Strophingia paligera Bastin, Burckhardt & Ouvrard, 2023

Bastin, Saskia, Burckhardt, Daniel, Reyes-Betancort, Alfredo, Hernández-Suárez, Estrella & Ouvrard, David, 2023, A review of the jumping plant-lice (Hemiptera: Psylloidea) of the Canary Islands, with descriptions of two new genera and sixteen new species, Zootaxa 5313 (1), pp. 1-98 : 25-27

* Strophingia paligera Bastin, Burckhardt & Ouvrard sp. nov.

( Figs 34–45 , 124 , 200 )

urn:lsid:zoobank.org:act:26CB0A0C-C4FB-4E85-B2DD-04491BAD38C7

Strophingia arborea Loginova, 1976: 4 , pro parte

Material examined. Holotype ♂, Tenerife : San Cristóbal de La Laguna, above Las Mercedes, 760 m alt., 7.v.1993 (C. Lienhard) ( MHNG, dry mounted).

Paratypes. Tenerife: 1 ♂, 5 ♀, San Cristóbal de La Laguna, Las Mercedes, 28–30.v.1947 (H. Lindberg) ( FMNH, dry mounted); 1 ♀, Santa Cruz de Tenerife, El Bailadero, 700 m alt., 25.iv.1950 (H. Lindberg) ( FMNH, dry mounted); 1 ♀, La Victoria de Acentejo, Mirador de Ortuño, 28.vii.1990, Erica canariensis (A. Baz) ( NHMB, dry mounted); 1 ♀, San Cristóbal de La Laguna, Llano de Los Viejos, 29.vii.1990, Apollonias barbujana (A. Baz) ( NHMB, dry mounted); 11 ♂, 27 ♀, same data as holotype ( MHNG, dry mounted); 11 ♂, 11 ♀, 1 immature, same data but ( NHMB, slide mounted, 70% ethanol); 3 ♀, Santa Cruz de Tenerife, parque rural de Anaga, Lomo de las Bodegas, 350 m alt., 7.v.1993 (C. Lienhard) ( MHNG, dry mounted); 1 ♂, 1 immature, above Buenavista del Norte, Portela Alta, 740 m alt., 8.v.1993 (C. Lienhard) ( MHNG, dry mounted); 2 ♀, Santa Cruz de Tenerife, parque rural de Anaga, path below road ca. 4 km east of El Bailadero, 28.5500 N, 16.1833 W, 750m alt., 21.vi.1997, sweeping E. canariensis and E. platycodon ssp. platycodon , DP-001-97 (D. Percy) ( DMPC, slide mounted); 1 ♀, Agua Garcia, 940 m alt., 15.viii.2009, on Erica and others (I. Dworakowska) ( MMBC, dry mounted); 1 ♂, Las Portelas, 950– 1050 m alt., 28.viii.2009, shrubs in laurel forest (I. Dworakowska) ( MMBC, dry mounted); 3 ♂, 5 ♀, 3 immatures, Santa Cruz de Tenerife, parque rural de Anaga, direction el Bailadero, 28.5580 N, 16.2089 W, 624 m alt., 23.iii.2018 (L. Serbina and M. Štarha) ( MMBC, slide and dry mounted); 1 ♂, Santa Cruz de Tenerife, parque rural de Anaga, between Carretera de la Cumbre and Carretera Lomo de las Bodegas, TF-123, 28.5711 N, 16.1653 W, 553 m alt., 24.iii.2018 (L. Serbina and M. Štarha) ( MMBC, slide mounted).

