Russelliana maculata Burckhardt, 1987

Serbina, Liliya & Burckhardt, Daniel, 2017, Systematics, biogeography and host-plant relationships of the Neotropical jumping plant-louse genus Russelliana (Hemiptera: Psylloidea), Zootaxa 4266 (1), pp. 1-114 : 35-37

publication ID	https://doi.org/ 10.5281/zenodo.575325
publication LSID	lsid:zoobank.org:pub:6202B24C-50CC-4EF1-A54E-8BAD122606DD
DOI	https://doi.org/10.5281/zenodo.6052202
persistent identifier	https://treatment.plazi.org/id/264F87F7-8B71-8778-4FC6-0959FCFAFA5E
treatment provided by	Plazi
scientific name	Russelliana maculata Burckhardt, 1987
status

Treatment

Russelliana maculata Burckhardt, 1987 View in CoL

( Figs 9 View FIGURE 9 G, 13F, 18D, 23D, 27J, 32B)

Russelliana maculata Burckhardt, 1987: 374 View in CoL .

Material examined. Type material. Holotype ♂: Bolivia: Department Chuquisaca, Province Nor Cinti , Lecori, S Potosi, 3200 m, 26–27.xii.1984 (L. E. Peña) ( MHNG, dry) . Paratypes: Argentina: 1 ♂, Province Jujuy, Iturbe , 31.xii.1984 (L. E. Peña) ( MHNG, on slide) . Bolivia: 15 ♂, 3 ♀, same as holotype (L. E. Peña) ( MHNG, NHMB, dry, on slide).

Additional material. Bolivia: 1 ♂, Department Oruro, Province Cercado , 2 km W Leque Palca, 17°38.2'S 66°58.4'W, 3950 m, 23.iii.2001 (A. Freidberg) ( NHMB, dry). GoogleMaps

Description. Coloration. Head pale yellow, genal processes yellow with dark tips, genae brown to black, vertex with variable orange to brown pattern; clypeus brown to dark brown. Eyes yellow to brown, ocelli yellow to orange. Antenna yellow to brownish, segments 3–7 with brown apices, segments 8–10 entirely dark brown. Pronotum of the same colour as vertex, with orange to brown patch in the middle; mesopraescutum pale yellow, with two orange patches along the fore margin and two orange transverse stripes posteriorly, sometimes entirely yellow; mesoscutum pale yellow with four broad and, in the middle, one narrow yellow to brown longitudinal stripes; mesoscutellum pale yellow along the margin, yellow to brown in the middle. Metanotum pale yellow to brown. Forewing with yellow to dark brown veins and colourless membrane with brown pattern consisting of large patches in the apex of cell r1 and r2 and along vein Cu1b, and dots varying in size and number mainly in apical twothirds of the wing. Legs yellow to brown, with darker femora and distal tarsal segments, meracanthus of metacoxa pale yellow. Male abdomen and terminalia brown to almost black. Female abdomen and terminalia yellow to brown, proctiger darker apically. Females lighter, general colour of body yellow.

Structure. Head, in profile, moderately to strongly inclined from longitudinal axis of body (45–90°). Vertex subtrapezoidal with indented foveae, anteriorly produced into transverse lobe on either side of mid-line, with raised hind margin around lateral ocelli, covered with short setae; genal processes conical, slender, subacute apically, shorter than vertex, covered with long setae. Pronotum with two pronounced lateral tubercles on either side. Forewing oblong-oval, broadly, unevenly rounded apically; vein C+Sc weakly curved, pterostigma long, vein Rs almost straight, slightly curved to fore margin apically; vein M about as long as either of veins M1+2 and M3+4; surface spinules weakly developed, leaving relatively broad spinule-free stripes along the veins, forming transverse rows or indistinct hexagons in apical half, very sparse in basal half; absent at base of cell c+sc; radular spinules covering triangular areas along the margin of cells r2, m1, m2 and cu1. Metatibia with 6–8 apical spurs.

Terminalia. Male. Proctiger tubular; sparsely covered with moderately long setae. Subgenital plate short, subglobular; with sparsely spaced moderately long setae. Paramere broadly lamellar; with apico-anterior process on long pedicel, and long apico-posterior lobe, relatively straight posteriorly, with sclerotised anterior tooth situated in the middle of the lobe and directed inwards; lobe distinctly longer than process; outer face sparsely covered with moderately long setae in apical half, inner face densely, evenly covered with long setae. Distal segment of aedeagus moderately elongate, weakly expanding towards apex; with long hook-shaped anterior process and two apico-posterior tubercles; lateral lobes long, strongly dilated towards apex which is concave.— Female. Proctiger cuneate, pointed apically; dorsal margin, in profile, strongly tapering in apical third; sparsely covered with moderately long setae. Subgenital plate cuneate, with long apical process; sparsely covered with moderately long setae, dorsal margin with a row of bristles.

Host-plant. Unknown.

