Drepanoza fruticulosi Bastin, Burckhardt & Ouvrard 2023, sp. nov.
Creators: name: Bastin, Saskia
name: Burckhardt, Daniel
name: Reyes-Betancort, Alfredo
name: Hernández-Suárez, Estrella
name: Ouvrard, David
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Triozidae
Drepanoza
Drepanoza fruticulosi

description: * Drepanoza fruticulosi Bastin, Burckhardt & Ouvrard sp. nov.
(Figs 70–72, 173–178, 206, 207, 264–265) urn:lsid:zoobank.org:act: 52A22E6F-6862-4B7E-B864-3CF16608746B
Material examined. Holotype ♂, Tenerife: Santa Cruz de Tenerife, Mirador los Campitos, 28.4753 N, 16.2603 W, 250 m alt., 1.iii.2019, Convolvulus fruticulosus (A. González & S. Bastin) (NHMB, dry mounted).
Paratypes. Tenerife: 11 ♀, 9 immatures, same data as holotype (NHMB, slide mounted, 70% ethanol); 2 ♂, 4 ♀ same but (SBPC, slide mounted, 70% ethanol); 2 ♂, 4 ♀, same data but 18.iii.2021, C. fruticulosus (S. Bastin) (MUSA, 70% ethanol); 4 immatures, same data but 24.ii.2022, C. fruticulosus (S. Bastin) (SBPC, 70% ethanol); 2 ♀, 18 immatures, same data but 22.iii.2022, C. fruticulosus (S. Bastin) (ICIA, 70% ethanol).
Description. Adult. Colouration of material preserved in 70% ethanol. Head green yellowish. Compound eye dark red. Ocelli orange. Antennal segments 1–3 light yellow, segments 4–6 together light yellow brown and segments 7–10 dark brown or black. Thorax green with yellow spots on pronotum, mesoscutum, mesopraescutum and mesoscutellum. Legs light yellow. Wing membrane transparent and veins yellow. Abdominal sclerites green with more-or-less expanded yellow pattern. Terminalia light yellow. Teneral specimens with body green.
Structure. Body length 2.5 – 2.8 mm. Head inclined at about 45º from longitudinal body axis, slightly narrower than thorax. Vertex (Fig. 173) subpentagonal, 0.5 – 0.6 times as long as broad, covered in distinct microsculpture along the margins and indistinct microsculpture on disc, with short setae and 2 moderately long setae apically; coronal suture fully developed. Genal processes (Fig. 173) 0.4 – 0.6 times as long as vertex, broadly triangular, slightly converging, covered with long setae. Antenna (Fig. 174) 2.0 – 2.3 times as long as head width; segment 3 2.7 – 3.0 times as long as segment 4; with a single rhinarium on each of segments 4, 6, 8 and 9; antennal segment 10 (Fig. 175) with 1 terminal seta as long as segment and the other 2.8–3.0 times as long as segment. Meracanthus of metacoxa well developed, triangular with apex rounded. Metatibia as long as head width, with several genual spines of different sizes (Fig. 176), with 2+1, occasionally 3+1 apical spurs, and a row of moderately long, densely spaced bristles apically. Forewing (Fig. 177) elongate oval, 4.0 – 4.3 times as long as head width, 2.4 – 2.8 times as long as wide; with narrowly rounded apex; vein Rs almost straight; bifurcation of vein M more-or-less on line joining apices of veins Rs and Cu 1a; vein M curved; m 1 cell value 1.3 – 1.4; vein cu 1a longer than cu; vein cu 1b short and straight; cu 1 cell value 1.0 – 1.1; surface spinules absent from cells c+sc and r 1, fine in the other cells, evenly spaced forming irregular squares, restricted to small areas along wing margin except in cell cu 2, where the spinules cover most of the cell; radular areas elongate, triangular in cells m 1, m 2 and cu 1; wing margin with very short setae. Male terminalia as in Figs 70, 71, 178. Proctiger 0.4 times times as long as head width, 1.1 times as long as paramere, with anterior margin slightly rounded and posterior margin sinuate, covered with moderately long setae in apical two thirds, mainly in apical part and near posterior margin. Parameres lamellar, gradually tapering in apical third, with sclerotised apex, outer face with sparse moderately long setae near posterior margin, inner face covered with short setae in apical half, dense short setae in basal half, with moderately long setae near anterior margin and long setae along posterior margin, 2 – 3 times longer than the others; in posterior view, medial outline of parameres pear-shaped. Apical segment of aedeagus with posterior margin with right angle basally, a long, slender apical forward-directed projection and a posterior rounded bulge; sclerotised end tube of ductus ejaculatorius sinuate. Subgenital plate, in lateral view, subtriangular, as long as high, covered with long setae dorsally and sparse short setae mainly ventrally. Female terminalia cuneate (Fig. 72). Proctiger subtriangular, 0.8 – 0.9 times as long as head width, longer than subgenital plate, apex blunt, with dorsal margin concave, densely covered with long pointed setae in apical two thirds, moderately long and short setae close to the apex; circumanal ring 0.3 times as long as proctiger, with 2 unequal rows of pores, surrounded by short pointed setae. Subgenital plate moderately long, subtriangular, apex angular, densely covered with short setae in apical part.
