Mitrapsylla aurantia Rendón-Mera & Burckhardt & Cavichioli & Queiroz 2020, sp. nov.
Creators: name: Rendón-Mera, Diana Isabel
name: Burckhardt, Daniel
name: Cavichioli, Rodney R.
name: Queiroz, Dalva L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Psyllidae
Mitrapsylla
Mitrapsylla aurantia

description: Mitrapsylla aurantia sp. nov.
(Figs 41, 106, 136, 166, 202 ‾204, 286, 316, 346, 373)
LSID: urn:lsid:zoobank.org:act: 47A8E733-3065-4C7F-8853-B2B723E4963E
Material examined. Holotype ♁, Brazil: Roraima, Boa Vista, 28 km E Boa Vista, Campo Esperimental Água Boa, 2.6717, -60.8400, 80 m, 2.iv.2015, degraded Cerrado vegetation, Fabaceae (D. Burckhardt & D.L. Queiroz), #154(2) (DZUP 215397, dry).
Paratypes. Roraima: 17 ♁, 23 ♀, same data as holotype (D. Burckhardt & D.L. Queiroz), #154(2) (DZUP, NHMB, dry, slide mounted, 70% ethanol).
Diagnosis. Surface spinules usually densely spaced, forming irregular groups somewhat separated from each other, seldom moderately spaced; fully covering all cells, leaving spinule-free spaces along veins. Paramere, in lateral view, clavate, weakly expanded apically; anterior margin strongly sinuous; apex squarish, strongly directed posteriorly; sclerotised ridge medially, prominent in dorsal view. Aedeagus complex unipartite; in lateral view, ventral process with apical expansion larger than dorsal lobe.
Description. Colouration. Body overall pale with faint striped-pattern; variation: mesopraescutum with lateral stripes fused to lateral spots on posterior margin; mesoscutum with median and submedian stripes sometimes fused; mesoscutellum with stripe along lateral margins sometimes expanded and covering most of sclerite. Head and thorax light, pale yellow to light orange; genal process slightly to conspicuously lighter than head. Eye grey to red; ocelli colourless to orange. Antenna light yellow, segments 1–2 concolorous with head. Clypeus concolorous or slightly darker than head, slightly lighter medially and slightly darker along edges; rostrum light yellow to yellow. Thorax seldom with margins of sclerites darker. Pronotum usually slightly lighter than rest of thorax. Mesopraescutum rarely with posterior half irregularly coloured. Metascutellum almost entirely white. Forewing colourless to slightly yellowish, sometimes slightly darker around Cu 1b; veins light yellow to light brown; pterostigma concolorous or slightly lighter than veins. Hindwing colourless. Legs pale yellow with tarsi sometimes darker, hindleg light yellow. Abdomen lighter to concolorous with rest of body; intersegmental membranes light straw-coloured; spiracular sclerites concolorous with tergites. Male terminalia light to pale yellow. Female terminalia light to pale yellow, proctiger usually darker than subgenital plate and dark yellow apically.
Structure. Body length ♁ 1.9–2.2 mm (2.06± 0.12 mm), ♀ 2.1–2.4 mm (2.24± 0.10 mm) (5 ♁, 5 ♀). Genal proc-ess (Fig. 136) subconical, irregularly narrowing towards acute apex, 0.4–0.5 times as long as vertex along midline. Antenna 1.9–2.1 times as long as head width; longest terminal seta about half of segment 10. Apical labium segment 0.2 times longer than head width and 0.6–0.8 times longer than median segment. Forewing (Fig. 166) 2.7–2.9 times as long as head width, 2.1–2.2 times as long as wide, obovoid or oval, narrowly or slightly broadly rounded apically; vein M+Cu 1 0.3–0.5 times as long as Cu 1; ratio a/b 1.4–1.6; ratio c/d 0.8–0.9; ratio e/f 0.5–0.8. Surface spinules usually densely spaced forming irregular groups somewhat separated from each other (Fig. 41), seldom moderately spaced (Fig. 39); fully covering all cells; leaving spinule-free spaces along veins (Fig. 42), seldom covering cells up to veins apically (Fig. 43). Radular spinules sometimes present in r 2 but inconspicuous. Metatibia 0.6–0.7 times as long as head width.
