Mitrapsylla amazonica,

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: 20-21

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Mitrapsylla amazonica

sp. nov.

Mitrapsylla amazonica  sp. nov.

( Figs 104View FIGURES 103–112, 134View FIGURES 133–147, 164View FIGURES 163–172, 196View FIGURES 193–201 ‾198, 284, 314, 344, 373)


Material examined. Holotype ♁, Brazil: Amazonas , Novo Airão, Parque Nacional de Anavilhanas, -2.5367, -60.0833, 20–30 m, 18–20.iv.2014, Amazonas inundation forest, Fabaceae (D. Burckhardt & D.L. Queiroz)  , #128(2) ( DZUP 215393View Materials, dry).GoogleMaps 

Paratypes. Amazonas: 3 ♁, 5 ♀, 4 immatures, same data as holotype (D. Burckhardt & D.L. Queiroz), #128(2) ( DZUP, NHMB, dry, slide mounted, 70% ethanol)GoogleMaps  .

Diagnosis. Genal process, in dorsal view, subconical with apex acute; GL/VL 0.3–0.4. Paramere, in lateral view, irregularly lamellar; posterior margin slightly constricted submedially, with apical and basal half irregularly convex; apex subtruncate; sclerotised ridge posteriorly; in dorsal view, bearing small anterior and larger posterior tooth. Aedeagus complex tripartite; in lateral view, median lobule concealed, rounded; lateral lobule subtriangular; ventral process with apical expansion subequal in size with dorsal lobe.

Description. Colouration. Body with white striped-pattern; variation: vertex with stripes along lateral and posterior margins very faint; mesopraescutum with lateral stripes fused to lateral spots on posterior margin; abdominal tergites lacking distinct striped-pattern; older specimens with markings with dark outline. Head and thorax yellowish-brown to medium brown; genal process lighter than head, yellowish. Eye grey to red; ocelli colourless to orange. Antenna light yellow, segments 1–2 concolorous with head. Clypeus concolorous or lighter than head, slightly lighter medially and darker along edges; rostrum yellow to yellowish-brown. Thorax usually with margins of sclerites darker. Forewing colourless; veins light yellow, sometimes slightly darker towards apex; pterostigma concolorous or slightly lighter than veins. Hindwing colourless. Fore- and midleg dark yellow with tarsi sometimes darker, hindleg light yellow with base of femur sometimes slightly darker. Abdomen light straw-coloured, light yellow to light yellowish-brown; intersegmental membranes concolorous with rest of abdomen; spiracular sclerites concolorous with tergites. Male terminalia light straw-coloured to yellow, usually darker than abdomen. Female terminalia light straw-coloured to yellow, proctiger usually darker, brownish apically and sometimes around anus.

Structure. Body length ♁ 1.8 mm ♀ 2.2–2.3 mm (2.26± 0.03 mm) (1 ♁, 2 ♀). Genal process ( Fig. 134View FIGURES 133–147) subconi-cal, irregularly narrowing towards acute apex, inner margin markedly sinuous, 0.3–0.4 times as long as vertex along midline. Antenna 2.0–2.1 times as long as head width; longest terminal seta slightly shorter than segment 10. Apical labium segment 0.2 times longer than head width and 0.6–0.7 times longer than median segment. Forewing ( Fig. 164View FIGURES 163–172) 2.9–3.0 times as long as head width, 2.3 times as long as wide, obovoid, narrowly rounded apically; vein M+Cu 1 0.5 times as long as Cu 1; ratio a/b 1.6–1.7; ratio c/d 0.8; ratio e/f 0.8. Surface spinules distinctly spaced, forming rhomboids ( Fig. 38View FIGURES 38–43); usually absent in cell c+sc, covering apical half of cells r 1 and r 2, much reduced around radular areas of cells m 1, m 2 and cu 1, covering m 2 basally, and most of cell cu 2; leaving spinule-free spaces along veins ( Fig. 42View FIGURES 38–43). Radular spinules sometimes present in r 2 but inconspicuous. 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, blunt, almost straight posterior lobe. Paramere, in lateral view ( Figs 196View FIGURES 193–201 ‾198) 0.9 times as long as proctiger; irregularly lamellar; anterior margin irregularly convex in apical two thirds; posterior margin slightly constricted submedially, with apical and basal half irregularly convex; apex subtruncate, with sclerotised ridge posteriorly ( Fig. 197View FIGURES 193–201); inner surface ( Fig. 197View FIGURES 193–201) covered with long setae, longer basally and along posterior margin, with row of slightly thicker setae along apical anterior margin, several thick setae below sclerotised ridge and group of thick setae on apical posterior margin; in dorsal view ( Fig. 284View FIGURES 283–312), bearing small anterior and larger posterior tooth. Aedeagus ( Fig. 198View FIGURES 193–201) complex tripartite; in lateral view, dorsal lobe with concealed, rounded median lobule; lateral lobule larger than median lobule, subtriangular; membranous pouch rather broad; ventral process weakly upturned, with apical expansion subequal in size with dorsal lobe, irregularly globular, bearing short, blunt tubercle.—Female ( Fig. 314View FIGURES 313–318). Proctiger, in lateral view, 1.0 times as long as head width; dorsal outline weakly concave distal to circumanal ring, apical extension sinuous, apex moderately upturned, smoothly 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 sinuous along basal two thirds, slightly notched subapically and apical third slightly convex; covered with medium long setae in median third and ventrally throughout, short setae in apical third, long setae at apex, and group of long setae on dorsum subapically, without seta-free patch subapically; in ventral view ( Fig. 344View FIGURES 343–362), lateral margins evenly, weakly narrowing towards moderately broad, rounded apex.

Measurements (in mm) (1 ♁, 1 ♀). HW ♁ 0.52, ♀ 0.58; AL ♁ 1.07, ♀ 1.19; LAB2 ♁ 0.15, ♀ 0.16; LAB3 ♁ 0.09, ♀ 0.11; FL ♁ 1.48, ♀ 1.74; TL ♁ 0.38, ♀ 0.43; MP 0.21; PL 0.18; DL 0.24; FP 0.55.

Etymology. Named after its type locality, state of Amazonas.

Distribution. Brazil: Amazonas.

Host-plant. Unknown.

Habitat. Amazonian inundation forest.

Comments. Mitrapsylla amazonica  sp. nov. resembles M. brevigenis  sp. nov. in size, the short genal process and the general shape of the paramere in lateral view; but differs in colouration, the shorter antenna, the genal process with apex acute (rather than rounded), the paramere with apex subtruncate (rather than irregularly rounded) and the aedeagus, in lateral view, with apical expansion of the ventral process subequal in size with dorsal lobe (rather than smaller).


Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure


Natural History Museum Bucharest