Distribution. The holotype of R. maculata was erroneously reported from Argentina (Jujuy) by Burckhardt (1987). However, it was collected in Bolivia (Chuquisaca). Material examined. Argentina (Jujuy), Bolivia (Chuquisaca, Oruro).

Comments. Russelliana maculata resembles R. punctulata in the presence of a brown pattern and surface spinules in the apical part of the forewing membrane, in a pronotum bearing two lateral tubercles, in a paramere bearing an apico-anterior process on a long pedicel and a large apico-posterior lobe, in a distal segment of the aedeagus bearing an anterior process, two apico-posterior tubercles and long lateral lobes dilated towards apex, in a cuneate female proctiger and subgenital plate bearing a long apical process. R. maculata differs from R. punctulata in an extensive pattern on the forewing membrane, a paramere with a longer process than a posterior lobe which is straight, and a long anterior process of the distal segment of the aedeagus.

Russelliana magellanica sp. nov. ( Figs 9 View FIGURE 9 H, 13G, 18E, 23E, 27K, 32C)

Material examined. Holotype ♂: Chile: XII Region, Province Magallanes, San Gregori , km 140–150 on road from Punta Arenas to Punta Delgada , 52°35'/38' S 70°10' /15'W, 0–50 m, 18.i.1991, Adesmia boronioides (D. Burckhardt) #46 ( MHNG, dry).

Paratypes: Chile: 1 ♀, XII Region, Province Magallanes, Parque John Fell , 17–26.ii.1982 (D. Lanfranco) No. 11 ( MHNG, on slide) ; 56 ♂, 52 ♀, 3 immatures, same as holotype (D. Burckhardt) #46 (BMNH, MHNG, NHMB, dry, on slide).

Description. Coloration. Head including genal processes brown to dark brown, vertex pale yellow with variable orange to dark brown pattern; clypeus dark brown. Eyes yellow to brown, ocelli red. Antenna yellow, segments 1, 8–10 entirely dark brown, segment 2 brownish at base, segment 3 entirely yellow, segments 4–7 with brown apices, segment 6 slightly darker apically. Pronotum pale yellow with orange to brown patch in the middle, sometimes entirely dark brown; mesopraescutum pale yellow with two orange to brown patches along the fore margin and two orange to brown transverse stripes posteriorly; mesoscutum pale yellow with four broad and, in the middle, one narrow orange to brown longitudinal stripes; mesoscutellum pale yellow along the margin, brown in the middle. Metanotum orange to brown. Forewing with yellow to brown veins and yellowish membrane with variable brown pattern consisting of broad stripe parallel to apical margin stretching from apical part of costal vein to apex of vein Cu1a, leaving light areas in cells r2, m1 and m2 along the margin, and patches at bifurcation of veins R and M+Cu, in apical part of cell r2 and along vein Cu1b, sometimes forming stripe in the middle of the wing stretching from apical part of cell r1 to vein Cu1b; sometimes with patches in cells c+sc and cu2. Legs yellow to brownish with darker femora and distal tarsal segments, meracanthus of metacoxa yellow to orange. Abdomen and terminalia brown to black.

Structure. Head, in profile, moderately to strongly inclined from longitudinal axis of body (45–90°). Vertex subtrapezoidal, anteriorly produced into transverse lobe on either side of mid-line, covered with short setae; genal processes conical, slender, subacute apically, distinctly shorter than vertex, covered with moderately long setae. Pronotum with two pronounced lateral tubercles on either side. Forewing oviform; vein C+Sc weakly curved, pterostigma long, vein Rs straight apically; vein M shorter than either of veins M1+2 and M3+4; surface spinules relatively large, present in all cells, leaving no spinule-free stripes along the veins, densely spaced, forming hexagonal pattern in the middle of cells; absent at base of cell c+sc; radular spinules not pronounced. Metatibia with 7 apical spurs.

Terminalia. Male. Proctiger tubular; sparsely covered with moderately long setae. Subgenital plate short, subglobular; with sparsely spaced moderately long setae. Paramere broadly lamellar; with short apico-anterior process lacking pedicel, median hump with apically sclerotised tooth, and bulged apico-posterior lobe; lobe situated lower than process and hump; outer face densely covered with moderately long setae mostly in posterior part, inner face densely covered with moderately long setae. Distal segment of aedeagus elongate; with long anterior process and two small apico-posterior tubercles; lateral lobes long, dilated towards apex which is concave.—Female. Proctiger cuneate, pointed apically; dorsal margin, in profile, weakly sinuous; densely covered with long setae. Subgenital plate cuneate, with moderately long apical process; densely covered with long setae, dorsal margin with a row of bristles.

Host-plant. Adesmia boronioides Hook. f. ( Fabaceae ).

Distribution. Chile (XII Region).

Derivation of name. Latinised form of the name Magallanes, the Province in Chile where the species comes from.

Comments. Russelliana magellanica resembles R. chilensis ; see comments under R. chilensis . R. magellanica differs from R. chilensis in a shape of the forewing which is broadest in the middle and its more extensive pattern, and a less bulged posteriorly apico-posterior lobe of the paramere.