Fonsecaiulus chelatus sp. nov.

(Figs 61–78)

Etymology. The specific epithet, chelatus, refers to the shape of the apical portion of the paraphyses rami in lateral view (Fig. 67).

Total length (mm). Male holotype 5.50; male paratypes 5.50–5.95 (n = 3); female paratypes 5.56–6.06 (n = 3).

Color (Figs 61–63). Dorsum dark brown with three longitudinal yellow stripes; median stripe extending from anterior margin of crown to transverse sulcus of mesonotum, narrowed posteriorly from anterior margin of pronotum; lateral stripes extending from anterior margin of crown to about two-thirds of clavus. Corium with longitudinal yellow stripe parallel to claval sulcus, extending from apical portion of lateral stripe to inner anteapical cell; yellow spot on outer anteapical cell.

Male terminalia. Pygofer (Fig. 64), in lateral view, moderately produced posteriorly; posterior margin narrowly rounded; posteroventral margin forming pair of small, inner dentiform processes; macrosetae of distinct sizes distributed mostly on posterior portion and extending anteriorly over ventral portion. Valve (Fig. 65), in ventral view, short and broad, subrectangular; anterior margin slightly concave. Subgenital plate (Figs 64, 65), in ventral view, broad at basal third and narrow at apical two-thirds, outer margin rounded at basal third; plate fused at base to its counterpart; without macrosetae; in dorsal view, with two tiny dentiform processes at apical portion of basal third, not located close to each other, anterior process associated with style lobe and posterior process associated with style apex; in lateral view, plate elongate, extending posteriorly for about three-fourths of pygofer length. Connective (Fig. 66), in dorsal view, subquadrate, stalk small and broad, with slight median keel. Style (Fig. 66), in dorsal view, short but extending farther posteriorly than connective; apophysis with inconspicuous preapical lobe; portion behind lobe strongly narrowed, bearing setae; apex truncate. Aedeagus (Figs 67–68) symmetrical; shaft, in lateral view, elongate, curved posterodorsally, base tall, apical third tapered; gonopore located ventrally at apical third. Paraphyses (Figs 67–68), in lateral view, with distinct stalk; rami tall, elongate, attaining median portion of aedeagus, their distal portion with two acute processes, one directed dorsally and another posteriorly; in ventral view, rami divergent at apical half.

Female terminalia. Sternite VII (Figs 69–71), in ventral view, with posterior margin simple, distinctly emarginate in unmacerated specimens and more broadly rounded in macerated ones. “Internal” sternite VIII, in dorsal view, with sclerotized areas, including conspicuous semilunar sclerite (indicated by an arrow in Fig. 73). First valvifer (Fig. 72), in lateral view, somewhat elliptical. First valvula (Figs 72, 74), second valvula (Figs 75–77), and gonoplac (Fig. 78) much as described for F. spinosus sp. nov. Second valvula with about 25 teeth.

Type material. Holotype: male, “ Brasil, PR [Paraná], Antonina, \ R.P.P.N. [Reserva Particular do Patrimônio Natural] Guaricica, \ 25.316°S 48.696°W \ 15–19.IV.2019, Sweep \ Entomologia—UFPR” (DZUP) . Paratypes: three males and four females, same data as the holotype (DZUP); one male and two females, same data as the holotype, except “luz solo” (MZSP); three males and three females, “ Brasil, PR, Antonina, \ RPPN— Guaricica, 50m \ 25.316°S 48.696°W \ 23–27.X.2017 Malaise \ A. Domahovski, G. Melo, \ A. Pinto & M. Savaris ” (one couple in DZRJ, CEIOC, and MNRJ) ; one female: “ Brasil, Paraná, Antonina \ Res. [Reserva] Nat. [Natural] Guaricica, 50m, \ 25.316°S 48.696°W \ 05–09.XI.2018 sweep \ Entomologia UFPR” (DZUP); three males, “MORRETES— PR \ Iapar [Instituto Ambiental do Paraná] \ 23-XI-1984 \ CIIF [Centro de Identificação de Insetos Fitófagos] (LUMINOSA)” (DZUP); one male, same data as preceding except “ 7 a 8-XII-1985 ” (DZUP); one female, same data as preceding except “26-XI a 3-XII-84” and “(MALAISE)” (DZUP); one female, “MORRETES— PR \ 18-II-1985 \ CIIF—LUMINOSA” (DZUP) .

Remarks. In F. chelatus sp. nov. the rami of the paraphyses bear apically two acute processes, which give each ramus a pincer-like appearance (Fig. 67). The distal two-thirds of the subgenital plates are narrowed (Fig. 65). The “internal” female sternite VIII in this species bears a characteristic semilunar sclerite (Fig. 73).