Fonsecaiulus alvarengai, 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 : 108-109

Fonsecaiulus alvarengai sp. nov.

( Figs 35–42 )

Etymology. This species is named in honor of the late Air Force Officer Moacyr Alvarenga (1915–2010), who was a gifted collector of insects and thus contributed greatly to the development of Brazilian entomology. He was the collector of the type series of this new species.

Total length (mm). Male holotype 5.44; male paratype 5.50.

Color ( Figs 35–37 ). Dorsum brown with three longitudinal pale yellow stripes extending from anterior margin of crown to mesonotum; median stripe narrowed posteriorly from median portion of pronotum, continuing as narrow line along commissural margins; lateral stripes very narrow; veins of clavus and claval sulcus pale yellow. Corium with some longitudinal veins partially pale yellow.

Male terminalia. Pygofer ( Fig. 38 ), in lateral view, moderately produced posteriorly; posterior margin broadly rounded; without processes; macrosetae of distinct sizes distributed mostly on distal half of disk. Valve ( Fig. 39 ), in ventral view, short and broad, subrectangular; anterior margin concave; posterior margin broadly concave. Subgenital plate ( Figs 38, 39 ), in ventral view, subtriangular; outer margin rounded at basal half; plate fused along basal three-fifths to its counterpart; without macrosetae; in dorsal view, with two tiny dentiform processes at apical portion of basal half, not located close to each other, anterior process associated with style apex; in lateral view, plate not extending as far posteriorly as pygofer apex. Connective ( Fig. 40 ), in dorsal view, forming transverse bar, without stalk, slightly curved posteriorly, with dorsal median keel. Style ( Fig. 40 ), in dorsal view, extending farther posteriorly than connective; apophysis with slight, rounded preapical lobe; portion behind lobe strongly narrowed, bearing setae; apex acute. Aedeagus ( Figs 41, 42 ) symmetrical; shaft, in lateral view, tubular, expanded apically, directed dorsally; basiventral area with pair of elongate acute processes, extending farther posteriorly than aedeagal shaft; gonopore located preapically at ventral margin. Paraphyses absent.

Female unknown.

Type material. Holotype: male, “ BRAZIL: \ M. Alvarenga \ B.M. 1971-165.” ( DZUP) . Paratypes: two males, same data as the holotype ( DZUP) .

Remarks. Fonsecaiulus alvarengai sp. nov., which unfortunately is currently known from three males with only “ Brazil ” as locality information, is one of three of our new species that have no paraphyses; the other two are F. takiyae sp. nov. and F. truncatus sp. nov. (see descriptions and remarks below). The absence of paraphyses is a condition that was not mentioned by Young (1977) in the original description of the genus, and the three new species described by Felix et al. (2015) have these structures. In addition to the absence of paraphyses, F. alvarengai can be recognized by the apically expanded aedeagus, which bears at base a pair of elongate acute processes ( Figs 41, 42 ). The outer margin of the subgenital plate is rounded at the basal half ( Fig. 39 ).

Figures

FIGURES 35–42. Fonsecaiulus alvarengai sp. nov., male. 35, body, dorsal view. 36, body, lateral view. 37, face, anterior view. 38, pygofer, valve, and subgenital plate, lateral view. 39, valve and subgenital plates, ventral view. 40, style and connective, dorsal view. 41, aedeagus, lateral view. 42, aedeagus, ventral view.