ( Figs 3, 10 ) with short processes, with apices divergent and acute, outer margin with small denticles.

Measurements (mm). Male holotype: total length 7.25.

Coloration. Body yellow ( Figs 21–22 ). Crown yellow, without orange stripes. Face ( Fig. 1 ) without distinct marks. Pronotum ( Fig. 21 ) with two dark maculae adjacent to posterior margin. Forewing ( Fig. 2 ) yellow semi-hyaline; anal margin and apical portion smoky. Legs ( Fig. 22 ) yellow.

External morphology. Crown ( Fig. 24 ) subquadrangular, with rounded anterior margin; coronal maculae distinct near posterior margin. Other characteristics as in description of the genus.

Male terminalia. Pygofer, in lateral view ( Fig. 3 ), subtriangular, high at base and progressively narrowing towards apex, approximately twice as long as high; macrosetae present on apical third; ventral tooth on basal third, apex rounded; inner dorsal processes ventrally curved in apical third, not exceeding apex of pygofer, ventral margin with small irregular and rounded apical teeth. Subgenital plates, in lateral view ( Fig. 4 ) with dorsal margin expanded in median third forming a rounded lobe; in ventral view ( Fig. 5 ), with lateral margins converging towards apex, narrowed in apical third; outer margin with microsetae in apical third. Connective ( Fig. 6 ) approximately two-thirds of length of style. Style ( Figs 6–7 ) with base of apodeme bilobed, both lobes rounded and approximately same size; apophysis moderately curved dorsally; apical hook moderately developed. Aedeagus ( Figs 8–9 ) with shaft asymmetrical and strongly flattened dorsoventrally, slightly twisted; apex slightly expanded, with two small preapical lateral lobes; gonoduct distinct throughout length of the shaft. Anal tube ( Figs 3, 10 ) with short processes, with apices divergent and acute, outer margin with small denticles.

Female terminalia. Female unknown.

Material examined. Holotype male: “ Peru, Cusco, 19 rd Km W Quincemil,\ Rio Araza tributary\ 13°20’10”S 70°50’57”W, 874m \ 23-31.viii.2012, Malaise, RR Cavichioli,\ JA Rafael, AMP Santos & DM Takiya” ( MUSM).

Etymology. The species name is a tribute to Marcelo Peixoto Gomes da Silva, a graduate student who started his studies on Neotropical leafhoppers advised by the first author of this paper.

Remarks. Tichocoelidia marceloi sp. nov. resembles T. clarkei in the color pattern ( Figs 21–22, 25–26 ), shapes of aedeagus and processes of anal tube. However, T. marceloi sp. nov. differs from T. clarkei by the shape of the pygofer. In the new species the ventral tooth arises on the basal third of the ventral margin and the inner processes are thin and curved ventrally ( Fig. 3 ), while in T. clarkei the ventral tooth is on the middle third and the inner processes are robust and strongly curved internally with crossed apices ( Kramer 1962; Figs 10 , 12 ).

Figures

FIGURES 1–10. Tichocoelidia marceloi sp. nov., holotype male: 1, head, frontal view; 2, forewing; 3, pygofer and anal tube, lateral view; 4, valve and subgenital plates, lateral view; 5, valve and subgenital plates, ventral view; 6, connective and styles, dorsal view; 7, style, lateral view; 8, aedeagus, lateral view; 9, aedeagus, caudal view; 10 processes of anal tube, caudal view.

FIGURES 21–28. Habitus, dorsal and lateral views, respectively. 21 and 22, Tichocoelidia marceloi sp. nov., holotype male. 23 and 24, T. vanessae sp. nov., holotype male. 25 and 26, T. clarkei Kramer, 1962, holotype male (USNM). 27 and 28, T. grandis Chiamolera & Cavichioli, 2003, holotype male (INPA).

FIGURES 11–20. Tichocoelidia vanessae sp. nov., holotype male: 11, head, frontal view; 12, forewing; 13, pygofer and anal tube, lateral view; 14, valve and subgenital plates, lateral view; 15, valve and subgenital plates, ventral view; 16, connective and style, dorsal view; 17, style, lateral view; 18, aedeagus, lateral view; 19, aedeagus, caudal view; 20 processes of anal tube, caudal view.