Carineta nigrafissura, Sanborn, 2020

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, Zootaxa 4785 (1), pp. 1-129 : 73-76

Carineta nigrafissura n. sp.

( Fig. 11 )

TYPE MATERIAL. Holotype. “ PERU / Tingo / Maria // 13-viii-60 / O. Vargas ” male ( NCSU) . Paratypes. Same data as holotype, one male ( AFSC) ; “ Peru, Tingo / Maria / Feb. 15 1981 ” one male ( AFSC) ; “ Peru, Tingo / Maria / Feb. 22 1981 ” one male ( BNSN) ; “ Pan de Azucar / Dept., Pasco, PERU / July 8–9, 1961 / F.S. Truxal ” two males ( LACM) ; “ Pan de Azucar / Dept., Pasco, PERU / July 12–13, 1961 / F.S. Truxal ” two males ( LACM) ; “ Pan de Azucar / Dept., Pasco, PERU / July 14, 1961 / F.S. Truxal ” five males ( LACM) ; “ Pan de Azucar / Dept., Pasco, PERU / July 18, 1961 / F.S. Truxal ” five males ( LACM) ; “ Pan de Azucar / Dept., Pasco, PERU / July 20, 1961 / F.S. Truxal ” three males ( LACM) ; “ Pan de Azucar / Dept., Pasco, PERU / July 29, 1961 / F.S. Truxal ” one male ( LACM) ; “ Pan de Azucar / Dept., Pasco, PERU / July 5, 1961 / F.S. Truxal ” one male ( LACM) ; “ Pan de Azucar / Dept., Pasco, PERU / July 26–27, 1961 / F.S. Truxal ” one male ( AFSC) ; “ Buena Vista / Bolivia / May 13, 1950 / L. E. Pena ” one male ( NCSU) ; “ Cristal Mayu / Bolivia / Oct. 10, 1919 / L. E. Pena ” one male ( AFSC) .

ETYMOLOGY. The name is a combination of nigra - (L. niger, black) and - fissura (L., fissura, crack, cleft) in reference to the piceous pronotal fissures in this species.

REMARKS. This is a tawny species marked with piceous and castaneous including a complete transverse fascia in the pronotal ambient fissure. It is very similar in general appearance and coloration to Herrera castanetorquata n. sp. of the Peruvian fauna but the head is not as wide as the mesonotum in this new species.

DESCRIPTION. Ground color of greenish-tawny marked with piceous and castaneous. The variability of greenish in the paratypes suggests the fresh specimens may be greener than the type series which is composed of specimens between 38 and 100 years old.

Head. Head not as wide as mesonotum, ground color with castaneous surrounding median ocellus, piceous mark posterolateral to lateral ocelli, marking larger and connected or castaneous in some paratypes, frons castaneous or piceous in some paratypes, ground color posterior to eye, castaneous along head margin in some paratypes. Ocelli ochraceous, rosaceous in some paratypes, eyes castaneous. Dorsal head covered with short golden pile and radiating dense, long piceous pile, very dense around ocelli, long silvery pile posterior to eye. Ventral head ground color. Postclypeus ground color ventrally, castaneous dorsally and within medial anterior three transverse grooves with amount of marking decreasing in the posterior grooves, centrally sulcate from anterior to posteroventral margin to apex, with ten transverse ridges, covered with short silvery pile and radiating long piceous pile, denser on dorsal surface. Anteclypeus ground color with castaneous mark on posteromedial central carina, enlarged to cover up to posterior half of carina in some paratypes. Ventral head and anteclypeus with short silvery and long white pile, radiating long piceous pile. Mentum ground color, labium ground color proximally with piceous distal region, margined proximally with castaneous, tip castaneous, reaching to hind coxae. Antennal segments castaneous with ground color distal margin of scape, proximal pedicel and distal pedicel.

