Malagasia italivianaensis, Sanborn, 2021

Sanborn, Allen F., 2021, The cicadas (Hemiptera: Cicadoidea: Cicadidae) of Madagascar including a new tribe, five new genera, twelve new species, four new species synonymies, five revised species status, ten new combinations, new tribal assignments for four genera, one new subtribe synonymy, a checklist and key to the species, Zootaxa 4937 (1), pp. 1-79 : 51-54

Malagasia italivianaensis n. sp.

( Fig. 8 )

Type material.— Holotype. “ MADAGASCAR: Province / Fianarantsoa, Italaviana, / 35 km SSE Antsirabe / 20º 10.40’S, 47º 05.16’E // 26 June—6 July 2003 // California Acad of Sciences / coll: M. Irwin, R. Harin’Hala / malaise trap in Uapacca / forest elev 1360 m / MA-24-20 // CASENT / 8133209” male ( CASC) (CASTYPE number 20147) . Paratype. “ MADAGASCAR: Province / Fianarantsoa, Italaviana, / 35 km SSE Antsirabe / 20º 10.40’S, 47º 05.16’E // 27 June—11 July 2004 // California Acad of Sciences / coll: M. Irwin, R. Harin’Hala / malaise trap in Uapacca / forest elev 1360 m / MA-24-50 // CASENT / 8133219” male ( AFSC)

Etymology.—The name is a combination of italiviana – for the location of origin and –ensis (L. suffix denoting place) in reference to the known distribution of the species.

Description

Body tawny marked with piceous and castaneous, body covered with silvery pile, denser on abdominal tergites.

Head

Head wider than mesonotum, ground color with piceous transverse fascia extending from junction of anterior eye and posterolateral vertex to enclose anterior lateral ocelli, second transverse fascia extending from posteromedial eye expanding anteriorly to fuse with anterior transverse fascia along medial lateral ocelli, ground color on posterior cranial depression and posterior epicranial suture, piceous forming V-shaped mark from posterior of median ocellus to anterior frons, mark expanding to cover most of frons in paratype, anterior margin of supra-antennal plate piceous, ground color posterior to eye. Ocelli red, eyes dark castaneous. Dorsum with short silvery pile, denser and slightly longer posterior to eye. Lorum and gena piceous with ground color margin, covered with short silvery pile and radiating long silvery pile. Postclypeus ground color, piceous on dorsal surface except along frontoclypeal suture, piceous triangular mark on either side of central sulcus on anteroventral surface at apex, piceous on either side of sulcus across posterior three transverse grooves medially, marks expanding and connecting in paratype, paratype with piceous lateral margin, eight transverse grooves on ventral surface. Anteclypeus ground color with piceous on either side of middle carina, posterior three quarters of carina piceous, expanding to almost all of carina in paratype, covered with dense, short silvery pile. Mentum and labium ground color medially, piceous laterally and distally, radiating long silvery pile, reaching to junction of posterior hind coxae and hind trochanters. Antennal segments piceous except ground color annular mark on distal scape.

Thorax

Pronotum ground color, medial disk piceous, extending posteriorly along midline to posterior ambient fissure, small ground color mark in middle in holotype, sinuous piceous mark between anterior paramedian and lateral fissures, connected to U-shaped mark extending posteriorly to ambient fissure and recurving to posterior mark on medial disk, irregular piceous mark in medial lateral disk, piceous mark on anterior lateral disk extending onto pronotal collar, ambient fissure piceous. Pronotal collar ground color except for piceous mark near anteromedial corner, pronotal collar lateral angle grooved with a reddish tinge, lateral margin angled ventrally with anterior adpressed to pronotum. Pronotum and pronotal collar with sparse, short silvery pile. Mesonotum ground color darker within submedian sigillae, submedian sigillae outlined in piceous, curved piceous fascia extending from medial side of posterior submedian sigillae expanding posteriorly to enclose scutal depression crossing anterior arm of cruciform elevation expanding across posterior mesonotum and anterolateral cruciform elevation, piceous fascia along medial side of lateral sigillae not reaching posterior in holotype, piceous fascia along all but anterolateral lateral sigillae, anterior mark extending to lateral margin, all marks fusing in paratype, irregular mottling of lateral sigillae where muscles attach internally, cruciform elevation with small piceous fascia on posterior midline and piceous posterior, slight reddish tinge in holotype. Dorsal mesonotum with short silvery pile, denser long silvery pile between anterior arms of cruciform elevation, between anterior and posterior arms of cruciform elevation, on posterior mesonotum, and in wing groove. Metanotum piceous with ground color posterior margin, short silvery pile on posterior metanotum. Ventral thoracic segments ochraceous except piceous medial and lateral basisternum 2, medial anepisternum 2, lateral trochantin 2, lateral anepimeron 2, anterior and lateral meron 2, medial trochantin 3, and medial basisternum 3, covered with short silvery pile, radiating sparse, long silvery pile.

