Abroma bezamahafalyensis Sanborn 2021, n. sp.
Creators: name: Sanborn, Allen F.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Abroma
Abroma bezamahafalyensis

description: Abroma bezamahafalyensis n. sp.
(Fig. 3)
Type material.— Holotype. “ MADAGASCAR: Tulear / Province, Beza Mahafaly / Reserve, Parcelle I near / research station / 2—10 April 2003 // 23° 41.19’S, 44° 35.46’E / California Acad of Sciences / colls: ME Irwin, FD Parker, / R. Harin’Hala, malaise / trap in dry deciduous forest / elev 185 m MA-02-14A-55 // CASENT 8133223” male (CASC) (CASTYPE number 20143). Paratypes. “ MADAGASCAR: Tulear / Province, Beza Mahafaly / Reserve, Parcelle I near / research station / 2—10 April 2003 // 23° 41.19’S, 44° 35.46’E / California Acad of Sciences / colls: ME Irwin, FD Parker, / R. Harin’Hala, malaise / trap in dry deciduous forest / elev 185 m MA-02-14A-55 // CASENT 8133229” one male (AFSC); “ MADAGASCAR: Tulear / Province, Beza Mahafaly / Reserve, Parcelle I near / research station / 26 Jan—1 Feb 2002 // 23° 41.19’S, 44° 35.46’E / California Acad of Sciences / colls: ME Irwin, FD Parker, / R. Harin’Hala, malaise / trap in dry deciduous forest / elev 185 m MA-02-14A-13 // CASENT 8133229” one female (CASC); “ MADAGASCAR: Tulear / Province, Beza Mahafaly / Reserve, Parcelle I near / research station / 2—10 April 2003 // 23° 41.19’S, 44° 35.46’E / California Acad of Sciences / colls: ME Irwin, FD Parker, / R. Harin’Hala, malaise / trap in dry deciduous forest / elev 185 m MA-02-14A-55 // CASENT 8133222” one female (AFSC); “ MADAGASCAR: Tulear / Province, Beza Mahafaly / Reserve, Parcelle I near / research station / 4—18 February 2003 // 23° 41.19’S, 44° 35.46’E / California Acad of Sciences / colls: ME Irwin, FD Parker, / R. Harin’Hala, malaise / trap in dry deciduous forest / elev 185 m MA-02-14A-50 // CASENT 8133212” one female (CASC); “ MADAGASCAR: Tulear / Province, Beza Mahafaly / Reserve, Parcelle I near / research station / 12—17 December 2002 // 23° 41.19’S, 44° 35.46’E / California Acad of Sciences / colls: ME Irwin, FD Parker, / R. Harin’Hala, malaise / trap in dry deciduous forest / elev 185 m MA-02-14A-43 // CASENT 8133226” one female (AFSC).
Etymology.—The name is a combination of bezamahafaly – for the type locality and –ensis (L. suffix denoting place).
Description
Head piceous marked with castaneous, thorax castaneous marked with piceous, abdomen castaneous marked with piceous or tawny marked with piceous and castaneous covered with white pile.
Head
Head wider than mesonotum, piceous with castaneous spot on anterior terminus of epicranial suture anterior arms, posterior epicranial suture castaneous, anterior mark expanding along anterior arm and fusing posterior to medial ocellus, fusing with posterior medial fascia or reduced in various paratypes, some paratypes with castaneous spot on lateral half of suture of supra-antennal plate and anterolateral vertex or castaneous supra-antennal plate. Dorsal head covered with sparse, short white, longer posterior to eye, denser in some paratypes. Ocelli red, eyes dark castaneous, ochraceous in some paratypes where cells have retracted from eye surface so they appear hollow. Ventral head piceous except castaneous ventral surface of supra-antennal plate, with long and short white pile, denser than on dorsal head. Postclypeus castaneous, weakly sulcate with 12 transverse ridges, dark castaneous dorsum and longitudinal fascia across medial transverse ridges, longitudinal fasciae absent, reduced or expanded in various paratypes, small greenish ochraceous fascia on ventral midline, postclypeus dark castaneous with medial fascia in one paratype, short white pile radiating in lateral transverse grooves and posterior margin, longer white pile radiating from ventral side. Anteclypeus piceous covered with white pile. Mentum tawny with castaneous distal mark, labium castaneous with darker lateral fascia and piceous distally and castaneous tip, rostrum radiating short white pile, reaching to posterior coxae. Antennal segments castaneous except greenish annular mark on distal scape, distal pedicel and proximal first flagellar segment.
