Russelliana intermedia 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 : 31-34

Russelliana intermedia Burckhardt, 1987

( Figs 9 C, 13A, 17I, 22I, 27F, 31H)

Russelliana intermedia Burckhardt, 1987: 384 .

Material examined. Type material. Holotype ♂: Bolivia: Department Chuquisaca, Province Nor Cinti, Padcoya to Camargo , 2800–3200 m, 26–28.xii.1984 (L. E. Peña) ( MHNG, dry) . Paratypes: Argentina: 1 ♀, Province Jujuy, Iturbe , 31.xii.1984 (L. E. Peña) ( MHNG, dry) . Bolivia: 2 ♂, 5 ♀, same as holotype (L. E. Peña) ( MHNG, dry, on slide).

Description. Coloration. Head including genal processes pale yellow to orange, genal processes sometimes with dark tips; clypeus pale to dark brown. Eyes pale yellow to black, ocelli orange to red. Antenna yellow to orange, segments 3–8 with brown apices, segments 9–10 entirely dark brown. Pronotum of the same colour as vertex, sometimes with yellow to orange spot in the middle; mesopraescutum pale yellow to orange, sometimes with two yellow to orange patches along the fore margin; mesoscutum pale yellow to orange, sometimes with four broad, and, in the middle, one narrow, yellow to orange longitudinal stripes; mesoscutellum pale yellow to orange along the margin, sometimes yellow to orange in the middle. Metanotum pale yellow to orange. Forewing with yellow veins and amber-coloured membrane. Legs bright yellow to orange, meracanthus of metacoxa bright yellow. Abdomen orange to dark brown. Male terminalia yellow to orange. Female terminalia orange to brown, with dark apex.

Structure. Head, in profile, moderately to strongly inclined from longitudinal body axis (45–90°). Vertex subtrapezoidal with indented foveae, anteriorly produced into transverse lobe on either side of mid-line, with slightly raised hind margin around lateral ocelli, covered with microscopical setae; genal processes conical, slender, subacute apically, shorter than vertex, covered with moderately long setae. Pronotum with one pronounced lateral and one relatively shallow sublateral tubercles on either side. Forewing oblong-oval, broadly, evenly rounded apically; vein C+Sc weakly curved, pterostigma long, vein Rs straight or weakly sinuous, almost straight apically; vein M about as long as either of veins M1+2 and M3+4; surface spinules very dense, present in all cells, leaving very narrow spinule-free stripes along the veins, irregularly spaced; very sparse at base of cell c+sc; radular spinules covering triangular areas along the margin of cells r2, m1, m2 and cu1. Metatibia with 6–7 apical spurs.

Terminalia. Male. Proctiger tubular; sparsely covered with moderately long setae. Subgenital plate short, subglobular; with sparsely spaced moderately long setae in apical half. Paramere narrowly lamellar; with long hook-shaped apico-anterior process on pedicel, median hump which is short, slightly curved anteriorly and with apically sclerotised tooth, and slightly bulged apico-posterior lobe; hump and lobe of subequal length, slightly lower than process; outer face sparsely covered with moderately long setae mostly in posterior part, inner face covered with moderately long setae in apical half and with long thick bristles in basal third. Distal segment of aedeagus moderately elongate, weakly expanding towards apex; with short beak-shaped anterior process and one horn-shaped apico-posterior tubercle; lateral lobes long, dilated towards apex which is concave.—Female. Proctiger subglobular, pointed apically; dorsal margin, in profile, strongly bent downwards; relatively densely covered with moderately long setae in apical half. Subgenital plate cuneate, with short apical process; sparsely covered with long setae in apical part and along ventral margin, dorsal margin with a row of bristles.

Host-plant. Unknown.

Distribution. Reported from Argentina (Jujuy), Bolivia (Chuquisaca) ( Burckhardt 1987).

Comments. The specimens from Chile previously assigned to R. intermedia in Burckhardt et al. (2012) belong to another closely related species, Russelliana xantha sp. nov.

Russelliana intermedia resembles R. adela , bicolorata and xantha ; see comments under R. adela . R. intermedia differs from the three species in the presence of a median hump and long thick bristles in the basal third of the paramere. It differs from R. bicolorata and xantha in a multicoloured body, from R. adela in a yellow forewing membrane and a female proctiger with its dorsal margin bent downwards, from R. bicolorata in a shape of the forewing which is broadest in the apical third, and from R. xantha in more dense surface spinules of the forewing membrane.

Russelliana longicauda sp. nov.

( Figs 9 D, 13B, 18A, 23A, 27G, 31I)

Material examined. Holotype ♂: Chile: III Region , Province Chañaral , Pedernales, Cordillera de Domeyko, 26°21'S 69°16'W, 3400 m, 11.xii.1993, Adesmia hystrix , desert (D. Burckhardt) #25 ( MHNG, dry).

