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Homoptera: Psylloidea) I NEW SPECIES OF PSYLLID FROM THE CANARY ISLANDS AND MADEIRA (HOMOPTERA: PSYLLOIDEA) I. D. Hodkinson * ABSTRACT Two new species of jumping plant louse, Livilla monospermae and Trioza laurisilvae, are described from the Canary Islands and Madeira. L. monospermae n. sp. is related to L. retamae (Puton), L. lautereni Hodkinson & Hollis, L. syriaca (Löw) and L. radiata (Förster). T. laurisilvae n. sp. is related to T. alacris Flor. Additional information is pre- sented on the distribution of several endemic species and Ctenarytaina eucalypti (Maskell) is recorded from the Canaries for the first time. Key words: Jumping plant lice, Psylloidea, Tenerife, Canary Islands, Madeira, Livilla mo- nospermae n. sp., Trioza laurisilvae n. sp., records, distribution, host-plants. RESUMEN Nuevas especies de psílidos de las Islas Canarias y Madeira (Homoptera: Psylloidea). Se describen dos nuevas especies de psílidos de las Islas Canarias y Madeira: Livilla mo- nospermae y Trioza laurisilvae. L. monospermae n. sp. está relacionada con L. retamae (Pu- ton), L. lautereni Hodkinson & Hollis, L. syriaca (Löw) y L. radiata (Förster). T. laurisil- vae n. sp. lo está con T. alacris Flor. Se dan nuevos datos sobre la distribución de varias especies endémicas y se cita Ctenarytaina eucalypti (Maskell) por primera vez de las Cana- rias Palabras clave: Psílidos, Psylloidea, Islas Canarias, Madeira, Livilla monospermae n. sp., Trioza laurisilvae n. sp., citas, distribución, plantas hospederas. INTRODUCCION nes black; underside of head and thorax dark brown to black; antennae dirty yellow with apices of basal LOGINOVA (1976) described the psyllid fauna of segments black, segments 7-10 entirely black. Abdo- the Canary islands and Madeira from material collec- men, including terminalia, yellow brown becoming ted by the Finnish hemipterist Prof. Häkan Lindberg heavily marked with black in older specimens. Femo- between 1926-1963. ASHMOLE and ASHMOLE (1988) ra predominantly dark brown, tibiae predominantly later recorded several of these species in snowfield yellow. Forewing veins light brown; pattern (fig. 1) samples from Tenerife. This paper describes two new consisting of an irregular and incomplete apical trans- species, Livilla monospermae and Trioza laurisilvae, verse band of chocolate brown patterning and a more provides additional data for known species and adds diffuse and paler yellowish longitudinal clouding one further described species to the Canary Island along leading half of wing; remainder of forewing fauna. The status of the genus Lauritrioza Conci and clear. Tamanini, 1985 is discussed. Terminology follows Structure HODKINSON and WHITE (1979). Corresponding to the generic description of HOD- Livilla monospermae sp. n. KINSON and HOLLIS (1987). Head (fig. 2) weakly de- flexed, in same plane as thorax; eyes hemispherical. Colouration Antennae long and slender 2.47-2.86 times as long as Dorsal surface of head and thorax yellowish-oran- head width, with a single rhinaria on segments 4, 6, ge with darker brown markings, apices of genal co- 8 and 9. Genal cones slender and elongate, longer * School of Natural Sciences. Liverpool Polytechnic. Byrom Street. Liverpool. L3 3AF. U.K. Eos, 66 (1): 29-35 (1990) 29 I. D. HODKINSON than the vertex along the mid-line, little deflexed Comment from plane for vertex; genal cones and vertex with HODKINSON and HOLLIS (1987) revised the genus many elongate setae. Pronotum flat, propleurites Livilla, providing detailed descriptions and biblio- quadrate, divided by a vertical suture. graphies of the species, which were allocated to spe- Forewing (fig. 1) elongate, oblong-oval, somewhat cies groups. Livilla monospermae sp. n. belongs to parallel sided, 2.91-3.15 times as long as broad, the L. radiata (Förster, 1848) group, characterized 3.0-3.4 times as long as head width; costal break pre- by the upturned apex of vein Rs and the vein M 1 + 2, sent but incomplete, pterostigma rudimentary; vein which reaches the wing margin well before the wing Rs curved upwards at apex towards foremargin of apex. The group also includes L. retamae (Puton, wing; vein M strongly sinuous; vein M 1 + 2 meeting 1878), L. lautereni Hodkinson and Hollis, 1987 and wing margin well aboye apex; cell cu ia elongate, vein L. syriaca (Löw, 1882). Livilla monospermae can be Cu la moderately strongly curved; surface spinules separated from these species by the relatively longer celi C + around vein Cu2 and present in centre of Sc, and narrower forewing with a characteristic and dis- apical third wing; clusters denser radular spi- in of of tinctive pattern, the very long genal cones and diffe- m 1 + 2 , m and cuia. nules present at apices of celis rences in the shape of the male and female termina- Metatibia with well developed genual spine and ha. Livilla monospermae sp. n. is known only