Orinda (Montorinda) eungellana, Constant & Semeraro, 2023

Constant, Jérôme & Semeraro, Linda, 2023, The Australian issid planthopper genus Orinda Kirkaldy, 1907: New subgenera, new species, host plant and identification key (Hemiptera: Fulgoromorpha: Issidae), European Journal of Taxonomy 891, pp. 128-150 : 131-137

Orinda (Montorinda) eungellana sp. nov.

urn:lsid:zoobank.org:act:415CFF22-4FB8-4497-97B4-FBEBC2A5301F

Figs 1–3 , 4A–B , 5–6

Diagnosis

The species can be separated from the other species of Orinda by the combination of the following characters:

1. Posterior wings well developed, trilobate ( Figs 1D , 2D ).

2. Body parallel-sided in dorsal view ( Figs 1A , 2A ).

3. Posterior wings with CuA and CuP merging only apically ( Figs 1D , 2D ).

4. Anterior tibia elongate and slender, with parallel margins, about 4.6 × as long as wide ( Figs 1A–B, F , 2A–B, F ).

5. Dorsal process of gonostyli with anterior margin more or less straight in lateral view ( Fig. 3A ).

6. Gonostyli in posterior view without lateral hump under the dorsal process ( Fig. 3C ).

7. Aedeagus in anterodorsal view abruptly angularly expanded laterally at about midlength ( Fig. 3J ).

Etymology

The species epithet refers to the type locality of the species, Eungella National Park.

Type material

Holotype AUSTRALIA • Ô, dissected, genitalia in glycerine, right posterior wing mounted; Queensland, Eungella N.P. ; 21°10′08.1″ S, 148°30′18.5″ E; 16–17 Mar. 2020; J. Constant and L. Semeraro leg.; Leopold III Funds Expedition; QM.

Paratypes

AUSTRALIA • 1 Ô, 2 ♀♀; same collection data as for holotype; QM • 1 Ô, 2 ♀♀; same collection data as for holotype; RBINS .

Description

MEASUREMENTS AND RATIOS. LT: Ô (n = 3): 3.9 mm (3.8–3.9); ♀ (n = 4): 4.3 mm (4.2–4.3). LTg/BB = 1.50; LV/BV = 0.4; LF/BF = 1.0; LW/BW: Ô: 1.38, ♀: 1.36.

HEAD ( Figs 1A–C, E–F , 2A–C, E–F ). Vertex yellow-brown, longitudinally rather deeply excavate, slightly shorter in midline than along lateral margins; all margins carinate, lateral ones sinuate, anterior one more or less straight, posterior one deeply excavate. Frons variegated yellow-brown and brown with a row of yellow-brown spots along lateral margins, rugose, weakly convex in lateral view, with dorsal margin deeply excavate and lateral margins sinuate in perpendicular view; wider in ventral half; median carina well marked, not reaching fronto-clypeal suture ventrally and stopping at peridiscal carina dorsally; peridiscal carina complete. Genae bicolour in two well delimited areas, pale yellow in anterodorsal portion, dark brown in posteroventral portion. Antennae brown with base of pedicel narrowly black; scape short, pedicel bulbous. Eyes strongly protruding, projecting dorsolaterally in anterior view and projecting posteriorly behind the level of vertex in dorsal view. Clypeus brown with paler markings on sides, triangular, longer than width at base. Labium pale yellow with black tip, elongate and narrow, with last segment longer than wide, slightly tapering towards apex and shorter than penultimate.

THORAX ( Figs 1A, C, E–F , 2A, C, E–F ). Pronotum pale yellow-brown with irregular yellowish tubercles and yellowish median carina; anterior margin carinate and angularly projecting anteriorly in midline, posterior margin weakly rounded; disc shallowly concave with one impressed point on each side of median carina; median carina extending from anterior to posterior margin. Paranotal lobes dark brown with pale yellow tubercles along upper portion of lateral margin; lateral margin rounded, lateroventral angle slightly projecting ventrally, angularly rounded. Mesonotum yellow-brown, slightly longer then pronotum in midline with obsolete median carina not reaching apex of scutellum; transverse elevation at base of scutellum followed by a depression in middle of scutellum. Tegulae pale brown.

TEGMINA ( Figs 1A, C, E , 2A, C, E ). Dark brown with minute yellowish-brown spots; a broad transverse band from basal ¼ to midlength and distal portion, paler, yellowish-brown with small darker spots; elongate and convex; sides more or less parallel in dorsal view with distal ⅓ roundly tapering; costal margin rather strongly excavate at basal ¼, with narrow hypocostal plate from base to end of excavation; humped at apex of clavus in lateral view. Basal cell elongate and rather narrow. Longitudinal veins raised, transverse cross-veins numerous and weakly raised. Vein ScP+R forked near base; MP forked at about ⅓ of tegmen length; CuA forked slightly distally to first fork of MP; Pcu and A1 fused at about ⅔ of clavus length, Pcu+A1 reaching apex of clavus.

POSTERIOR WINGS ( Figs 1D , 2D ). Strongly infuscate with dark brown veins; trilobed with deep CuP notch, less deep A1 notch and margin concave at A2; Sc-R-Mp-CuA lobe wider than CuP-Pcu-A1 lobe, latter about as wide as A2 lobe. Veins: ScP+R and CuA bifurcate, MP, CuP and A2 simple; Pcu and A1 fused for a long distance basally, Pcu unforked; one transverse vein between second branch of ScP+R and MP and between MP and first branch of CuA; second branch of CuA and CuP fused distally.