Paratypes: Chile: 3 ♀, II Region, Province El Loa, Calama to San Pedro de Atacama, 3050 m, vii.1997, Acantholippia trifida (F. Saiz) #T ( NHMB, dry) ; 49 ♂, 23 ♀, 2 immatures, III Region, Province Chañaral, Pedernales , Cordillera de Domeyko , 26°21'S 69°16'W, 3300 m, 10.xii.1993, Adesmia hystrix , desert (D. Burckhardt) #24 ( BMNH, MHNG, NHMB, dry) ; 8 ♂, 6 ♀, same as holotype (D. Burckhardt) #25 (MHNG, dry); 4 ♂, 6 ♀, same but Province Copiapó, Quebrada de Paipote , 20 km W Laguna Santa Rosa, 27°05'S 69°20'W, 3500 m, 12.xii.1993, Adesmia hystrix , gully with Adesmia shrubs (D. Burckhardt) #29 ( MHNG, dry) ; 8 ♂, 17 ♀, IV Region, Province Elqui , La Laguna, ca 120 km E La Serena, 2800–3000 m, 17.xii.1995, Adesmia sp., scattered shrubs (D. Burckhardt) #4(1) ( MHNG, dry, on slide, 70 % ethanol).

Description. Coloration. Head including genal processes orange to dark brown, genal processes sometimes with pale yellow tips, vertex yellow, orange to brown along lateral margin, sometimes entirely brown; clypeus dark brown. Eyes yellow to brown, ocelli red. Antenna yellow to brownish, segments 3–7 with dark brown apices, segments 8–10 entirely dark brown. Pronotum pale yellow along the margin, dark orange to brown in the middle; mesopraescutum pale yellow with two orange to brown patches along the fore margin; mesoscutum pale yellow with four broad and, in the middle, one narrow orange to brown longitudinal stripes; mesoscutellum pale yellow along the margin, orange to brown in the middle. Metanotum orange to brown. Sometimes thorax of old specimens entirely brown. Forewing with pale yellow to brownish veins and dirty yellowish membrane with pattern consisting of pale brown broad stripe parallel to apical margin stretching from apical part of costal vein to apex of Cu1a, leaving light areas in cells r2, m1 and m2 along the margin, and brown patch along vein Cu1b; sometimes with indistinct pale brown stripe in the middle of the wing stretching from vein R1 to vein Cu1b. Legs yellow to brownish, with darker femora and distal tarsal segments, meracanthus of metacoxa yellow to orange. Abdomen yellow to dark brown. Male terminalia yellow with orange to brown subgenital plate. Female terminalia orange to brown, darker in apical third. Males darker, general colour of body brown. Females generally lighter, general colour of body yellow with orange pattern.

Structure. Head, in profile, inclined from longitudinal body axis at 45°. Vertex subtrapezoidal with indented foveae, anteriorly slightly produced into transverse tubercle on either side of mid-line, with raised hind margin around lateral ocelli, covered with short setae; genal processes conical, slender, subacute apically, slightly shorter than vertex, covered with long setae. Pronotum with one pronounced lateral and one relatively shallow sublateral tubercles on either side. Forewing oval, narrowly rounded apically; vein C+Sc hardly 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 absent; 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; densely covered with short setae. Subgenital plate short, subglobular; with densely spaced moderately long setae. Paramere narrowly lamellar, irregularly rounded apically, posterior margin slightly convex; with short apico-anterior process lacking pedicel, and apically sclerotised median tooth; outer face sparsely covered with moderately long setae mostly in posterior part, inner face densely covered with relatively short setae. Distal segment of aedeagus moderately elongate, weakly expanding towards apex; with very short anterior process in basal part of apical quarter, two small apico-posterior tubercles; lateral lobes short, tapering towards apex, with entire apical margin.—Female. Proctiger cuneate, subacute apically; dorsal margin, in profile, almost straight; densely covered with short setae in apical half. Subgenital plate cuneate, with very long apical process; densely covered with moderately long setae, dorsal margin with a bristle.

Host-plant. Adesmia hystrix Phil. (Fabaceae) . Two females and one immature were collected on Acantholippia trifida (Gay) Moldenke (Verbenaceae) which seems an unlikely host.

Distribution. Chile (II–IV Regions).

Derivation of name. From Latin longus = long and cauda = tail for the long female terminalia.

Comments. Russelliana longicauda resembles R. pallida in a brown pattern in the apical part of the forewing membrane, in a narrowly lamellar paramere bearing an apico-anterior process lacking a pedicel and a median tooth, in a distal segment of the aedeagus bearing two small apico-posterior tubecrles, and in a cuneate female proctiger and cuneate subgenital plate. R. longicauda differs from R. pallida in the absence of surface spinules in the apical part of the forewing membrane, a short apico-anterior process of the paramere, a very short anterior process in the basal part of the apical quarter, a distal segment of the aedeagus bearing short lobes with an entire apical margin, and an elongate female terminalia with a subgenital plate bearing a very long apical process.

Russelliana longirostro sp. nov.

( Figs 9 E, 13C, 18B, 23B, 27H, 31J)

Material examined. Holotype ♂: Chile: II Region, Province El Loa, Calama to San Pedro de Atacama, 3050 m, vii.1997, Adesmia atacamensis (F. Saiz) #U ( NHMB, dry).