Thorax
Pronotum castaneous with piceous anterior disk between fissures and piceous lateral disk, dark castaneous spot on midline in ambient fissure, piceous reduced or dark castaneous in some paratypes. Pronotal collar light castaneous. Pronotum with sparse short white pile, denser in some paratypes. Mesonotum castaneous with piceous submedian sigillae, mottled piceous in lateral sigillae, solid or reduced in some paratypes, piceous spot on anterolateral margin, narrow central piceous fascia intersecting transverse piceous fascia terminating on scutal depressions, reduced to spots in scutal depressions in one paratype, dark ochraceous cruciform elevation with castaneous spot on either side of midline between anterior arms, wing groove ochraceous. Metanotum ochraceous, castaneous within wing groove. Dorsum with short white pile on anterior, lateral and posterior margins, between anterior arms of cruciform elevation, between anterior and posterior arms of cruciform elevation, on posterior mesonotum, in wing groove, and on posterior metanotum, denser in some paratypes. Ventral thoracic segments castaneous, katepisternum 2 lighter, ochraceous in some paratypes, basisternum 2 with piceous margin, completely piceous medially in some paratypes, greenish margins along coxae, piceous medial basisternum 3, covered with dense white pile.
Wings
Fore wings and hind wings hyaline, fore wings with eight, hind wings with five or six apical cells in holotype, some paratypes with different number of apical cells in hind wings, others with six cells on both sides. Venation dark ochraceous proximally, becoming castaneous distally, piceous spot on wing base, ochraceous costal margin and radius & subcostal vein, cubitus posterior + anal vein 1 and anal vein 2 + 3, piceous fascia along base of radius & subcostal vein in proximal basal cell. Basal cell hyaline. Pterostigma present. Basal membrane of fore wing gray. Hind wing venation similar to fore wing with ochraceous cubitus posterior, anal vein 1, anal vein 2 and anal vein 3. Anal cell 3 margin almost to distal cell, anal cell 2 along anal veins 2 and 3, and anal cell 1 along anal vein 2 light gray, anal cell 3 infuscated within gray margin, infuscation absent in some paratypes.
Legs
Legs castaneous, coxae and femora striped with dark castaneous, trochanters dark castaneous proximally and distally, middle and hind distal femora and proximal tibiae ochraceous, middle and hind leg tibiae and tarsi lighter than fore leg, tibial spurs and comb castaneous with dark castaneous tips. Fore femora with primary spine longest, angled to femoral axis, secondary spine angled less than primary spine, tertiary spine smallest upright, spines castaneous. Tarsi castaneous, darker distally. Pretarsal claws castaneous with darker tips. Meracanthus broadly triangular with curved lateral margin, ochraceous margins and distal surface with castaneous base, reaching just past anterior margin of medial operculum. Legs with short white pile, very dense in some paratypes, and radiating long golden pile.
Operculum
Male operculum curving mediad, ochraceous with castaneous medial base and piceous lateral base, lateral margin straight, dark castaneous, posterolateral and posterior margin curved reaching to anterior sternite II laterally and posterior sternite II medially, semicircular medial margin, medial margins not reaching to sternite I medially in holotype, not covering tympanal cavity in paratypes, covered with white pile, radiating long golden pile from opercular margin, denser in some paratypes. Female operculum colored as male, lateral margin short, posterior margin forming oblique angle with lateral margin, medial margin short, not reaching to middle of meracanthus, posterior margin reaching posterior sternite II, covered with sparse, short white pile.