from with 1 + 3 + 1 thick black apical spurs, basal meta- Retama monosperma (L.) Boiss. on Tenerife whereas tarsus without black spurs. Male proctiger (fig. 3) L. retamae feeds on Retama sphaerocarpa (L.) Boiss, simple; paramere (figs. 3, 4) of simple elongate la- R. raetam (Forskál) Webb and Berth. and R. monos- mellar form, broad basally, gradually tapering to perma around the Southern Mediterranean Basin narrow inwardly curved hooked apex; aedeagus from Spain to Israel. Retama monosperma grows on (fig. 5) with apical expansion elongately reniform, maritime sands in southwest Spain and S. Portugal rounded apically, ductus ejaculatorius elongate. Fe- where the associated psyllid is L. retamae rather than male terminalia (fig. 6) elongate, proctiger L. monospermae sp. n. (LOGINOVA, 1976). By con- 1.08-1.16 times as long as head width, dorsal margin trast, with the preceding species L. lautereni (host stepped posterior to the circumanal ring, with the lat- unknown) occurs in Algeria whereas L. radiata and ter 0.30-0.32 the length of the proctiger; subgenital L. syriaca feed on host-plants such as Genista spp., plate slightly shorter than proctiger, apically acute, Chamaecytisus spp. or Lembotropis spp. in Central ventral margin angled medially, setae as in figure 6. Europe or the Eastern Mediterranean respectively. Measurements (in mm) Trioza laurisilvae sp. n. Head width d' 0.85-0.93 y 0.89-0.92 Antennal length d' 2.32-2.45 2.22-2.33 y Colouration Forewing length d 2.74-2.80 y 2.78-3.09 Proctiger length d 0.46-0.48 y 0.97-1.04 Immature specimens yellow-orange throughout. Male paramere length 0.42-0.46 Mature specimens with dorsal surface of head and Male aedeagus length 0.35-0.39 thorax reddish-orange with dark brown and pale whi- tish markings; genal cones whitish; antennae whitish- Host-plant yellow with segments 9 and 10 dark brown; undersi- Retama monosperma (L.) Boiss. subsp. rhodorrhi- de on thorax marked with dark brown; fore— and zoides Webb and Berth. mid—femora whitish yellow, hind femora dark brown, remainder of legs whitish yellow. Abdomen dark Type material brown with paler intersegmental membranes; termi- Holotype a, CANARY ISLANDS, Tenerife, nalia yellowish brown. Forewing veins yellowish 1 km N. of Santiago (Hodkinson) 18-XII-1988 (sude brown; membrane transparent with a uniform yello- mounted). Paratypes. Tenerife, 7 d, 3 y same data wish tinge. as holotype (sude and dry mounted). 1 d' 2 km S. of Structure Masca, nr. Santiago 18-XII-1988 (dry mounted). 14 d, 11 y , 1 nymph, Chio, N. W. of Guia (Wil- Corresponding to the generic description of HO- son) 9-111-1989 (dry mounted). 45 d, 23 y , Teno, LLIS (1984). Head (fig. 12) moderately deflexed from Masca-Santiago del Teide Rd. (Hollis) 16-V-1987, on plane of thorax, eyes relatively large somewhat flat- Retama monosperma (dry mounted and in spirit). tened; vertex quadrate, genal cones broadly triangu- Holotype and most paratypes are in the collections lar, shorter than length of vertex; antennae 1.31-1.45 of the British Museum (Natural History). Remaining times as long as head width with single conspicuous paratypes in the author's collection. rhinaria on segments 4, 6, 8 and 9. 30 Eos, 66 (1): 29-35 (1990) NEW PSYLLIDS FROM CANARY ISLANDS AND MADEIRA 1 2 4 3 5 9 Figs. 1-10.-1) L. monospermae sp. n. forewing. 2) L. monospermae sp. n. head, dorsal view. 3) L. monospermae sp. n. termina- ha laterallateral view. 4) L. monospermae sp. n. d right paramere, outer view. 5) L. monospermae sp. n. aedeagus. 6) L. monospermae sp. n. y terminalia, lateral view. 7) T. laurisilvae sp. n. y terminalia, lateral view. 8) T. laurisilvae sp. n. ovipositor. 9) T. alacris ovi- positor. 10) T. alacris y terminalia, lateral view. Eos, 66 (1): 29-35 (1990) 31 I. D. HODKINSON Forewing (fig. 11) with typical Trioza venation, Azores, 1 cf Pico, Porto Cachorro 8-12. VIII-1987 with angular apex, 2.65-2.89 as long as maximum (Ashmole). breadth; pterostigma and costal break absent, vein Holotype and most paratypes are in the collections Rs strongly angled, meeting anterior margin at about of the British Museum (Natural History). Remaining the point of bifurcation of M; cells m 1 , 2 and cula re- paratypes in the author's collection. latively small, vein Cu ia evenly arched; vein Cu2 mee- ting margin at some distance from apex of vein Cuib; Comment radular spinules present at apices of cells m l , 2, m and cu ia , surface spinules absent from cells of fore- Trioza laurisilvae sp. n. was recorded from Madei- wing. Metatibia with genual spine very small and with ra, Tenerife, La Palma, Gomera and Gran Canaria 2 + 1 thick black apical spurs; basal metatarsus lac- as the closely related species Trioza alacris Flor, 1861 king black spurs. by LOGINOVA (1976). The two species are, however, Male proctiger (fig. 15) very small, little longer morphologically distinct.
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