Paratypes: Chile: 7 ♂, 6 ♀, 2 immatures, same as holotype (F. Saiz) #U ( NHMB, dry, on slide) ; 29 ♂, 25 ♀, 11 immatures, 1?, III Region, Province Chañaral, 20–25 km W Pedernales, Cordillera de Domeyko , 36°23'S 69°25'W, 2500–2700 m, 10.xii.1993, Adesmia atacamensis , semidesert (D. Burckhardt) #23 ( BMNH, MHNG, NHMB, dry) ; 3 ♀, same but 12 km SW El Salvador, 26°18'S 69°42'W, 1700 m, Adesmia atacamensis , desert with a few shrubs along creek (D. Burckhardt) #22 ( MHNG, dry); 1?, IV Region, Province Elqui, Coquimbo , 12 miles N of Los Vilos , 13.xii.1950 (E. S. Ross & A. E. Michelbacher) ( CASC, dry); 1 ♀, V Region, Province San Felipe de Aconcagua, Putaendo , 10 km N San Felipe , 700 m, 15.xii.1995, Adesmia sp., river bed, quebrada vegetation (D. Burckhardt) #1(2) ( MHNG, dry) ; 1 ♂, 2 ♀, same but Lycium sp. (D. Burckhardt) #1(6) (MHNG, dry).

Description. Coloration. Head including genal processes pale yellow, vertex often with orange pattern; clypeus dark brown. Eyes yellow, ocelli red. Antenna pale yellow, segments 3–8 with dark brown apices, segments 9–10 entirely dark brown. Pronotum orange to brownish; mesopraescutum pale yellow with two orange patches along the fore margin and two orange patches posteriorly; mesoscutum yellow with six broad and, in the middle, one narrow orange to brownish longitudinal stripes; mesoscutellum pale yellow along the margin, orange to brownish in the middle. Metanotum orange to brown. Forewing with yellow to brown veins and semitransparent, colourless membrane with conspicuous pale brown pattern consisting of constant patch along vein Cu1b and dots scattered over entire surface, partly confluent in apical part, forming broad submarginal stripe stretching from apical part of costal vein to apex of vein Cu1a, leaving light areas in cells r2, m1 and m2 along the margin; sometimes with relatively distinct median broad stripe stretching from apical part of cell r1 to base of vein Cu1b. Legs yellow to brownish with darker femora and distal tarsal segments, meracanthus of metacoxa yellow to brown. Abdomen and terminalia yellow to brown, lighter ventrally. Female terminalia darker in apical third.

Structure. Head, in profile, strongly inclined from longitudinal body axis (> 45°). 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, slightly swollen, subacute apically, shorter than vertex, covered with moderately long setae. Pronotum with two pronounced lateral and one relatively shallow sublateral tubercles on either side. Forewing oval, broadly, unevenly rounded apically; vein C+Sc weakly curved, pterostigma long, vein Rs weakly sinuous, slightly curved to fore margin apically; vein M about as long as either of veins M1+2 and M3+4; surface spinules faint, very dense, present in all cells, leaving no spinule-free stripes along the veins, irregularly spaced; radular spinules weakly pronounced. Metatibia with 7–8 apical spurs.

Terminalia. Male. Proctiger tubular; sparsely covered with moderately long setae. Subgenital plate short, subglobular; with sparsely spaced moderately long setae restricted to median part. Paramere broadly lamellar, slightly curved with median convexity apically; with apico-anterior process on pedicel, apically sclerotised median tooth and slightly bulged apico-posterior lobe; both process and lobe of subequal length; outer face covered with moderately long setae in apical half, inner face densely, evenly covered with short setae. Distal segment of aedeagus elongate; with long anterior process, one large, raised apical and one horn-shaped apico-posterior tubercles; lateral lobes long, dilated towards apex which is concave.—Female. Proctiger cuneate, pointed apically; dorsal margin, in profile, slightly convex; relatively densely covered with moderately long setae in apical half. Subgenital plate cuneate, with moderately long apical process; densely covered with moderately long setae in ventral part, dorsal margin with a row of bristles.

Host-plant. Adesmia atacamensis Phil. (Fabaceae) .

Distribution. Chile (II–V Regions).

Derivation of name. From Latin longus = long and rostrum = beak for its long rostrum.

Comments. Russelliana longirostro resembles R. adesmiae ; see comments under R. adesmiae . R. longirostro differs from R. adesmiae in a distinctly longer rostrum and the absence of a distinct median hump of the paramere.

Figures

FIGURE 9. Russelliana spp., head, dorsal view. A, R. fabianae Burckhardt; B, R. globosa sp. nov.; C, R. intermedia Burckhardt; D, R. longicauda sp. nov.; E, R. longirostro sp. nov.; F, R. lycii (Tuthill); G, R. maculata Burckhardt; H, R. magellanica sp. nov.; I, R. marionae Burckhardt; J, R. melaina sp. nov.; K, R. mendozae sp. nov.; L, R. monticola sp. nov.; M, R. nana sp. nov.; N, R. nigra Burckhardt; O, R. nolanae sp. nov.