Revision of the Eurybrachidae XIV. The Australian genera Olonia Stål, 1862 and Stalobrachys gen. nov. (Hemiptera: Fulgoromorpha) Author Constant, Jérôme text European Journal of Taxonomy 2018 2018-12-13 486 1 97 journal article 28761 10.5852/ejt.2018.486 0e26b0d8-14bc-46b2-aac6-feed5d62b2d8 2270151 urn:lsid:zoobank.org:pub:510A70C2-01F5-4C6E-855D-EFE140B45664 Olonia rylandae sp. nov. urn:lsid:zoobank.org:act:1F0498E0-6DD9-48AD-AB8D-2369364963CE Figs 3 , 45–46 Diagnosis This species can be recognized by the following combination of characters: (1) hind wings without orange marking ( Fig. 45E ) (2) pro- and mesofemora and -tibiae mostly brown ( Fig. 45A–D ) (3) anal tube of male oblong, with posterior margin slightly concave and lateral margins sinuate ( Fig. 46B ) (4) centroventral part of gonostyli with elongate and narrow process strongly sinuate basally and with small apical hook pointing ventrally ( Fig. 46A, C ) (5) laterodorsal part of gonostyli with elongate and narrow process slightly curved lateroventrally ( Fig. 46A, C–D ) (6) rather small size: 7.7 mm Etymology This species is dedicated to Mrs Valry Ryland ( Magnetic Island , Queensland , Australia ) in acknowledgement for all her help and involvement in documenting the natural history of species of Olonia . Material examined Holotype AUSTRALIA • ♂ ; Queensland , Bathurst Head ; [ 14°16′ S , 144°12′ E ]; “Bathurst Head, Q., Jan. 1927 , Hale & Tindale”; dissected, right anterior leg missing, right posterior wing mounted; SAM . Description MEASUREMENTS AND RATIOS. LT: ♂ (n = 1): 7.7 mm ; BV/LV = 4.38; BF/LF = 1.7; LP+LM/BT = 0.67; LTg/BTg = 2.5; LW/BW = 2.0. Male HEAD ( Fig. 45A–D ). Vertex concave, with anterior and posterior margins parallel, curved; brown, slightly wrinkled. Frons uniformly brown, slightly wrinkled. Clypeus elongate, brown. Genae yellowish with brown markings around eyes and under antennae. Labium dark brown, reaching metacoxae. Antennae black-brown; scape short, ring-shaped; pedicel subcylindrical, slightly narrowing towards apex. Fig. 45. Olonia rylandae sp. nov. , holotype, ♂. A . Habitus, dorsal view. B . Habitus, ventral view. C . Habitus, lateral view. D . Habitus, normal view of frons. E . Posterior wing. THORAX ( Fig. 45A–C ). Pronotum brown with small yellowish spot on each side; slightly wrinkled; obsolete median carina and 2 small impressed points on disc. Lateral fields of prothorax brown. Mesonotum brown; yellowish spot on middle of anterior margin and at apex of scutellum; slightly rugulose; median and peridiscal carinae weakly marked; median carina stopping before scutellum; slight impression before scutellum. Red ventrally. Tegulae brown. Fig. 46. Olonia rylandae sp. nov. , holotype, ♂, genitalia. A . Pygofer, anal tube and gonostyli, left lateral view. B . Anal tube, dorsal view. C . Pygofer and gonostyli, ventral view. D . Laterodorsal part of left gonostylus, dorsal view. E . Aedeagus, left lateral view. F . Aedeagus, dorsal view. Abbreviations: An = anal tube; G = gonostyli; Py = pygofer. TEGMINA ( Fig. 45A, C ). Brown, slightly variegated with yellowish; pale yellowish marking on vein A1 at midlength of clavus; marked with black along costal margin, more broadly so on posterior half, and along posterior margin. Triangular white marking on costal margin on nodal line; no white spot at apicosutural angle. Costal and sutural margins subparallel; costal margin slightly sinuate; apical margin obliquely rounded. POSTERIOR WINGS ( Fig. 45E ). Brown, paler on anal area and with large blackish area reaching apical margin; elongate, transverse, subtriangular white marking at apicocostal angle, extending on 3–4 cells. Margin of anal area slightly sinuate; sutural margin with 1 cleft, cubital one nearly not marked. LEGS ( Fig. 45A–D ). All coxae brown. Pro- and mesofemora dark brown. Pro- and mesotibiae brown, turning blackish apically, and with 3 very obsolete paler rings. Pro- and mesotarsi brown, with basal half of third tarsomere paler. Metafemora pale brown with apex darker. Metatibiae brown, with 3 lateral spines paler basally and 8 apical black-brown spines. Metatarsi brown, with a ventral row of 6 black spines on first tarsomere. ABDOMEN. Bright red with genital segments black-brown. MALE GENITALIA ( Fig. 46 ). Posterior margin of pygofer in lateral view strongly sinuate, rather angularly, roundly projecting at dorsal ½ and rather broad ventrally ( Fig. 46A, C ). Anal tube oblong, 2.9 times as long as broad, broader at apical ¾, with lateral margins sinuate and apical margin concave; lateral margins curved ventrally on apical ¾; slightly curved ventrally near base in lateral view ( Fig. 46A–B ). Gonostyli fused on slightly less than basal half of length of centroventral part and projecting posteriorly ( Fig. 46A, C ). Centroventral part broad and dorsoventrally flattened on basal half, then strongly narrowing into elongate, narrow process, strongly sinuate basally in lateral view and ending in narrow hook curved anteroventrally ( Fig. 46A, C ). Laterodorsal part of gonostyli elongate and slightly curved posteroventrally, posteriorly slightly surpassing level of centroventral part; lateral process elongate, projecting posterolaterally, slightly concave dorsally and longer than spoon-shaped process ( Fig. 46A, C–D ). Dorsal portion of phallobase with hooked process on each side, narrowing in 2 steps from base to apex, directed posterocentrally and with apex pointing dorsally ( Fig. 46E–F ). Ventral portion of phallobase elongate and narrow, curved posteroventrally ( Fig. 46E–F ). Phallus dorsoventrally flattened, medially concave, broadening towards apex and emarginate apically ( Fig. 46E–F ). Female Unknown. Distribution and biology This species is only known from a single male from Bathurst Head, a headland covered with open forest close to Cape Melville on the eastern coast of Cape York Peninsula ( Fig. 3 ), in the Cape York Peninsula Tropical Savanna bioregion. It was collected in January, nearly one century ago.