Abdomen
Male abdominal tergites 1 and 2 piceous with castaneous across posterior midline and dorsolateral mark, tergites 3–8 castaneous with darker midline, lighter on posterior dorsolateral surfaces, ochraceous membrane between tergites, tergites covered with short white pile, dense laterally. Timbal cover absent, timbal completely exposed, with 12 long ribs. Male sternite I piceous with ochraceous posterior margin, sternite II piceous, auditory capsule piceous, sternites III–VII dark castaneous medially, castaneous laterally, greenish ochraceous posterolaterally, sternites III and VII with greenish ochraceous posterior margin. Epipleurites castaneous. Sternites and epipleurites with short white and radiating long white pile. Sternite VIII castaneous, radiating white pile, denser laterally and posteriorly, slightly curved, shallow notch when viewed from posterior. Female tergites, sternites and epipleurites similarly colored to male, tawny replacing castaneous in one paratype, sternites completely dark castaneous in one paratype. Female sternite VII castaneous, darker medially, with single, deep, open U-shaped notch, posterior margin on either side of notch smoothly curved to lateral corner. Female abdominal segment 9 castaneous, with dark castaneous anterolateral margin extending onto dorsolateral surface not reaching posterior margin, dorsal regions castaneous, dorsal beak castaneous curving dorsally, segment 9 covered with short white pile, radiating long white pile from lateral and dark ochraceous ventral regions. Dorsal beak \extending slightly beyond castaneous anal styles, anal tube ochraceous. Posterior margin of abdominal segment 9 sinuate.
Genitalia
Male pygofer castaneous, ventral margin and dorsal surface darker, posterior margin lighter, distal shoulder undeveloped, reflexed medially, dorsal beak broadly triangular, pygofer with short white pile ventrally and laterally. Upper pygofer lobe small, angled mediad, pygofer basal lobes elongated, adpressed to lateral pygofer, distal terminus semicircular, angled mediad, radiating dense golden pile. Anal styles dark castaneous radiating short golden pile, anal tube greenish ochraceous. Uncus absent. Claspers broad, curving distally to meet under aedeagus, smoothly curved anterolateral margin terminating in lateral point, castaneous, darker medial margin and point. Aedeagus large, tubular, castaneous with conjunctiva claws separated by ochraceous membrane, restrained by claspers.
Female gonocoxite IX and gonapophysis VII castaneous, gonapophysis IX castaneous with piceous tip, gonapophysis X dark castaneous. Ovipositor sheath extending well beyond dorsal beak. Long golden pile radiating from ovipositor sheath.
Measurements (mm).—N = 3 males or 3 females, mean (range). Length of body: male 11.77 (10.80–12.50), female 13.62 (12.90–14.35); length of fore wing: male 14.55 (13.85–15.05), female 16.53 (16.10–16.95); width of fore wing: male 5.02 (4.40–5.45), female 5.87 (5.35–6.35); length of head: male 2.40 (2.20–2.65), female 2.53 (2.40–2.65); width of head including eyes: male 4.25 (4.00–4.40), female 4.67 (4.40–4.90); width of pronotum including suprahumeral plates: male 4.40 (3.80–4.80), female 4.93 (4.80–5.10); width of mesonotum: male 3.93 (3.60–4.15), female 4.47 (4.20–4.80).
Diagnosis.—This new species can be distinguished from the remaining Madagascar species of Abroma except for A. falcata n. sp. by the small body size. It can be distinguished from A. falcata n. sp. by the reduced dorsal piceous markings, the expanded abdominal piceous markings, timbal with ten ribs, the narrow operculum exposing most of the tympanal cavity, and the claspers that are semicircular ventrally with a small, anterolaterally oriented lateral point in that new species.
Distribution.—The species is only known from the type series collected in Tulear Province, southwestern Madagascar.
description: Published as part of 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, pp. 1-79 in Zootaxa 4937 (1) on pages 31-34, DOI: 10.11646/zootaxa.4937.1.1, http://zenodo.org/record/4559438