Percyella canari 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 : 55

* Percyella canari Bastin, Burckhardt & Ouvrard sp. nov.

( Figs 80–82 , 272, 273 , 301 )

urn:lsid:zoobank.org:act:D3A7BECE-0DDD-47AB-86A9-2222D8E8FD19

Material examined. Holotype ♂, Tenerife: San Cristóbal de La Laguna, San Benito, 28.4922 N, 16.3283 W, 570 m alt., 19.i.2021, Convolvulus floridus (S. Bastin) ( NHMB, dry mounted).

Paratypes. Gran Canaria: 2 ♂, 2 ♀, 27 immatures, Moya, Los Toscales, 28.1359 N, 15.5806 W, 130 m alt., 19.ii.2022, C. floridus (S. Bastin) ( SBPC, slide mounted, 70% ethanol); 1 ♂, 1 ♀, 4 immatures, 2 skins, same data but ( NHMB, 70% ethanol); 1 ♂, 2 ♀, 13 immatures, same data but Lomo Blanco, 28.1258 N, 15.5682 W, 260 m alt., 19.ii.2022, C. floridus (S. Bastin) ( SBPC, slide mounted, 70% ethanol); 8 immatures, Telde, Bandama, 28.0376 N, 15.4583 W, 560 m alt., 19.ii.2022, C. floridus (S. Bastin) ( SBPC, slide mounted, 70% ethanol). Tenerife: 1 ♂, 5 ♀, San Cristóbal de La Laguna, San Benito, 28.4922 N, 16.3283 W, 570 m alt., 18.vi.2018, C. floridus (S. Bastin) ( SBPC, slide mounted, 70% ethanol); 30 ♂, 15 ♀, same data but 10.vii.2018, C. floridus (S. Bastin) ( SBPC, slide mounted, 70% ethanol); 3 ♂, 3 ♀, same data but ( MUSA, 70% ethanol); 2 immatures, same data but 3.xii.2018, C. floridus (S. Bastin) ( SBPC, 70% ethanol); 2 ♂, but 1.iv.2020, C. floridus (S. Bastin) ( SBPC, 70% ethanol); 1 ♂, 4 ♀ same data but 10.vi.2020, C. floridus (S. Bastin) ( SBPC, 70% ethanol); 15 ♂, 8 ♀ same data but 19.i.2021, C. floridus (S. Bastin) ( SBPC, 70% ethanol); 1 ♂, 1 ♀, same data but ( NHMB, 70% ethanol).

Description. Adult. Colouration of dry material. General body colour dark brown to black. Vertex green to brown yellowish, genal processes brown yellowish. Antenna brown yellowish, segments 3–6 each with apex black, segments 7 and 8 each with apical half black, and segments 9 and 10 entirely black. Thoracic dorsum dark brown yellowish to black; pronotum brown yellowish with black spot in middle; mesoscutum with 2 white spots on each side. Forewing transparent, colourless to light yellow, veins brown. Abdominal sclerites dark brown, intersegmental membranes white. Male proctiger brown yellowish with black apex; paramere light brown yellowish with black apex; subgenital plate light brown yellowish, sometimes black basally. Female terminalia brown yellowish.

Structure. Body length 1.4–2.3. Vertex 0.6–0.8 times as long as broad. Genal processes 0.4–0.5 times as long as vertex. Antenna 2.5 times as long as head width. Metatibia 1.0–1.1 times as long as head width. Forewing 4.4–5.0 times as long as head width, 2.6–2.8 times as long as wide; vein M 1.6–2.1 times longer than vein M 1+2; m 1 cell value 1.4-1.8; vein Cu 1a 1.4–1.9 times longer than vein Cu 1; cu 1 cell value 1.0–1.1. Male terminalia as in Figs 80–82 . Proctiger 0.6 times as long as head width. Paramere 0.4 times as long as proctiger, with anterior margin almost straight; posterior margin slightly curved; digitiform apical process with posterior margin slightly sinuate, forming a strongly sclerotised small, posteriorly directed tooth. Apical segment of aedeagus 1.2 – 1.3 times as long as paramere. Female proctiger 0.7 times as long as head width.

Measurements (in mm) (3 ♂, 3 ♀). Head width ♂ 0.47 – 0.52, ♀ 0.57; vertex length ♂ 0.17 – 0.26, ♀ 0.22 – 0.24; vertex width ♂ 0.22 – 0.29, ♀ 0.31; antenna length ♂ 1.16; metatibia length ♂ 0.45 – 0.56, ♀ 0.55 – 0.58; forewing length ♂ 2.05 – 2.43, ♀ 2.77 – 2.83; forewing width ♂ 0.74 – 0.88, ♀ 1.03 – 1.08; male proctiger length 0.28 – 0.29; paramere length 0.12 – 0.13; distal segment of aedeagus length 0.16; female proctiger length 0.41; female anal ring length 0.41.

Fifth-instar immature. Corresponding to generic description, see also comments below.

Etymology. Named after the Canarios people, indigenous inhabitants of Gran Canaria.

Host plant CI. Convolvulus floridus (Convolvulaceae) .

Distribution CI. Gran Canaria, adventive in Tenerife. Percyella canari is native to Gran Canaria. Its presence in an urban environment in Tenerife suggests an accidental introduction along with the host plant.

Biology. The predator Anthocoris salicis Lindberg ( Hemiptera : Anthocoridae ) has been observed in the galls.

Comments: Percyella canari differs from the other Percyella species in having a black spot in the middle of the pronotum that is absent in the other species. It also differs in the shape of the paramere: the posterior margin is less curved than in P. benahorita but more than in P. gomerita and P. guanche , in which it is straight basally and curved apically; the posterior margin of the apical process is slightly sinuate with a flat hump (almost straight in P. benahorita , straight in P. gomerita , and sinuate in P. guanche ). No characters were found to separate the immatures of P. canari from those of the other Percyella species.

Figures

FIGURES 76–88. (76–79) Percyella benahorita: (76) male terminalia, lateral view; (77) paramere, inner surface, lateral view; (78) distal segment of aedeagus, lateral view; (79) female terminalia, lateral view. (80–82) Percyella canari: (80) male terminalia, lateral view; (81) paramere, inner surface, lateral view; (82) distal segment of aedeagus, lateral view.(83–85) Percyella gomerita: (83) male terminalia, lateral view; (84) paramere, inner surface, lateral view; (85) distal segment of aedeagus, lateral view. (86–88) Percyella guanche: (86) male terminalia, lateral view; (87) paramere, inner surface, lateral view; (88) distal segment of aedeagus, lateral view.

FIGURES 269–280. (269–271) Lauritrioza laurisilvae: (269, 270) adult, habitus; (269) lateral view; (270) dorsal view; (271) immature. (272, 273) Percyella canari: adult, habitus; (272) lateral view; (273) dorsal view. (274–276) Percyella gomerita, adult, habitus, dorsal view. (277–280) Percyella guanche: (277) Acari attached to the abdomen; (278) adult, habitus, dorsal view; (279, 280) immature. Photographs 269 and 270 by Alfonso Peña Darias.

FIGURES 297–307. (297–300) Percyella benahorita galls. (301) Percyella canari gall. (302–305) Percyella gomerita galls. (305) Anthocoris salicis. (307) Pseudococcidae sp.