LEGS ( Figs 1A–C, E–F , 2A–C, E–F ). Pro- and mesocoxae pale yellow with base dark brown; pro- and mesotrochanters pale yellow with small brown marking; profemora black with large pale yellow markings, wider than corresponding tibiae; protibiae dark brown with few pale yellow markings, elongate and slender, about 4.6× as long as wide in ventral view; protarsi brown; mesofemora mostly dark brown dorsally, with some pale yellow markings, mostly pale yellow ventrally with some dark brown markings, wider than corresponding tibiae; mesotibiae dark brown with basal marking and distal ⅓ pale yellow; mesotarsi pale yellow; metacoxae and trochanters pale brown; metafemora brown, distally with blackish and pale yellow markings; metatibiae basal half brown and distal half except apex, pale yellow, with 2 lateral and 6 apical spines; all spines of metatibiae and metatarsi apically black; first metatarsomere with 7 apical spines, second metatarsomere with 2 apical spines. Metatibiotarsal formula: (2) 6/7/2.

ABDOMEN ( Figs 1B , 2B ). Dark brown.

MALE TERMINALIA ( Fig. 3 ). Pygofer ( Fig. 3A–D ) narrow in lateral view with anterior and posterior margins nearly parallel; posterior margin slightly sinuate, making pygofer slightly wider at about ventral ⅓; in caudal view, about 1.35× as high as wide and with lateral margins broadly rounded; posterior margin deeply U-shaped notched in dorsal view. Gonostyli ( Fig. 3A–C ) rather short and convex; in lateral view, subquadrate with dorsal margin oblique, ventral margin rounded basally then nearly straight and oblique, posteroventral angle angularly rounded, posterior margin slightly excavate, a moderate oblique elongate swelling from base of dorsal process to basoventral angle; in caudal view, posterior margin strongly sinuate and lateral margin broadly rounded, upper part of lateral swelling oblique; dorsal process laterally flattened, with apical small tooth, in lateral view with anterior margin nearly straight and posterior margin weakly rounded to more strongly rounded dorsal angle. Aedeagus ( Figs 3E–L , 4A–B ) rather strongly curved dorsad in lateral view with pair of spinose basidorsal processes directed posterodorsad, curved in lateral view and straight in dorsal view; aedeagus in anterodorsal view abruptly angularly expanded laterally at about midlength. Connective elongate, strongly curved ventrad on basal half then straight, with strongly developed, subtubular tectiductus widening from base to apex; apical opening circular. Dorsal lobe of periandrium rather wide in dorsal view, with subapical median carina well developed and rounded in lateral view, forming an angular projection directed cephalad on apical margin in dorsal view. Ventral lobe of periandrium rather poorly sclerotized, ending in 2 apically rounded projections and with roundly angular lateral process directed dorsocephalad near angle of aedeagus (best visible in laterodorsal view). Anal tube ( Fig. 3A–D ) elongate and dorsoventrally flattened, surpassing level of gonostyli; in dorsal view, 1.67 × as long (in midline) as wide, suboval with apical margin rounded and lateral margins rather abruptly emarginate on basal 1 /5; anal opening at basal 1 /5, anal column surpassing basal ⅓; in lateral view, ventral margin projecting ventrally at basal ¼ into roundly angular process, then weakly concave on remaining distal portion, dorsal margin abruptly excavate at base of anal opening.

Biology

The specimens were collected by sweeping the dense bushes around the information center near the bridge over Broken River ( Fig. 5 ).

Distribution

Australia, SE Queensland, Eungella National Park ( Fig. 6 ).

Figures

Fig. 1. Orinda (Montorinda) eungellana sp. nov., Ô, holotype (QM). A. Habitus, dorsal view. B. Habitus, ventral view. C. Habitus, lateral view. D. Posterior wing. E. Habitus, anterolateral view. F. Habitus, perpendicular view of frons. G. Left posterior leg, apical half of tibia and tarsus, ventral view.

Fig. 2. Orinda (Montorinda) eungellana sp. nov., ♀, paratype (QM). A. Habitus, dorsal view. B. Habitus, ventral view. C. Habitus, lateral view. D. posterior wing. E. Habitus, anterolateral view. F. Habitus, perpendicular view of frons. G. Left posterior leg, apical half of tibia and tarsus, ventral view.

Fig. 3. Orinda (Montorinda) eungellana sp. nov., Ô, holotype (QM), terminalia. A–D. Pygofer, anal tube and gonostyli. A. Left lateral view. B. Left posterolateral view. C. Posterior view. D. Dorsal view. E–L. Aedeagus. E. Left lateral view. F. Posterior view. G. Left laterodorsal view. H. Left lateroventral view. I. Dorsal view. J. Anterodorsal view. K. Posteroventral view. L. Ventral view. Abbreviations: see Material and methods.

Fig. 4. Orinda (Montorinda) spp., adeagus of holotypes. A–B. O. (Montorinda) eungellana sp. nov. A. Left lateral view. B. Posterior view. C–D. O. (Montorinda) montana sp. nov. C. Left lateral view. D. Posterior view.

Fig. 5. Habitat of Orinda (Montorinda) eungellana sp. nov., Eungella National Park, 17 Mar. 2020.

Fig. 6. Orinda spp., distribution map.