Oneilliella chicoi, 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 : 391-393

Oneilliella chicoi sp. n.

( Figs 1–6 )

Female macroptera. Body mostly brown ( Fig. 1 ), except for area between outer margins of ocellar triangle and compound eyes light brown ( Fig. 3 ), 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, III brown medially with pale basal and apical neck, IV brown medially with basal third pale and apical third light brown, V pale, VI brown, VII–VIII light brown ( Fig. 2 ). Fore wing brown, except for pale spot sub-basally, anteriorly to fork of veins. Antennal segment III with long apical neck, 2.0 times longer than wide, sense cone on segment IV reaching mid-point of segment VI. Fore wing setae robust, first vein with two distal setae, second vein with 8 or 9 regularly spaced setae, fork of veins with robust microtrichia, clavus with three setae in addition to a marginal seta ( Fig. 4 ). Reticles on pronotum and metanotum without internal markings ( Figs 3, 5 ). Abdominal tergite II 3.6 times wider than long and almost entirely covered by polygonal reticulations, except medially on posterior margin and laterally on anterior angles, tergites III–VIII without sculpture medially, with ill-defined reticles submedially and with oblique striae laterally ( Fig. 6 ), X without longitudinal split.

Measurements (Female holotype in microns): Body length 1050. Head length 123; width 178. Pronotum length 102; width 205. Forewing length 830, setae length 50. Abdominal tergite II medial length 73, width 263. Length of antennal segments I–VIII 25, 47, 80, 68, 42, 35, 12, 27, apical neck on segment III length 25, width 8.

Male. Unknown.

Material studied. Holotype female. Brazil. Acre: Rio Branco, Universidade Federal do Acre, dead twigs, 25.vii.2019 (E.F.B.Lima) ( CHNUFPI).

Paratype. Brazil. Acre: Bujari, Floresta Estadual Antimary , one female in Malaise trap, 22.ix–6.x.2016 (E.F. Morato and J.A. Rafael) ( INPA) .

Comments. This species is similar to the type species of the genus, O. williamsi , but can be distinguished by the characters in the key. Unfortunately, specimens were collected either from dead twigs or from Malaise traps, so that no biological information is available. It is named after Chico Mendes, who fought for land reform that would enable the extractivists and rubber tappers to generate income without the devastation of the Amazon forest and was murdered because of his ideals. Type specimens were collected in the state of Acre, northern Brazil, where Chico Mendes was born. The Chico Mendes Brazilian Institute for Biodiversity Conservation is also named after him.

Figures

FIGURES 1–6. Oneilliella chicoi sp. n. (1) holotype female; (2) antenna; (3) head and pronotum; (4) fore wing; (5) meso- and metanotum and abdominal tergite I; (6) abdominal tergites II–VIII.