Deltocoelidia Kramer, 1961

Gonçalves, Clayton Corrêa & Prando, Jádila Santos, 2025, Description of a new species for monotypic genera: Deltocoelidia Kramer, Neocoelindroma Marques-Costa & Cavichioli, and Placoscopana Gonçalves, Marques-Costa & Ale-Rocha (Insecta: Hemiptera: Cicadellidae: Neocoelidiinae), Zootaxa 5660 (1), pp. 53-66 : 54-57

Deltocoelidia Kramer, 1961

( Figs 1A–K ; 2A–J ; 5A–D )

Deltocoelidia Kramer 1961: 238 (description); 1964: 261, 265 (key to genera of Neocoelidiinae , redescription); Oman et al. 1990: 204, 309 (catalog); Freytag & Sharkey 2002: 254 (citation, species number); Dietrich 2003: 701 (distribution); Marques-Costa & Cavichioli 2012: 17 (phylogenetic relationship).

Type-species: Deltocoelidia maldonadoi Kramer, 1961 , by original designation.

Diagnosis. Crown and pronotum ( Figs 1A ; 5A, C ) with a median longitudinal red or orange band. Crown ( Figs 1A ; 5A, C ) flat, moderately produced anteriorly; anterior margin rounded; lateral margins, adjacent to eyes, elevated and not carinated; coronal suture indistinct. Ocellus ( Fig. 1B, C ) on anterior margin of head, not visible in the dorsal view. Frontogenal suture ( Fig. 1B ) not reaching to ocelli. Antennal ledge ( Fig. 1B ) small, vertical, and carinate. Gena ( Fig. 1B ) broad, wider than lorum, completely covers the episternum. Crown-face transition ( Figs 1C ; 5B, D ) rounded, without carina. Pronotum ( Figs 1A ; 5A, C ) with posterior margin roundly excavated. Forewing ( Figs 1D ; 5A, C ) with orange longitudinal strip adjacent to anal margin, brown maculae near anal margin (four to five pairs in D. maldonadoi , two pairs in D. longistyla sp. nov.); three anteapical and four apical cells; venation obscure, except apically. Hind wing with veins R 4+5 and M 1+2 partially fused and separated apically. Male pygofer ( Fig. 1E ) with a small preapical tooth on ventral margin; without macrosetae. Anal tube without process. Subgenital plates ( Fig. 1G ) entirely fused or with apical portion free. Connective ( Fig. 1H ) Y-shaped. Style ( Fig. 1H, I ) elongated, with preapical lobe developed. Aedeagus ( Fig. 1J, K ) with shaft slender, curved dorsally; with or without processes; gonopore apical.

Distribution. Brazil [new record]: Amazonas, Rondônia; Guyana: Essequibo; Peru [new record]: Loreto; Venezuela: Amazonas.

Remarks. According to the phylogenetic analysis of Neocoelidiinae proposed by Marques-Costa & Cavichioli (2012), Deltocoelidia is sister to Paraphysiana Chiamolera, Cavichioli & Anderle, 2003 . Both genera are recorded from the Amazon region and share several morphological characteristics including: crown moderately produced anteriorly, with rounded anterior margin; lateral margins elevated, not carinate; ocelli located on anterior margin of head; frontogenal sutures not reaching ocelli; antennal ledge small; gena broad, completely covering episternum; crown-face transition without carina; pronotum with posterior margin roundly excavated; forewing with paired brown maculae near anal margin; hind wing with veins R 4+5 and M 1+2 partially fused, separated apically; style with developed preapical lobe; and aedeagus with shaft slender, curved dorsally. However, Deltocoelidia is easily differentiated from Paraphysiana by: male pygofer with a tooth on ventral margin, absent in Paraphysiana ; subgenital plate without dorsoapical tooth, present in Paraphysiana ; and aedeagus without paraphysis, present in Paraphysiana .

Species of Deltocoelidia

Deltocoelidia longistyla sp. nov. Brazil (Amazonas, Rondônia); Peru (Loreto).

Deltocoelidia maldonadoi Kramer, 1961: 238 . Guyana ( Essequibo); Venezuela (Amazonas).

Figures

FIGURE 1. Deltocoelidia longistyla sp. nov., male holotype. A head, pronotum, and mesonotum, dorsal view. B, head, frontal view. C, head, pronotum and mesonotum, lateral view. D, forewing. E, pygofer, lateral view. F, valve and subgenital plates, lateral view. G, valve and subgenital plates, ventral view. H, connective and styles, dorsal view. I, style, lateral view. J, aedeagus, lateral view. K, aedeagus, dorsal view. Scale bars: A–C = 1 mm; D = 2 mm; E–K = 0.5 mm.

FIGURE 2. Deltocoelidia longistyla sp. nov., female paratype. A posterior portion of abdomen, ventral view. B, genital capsule, 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, gonoplac, lateral view. J, apex of gonoplac, lateral view. Scale bars: A–E, G, I = 0.5 mm; F, H, J = 0.2 mm.

FIGURE 5. habitus of type specimens, dorsal and lateral view, respectively. A, B, Deltocoelidia longistyla sp. nov. male holotype (UNMSM). C, D, Deltocoelidia longistyla sp. nov. female paratype (UNMSM). E, F, Neocoelindroma albicephala sp. nov. male holotype (MEPN). G, H, Placoscopana birama sp. nov. male holotype (INPA). Scale bars = 2 mm.