Carineta bitorquata Sanborn 2020, n. sp.
Creators: name: Sanborn, Allen F.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Carineta
Carineta bitorquata

description: Carineta bitorquata n. sp.
(Fig. 7)
TYPE MATERIAL. Holotype. “ Bagua, Peru / Jun. 1954 / W.E. Ebeling // U.C.L.A. COLL. / Accessioned / L.A.C.M. 1965 // LACM ENT 403778 ” one male (LACM). Paratype. Same data as holotype, one male (AFSC).
REMARKS. This new species is one of a few species of Carineta to have large opercula including C. basalis, C. carayoni Boulard 1986c, C. castaneopercula n. sp. and C. crumena Goding, 1925. The distinctive two colored pronotal collar quickly distinguishes this new species from the all other species with large opercula except C. carayoni which is larger, stouter, differs in the fore leg spines, opercula and genitalia. The ochraceous pronotal disk and the contrasting colors on the pronotal collar are distinct from all other Peruvian Carineta species.
ETYMOLOGY. The name is a combination of bi - (L., bi -, two) and - torquata (L., torquatus, adorned with a necklace or collar) in reference to the two colored pronotal collar of the species.
DESCRIPTION. Ground color of head and thorax tawny and ochraceous marked with piceous and castaneous, abdomen castaneous.
Head. Head not as wide as mesonotum, tawny with ochraceous anteromedial vertex, supra-antennal plate, and triangular mark on posterior head between lateral ocelli eye, posterior of eye castaneous margined with piceous. Ocelli rosaceous, eyes castaneous. Head covered with short silvery pile, longer silvery pile posterior to eye. Gena castaneous, lorum castaneous with dark ochraceous anterolateral corner, covered with long silvery pile. Postclypeus dark ochraceous with castaneous dorsal surface and margins, centrally sulcate ventrally reaching to apex, with ten transverse ridges, short silvery pile on lateral margin. Anteclypeus castaneous with long silvery pile. Mentum light castaneous with ochraceous midline, labium light castaneous with darker lateral distal quarter with dark castaneous tip reaching to middle of abdominal sternite IV. Scape ochraceous, remaining antennal segments light castaneous.
Thorax. Dorsal thorax tawny. Pronotum ochraceous disk and anterior margin, tawny fascia on midline expanding laterally to posterior paramedian fissure and anteriorly, continuing posterior to anterior margin expanding on anterior of lateral disk before continuing around ambient fissure to surround the disk, curved piceous mark in lateral disk, anterior middle disk piceous, mark extending across disk to about middle where it extends medially and laterally, lateral extension bent posteriorly forming a Z-shape on disk, medial extension attaching to piceous mark that surrounds margin of posterior half of disk, piceous and castaneous mark anterolateral median disk reaching about three-fourths length, connects to piceous mark in posterior paramedian fissure that connects in middle to mark that surrounds posterior middle disk, short silvery pile on disks, denser in fissures, long piceous pile radiating from dorsolateral surface. Pronotal collar tawny with ochraceous posterior margin extending from half length of pronotal collar lateral angle across midline, covered with short silvery pile and radiating long piceous pile laterally. Mesonotum tawny, castaneous parapsidal suture, castaneous on lateral margin of lateral sigilla, anterolateral corner of mesonotum, lateral margin and a curved mark along anterior arms of cruciform elevation between the lateral sigillae, marks more obvious and submedian sigillae castaneous in paratype, cruciform elevation dark ochraceous with castaneous lateral surfaces, completely castaneous in paratype, wing groove tawny. Metanotum tawny, lighter laterally. Short silvery pile on lateral and posterior mesonotum, longer silvery pile laterally, posteriorly, between anterior arms of cruciform elevation, and on lateral cruciform elevation, within and radiating from posterior wing groove, and on lateral metanotum, long piceous pile radiating from mesonotum. Ventral thoracic segments tawny, ochraceous spot on posterior katepisternum 2, paratype sternites lighter, covered with long white and long piceous pile.
Wings. Fore wing and wings hyaline. Venation tawny proximally except castaneous anterior to basal cell, arculus, majority of proximal median vein 3+4, spot on distal median vein to node and crossveins and piceous posterior anal vein 2+3, distal veins castaneous. Basal cell and proximal clavus clouded, pterostigma present extending beyond radial crossvein, basal membrane of fore wing grayish with darker posterior margin. Hind wing venation ochraceous except castaneous veins separating and ambient vein of apical cells 1–3 and castaneous anal vein 2. Anal cell 3 and anal cell 2 along anal veins 2 and 3, anal cell 1 along anal vein 2 grayish, infuscation surrounding margins of gray in anal cell 2.