Measurements (in mm) (1 ♂, 7 ♀). Head width ♂ 0.45, ♀ 044 – 0.48; vertex length ♂ 0.16, ♀ 0.14 – 0.16; vertex width ♂ 0.27, ♀ 0.27 – 0.29; antenna length ♂ 1.02, ♀ 0.90 – 1.0; metatibia length ♂ 0.44, ♀ 0.43 – 0.48; forewing length ♂ 1.78, ♀ 1.86 – 2.08; forewing width ♂ 0.71, ♀ 0.71 – 0.86; male proctiger length 0.18; paramere length 0.16; distal segment of aedeagus length 0.12; female proctiger length 0.38 – 0.40; female anal ring length 0.26‒0.27.
Fifth-instar immature. Colouration. General body colour green yellowish and dark brown. Head green yellowish with orange and dark brown spots. Thorax brown yellowish, dark brown laterally and basally. Wing pads dark brown. Abdomen green yellowish with orange edge, with 2 dark brown stripes apically.
Structure. Body (Fig. 206) 1.8 times as long as wide. Antenna 0.6 times as long as forewing pad. Caudal plate 0.9 times as long as wide. Tarsal arolium circular, without claws. Marginal sectasetae (Fig. 207) relatively short, slender and truncate, present in following numbers: forewing pad 28–33, hindwing pad 5–6 and caudal plate 36–40 (one side only). Caudal plate marginally with 2–4 pointed lanceolate setae, a little shorter than marginal sectasetae, dorsally bearing small lanceolate setae. Anus ventral, outer circumanal ring small, reduced anteriorly.
Measurements (in mm) (2 individuals). Body length 1.3; length of forewing pad 0.52–0.56.
Etymology. Named after its host plant Convolvulus fruticulosus.
Host plant CI. Convolvulus fruticulosus (Convulvulaceae) is listed in the Red List of Spanish Vascular Flora as a species threatened with extinction, categorized as vulnerable (Moreno 2008).
Distribution CI. Tenerife.
Biology. The immatures induce leaf galls (Fig. 287–292) similar to those of Drepanoza canariensis (see description above). The immatures are parasitized by encyrtid wasps (Hymenoptera: Encyrtidae).
Comments. Morphologically, Drepanoza fruticulosi is most similar to D. canariensis, a species also developing on Convolvulus. It differs in having shorter and thicker genal processes, and shorter female terminalia (D. canariensis> 0.45 mm, D. fruticulosi <0.40 mm). Apart from the host plant differences (cf. under D. canariensis), it differs from its other congeners in having broadly triangular genal processes and longer female terminalia, also from D. fernandezi, D. lienhardi and D. pittospori in having an apically more rounded forewing. From D. molinai and D. montanetana, it can be separated by having a more slender (rather than bulbous) male proctiger.
description: Published as part of 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, pp. 1-98 in Zootaxa 5313 (1) on pages 47-48, DOI: 10.11646/zootaxa.5313.1.1, http://zenodo.org/record/8129996