Material not included in type series. La Palma: 4 ♂, 4 ♀, Puerto del Rosario, Montaña Quemada, 520 m alt., 19.viii.1991, E. canariensis (A. Baz) ( NHMB, 70% ethanol); 2 ♂, Santa Cruz de La Palma, Montaña Tagoja, 1110 m alt., 20.viii.1991, E. canariensis (A. Baz) ( NHMB, 70% ethanol); 1 ♀, same data but ( MHNG, dry mounted); 1 ♂, 3 ♀, Bosque de Los Tilos, 520 m alt., 22.viii.1991, Laurus novocanariensis (A. Baz) ( NHMB, dry mounted, 70% ethanol); 2 ♂, 1 ♀, Puntallana, Cubo de la Galga, 520 m alt., 22.viii.1991, E. canariensis (A. Baz) ( NHMB, slide mounted, 70% ethanol);1 ♂, 1 ♀, Barlovento, Mirador de la Tosca, 630 m alt., 22.viii.1991, E. canariensis (A. Baz) ( NHMB, 70% ethanol); 1 ♂, 9 ♀, Tunel de la Cumbre, 980 m alt., 26.viii.1991, E. canariensis (A. Baz) ( NHMB, 70% ethanol); 1 ♂, 4 ♀, 15 km from Santa Cruz de La Palma in direction of El Paso, 880 m alt., 10.v.1993 (C. Lienhard) ( MHNG, dry mounted); 3 ♀, Los Tilos, south west of Los Sauces, 460 m alt., 11.v.1993 (C. Lienhard) ( MHNG, dry mounted); 1 immature, road to Roque de los Muchachos, 710 m alt., 11.v.1993 (C. Lienhard) ( MHNG, slide mounted). La Gomera: 6 ♂, 5 ♀, parque nacional de Garajonay, 31.vii.1990, E. canariensis (A. Baz) ( NHMB, slide and dry mounted); 2 ♂, Epína, 31.vii.1990, E. canariensis (A. Baz) ( NHMB, dry mounted); 6 ♂, 14 ♀, 3 immatures, same data but ( MHNG, dry mounted); 4 ♀, above Hermigua, 620 m alt., 1.v.1993 (C. Lienhard) ( MHNG, dry mounted); 3 ♂, 7 ♀, parque nacional de Garajonay, south of Las Rosas, 990 m alt., 2.v.1993 (C. Lienhard) ( MHNG, dry mounted); 1 ♂, 1 ♀, 2 immatures, parque nacional de Garajonay, 1320 m alt., 3.v.1993 (C. Lienhard) ( NHMB, slide mounted); 11 ♂, 14 ♀, Cruz de las Hayas,> 1200 m alt., 12.viii.2009, on Erica and others (I. Dworakowska) ( MMBC, dry mounted)..

Description. Adult. Colouration from dry mounted specimens. General body colour ochreous to amber. Head greenish brown dorsally, greyish brown ventrally. Antenna yellowish to ochreous, segment 10 dark brown. Thorax irregularly yellowish to light brown. Forewing amber, sometimes with indistinct longitudinal median brown band in apical two thirds. Hindwing whitish. Abdomen yellowish brown, often lighter ventrally. Female terminalia ochreous with brown apices of proctiger and subgenital plate. Younger specimens generally lighter and more greenish.

Structure. Body length 1.6–2.2 mm. Vertex 0.5–0.6 times as long as wide; anterior margin, in dorsal view, hardly indented in middle; coronal suture fully developed.Antenna 0.6–0.7 times as long as head width; length ratio of antennal segment 10: longer terminal seta: shorter terminal seta 1.0: 1.0: 0.7. Meracanthus of metacoxa large, horn-shaped. Metatibia 0.6–0.7 times as long as head width with a posteriorly open crown of 7–10 apical spurs. Forewing ( Fig. 124 ) rhomboidal, narrowly rounded at apex, 2.5–3.1 times as long as head width, 2.2–2.4 times as long as wide; widest in the basal third or middle; vein C+Sc relatively straight in basal two thirds, strongly curved in apical third and thus forming a bulge; costal break present; vein Rs long, straight or weakly sinuate, apically straight or slightly curved toward costal margin; vein M straight, 0.9–1.6 times as long as vein M 1+2; m 1 cell value 1.3–1.7; vein Cu 1a weakly curved, 1.1–1.5 times as long as vein Cu; vein Cu 1b short, weakly curved; cu 1 cell value 1.8–2.7. Male terminalia as in Figs 34–36, 38–40, 42–44 . Proctiger cylindrical, 0.5–0.6 times as long as head width, posterior margin relatively straight. Paramere 0.6–0.8 times as long as proctiger; in lateral view, with weakly produced fore margin, bearing a posterior lobe in apical two thirds, narrow basally, with blunt point apically, outer face with few moderately long setae, mostly along anterior and posterior margins, inner face with one subapical denticle and a slightly sclerotised ridge, moderately densely covered in relatively long setae, slightly denser in anterior half. Distal segment of aedeagus with relatively thickset, slightly hooked apical dilatation. Female terminalia cuneate ( Figs 37, 41, 45 ). Proctiger 1.0–1.2 times as long as head width, without a notch in middle of dorsal margin, blunt apically; circumanal ring 0.3 times as long as proctiger. Subgenital plate 0.7–0.8 times as long as proctiger, abruptly narrowing in middle and thus forming apical process; ventral margin straight in basal half and then curved forming an angle. Valvula ventralis straight.

