Mitrapsylla pterogynis 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 pterogynis

description: Mitrapsylla pterogynis sp. nov.
(Figs 40, 127, 157, 187, 265 ‾267, 307, 337, 367, 379)
LSID: urn:lsid:zoobank.org:act: 094CDEFE-B2B8-45B5-95CA-5BC6D417DA39
Material examined. Holotype ♁, Brazil: Goiás, Alto Paraíso do Goiás, near São Jorge, Parque Nacional da Cha-pada dos Veadeiros, -14.1610, -47.8300, 880 m, 16.ii.2018, Cerrado vegetation, Pterogyne nitens (D. Burckhardt & D.L. Queiroz), #266(3) (DZUP 215430, dry).
Paratypes. Goiás: 15 ♁, 18 ♀, 21 immatures, 1 skins, same data as holotype (D. Burckhardt & D.L. Queiroz), #266(3) (DZUP, NHMB, dry, slide mounted, 70% ethanol); 10 ♁, 12 ♀, 5 immatures, same but Mirante, -14.1840, -47.8430, 1030 m, 17.ii.2018, Cerrado vegetation, Pterogyne nitens (D. Burckhardt & D.L. Queiroz), #267(1) (NHMB, slide mounted, 70% ethanol).
Diagnosis. Body light yellowish-orange to orange; lacking distinct striped-pattern. Forewing yellow or yellowish-orange; lacking brown median spot in cells apically. Surface spinules densely spaced; fully covering all cells up to veins. Paramere, in lateral view, lamellar; anterior and posterior margins subparallel, almost straight in apical three quarters; apex squarish, with posterior half expanded dorsally, displaced from plane of anterior half. Aedeagus complex tripartite; in lateral view, dorsal lobe with lateral lobule subequal in size with median lobule, elongate, suboval; ventral process relatively straight, with apical expansion subequal in size with dorsal lobe, elongate, oval. Female proctiger, in lateral view, with apex straight to slightly upturned, irregularly rounded. Female subgenital plate, in lateral view, with basal half of ventral outline strongly expanded, apical half almost straight to convex; lacking both group of setae on dorsum subapically and seta-free patch subapically; in ventral view, apex slightly broad, rounded.
Description. Colouration. Head and abdomen lacking distinct striped-pattern, thorax with faint, pale pattern as follows: mesoscutum sometimes with wide longitudinal stripe medially and sublaterally; mesoscutellum and metascutellum with longitudinal stripe along lateral margins; mesoepisternum with semicircular transversal marking dorsally. Body light yellowish-orange to orange; genal process usually lighter than head. Eye grey to dark red; ocelli colourless to orange. Antenna light yellow to light yellowish-orange, segments 1–2 concolorous with head. Clypeus concolorous with body; rostrum light yellow to light yellowish-orange. Forewing yellow or yellowish-orange, sometimes darker around veins; lacking brown median spot in cells apically; veins light yellow to light orange; pterostigma concolorous or slightly lighter than veins. Hindwing colourless. Foreleg, midleg and metafemur dark yellow to yellowish-orange, metatibia and metatarsus light yellow. Abdomen; intersegmental membranes lighter than body; spiracular sclerites concolorous with abdomen. Male terminalia light yellow to light yellowish-orange. Female terminalia light yellow to yellowish-orange, proctiger usually darker apically.
Structure. Body length ♁ 2.0– 2.2 mm (2.08± 0.08 mm), ♀ 2.2–2.4 mm (2.26± 0.09 mm) (5 ♁, 5 ♀). Genal pro-cess (Fig. 157) subconical, irregularly narrowing towards subacute or narrowly rounded apex, 0.5–0.7 times as long as vertex along midline. Antenna 2.2–2.6 times as long as head width; longest terminal seta slightly shorter than segment 10. Apical labium segment 0.1 times longer than head width and 0.5–0.6 times longer than median segment. Forewing (Fig. 187) 2.8–3.1 times as long as head width, 2.3–2.4 times as long as wide, obovoid, broadly rounded apically; vein M+Cu 1 0.4–0.5 times as long as Cu 1; ratio a/b 1.6–2.0; ratio c/d 0.6–0.7; ratio e/f 0.9–1.5. Surface spinules densely spaced, forming rhomboids (Fig. 40); fully covering all cells up to veins but scattered along them (Fig. 43). Metatibia 0.7 times as long as head width.
