Oneilliella wanessae, Lima & Vieira & O’Donnell & Mound, 2023

Lima, Élison Fabrício B., Vieira, Daniel E., O’Donnell, Cheryle A. & Mound, Laurence A., 2023, Systematics and species recognition in Oneilliella Wilson (Thripidae: Panchaetothripinae), Zootaxa 5336 (3), pp. 389-400 : 396-397

Oneilliella wanessae sp. n.

( Figs 24–30 )

Female macroptera. Body mostly brown ( Fig. 24 ), except for area between outer margins of ocellar triangle and compound eyes light brown ( Fig. 28 ), tarsi and apex of mid and hind tibiae yellow, fore femora light brown and fore tibiae light brown with apex yellow. Antennal segment I light brown, II brown with light brown shadings basally and apically, III brown medially, basal half yellow and apex light brown, IV brown medially with basal fourth pale and apical third light brown, V pale, VI brown, VII–VIII light brown to pale ( Fig. 26 ). Fore wing brown, except for sub-basal pale spot, anteriorly to fork of veins. Antennal segment III with short apical neck, about as long as wide, forked sense cone on segment IV reaching base of apical third of segment V. Fore wing setae slender, first vein with three distal setae, second vein with 9–11 regularly spaced setae, fork of veins with robust microtrichia, clavus with three setae in addition to a marginal seta ( Fig. 27 ). Reticles on pronotum and metanotum without internal markings ( Fig. 28 ). Abdominal tergite II 3.3 times wider than long and almost completely covered by polygonal reticulations, except medially submedially on posterior margin and laterally on anterior angles, tergites III–VIII without sculpture medially and with well-defined reticles submedially and oblique striae laterally ( Fig. 29 ); X without longitudinal split.

Measurements (Female holotype in microns). Body length 1750. Head, length 120; width 155. Pronotum, length 95; width 185; Fore wing length 920, veinal setae 37,5. Antennal segments I–VIII length 25, 40, 58, 50, 38, 33, 15, 33.

Male macroptera. Similar to female, but smaller ( Fig. 25 ). Median thirds of abdominal sternites V–VII with concave transverse pore plates ( Fig. 30 ).

Measurements (Male paratype in microns). Body length 1400. Head, length 110; width 170. Pronotum, length 118; width 190; Fore wing length 770, veinal setae 35. Antennal segments I–VIII length 20, 38, 50, 48, 28, 25, 13, 25.

Material studied. Holotype female. Brazil. Santa Catarina: Descanso, on Chusquea sp. [ Poaceae : Bambusae], 19.vii.2019 (E.F.B.Lima col.) ( CHNUFPI).

Paratypes: 9 females collected with holotype (E.F.B.Lima col.); Ceará: Ubajara, Parque Nacional de Ubajara, 13.xii.2022 (E.F.B.Lima col.) ( CHNUFPI); Santa Catarina: Nova Teutônia [Seara], on litter, 1 female, vii.1957 (F. Plaumann); Santa Catarina: Nova Teutônia [Seara], on “capoeira”, i.e. second growth, 3 females, 18–20.x.1949 ( USNM) .

Additional specimens. Brazil. S„o Paulo: Salesópolis, Boraceia , sweeping, 1 male, 1.iv.2001 (S.T.P. Amarante); Rio de Janeiro: Nova Iguaçu, Reserva Tinguá, 1 female and 2 males, 9–12.iii.2001 (S.T.P. Amarante); Espírito Santo: Santa Teresa, Estaç„o Santa Lúcia, 9–12.iv.2001 (Azevedo col.) ( MZSP) .

Comments. This is the Oneilliella species with most specimens currently known. Most of these were collected from a bamboo in southern Brazil, but larvae were not found. Based on the records, wanessae is widely distributed in southern and southeastern Brazil, and the species should be expected in countries such as Paraguay, Uruguay and Argentina. This is one of the three species with completely pale antennal segment V, but is the only among these with a short neck on antennal segment III. It shares with funebris and tica the slender setae on fore wing and the short apical neck on antennal segment III. One specimen from Ceará state has nine setae on fore wing second vein, but this is here considered to be an intraspecific variation. The species is named after Dr. Wanessa Scopel, who gently helped during fieldwork in Santa Catarina state.

Figures

FIGURES 24–30. Oneilliella wanessae sp. n. (24) female; (25) male; (26) antenna; (27) fore wing; (28) head and thorax; (29) abdominal tergites II–VII; (30) male abdominal sternites V–VII.