Strophingia canariensis 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 : 24-25

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

( Figs 30–33 , 118–123 , 199 , 241–244 )

urn:lsid:zoobank.org:act:B7E21B18-107F-4B55-BB1E-0314B146E06E

Material examined. Holotype ♂, Tenerife : San Cristobál de La Laguna, above Las Mercedes, 890 m alt., 9.v.1993 (C. Lienhard) ( MHNG, dry mounted).

Paratypes. Tenerife: 1 ♀, San Cristóbal de La Laguna, Cruz del Carmen, 890 m alt., 29.vii.1990, Erica canariensis (A. Baz) ( NHMB, dry mounted); 2 ♂, 7 ♀, same data as holotype ( MHNG, dry mounted); 2 ♂, 2 ♀, same data but ( NHMB, slide and dry mounted); 3 ♀, Santa Cruz de Tenerife, parque rural de Anaga, path below road ca. 4 km east of El Bailadero, 28.5500 N, 16.1833 W, 750 m alt., 21.vi.1997, sweeping E. canariensis and E. platycodon ssp. platycodon , DP-001-97 (D. Percy) ( DMPC, slide 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); 1 ♂, Santa Cruz de Tenerife, direction to Roque Chinobre, TF-123, 28.5586 N, 16.1883 W, 770 m alt., 24.iii.2018 (L. Serbina and M. Štarha) ( MMBC, dry mounted); 1 ♂, 5 ♀, 12 immatures, San Cristóbal de La Laguna, Cruz del Carmen, 28.5310 N, 16.2798 W, 950 m alt., 22.xi.2022, E. platycodon ssp. platycodon (S. Bastin) ( SBPC, slide mounted, 70% ethanol); 1 ♂, 4 ♀, 11 immatures, same data but ( MUSA, 70% ethanol).

Description. Adult. Colouration from live specimens. General body colour brown yellowish. Head brown yellowish ventrally. Antenna brown yellowish, pedicel with apically black rim, segment 9 dark brown with apex black, segment 10 entirely black. Thorax irregularly ochreous to brown. Forewing amber, sometimes darker towards apex but lacking distinct pattern. Hindwing whitish. Abdomen brown yellowish. Female terminalia brown yellowish with apices of proctiger and subgenital plate black. Younger specimen green with forewing yellowish.

Structure. Body length 1.7–2.4 mm. Vertex ( Figs 118, 119 ) 0.6–0.7 times as long as wide; anterior margin, in dorsal view, distinctly indented in middle; coronal suture reduced in basal third or half. Antenna ( Figs 120, 121 ) 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. Metatibia 0.6–0.7 times as long as head width, with a posteriorly open crown of 6–8 apical spurs. Forewing ( Figs 122, 123 ) rhomboidal, rounded at apex, 2.9–3.2 times as long as head width, 2.1–2.2 times as long as wide; widest in middle; vein C+Sc relatively straight in basal two thirds, strongly curved in apical third and thus forming a bulge; costal break absent; vein Rs long, straight, apically hardly curved toward costal margin; vein M straight, 1.2–1.4 times as long as vein M 1+2; m 1 cell value 1.0–2.0; vein Cu 1a weakly curved, 1.3–1.5 times as long as vein Cu 1; vein Cu 1b short, weakly curved; cu 1 cell value 3.0. Male terminalia as in Figs 30–32 . Proctiger cylindrical, 0.5 times as long as head width, posterior margin slightly convex. Paramere 0.7 times as long as proctiger, in lateral view, simple, broad, sub-parallel-sided, slightly bent backwards, with broadly rounded apex, bearing 2 apical denticles, outer face with very few moderately long setae, mainly situated close to posterior and anterior margins; inner face densely hairy with moderately long setae mainly in apical part and close to posterior and anterior margin, and long setae mainly in basal third. Distal segment of aedeagus with relatively small hooked apical dilatation. Female terminalia cuneate ( Fig. 33 ). Proctiger 0.9 times as long as head width, with a notch in middle of dorsal margin, subacute apically; circumanal ring 0.3 times as long a proctiger. Subgenital plate 0.9 times as long as proctiger, relatively evenly tapering to apex; ventral margin straight in basal half and then curved forming an angle, bearing moderate in length setae mainly in apical third, apex blunt. Valvula ventralis curved apically.