Terminalia. Male. Proctiger, in lateral view, 0.4 times as long as head width; with long, very narrow, blunt, weakly down-curved lobes basally. Paramere, in lateral view (Figs 265 ‾267) 0.9 times as long as proctiger; lamel-lar; anterior and posterior margins subparallel, almost straight in apical three quarters; apex squarish, with posterior half expanded dorsally, displaced from plane of anterior half; inner surface (Fig. 266) covered with short setae, longer basally, with several thick setae along apical anterior margin, below sclerotised ridge and on apical posterior margin, and several thick short setae on posterior margin; in dorsal view (Fig. 307), with squarish inward and anteriorly directed posterior process. Aedeagus (Fig. 267) complex tripartite; in lateral view, dorsal lobe with slightly prominent median lobule; lateral lobule subequal in size with median lobule, elongate, suboval; membranous pouch rather broad; ventral process relatively straight, with apical expansion subequal in size with dorsal lobe, elongate, oval, bearing long, conical tubercle.—Female (Fig. 337). Proctiger, in lateral view, 0.7–0.8 times as long as head width; dorsal outline weakly concave distal to circumanal ring, apical extension almost straight to sinuous, apex straight to slightly upturned, irregularly rounded; circumanal ring 0.4 times as long as proctiger. Subgenital plate, in lateral view, 0.5–0.6 times as long as proctiger; apex well-developed; basal half of ventral outline strongly expand-ed, apical half almost straight to convex; covered with long setae in subasal two thirds and ventrally throughout, short setae in apical third, without group of setae on dorsum subapically and without seta-free patch subapically; in ventral view (Fig. 367), lateral margins evenly, strongly narrowing at apical thirds towards slightly broad, rounded apex.
Measurements (in mm) (3 ♁, 3 ♀). HW ♁ 0.50–0.51 (0.51±0.01), ♀ 0.55–0.60 (0.57±0.02); AL ♁ 1.20–1.28 (1.23±0.05), ♀ 1.30–1.46 (1.36±0.09); LAB2 ♁ 0.11–0.13 (0.12±0.01), ♀ 0.13–0.14 (0.13±0.01); LAB3 ♁ 0.06– 0.07 (0.07±0.01), ♀ 0.08; FL ♁ 1.42–1.49 (1.46±0.04), ♀ 1.66–1.83 (1.75±0.11); TL ♁ 0.34–0.36 (0.34±0.01), ♀ 0.37–0.40 (0.38±0.02); MP 0.21–0.23 (0.22±0.01); PL 0.19–0.20 (0.19±0.01); DL 0.20–0.22 (0.21±0.01); FP 0.40–0.49 (0.46±0.05).
Etymology. Named after its host-plant genus, Pterogyne.
Distribution. Brazil: Goiás.
Host-plant. Pterogyne nitens Tul. (Leguminosae, Caesalpinioideae, Dalbergieae).
Habitat. Cerrado.
Comments. Mitrapsylla pterogynis sp. nov. resembles M. pterodontis sp. nov. in the female subgenital plate, in lateral view, with ventral outline strongly expanded basally and lacking a group of long setae on dorsum subapically; but differs in the subgenital plate lacking a seta-free patch subapically, the apex of proctiger almost straight in lateral view (rather than upturned), the forewing lacking brown median spot in cells apically, and the surface spinules covering cells up to veins (rather than leaving spinule-free spaces along veins).
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 83-84, DOI: 10.11646/zootaxa.4887.1.1, http://zenodo.org/record/4297565