Tarehylava avymaina, Stroiński, 2021

Stroiński, Adam, 2021, Tarehylava, a new planthopper genus from Madagascar (Hemiptera: Fulgoromorpha: Ricaniidae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 61 (1), pp. 329-340 : 336-338

Tarehylava avymaina sp. nov.

( Figs 1–7 , 11–63 )

Type material. Hඈඅඈඍඒඉൾ: ♀, [ MADAGASCAR: Toliara / Prov, Lake Ranobe, / 23°02.468’ S, 43°36.607’ E / elev 30 m, 25-31 April 2003 / California Acad. of Sciences], [colls: Frontier Wilderness / Project, malaise trap, spiny/forest/ tamarind forest near / lake edge code: MGF 066], [ CASENT 3008293] ( CAS). Pൺඋൺඍඒඉൾඌ: 1 ♀, [ MADAGASCAR: Toliara Prov. / Parc National de Tsimanampetsotsa, / Forêt de Bemanateza, 20.7 km / 81° E Efoetse, 23.0 km 131°SE / Beheloka, 22-26 March 2002], [23°59’32”S 43°52’50” E / Fisher, Griswold et al. / California Acad of Sciencies / malaise trap - in spiny forest / thicket, elev 90 m BLF 6257], [ CASENT / 8078826] ( CAS); 1 ♀, [ MADAGASCAR:Tulear / Province, Mikea Forest, / NW of Manombo, elev. 37 m, / 22º54.80 S 43º28.93′E / 6–19 August 2002], [coll: M. Irwin, R. Harin’Hala / California Acad of Sciencies / malaise trap, spiny forest MA-02-18B-30], [ CASENT / 8108670] ( CAS); 1 ♀, [ MADAGASCAR: Tulear / Province, Beza Mahafaly / Reserve, Parcelle 1 near / research station / 10 March – 21 April 2003, 23°41.19’S 44°35.46’E], [California Acad of Sciences / coll. R. Harin’Hala, malaise / trap in dry deciduous forest / elev 165m, MA-02- 14A-56], [ CASLOT 038523] ( MZPW).

Diagnosis. See Diagnosis for the genus.

Description. Measurements and shapes. Total length 0.84–0.90 cm. Vertex: A p /B = 0.48–0.51; anterior margin strongly arcuate; posterior margin weakly arcuate. Frons: C/E = 0.41–0.47; D/E = 0.64–0.67. Pronotum: F/B = 1.20–1.47; anterior margin strongly arcuate, in median portion flattened with small concavity medially; posterior margin weakly concave ( Fig. 12 ). Mesonotum: G/F+B = 0.98–1.03, G/F =1.64–1.87, proportion G/H = 0.68–0.71. Tegmina: I/J = 2.77–2.90.

Female terminalia. Anal tube: apical margin (in dorsal view, Figs 45 , 56 ) arcuate with small concavity medially; ventral margin (in lateral view, Figs 42 , 57 ) almost straight.

Coloration (specimens originally preserved in alcohol). General coloration from light brown to brown with irregular dark patches. Female abdominal tergites, pregenital sternite and anal tube all light brown. Sternites brown with light narrow band alongside posterior margin; gonoplac dark brown with brown-yellow posterior margin.

Etymology. The specific name avymaina is a combination of two Malagasy words: “avy” (= from) and “maina” (= dry). It refers to the distribution of the species in a dry region of southwestern part of Madagascar, covered with spiny forests. Distribution. Madagascar, Atsimo-Andrefana region: Toliara I, Toliara II and Betioky-Atsimo districts ( Figs 8–10 ).

Figures

Figs 1–10. Tarehylava avymaina gen. & sp. nov. 1 – habitus, lateral view; 2 – same, dorsal view; 3 – anterior part of body, dorsal view; 4 – same, ventral view; 5 – tegmen, outline; 6 – posterior part of tegmina, dorsal view; 7 – hind wing; 8– Madagascar, physical map, with area enclosed by the black square enlarged in Figs 9 and 10; 9 – distribution of T. avymaina gen. & sp. nov. in Madagascar (red points); 10 – same, ecoregions.

Figs 11–16. Tarehylava avymaina gen. & sp. nov., SEM micrographs. 11– anterior part of body, dorsal view; 12 – vertex and pronotum, dorsal view; 13 – anterior part of body, dorso-lateral view; 14 – lateral lobes of pronotum, frontal view; 15 – frons and clypeus, frontal view; 16 – same, oblique dorso-frontal view.

Figs 17–22. Tarehylava avymaina gen. & sp. nov., SEM micrographs. 17 – connection of frontal carinae, frontal view; 18 – same, fronto-lateral view; 19 – upper part of head, lateral view; 20 – lower part of frons and clypeus, frontal view; 21 – lower parts of head and pronotum, lateral view; 22 – antenna, dorso-frontal view.

Figs 23–28. Tarehylava avymaina gen. & sp. nov., SEM micrographs. 23 – apex of antenna; 24 – antennal plate organs; 25 – hing leg, ventral view; 26 – distal part of hind tibia and tarsus, ventral view; 27–28 – apical part of hind tibia and basimetatarsomere, ventral view.

Figs 29–34. Tarehylava avymaina gen. & sp. nov., tegmen, SEM micrographs. 29 – lateral view; 30 – tegmina, dorsal view; 31 – median part of tegmen; 32 – basal part of tegmen; 33 – apical part of costal area and costal cell; 34 – clavus.

Figs 35–40. Tarehylava avymaina gen. & sp. nov., tegmen, SEM micrographs. 35 – clavus, dorsal view; 36 – apical part of tegmina, dorsal view; 37 – apex of clavus and margin between coriaceous and membranous parts of tegmen; 38–40 – details of venation of membranous part.

Figs 41–46. Tarehylava avymaina gen. & sp. nov., female abdomen and terminalia, SEM micrographs. 41 – lateral view; 42 – anal tube, lateral view; 43 – gonoplac, lateral view; 44 –dorsal view; 45 – anal tube, dorsal view; 46 – ventral view.

Figs 47–52. Tarehylava avymaina gen. & sp. nov., female terminalia,SEM micrographs. 47 – pregenital sternite,ventral view; 48 – terminalia,ventral view; 49 – apex of gonoplac, dorsal view; 50 – terminalia, dorso-lateral view; 51 – posterior margin of gonoplac; 52 – teeth on posterior margin of gonoplac.

Figs 53–63. Tarehylava avymaina gen. & sp. nov., female abdomen and terminalia. 53 – abdomen, dorsal view; 54 – same, ventral view; 55 – same, lateral view; 56 – anal tube, dorsal view; 57 – same, lateral view; 58 – pregenital sternite; 59 – gonoplac, lateral view; 60 – gonapophysis VIII and endogonocoxal process, lateral view; 61 – gonapophyses IX and gonospiculum bridge, dorsal view; 62 – same, lateral view; 63 – spermatheca. Figs 53 – 55 were taken of the dry abdomen, Figs 56–62 after its maceration in KOH.