Measurements (in mm) (1 ♂, 3 ♀). Head width ♂ 0.61, ♀ 0.64–0.67; vertex length ♂ 0.28, ♀ 0.27–0.28; vertex width ♂ 0.40, ♀ 0.43–0.44; antenna length ♂ 0.41, ♀ 0.41–0.42; metatibia length ♂ 0.37, ♀ 0.42–0.43; forewing length ♂ 1.75, ♀ 2.01–2.10; forewing width ♂ 0.79, ♀ 0.94–0.95; male proctiger length 0.32; paramere length 0.22; distal segment of aedeagus length 0.26; female proctiger length 0.58–0.60; female anal ring length 0.18–0.20.

Fifth-instar immature. Colouration from live specimens. Tergites on head and thorax ochreous. Antenna light brown with almost black tip. Wing pads and abdominal tergites brown. Membranes greenish yellow.

Structure. Generic characters: Body ( Fig. 199 ) flattened, oval. Antenna short, 3-segmented, with 4 rhinaria on flagellum. Legs short with claws developed; tarsal arolium sessile, fan-shaped, bearing unguitractor, longer than claws. Forewing pads each large with a humeral lobe, strongly narrowing to apex which is subacute or blunt. Caudal plate large, pointed apically. Anus in ventral position; circumanal ring small, transversely oval or V-shaped; outer ring consisting of a single row of oval pores. Species characters: body 1.2–1.5 times as long as wide.Antenna 0.3–0.4 times as long as forewing pad; scape, pedicel and flagellum bearing lanceolate setae; on the flagellum they are associated with the rhinaria. Tibiae each with a longitudinal row of lanceolate setae. Forewing pad with outer margin bearing 5–6 irregular claw-like spines, often getting smaller towards apex; wing pads lacking marginal and dorsal lanceolate setae. Caudal plate 0.8–0.9 times as long as wide; bearing 5–8 marginal lanceolate setae on each side. Circumanal ring transversely oval.

Measurements (in mm) (3 individuals). Body length about 1.7; length of forewing pad 0.78–0.82.

Etymology. Named after its provenience from the Canary Islands.

Distribution CI. Tenerife ( Loginova 1976; Hodkinson 1990, both as Strophingia arborea ).

Host plant CI. Erica platycodon ssp. platycodon (Ericaceae) .

Comments. Strophingia canariensis and S. arborea Loginova, 1976 share similar forewing and head shapes and develop on the same host species, Erica platycodon . Strophingia canariensis differs from S. arborea in having more reduced coronal suture: usually in basal half in S. canariensis , only reduced near the base in S. arborea . The two species also differ in the male paramere and the shape of the female terminalia. In lateral view, the paramere of S. canariensis is more symmetric, less curved backwards, broadly rounded apically (apically acute in S. arborea ) and bearing two apical denticles (only one in S. arborea ). In S. canariensis the female terminalia are longer, the notch on the dorsal margin of the proctiger is deeper and the subgenital plate is relatively massive apically (slender in S. arborea ). They also differ in the host subspecies, and the geographical distribution: S. canariensis , on E. platycodon ssp. platycodon , is endemic to the Canary Islands, whereas S. arborea , on E. platycodon ssp. maderincola , is endemic to the Madeira Islands. Immatures of S. canariensis resemble those of S. proxima Hodkinson, 1981 in the forewing pad bearing marginal claw-like spines (described by Rapisarda (1987), as S. hispanica Hodkinson & Hollis, 1981 ). Strophingia canariensis is slightly larger (body length> 1.6 mm, whereas in S. proxima <1.6 mm), has more marginal lanceolate setae on the caudal plate, 5–8 on each side (versus 4 in S. proxima ) and develops on a different host species ( E. platycodon ssp. platycodon , versus E. multiflora in S. proxima ). From S. paligera sp. nov., the other species occurring in the Canary Islands, S. canariensis differs as indicated in the keys.

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.

FIGURES 241–250. (241–244) Strophingia canariensis: (241, 242) adult, habitus; (241) lateral view; (242) dorsal view; (243, 244) fifth-instar immature. (245–250) Diaphorina gonzalezi: (245, 247) adult, habitus; (245) lateral view; (247) dorsal view; (246, 248–250) immatures.