Russelliana adesmiae Burckhardt, 1986

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 : 13-15

Russelliana adesmiae Burckhardt, 1986

( Figs 8 C, 11D, 16C, 21C, 26C, 30C)

Russelliana adesmiae Burckhardt, 1986: 95 .

Material examined. Type material. Paratypes: Chile: 1 ♂, 2 ♀, IV Region, Province Choapa, Agua dulce, 22.v.1986, Adesmia microphylla (J. Solervicens) ( MHNG, on slide) ; 1 ♂, 1 ♀, same but km 272 Panamericana Norte , 20.viii.1985, Adesmia sp. (M. Elgueta) ( MHNG, on slide) ; 1 ♂, same but Bahia ambrosioides (J. Solervicens) ( MHNG, on slide) ; 2 ♂, 2 ♀, same but 23.i.1986, Adesmia sp. (M. Elgueta) (MHNG, dry).

Additional material: Chile: 2 ♂, 1 ♀, IV Region, Province Choapa, Los Vilos , 31°54'S 71°31'W, 0 m, 2.xii.1993, coastal vegetation (D. Burckhardt) #2 ( MHNG, dry) ; 1 ♀, same but Province Elqui , 50 km S of La Serena, 1.xii.1950 (E. S. Ross & A. E. Michelbacher) ( CASC, dry) ; 3 ♂, 9 ♀, 2 immatures, same but 15 km SW Viñita Baja , 29°50'S 70°50'W, 450 m, 4.xii.1993, Adesmia sp., quebrada with sparse scrub (D. Burckhardt) #6 ( MHNG, NHMB, dry) ; 8 ♂, 7 ♀, same but Province Limarí, Parque Nacional Fray Jorge, area between Quebrada Las Vacas , " Administración " and Río Limarí , 250 m, 7–9.xii.1990, Adesmia bedwellii , open mediterranean scrub (D. Agosti & D. Burckhardt) #2 ( MHNG, dry) ; 19 ♂, 25 ♀, same but around " Administración ", 30°40'S 71°40'W, 100 m, 14–16.xii.1992, Adesmia sp., mediterranean scrub (D. Burckhardt) #25 ( NHMB, dry) ; 6 ♂, 10 ♀, same but Alto de Talinay , 30°40'S 71°41'W, 500 m, 15.xii.1992, Adesmia sp., sclerophyll forest and mediterranean scrub (D. Burckhardt) #26 ( NHMB, dry) ; 19 ♂, 11 ♀, 1 immature, same but Quebrada La Vaca , 30°40'S 71°40'W, 100–200 m, 15–17.xii.1992, Adesmia sp., mediterranean scrub (D. Burckhardt) #27 ( NHMB, dry) ; 10 ♂, 18 ♀, 2 immatures, same but nr park entrance gate, 100–150 m, 16.xii.1992, Adesmia sp. (D. Burckhardt) #28 (NHMB, dry); 16 ♂, 22 ♀, V Region, Province Los Andes , 25–27 km E Los Andes, 32°54'S 70°18'W, 1250 m, 31.xii.1993, Adesmia cf. pedicellata , mediterranean scrub (D. Burckhardt) #42 ( MHNG, dry) ; 7 ♂, 9 ♀, same but Province Petorca, Cuesta El Melón , 15 km N El Melón, 32°40'S 71°13'W, 450 m, 22.xi.1992, Adesmia microphylla (D. Burckhardt) #11 ( NHMB, dry) ; 7 ♂, 4 ♀, same but 400 m, 22.xii.1995, Adesmia sp. (D. Burckhardt) #16(1) (MHNG, dry, 70 % ethanol); 17 ♂, 27 ♀, same but Cuesta El Melón , 32°36.4'S 71°14.4'W, 600 m, 23.ii.2009, Adesmia cf. glutinosa , degraded Acacia caven steppe and sclerophyll scrub on slope (D. Burckhardt) #3(1) ( NHMB, dry, 70% ethanol) ; 1 ♀, 1 immature, same but Alicahue to Chincolco, E Cabildo to La Ligua , 700–1250 m, 21–26.xii.1998, semidesert and Acacia caven steppe (D. Burckhardt) #3 ( NHMB, dry, on slide) ; 2 ♂, 2 ♀, same but Province San Felipe de Aconcagua, Putaendo , 10 km N San Felipe, 32°37'S 70°42'W, 700 m, 26.xii.1993, Adesmia cf. confusa , river bed, quebrada vegetation (D. Burckhardt) #35 ( MHNG, dry) ; 10 ♂, 16 ♀, same but 15 km E Llay-Llay , 32°52'S 70°51'W, 600 m, 28.xii.1993, Adesmia cf. microphylla , Acacia caven steppe (D. Burckhardt) #39 ( MHNG, dry) ; 1 ♂, same but km 10 on road El Tártaro to El Guayacán , 1400 m, 24.xii.1995, Adesmia sp. (D. Burckhardt) #24(4) ( MHNG, dry) ; 1 ♂, same but La Calera, 300 m, 26.xii.1995, waste land (D. Burckhardt) #26 ( MHNG, dry); 1?, same but Putaendo , 10 km N San Felipe, 700 m, 27.xii.1995, Adesmia sp., river bed, quebrada vegetation (D. Burckhardt) #27(2) ( MHNG, dry) ; 1 ♂, 2 ♀, same but km 20 Resguardo de Los Patos to Paso del Rubio , 1800 m, 1.i.1999, Adesmia sp., semidesert and subalpine scrub (D. Burckhardt) #11(9) ( NHMB, dry) ; 1 ♀, same but Resguardo de Los Patos , 32°29.2'S 70°33.9'W, 1350 m, 6.iii.2009, Adesmia cf. glutinosa , Acacia caven scrub (D. Burckhardt) #14(4) ( NHMB, dry) ; 15 ♂, 12 ♀, same but Province Quillota, Quillota , 32°52'S 71°13'W, 200 m, 1.i.1994, Adesmia microphylla , Acacia caven steppe (D. Burckhardt) #45 ( MHNG, NHMB, dry) ; 3 ♂, 6 ♀, 5 immatures, same but La Palma, Fundo Lothar Neserke , 300 m, 30.xii.1998, Adesmia cf. confusa [ Adesmia cf. arborea ], Acacia caven steppe and gully with mediterranean sclerophyll forest along very small river (D. Burckhardt) #10b(5) ( NHMB, dry, on slide) ; 21 ♂, 34 ♀, 3 immatures, same but Province Valparaíso, Estero Catapilco, nr Maitencillo , 32°40'S 71°27'W, 50 m, 22.xi.1992, Adesmia microphylla , open sclerophyll forest (D. Burckhardt) #10 ( NHMB, dry, on slide, 70 % ethanol) ; 1 ♂, 16 immatures, Region Metropolitana, Province Chacabuco, Tiltil , 5 km N Tiltil, 33°01'S 70°56'W, 700 m, 28.xii.1993, Adesmia cf. glutinosa , open sclerophyll scrub (D. Burckhardt) #40 ( MHNG, dry) ; 2 ♂, 3 ♀, same but Province Talagante , Comuna Isla de Maipo, 4.v.1993, Adesmia glutinosa , mediterranean scrub (D. Burckhardt) #5(1) ( MHNG, dry).