Legs. Legs tawny becoming ochraceous in holotype hind and middle legs and paratype, castaneous marks on lateral coxae, distal trochanter margins, femora striped with castaneous, annular marks at one third length and distal margin of fore tibiae castaneous, lateral mark on proximal middle tibiae with distal annular mark in both middle and hind tibiae, metatarsus light castaneous proximally, distal half of pretarsus dark castaneous, pretarsal claws dark castaneous at base with piceous tips. Fore femora proximal spine largest, forming very acute angle to femur, secondary spine almost upright or intermediate length, small curved and angled tertiary spine and small bump for apical spine, all spines castaneous with piceous tips. Tibial spurs and combs castaneous with piceous tips. Legs radiating long silvery pile. Meracanthus short, broadly triangular, ochraceous, reaching over anterior opercular margin.
Opercula. Male operculum large, inflated, with parallel medial and lateral margins at base, with roughly semicircular posterior margin, tawny with ochraceous margin, radiating silvery pile, denser on margin, medial margin straight, curved to medial base, not meeting medially extending to extension of sternite I, reaching posteriorly to middle of sternite IV.
Abdomen. Abdominal tergites castaneous covered with silvery pile, long silvery pile radiating from dark castaneous auditory capsule. Timbal exposed, white with eight long and seven intercalary ribs. Male sternite I, II and VII castaneous, sternite III dark testaceous with triangular castaneous mark extending from posterior midline, sternites III–VI ochraceous with transverse castaneous posterior margin, castaneous mark extends on anteriorly midline in sternites IV–VI, sternite VIII castaneous with ochraceous posterior ventrolateral surface and posterior margin, sternite VIII with smoothly curved V-shaped notch posteriorly, long silvery pile radiating from sternites. Epipleurites castaneous with radiating long silvery pile.
Genitalia. Male pygofer castaneous with lateral region and upper pygofer lobe, with short silvery pile dorsally, radiating long silvery pile. Dorsal beak an elongated triangle, not twice as long as anal styles. Pygofer basal lobe extending more than half the length of pygofer, angled mediad with rounded apex, radiating dense golden pile. Upper pygofer lobes ochraceous, short, finger-like, angled mediad. Claspers castaneous, recurved medially with dense golden pile. Basal lobe appendage approximately rectangular, flat extension mediad with piceous spine extending from anterior base about half as long as rectangular region, not crossing midline. Aedeagus tubular, castaneous.
Female is unknown.
MEASUREMENTS (MM). N = two males, mean (range). Length of body: 21.10 (21.00–21.20); length of fore wing: 28.35 (27.95–28.75); width of fore wing: 9.50 (9.40–9.60); length of head: 3.13 (3.10–3.15); width of head including eyes: 6.03 (6.00–6.05); width of pronotum including suprahumeral plates: 9.35 (9.30–9.40); width of mesonotum: 7.38 (7.05–7.70).
DIAGNOSIS. Similar large opercula of the male are found within the genus only in C. basalis, C. carayoni, C. castaneopercula n. sp., and C. crumena. The two-colored pronotal collar and shape of the male opercula distinguish the new species from all species with large opercula.Additionally, this new species can be distinguished from C. basalis by the piceous fascia on the dorsal pronotal midline and the hyaline fore wings in C. basalis. Carineta crumena can be distinguished by the lack of bronzing in the wings, the lack of wing maculation, the smaller body length (20 vs. 25 mm), the piceous fascia on the dorsal pronotal midline, the basal lobe appendage which is a short, spine-like appendage reaching only the length of the basal pygofer lobe, and the smaller opercula that reach only to the middle of sternite IV. The new species has significantly less marking and lacks the very large castaneous opercula found in C. castaneopercula n. sp. This new species can be quickly distinguished from the other species with a spot of infuscation in the hind wing by a combination of the bronzed fore wings, the infuscation on the fore wings radial and radiomedial crossveins and the large opercula.
The most similar species is C. carayoni but it can be distinguished by the larger body size, the more stout body, the infuscation in the fore wing apical cells and along the ambient vein in both fore and hind wings, the opercula are larger and bend over the lateral side of the body, the four fore femur spines, and the pygofer basal lobe appendage expands to terminate with four points and does not crossing the midline.
Species like C. aestiva Distant, 1883a, C. genitalostridens Boulard, 1986c and C. urostridulens Boulard, 1986c that have the bicolored pronotal collar have a very large posterior marking on the pronotum and opercula that do not cover the tympanal cavity. The shapes of the basal lobe appendage are also significantly different in all species.
DISTRIBUTION. The species is known only from the type series collected in Bagua, Peru.
description: Published as part of Sanborn, Allen F., 2020, The cicadas (Hemiptera: Cicadidae) of Peru including the description of twenty-four new species, three new synonymies, and thirty-seven new records, pp. 1-129 in Zootaxa 4785 (1) on pages 57-60, DOI: 10.11646/zootaxa.4785.1.1, http://zenodo.org/record/3862255