Russelliana theresae Burckhardt 2008
Creators: name: Serbina, Liliya
name: Burckhardt, Daniel
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Psyllidae
Russelliana
Russelliana theresae

description: Russelliana theresae Burckhardt, 2008
(Figs 10 J, 15E, 20D, 25D, 29D, 34B)
Russelliana theresae Burckhardt, 2008a: 85.
Material examined. Type material. Holotype ♂: Chile: V Region, Province Los Andes, El Juncal, 2200 m, 24.xii.1998, Mulguraea scoparia [Diostea scoparia], alpine scrub with low bushes (D. Burckhardt) #6(1) (NHMB, dry). Paratypes: Chile: 3 ♀, 9 immatures, 1 immature skin, V Region, Province Los Andes, Río Blanco to Portillo, route 60, Aconcagua Valley, 32°50'S 70°08'W, 2200–2400 m, 23.xi.1992, Mulguraea scoparia [Diostea scoparia], alpine scrub (D. Burckhardt) #12 (MHNG, dry); 1 ♂, 2 ♀, same but 25 km W Portillo, 1900–2100 m, 1.xii.1993, subalpine/alpine scrub (D. Burckhardt) #1 (MHNG, dry); 8 ♂, 15 ♀, same but Portillo, 1800 m, 31.xii.1993, Mulguraea scoparia [Diostea scoparia], alpine scrub (D. Burckhardt) #43 (MHNG, dry); 1 ♂, 2 ♀, 1 immature, same but 2200 m, Mulguraea scoparia [Diostea scoparia] (D. Burckhardt) #44 (MHNG, dry); 3 ♂, 7 ♀, same but km 10 Portillo to Río Blanco, 2300 m, 23.xii.1995, Mulguraea scoparia [Diostea scoparia] (D. Burckhardt) #18(1) (MHNG, dry); 4 ♂, 3 ♀, same but km 14 Portillo to Río Blanco, 2100 m, Mulguraea scoparia [Diostea scoparia], subalpine scrub (D. Burckhardt) #19(1) (MHNG, dry); 3 ♂, 3 ♀, same but km 19 Portillo to Río Blanco, 1900 m, Mulguraea scoparia [Diostea scoparia] (D. Burckhardt) #20(2) (MHNG, dry); 21 ♂, 22 ♀, same but along road from Portillo to Río Blanco, 24.xii.1998, Mulguraea scoparia [Diostea scoparia], gully with a few shrubs and small trees along river and subalpine scrub (D. Burckhardt) #7(2) (NHMB, dry, on slide, 70 % ethanol); 27 ♂, 19 ♀, 3 immatures, 1 immature skin, same as holotype (D. Burckhardt) #6(1) (NHMB, dry, on slide, 70 % ethanol).
Description. Coloration. Head including genal processes yellow to brown, genal processes with dark tips, genae brown to dark brown, vertex with orange to brown pattern; clypeus dark brown to black. Eyes yellow to brown, ocelli orange to red. Antenna pale yellow, segments 1–2 yellow to brown, segments 3–8 with brown apices, segments 9–10 entirely dark brown. Pronotum of the same colour as vertex, dark brown on either side and yellow to brown spot in the middle; mesopraescutum pale yellow, with two orange to brown patches along the fore margin and three orange transverse stripes posteriorly; mesoscutum pale yellow, with four broad orange to brown and, in the middle, one narrow orange longitudinal stripes; mesoscutellum pale yellow along the margin, yellow to brown in the middle. Metanotum yellow to dark brown. Forewing with whitish to dark brown veins and semitransparent, colourless membrane with dark brown pattern, similar to R. marionae, consisting of two broad stripes: submarginal one stretching from apical part of costal vein to median part of vein Cu1a, along vein Cu1a and to base of vein M1+2, sometimes leaving light areas in cells m1 and m2 along the margin, and median one stretching from base of pterostigma, along the veins R, M+Cu and Cu, to base of vein Cu1b; membrane between stripes colourless, with dots varying in size and number. Legs dirty yellow to brown, with dark brown femora and distal tarsal segments, meracanthus of metacoxa pale yellow to orange. Abdomen and terminalia dark brown, sometimes black.
Structure. Head, in profile, weakly inclined from longitudinal body axis (<45°). Vertex subtrapezoidal, flat with indented foveae, anteriorly produced into transverse lobe on either side of mid-line, hind margin around lateral ocelli not raised, covered with long setae; genal processes conical, slender, subacute apically, of the same length as vertex, covered with long setae. Pronotum bearing two pronounced lateral tubercles on either side. Forewing oblong-oval, broadly, evenly rounded apically; vein C+Sc weakly curved, pterostigma long, vein Rs weakly sinuous, curved to fore margin apically; vein M slightly longer than either of veins M1+2 and M3+4; surface spinules very dense, present in all cells, leaving no spinule-free stripes along the veins, irregularly spaced, less developed on unpigmented areas; radular spinules not pronounced. Metatibia with 6–7 apical spurs.
Terminalia. Male. Proctiger tubular; densely covered with long setae. Subgenital plate short, subglobular; with sparsely spaced moderately long setae. Paramere narrowly lamellar; with finger-shaped apico-anterior process on long pedicel and long apico-posterior lobe, slightly convex posteriorly, evenly rounded apically; both process and lobe of subequal length; outer face sparsely covered with moderately long setae mostly in posterior half, inner face densely covered with moderately long setae in anterior part, few long setae along anterior margin, sparsely covered with moderately long setae in posterior part and with few long setae apically. Distal segment of aedeagus elongate, weakly, irregularly truncated towards apex; lateral lobes long, tubular, sclerotised.—Female. Proctiger cuneate, pointed apically; dorsal margin, in profile, with median indentation; relatively densely covered with moderately long setae. Subgenital plate subglobular, with moderately long apical process; densely covered with moderately long setae.
Host-plant. Mulguraea scoparia (Gillies & Hook.) N.O'Leary & P.Peralta (Verbenaceae).
Distribution. Reported from Chile (V Region) (Burckhardt 2008a).
Comments. Russelliana theresae resembles R. marionae; see comments under R. marionae. R. theresae differs from R. marionae in a shorter forewing with a more extensive pattern in the basal half of its membrane, the presence of microscopical setae on the forewing veins, and a paramere bearing a broader apico-posterior lobe.
description: Published as part of Serbina, Liliya & Burckhardt, Daniel, 2017, Systematics, biogeography and host-plant relationships of the Neotropical jumping plant-louse genus Russelliana (Hemiptera: Psylloidea), pp. 1-114 in Zootaxa 4266 (1) on pages 54-55, DOI: 10.5281/zenodo.575325