Description. Coloration. Head including genal processes pale yellow to dark brown, genal processes with dark tips, vertex with pale to dark brown pattern; clypeus brown to black. Eyes pale yellow to brown, ocelli orrange to red. Antenna dirty yellow to brownish, segments 1–2, 9–10 entirely dark brown, segments 3–8 with dark brown apices. Pronotum of the same colour as vertex, with the same orange to dark brown pattern, sometimes distinctly paler than mesonotum; mesopraescutum pale yellow to orange, with two brown patches along the fore margin and two orange patches posteriorly, sometimes entirely orange; mesoscutum orange with four broad and, in the middle, one narrow brown longitudinal stripes; mesoscutellum pale yellow along the margin, brown in the middle. Metanotum orange to dark brown. Forewing with pale yellow to brown veins and whitish membrane with conspicuous dark 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 brown, often with dark brown femora and distal tarsal segments, meracanthus of metacoxa pale to bright yellow. Abdomen yellow to dark brown. Females often slightly lighter with ventrally lighter abdomen. Male terminalia dark brown, sometimes paramere yellow. Female proctiger dark brown, subgenital plate brown.

Structure. Head, in profile, strongly inclined from longitudinal body axis (> 45°). Vertex subtrapezoidal with indented foveae, anteriorly 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, distinctly 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 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; radular spinules not pronounced. Metatibia with 6–7 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 pedicel, median hump with apically sclerotised median tooth, and slightly bulged apico-posterior lobe; process, hump and lobe of subequal length; outer face sparsely covered with moderately long setae mostly in posterior part, inner face densely covered with moderately long setae and with long setae in basal part. Distal segment of aedeagus elongate; with long anterior process, one large, raised apical and one horn-shaped apico-posterior tubercles; lateral lobes moderately long, dilated towards apex which is concave.—Female. Proctiger cuneate, pointed apically; dorsal margin, in profile, strongly convex; densely covered with moderately long setae in dorsal part. Subgenital plate cuneate, with moderately long apical process; sparsely covered with moderately long setae in apical half, dorsal margin with few bristles.

Host-plants. Adesmia bedwellii Skottsb. , A. cf. confusa Ulibarri , A. cf. glutinosa Hook. & Arn. , A. microphylla Hook. & Arn. and A. pedicellata Hook. & Arn. (Fabaceae) .

Distribution. Reported from Chile (holotype ♂ from IV Region, Province Choapa, Agua dulce, 22.v.1986, Adesmia microphylla (J. Solervicens) (MNNC, dry), not examined; Burckhardt 1986). Material examined. Chile (IV–V Regions, Region Metropolitana).

Comments. Russelliana adesmiae resembles R. longirostro , in the presence of the three distinct tubercles on the pronotum, in a forewing membrane with a distinct brown pattern, in a broadly lamellar paramere bearing an apico-anterior process on a pedicel, in a distal segment of the aedeagus bearing a long anterior process, large, raised apical and horn-shaped apico-posterior tubercles and long lateral lobes dilated towards apex, and in a cuneate female proctiger and subglobular plate bearing a short apical process. R. adesmiae differs from R. longirostro in a shorter rostrum and the presence of a median hump of the paramere.

Figures

FIGURE 8. Russelliana spp., head, dorsal view. A, R. adela sp. nov.; B, R. adelpha sp. nov.; C, R. adesmiae Burckhardt; D, R. adunca Burckhardt; E, R. bicolorata sp. nov.; F, R. brevigenis sp. nov.; G, R. bulbosa Burckhardt; H, R. capsici Burckhardt; I, R. caunda sp. nov.; J, R. chilensis Burckhardt; K, R. chorizanthis sp. nov.; L, R. didyma sp. nov.; M, R. dimorpha sp. nov.; N, R. diosteae Burckhardt; O, R. disparilis Tuthill.