Mitrapsylla itacoatiara, Rendón-Mera & Burckhardt & Cavichioli & Queiroz, 2020

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, Zootaxa 4887 (1), pp. 1-100: 70-71

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Mitrapsylla itacoatiara

sp. nov.

Mitrapsylla itacoatiara   sp. nov.

( Figs 119 View FIGURES 113–122 , 149 View FIGURES 148–162 , 179 View FIGURES 173–182 , 241 View FIGURES 238–246 ‾243, 299, 329, 359, 377)


Material examined. Holotype ♁, Brazil: Amazonas , AM, Itacoatiara, Madereira MIL, -2.7528, -58.6531, 29– 30.xi.2005, mobile light trap (J.A. Rafael, R. J.P Machado & A. Silva Filho) ( INPA, dry). GoogleMaps  

Paratypes. Amazonas: 40 ♁, 50 ♀, AM, Itacoatiara, Madereira MIL, 29–30.xi.2005 (J.A. Rafael, R.J.P Mach-ado & A. Silva Filho) ( INPA, NHMB, dry, slide mounted)   .

Diagnosis. Paramere, in lateral view, capitate; anterior and posterior margins almost straight or weakly concave before apex; apex obliquely truncate; sclerotised ridge along apex. Aedeagus simple; in lateral view, aedeagal head longer than stem, strongly expanded, oval, bearing long stout dorsal tubercle subapically.

Description. Colouration. Body with white striped-pattern; variation: vertex with stripe along lateral margins weak when present; mesoscutum without stripe submedially, seldom with a submedian marking; older specimens with markings with dark outline. Head and thorax orange. Gena lighter ventrally; genal process light yellow to yellow. Eye grey to red; ocelli colourless to orange. Antenna light yellow, segments 1–2 sometimes darker. Clypeus light yellow to yellow, sometimes dark along edges; rostrum light yellow to yellow. Pronotum sometimes slightly lighter than rest of thorax. Forewing colourless; veins light yellow to light brown; pterostigma concolorous or slightly lighter than veins. Hindwing colourless. Legs yellow, sometimes with tarsi slightly darker and metatibia usually lighter. Abdomen orange, light yellow to yellow ventrally; spiracular sclerites concolorous with tergites. Male proctiger yellow to orange, paramere and subgenital plate yellow. Female proctiger dark yellow, usually darker apically and around anus, subgenital plate light yellow to yellow.

Structure. Body length ♁ 1.9–2.1 mm (2.0± 0.05 mm), ♀ 2.1–2.4 mm (2.3± 0.12 mm) (5 ♁, 5 ♀). Genal process ( Fig. 149 View FIGURES 148–162 ) expanded or subconical, evenly or irregularly narrowing towards subacute or narrowly rounded apex, 0.5 times as long as vertex along midline. Antenna 2.7–3.0 times as long as head width; longest terminal seta about as long as segment 10. Apical labium segment 0.1–0.2 times longer than head width and 0.6–0.7 times longer than median segment. Forewing ( Fig. 179 View FIGURES 173–182 ) 2.7–2.9 times as long as head width, 2.3–2.5 times as long as wide, obovoid, narrowly or broadly rounded apically; vein M+Cu 1 0.3–0.4 times as long as Cu 1; ratio a/b 1.6–1.8; ratio c/d 0.6–0.7; ratio e/f 0.7–1.1. Surface spinules moderately spaced, forming rhomboids ( Fig. 39 View FIGURES 38–43 ); covering apical half of cells r 1 and r 2, around radular areas of cells m 1, m 2 and cu 1 (sometimes much reduced), m 2 basally, and most of cell cu 2; leaving spinule-free spaces along veins ( Fig. 42 View FIGURES 38–43 ). 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, weakly tapered, weakly down-curved posterior lobe. Paramere, in lateral view ( Figs 241 View FIGURES 238–246 ‾243) 1.0 times as long as proctiger; capitate; ante-rior margin rounded and strongly expanded dorsally and anteriorly in apical third, almost straight or weakly concave in basal two thirds; posterior margin expanded in apical quarter, almost straight to weakly concave in median two quarters; apex obliquely truncate, with sclerotised ridge along apex ( Fig. 242 View FIGURES 238–246 ); inner surface ( Fig. 242 View FIGURES 238–246 ) covered with short setae, longer basally and along 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. 299 View FIGURES 283–312 ), sclerotised ridge rather straight, bearing posterior tooth. Aedeagus ( Fig. 243 View FIGURES 238–246 ) simple; in lateral view, aedeagal head longer than stem, strongly expanded, oval, bearing long stout dorsal tubercle subapically.—Female ( Fig. 329 View FIGURES 325–330 ). Proctiger, in lateral view, 1.2 times as long as head width; dorsal outline weakly to moderately concave distal to circumanal ring, apical extension sinuous, apex moderately to strongly upturned, strongly obliquely truncate; circumanal ring 0.3 times as long as proctiger. Subgenital plate, in lateral view, 0.5 times as long as proctiger; apex well-developed; ventral outline slightly convex medially, slightly indented subapically and apical third sinuous to slightly convex; covered with long setae, intercalated with short setae in apical third, longer setae at apex and group of long setae on dorsum subapically, without seta-free patch subapically; in ventral view ( Fig. 359 View FIGURES 343–362 ), lateral margins evenly, strongly narrowing at about half towards slightly broad, rounded apex.

Measurements (in mm) (2 ♁, 2 ♀). HW ♁ 0.55–0.57 (0.56±0.02), ♀ 0.58–0.62 (0.60±0.03); AL ♁ 1.51–1.63 (1.57±0.09), ♀ 1.71–1.73 (1.72±0.02); LAB2 ♁ 0.14, ♀ 0.14–0.15 (0.14±0.01); LAB3 ♁ 0.09, ♀ 0.09; FL ♁ 1.53–1.55 (1.54±0.01), ♀ 1.70–1.82 (1.76±0.08); TL ♁ 0.38, ♀ 0.40–0.42 (0.41±0.01); MP 0.23; PL 0.22–0.24 (0.23±0.01); DL 0.27–0.29 (0.28±0.01); FP 0.69–0.74 (0.71±0.04).

Etymology. Named after the municipality of Itacoatiara (Amazonas), where the type series was collected.

Distribution. Brazil: Amazonas.

Host-plant and habitat. Unknown.

Comments. Mitrapsylla itacoatiara   sp. nov. resembles M. panamensis Brown & Hodkinson   in the general shape of the paramere in lateral view, and the simple aedeagus with head strongly expanded and oval in lateral view; but differs in the paramere with apex obliquely truncate (rather than irregularly rounded) and less expanded, and the aedeagal head bearing one dorsal tubercle subapically (rather than one lateral on either side).


Australian Museum


Departamento de Geologia, Universidad de Chile


Instituto Nacional de Pesquisas da Amazonia


Natural History Museum Bucharest