Measurements (in mm) (4 ♂, 4 ♀). Head width ♂ 0.48–0.54, ♀ 0.54–0.56; antenna length ♂ 0.30–0.36, ♀ 0.36–0.38; metatibia length ♂ 0.32–0.34, ♀ 0.34–0.38; forewing length ♂ 1.30–1.38, ♀ 1.60–1.70; male proctiger length 0.24–0.28; paramere length 0.16–0.18; distal segment of aedeagus length 0.18–0.22; female proctiger length 0.54–0.68.

Fifth-instar immature. Colouration from slide-mounted specimens. Sclerites ochreous or light brown.Antenna light brown with almost black tip. Legs ochreous with dark greyish brown apex of tarsus. Wing pads and abdominal tergites ochreous or light brown. Membranes pale.

Structure. Conforming to generic description provided under S. canariensis . Body ( Fig. 200 ) 1.2–1.3 times as long as wide. Antenna 0.4–0.5 times as long as forewing pad; scape and flagellum bearing lanceolate setae; on the flagellum, 1 or 2 lanceolate setae associated with second and/or third rhinarium (from base). Tibiae with relatively short bristles rather than lanceolate setae. Forewing pad with smooth outer margin; wing pads lacking marginal and dorsal lanceolate setae. Caudal plate 0.7–0.9 times as long as wide, bearing 10–15 marginal lanceolate setae on each side. Circumanal ring V-shaped.

Measurements (in mm) (4 individuals). Body length 1.3–1.5; length of forewing pad 0.60–0.66.

Etymology. From Latin pala = shovel and gerere = to bear, for the shovel-shaped paramere.

Distribution CI. Tenerife ( Loginova 1976, as Strophingia arborea ). La Gomera, La Palma.

Host plant CI. Erica canariensis (Ericaceae) .

Comments. Strophingia paligera resembles S. cinereae Hodkinson, 1971 and S. fallax Loginova, 1976 in having a costal break in the forewing, a posteriorly relatively straight male proctiger, the paramere bearing a subapical posterior lobe, and an apically slender female subgenital plate. Strophingia paligera differs from S. cinereae and S. fallax in having larger body dimensions (e.g. forewing length ♂> 1.3 versus <1.3; in ♀> 1.6 versus <1.6) and in lacking a notch on the dorsal margin of the female subgenital plate. It differs from S. cinereae in having a more slender, anteriorly straighter paramere and a less-curved ‘head’ of the distal segment of the aedeagus. Strophingia paligera differs from S. fallax in having an anteriorly relatively straight paramere, rather than it being broadly curved. Strophingia cinereae and S. fallax develop on Erica arborea , and S. cinereae also on E. cinerea and E. lusitanica (Hodkinson 1981) , whereas S. paligera develops on E. canariensis . From S. canariensis sp. nov., the other species occurring in the Canary Islands, it differs as indicated in the keys.

There is some morphological variation in the terminalia between the populations from Tenerife ( Figs 34–37 ), La Gomera ( Figs 38–41 ) and La Palma ( Figs 42–45 ). The material at hand is insufficient to determine if these differences reflect distinct species. For this reason, the specimens from La Gomera and La Palma are not included in the type series. More material should be collected for molecular and morphometric analyses to clarify the taxonomy further.

Figures

FIGURES 30–45. (30–33) Strophingia canariensis: (30) male terminalia, lateral view; (31) paramere, inner surface, lateral view; (32) distal segment of aedeagus, lateral view; (33) female terminalia, lateral view. (34–45) Strophingia paligera, (34–37) from Tenerife: (34) male terminalia, lateral view; (35) paramere, inner surface, lateral view; (36) distal segment of aedeagus, lateral view; (37) female terminalia, lateral view; (38–41) from La Gomera: (38) male terminalia, lateral view; (39) paramere, inner surface, lateral view; (40) distal segment of aedeagus, lateral view; (41) female terminalia, lateral view; (42–45) from La Palma: (42) male terminalia, lateral view; (43) paramere, inner surface, lateral view; (44) distal segment of aedeagus, lateral view; (45) female terminalia, lateral view.

FIGURES 118–131. (118–123) Strophingia canariensis: (118) head, dorsal view; (119) vertex, dorsal view; (120) last antennal segment; (121) antenna; (122) forewing; (123) forewing surface. (124) Strophingia paligera, forewing. (125–131) Diaphorina gonzalezi: (125) head, dorsal view; (126) genal processes, dorsal view; (127) antenna; (128) metacoxa; (129) forewing; (130) forewing, showing surface spinules and pattern; (131) female circumanal ring.

FIGURES 196–201. Fifth-instar immature; (196) Agonoscena atlantica; (197) Agonoscena sinuata; (198) Megadicrania tecticeps; (199) Strophingia canariensis; (200) Strophingia paligera; (201) Diaphorina gonzalezi.