Fonsecaiulus spinosus, Felix & Mejdalani & Domahovski & Cavichioli, 2022

Felix, Márcio, Mejdalani, Gabriel, Domahovski, Alexandre C. & Cavichioli, Rodney R., 2022, Eight new Brazilian species of Fonsecaiulus (Hemiptera: Cicadellidae: Cicadellini) new records of species, and key to males of the genus, Zootaxa 5195 (2), pp. 101-124 : 104-105

Fonsecaiulus spinosus sp. nov.

( Figs 9–26 )

Etymology. The specific epithet, spinosus , refers to the dorsal row of spines and crown of apical spines on the aedeagal shaft ( Figs 15, 16 ).

Total length (mm). Male holotype 5.75; male paratype 5.81; female paratype 6.13.

Color ( Figs 9–11 ). Dorsum brown with three longitudinal yellow stripes extending from anterior margin of crown to apex of clavus; median stripe narrowed posteriorly from median portion of pronotum, continuing as narrow line along commissural margins; lateral stripes strongly narrowed on median portion of clavus. Corium with irregular yellow stripe extending from anterior portion of brachial cell to inner anteapical cell, strongly narrowed along anterior third; very narrow yellow stripe extending longitudinally near costal margin, posteriorly connected to yellow macula on median and outer anteapical cells.

Male terminalia. Pygofer ( Fig. 12 ), in lateral view, moderately produced posteriorly; posterior margin subtriangular; without processes; macrosetae of distinct sizes on posterior portion and extending anteriorly over ventral portion. Valve ( Fig. 13 ), in ventral view, short and broad, with distinct median constriction. Subgenital plate ( Figs 12, 13 ), in ventral view, broad at basal third and narrow at apical two-thirds, these areas separated by slight constriction; plate fused at base to its counterpart; without macrosetae; in dorsal view, with three tiny dentiform processes at apical portion of basal third, located close to one another, anterior process associated with style apex; in lateral view, plate not extending as far posteriorly as pygofer apex. Connective ( Fig. 14 ), in dorsal view, short and broad, with posterior margin deeply notched, without stalk. Style ( Fig. 14 ), in dorsal view, elongate, extending much farther posteriorly than connective; apophysis with preapical, slight angulate lobe; portion behind lobe strongly narrowed, bearing setae; apex subtruncate. Aedeagus ( Figs 15, 16 ) symmetrical; shaft, in lateral view, curved dorsally and very tall; dorsal margin with row of spines that are larger toward apex (last spine much larger than previous ones and with apex curved anteriorly); apex broad; in ventral view, shaft flattened and with crown of apical spines; gonopore located ventroapically. Paraphyses ( Figs 15, 16 ) with membranous base; in lateral view, rami robust, directed dorsally, and with obtuse apex.

Female terminalia. Sternite VII ( Figs 17–19 ), in ventral view, subtriangularly produced posterolaterally; posterior margin with moderately produced median lobe. “Internal” sternite VIII without distinct sclerites. Pygofer ( Figs 17, 18 ), in lateral view, moderately produced posteriorly; apex narrowly rounded; surface with row of sparse macrosetae along ventroapical margin and a few grouped near apex. First valvifer ( Figs 20, 21 ), in lateral view, somewhat elliptical; anterior portion with rigidly attached, sclerotized bifurcated structure associated with first valvula (indicated by an arrow in Fig. 20 and magnified in Fig. 21 ); surface of this structure distinctly covered by denticuli. First valvula ( Figs 20, 22 ), in lateral view, with basal portion enlarged and subrectangular; basal margin truncate and oblique in ventral view; dorsal sculptured area extending from basal portion to apex of blade, formed mostly by scalelike processes arranged in oblique lines, except basally with more linear processes; ventral sculptured area restricted to apical portion of blade, formed by scalelike processes; blade apex acute. Second valvula ( Figs 23–25 ), in lateral view, broadened beyond basal curvature, narrowing slightly toward narrowly rounded apex; ventral margin approximately rectilinear; preapical prominence distinct, obtuse; dorsal margin with approximately 20 mostly triangular continuous teeth, extending from expanded basal portion to apical portion of blade; most teeth with steep, short ascending portion, and gradually declivous, long descending portion; denticles distributed on teeth and on apical portion of blade, except on apex; ventral dentate apical portion distinctly longer than dorsal portion; blade with ducts attaining teeth or terminating below them, also extending to apex. Gonoplac ( Fig. 26 ) of the usual Cicadellinae type: in lateral view, with basal half distinctly narrow, abruptly expanded on median portion; ventral margin slightly concave on median third; apex narrowly rounded.

Type material. Holotype: male, “ Brasil, Minas Gerais, \ São Roque P. N. [Parque Nacional] Serra \ da Canastra \ 14–19.xii.2013 Malaise \ Melo & Rosa legs.” ( DZUP) . Paratypes: two males and one female, same data as the holotype ( DZUP) .

Remarks. Fonsecaiulus spinosus sp. nov. has a quite peculiar aedeagus ( Fig. 15 ), which will readily distinguish it from the other known species of the genus. The aedeagal shaft, in lateral view, has a row of dorsal spines that become larger toward the apex, the last spine being much larger than the previous ones ( Fig. 15 ). The paraphyses rami are robust and obtuse apically ( Fig. 15 ). In the female terminalia, a peculiar bifurcate structure was observed in association with the first valvifer and valvula ( Figs 20, 21 ). This kind of structure was also observed in F. unciformis sp. nov. ( Figs 54, 55 ).

Figures

FIGURES 9–16. Fonsecaiulus spinosus sp. nov., male. 9, body, dorsal view. 10, body, lateral view. 11, face, anterior view. 12, pygofer, valve, and subgenital plate, lateral view. 13, valve and subgenital plates, ventral view. 14, style and connective, dorsal view. 15, aedeagus and paraphyses, lateral view. 16, aedeagus and paraphyses, ventral view.

FIGURES 17–26. Fonsecaiulus spinosus sp. nov., female. 17, distal portion of abdomen, ventral view. 18, distal portion of abdomen, lateral view. 19, sternite VII, ventral view. 20, first valvifer and first valvula, lateral view (arrow indicates bifurcated structure associated with first valvula). 21, bifurcated structure at higher magnification. 22, apical portion of first valvula at higher magnification. 23, second valvula, lateral view. 24, teeth at median portion at higher magnification. 25, apical portion at higher magnification. 26, second valvifer and gonoplac, lateral view.

FIGURES 51–60. Fonsecaiulus unciformis sp. nov., female. 51, distal portion of abdomen, ventral view. 52, distal portion of abdomen, lateral view. 53, sternite VII, ventral view. 54, first valvifer and first valvula, lateral view (arrow indicates bifurcated structure associated with first valvula). 55, bifurcated structure at higher magnification. 56, apical portion of first valvula at higher magnification. 57, second valvula, lateral view. 58, teeth at median portion at higher magnification. 59, apical portion at higher magnification. 60, second valvifer and gonoplac, lateral view.