Wings

Fore wings and hind wings hyaline, milky when viewed at an angle, with eight and six apical cells respectively. Venation ground color becoming darker distally, except reddish costal margin and radius & subcostal vein to node, piceous at base along anterior basal cell, castaneous arculus extending onto proximal median vein, piceous spot on base, and piceous anal vein 2 + 3. Basal cell about five times longer than broad, infuscated distally. Pterostigma present, extending to radial crossvein. Spot of infuscation in distal clavus. Basal membrane of fore wing light gray tinged with red and piceous posterior margin. Hind wing venation ground color becoming darker distally, anal vein 2 castaneous, anal vein 3 piceous, anal vein 3 strongly curved to wing margin. Basal plaga, anal cell 3 along anal vein 3, anal cell 2 along anal veins 2 and 3, and anal cell 1 along proximal anal vein 2 light gray, gray margined with infuscation in anal cell 3, additional infuscation at base of anal cell 3.

Legs

Legs ground color with reddish tinge, coxae with piceous fasciae surrounding reddish areas anteriorly and laterally, trochanters piceous anterodorsally, castaneous posteriorly, femora striped with castaneous, posterior fore femur dark castaneous, fore tibiae castaneous with darker proximal region and short ground color fascia proximomedially, middle tibiae ochraceous striped with castaneous and castaneous distally, hind tibiae ochraceous, fore and middle leg tarsi piceous, hind tarsi ground color centrally, pretarsal claws castaneous with piceous tips. Anterior femora with angled, finger-like primary spine, longest, secondary spine roughly triangular with broad base and curved tip, upright, spines castaneous, lighter centrally. Tibial spurs and tibial comb castaneous. Coxae with short silvery pile, remaining segments radiating long silvery pile. Male meracanthus an elongated triangle, curved laterad, ochraceous with piceous base, reaching anterior of sternite II.

Operculum

Male operculum ochraceous, lateral base piceous with ground color mark posterolaterally, roughly rectangular with posteromedial extension, angled very slightly mediad, lateral margin straight, posterior margin straight curving to form approximate right angles with medial and lateral margins, not reaching to anterior of sternite II, straight medial margin reaching to lateral extension of meracanthus, covered with short silvery pile.

Abdomen

Abdominal tergite 1 piceous with ground color lateral margin, tergite 2 piceous with lighter dorsal midline and dorsoposterior margin, margin piceous in paratype, tergites 3–7 dark castaneous with lighter posterior margin, tergite 8 dark castaneous with lighter dorsal and lateral regions, tergites covered with short silvery pile, longer silvery pile radiating from tergite 8. Timbal cover absent, timbal completely exposed, with five ribs. Sternite I piceous, sternite II piceous with ground color posterolateral margin, sternites III–V ground color with transverse castaneous fascia across midline and castaneous spot on lateral margin, marks fuse in sternite VI in holotype, V and VI in paratype, sternite VII castaneous with ground color anterolateral margins, sternites covered with short silvery pile, radiating longer pile. Male sternite VIII ground color anterolaterally, castaneous ventrally and posterolaterally, radiating long silvery pile, U-shaped notch when viewed from posterior. Epipleurites ground color dark castaneous anterolateral corner, covered with short, silvery pile.

Genitalia

Male pygofer dark castaneous margined with ground color, distal shoulder with rounded terminus, forming an open U-shape on each side of anal styles when viewed from posterior, dorsal beak elongated triangle, curved ventrally, light castaneous radiating golden pile. Upper pygofer lobe absent, pygofer basal lobes elongated, flattened with triangular tip, covering more than half of ventral pygofer space. Anal styles and anal tube dark castaneous margined with ground color. Uncus piceous, elongated, flattened, narrowing distally to rounded terminus, lateral flange with straight margin, about half uncal length. Aedeagus tubular with ochraceous terminal membrane and single curved extension.

Female is unknown.

Measurements (mm).—N = 2 males, mean (range). Length of body: 16.18 (15.90–16.45); length of fore wing: 20.55 (20.30–20.80); width of fore wing: 7.10 (7.00–7.20); length of head: 2.50 (2.405=–2.60); width of head including eyes: 5.23 (5.15–5.30); width of pronotum including suprahumeral plates: 6.25 (6.10–6.40); width of mesonotum: 5.05 (5.00–5.10).

Diagnosis.—This new species is the smallest (body length about 16 mm, wingspan about 57 mm) of the known species of Malagasia . The head and thorax heavily marked with piceous and primarily castaneous abdomen also quickly distinguishes this new species.

Distribution.—The species is only known from the type series collected in Italaviana and Fianarantsoa province, southeastern Madagascar.

Figures

FIG. 8. Malagasia italivianaensis n. sp.: A, Holotype male habitus; B, holotype male dorsum; C, holotype male timbal; D, holotype male operculum; E, holotype male lateral view of genitalia; F, holotype male posterior view of genitalia. Scale bar: A, 2 cm; B, 2 mm; C—F, 1 mm.