Terminalia. Male. Proctiger, in lateral view, 0.4 times as long as head width; with long, weakly tapered, weakly to strongly down-curved posterior lobe. Paramere, in lateral view (Figs 202 ‾204) 0.8–0.9 times as long as proc-tiger; clavate, weakly expanded apically; anterior margin strongly sinuous, broadly rounded in apical third; posterior margin angulate and expanded in apical third, weakly convex in basal two thirds; apex squarish, strongly directed posteriorly, with sclerotised ridge medially (Fig. 203); inner surface (Fig. 203) covered with short setae, longer along apical posterior margin, with row of thick setae along apical anterior margin, several thick setae below sclerotised ridge, and group of stout setae on apical posterior margin; in dorsal view (Fig. 286), sclerotised ridge prominent, bearing posterior tooth. Aedeagus (Fig. 204) complex unipartite; in lateral view, dorsal lobe obovoid; ventral process weakly upturned, with apical expansion larger than dorsal lobe, irregularly globular, bearing short, conical tubercle.—Female (Fig. 316). Proctiger, in lateral view, 1.0 times as long as head width; dorsal outline weakly to moderately concave distal to circumanal ring, apical extension almost straight to sinuous, apex moderately to strongly upturned, smoothly to strongly obliquely truncate; circumanal ring 0.3 times as long as proctiger. Subgenital plate, in lateral view, 0.6 times as long as proctiger; apex well-developed; ventral outline slightly sinuous to slightly convex, sometimes slightly notched submedially; covered with medium long setae in median third and ventrally throughout, short setae in apical third, very sparsely spaced, several longer setae at apex, and long setae submedially, with seta-free patch subapically; in ventral view (Fig. 346), lateral margins abruptly narrowing at half, with apical half weakly narrowing towards slightly broad, subtruncate apex.
Measurements (in mm) (3 ♁, 3 ♀). HW ♁ 0.54–0.57 (0.56±0.02), ♀ 0.54–0.60 (0.58±0.03); AL ♁ 1.08–1.20 (1.15±0.06), ♀ 1.01–1.16 (1.11±0.08); LAB2 ♁ 0.14, ♀ 0.14–0.15 (0.14±0.01); LAB3 ♁ 0.09–0.10 (0.10±0.01), ♀ 0.10–0.11 (0.11±0.01); FL ♁ 1.43–1.55 (1.5±0.07), ♀ 1.58–1.72 (1.63±0.08); TL ♁ 0.37–0.39 (0.38±0.01), ♀ 0.36–0.39 (0.37±0.02); MP 0.24–0.25 (0.24±0.01); PL 0.20; DL 0.22–0.26 (0.24±0.02); FP 0.56–0.60 (0.58±0.02).
Etymology. From Latin aurantius = orange-coloured, tawny, for its orange body colour.
Distribution. Brazil: Roraima.
Host-plant. Unknown.
Habitat. Cerrado.
Comments. Mitrapsylla aurantia sp. nov. resembles light specimens of M. aeschynomenis sp. nov., M. cubana Crawford and M. didyma sp. nov., but differs in the surface spinules densely spaced, seldom moderately spaced, fully covering all cells, and the paramere with apex squarish (rather than irregularly rounded or subtruncate) and strongly directed posteriorly. See comments under M. aeschynomenis sp. nov.
description: Published as part of Rendón-Mera, Diana Isabel, Burckhardt, Daniel, Cavichioli, Rodney R. & Queiroz, Dalva L., 2020, Taxonomy and host-plant relationships of the psyllid genus Mitrapsylla (Hemiptera: Psylloidea: Psyllidae) in Brazil, pp. 1-100 in Zootaxa 4887 (1) on pages 23-24, DOI: 10.11646/zootaxa.4887.1.1, http://zenodo.org/record/4297565