Thorax. Dorsal thorax ground color. Pronotum ground color, piceous within paramedian fissure, connected across midline by castaneous fascia in some paratypes, all but middle of lateral fissure, ambient fissure between posterior lateral fissure and pronotal collar lateral angle, castaneous mark on disc from posterior lateral fissure angled towards posterior paramedian fissure, connecting fissures in some paratypes, small transverse castaneous mark on midline in posterior ambient fissure, larger or completely filling posterior ambient fissure in some paratypes, covered with short golden pile and radiating long piceous pile. Pronotal collar ground color with short golden pile, radiating long piceous pile. Mesonotum greenish-tawny, castaneous marks outlining submedian sigillae, expanding in posterior of submedian sigilla, U-shaped castaneous mark surrounding posterior lateral sigillae, J-shaped in some paratypes as entire lateral margin becomes castaneous, castaneous mark anterior to anterior arms of cruciform elevation including scutal depressions laterally, extending anteriorly along midline terminating between posterior submedian sigillae, posterior margin of mesonotum castaneous, transverse castaneous fascia on posterior cruciform elevation. Metanotum ground color. Short golden pile on mesothorax and metathorax, long silvery pile between anterior arms of cruciform elevation, posterior to anterior arms of cruciform elevation, on lateral mesothorax, posterior mesothorax, radiating from posterior wing groove, and on posterior metanotum, long piceous pile radiating from mesothorax. Ventral thoracic segments ground color covered with short silvery pile, radiating long silvery pile.

Wings. Fore wings and hind wings hyaline, with eight and six apical cells respectively. Venation ground color, becoming darker distally, except piceous proximal and castaneous distal anal vein 2 + 3, pterostigma present. Paired linear infuscation in apical cells. Wing margin infuscated, marginal area with linear infuscations appearing to extend from apical cells. Basal membrane grayish with piceous posterior margin, length of piceous distal extension variable in paratypes. Hind wing venation ground color becoming castaneous distally. Anal vein 3 about half the length of anal vein 2 with curved distal terminus. Anal cell 3 and plaga gray proximally, anal cell 2 along anal veins 2 and anal vein 3 to curve, anal cell 1 along anal vein 2 margined with gray, gray margined with infuscation. Wing margin infuscated.

Legs. Ground color except castaneous tarsi, and distal pretarsal claws, fore femora striped with castaneous in some paratypes, long silvery pile radiating from legs, long castaneous pile on fore femora and tibiae. Fore femora with proximal spine longest, forming an acute angle, secondary and tertiary spines angled slightly more than primary spine, about the same length with curved tip, and very small apical spine emerging from distal base of tertiary spine with smallest acute angle to femoral axis. Spines ground color with castaneous tip. Tibial spurs and comb castaneous. Meracanthus broadly triangular, ochraceous with castaneous mark on medial base, reaching anterior of medial opercular margin.

Opercula. Male operculum greenish-ochraceous with piceous mark on posterolateral margin, extending around posterolateral corner in some paratypes, covered with short silvery pile and radiating long silvery pile, angled mediad, lateral base bent dorsally on lateral body, lateral margin straight, curved posterolateral margin forming obtuse angle to straight posterior margin, with finger-like posteromedial extension, semicircular medial margin, not meeting medially reaching to medial meracanthus, not covering tympanum, only medial region reaching to anterior of lateral sternite II.

Abdomen. Abdominal tergites tawny, castaneous in some paratypes, tergites 3–6 with castaneous posterior margin on midline, expanding in posterior tergites, entire posterior margin of tergite 7 and 8 castaneous, entire posterior margin of tergites 3–8 castaneous in some paratypes, tergites covered with short piceous pile, short golden pile radiating from posterior margin, long silvery pile surrounding timbal cavity, long golden pile radiating from auditory capsule, lateral tergites 6–7 and all of tergite 8. Timbal exposed, white with ten long ribs and nine intercalary ribs, long piceous and silvery pile radiating from anterolateral margin. Male sternites ground color with posterior sternites 3–6 greenish, epipleurites ground color, sternites and epipleurites covered with short silvery and radiating long golden pile, very dense on midline of tergite II.

Genitalia. Male pygofer ground color with castaneous posterior, lateral castaneous spot in some paratypes, dorsal beak castaneous radiating piceous pile. Dorsal beak narrow, longer than ground color and piceous anal styles. Pygofer basal lobe less than half the length of pygofer, angled laterad at base, curving mediad with medially rounded apex radiating dense golden pile. Upper pygofer lobes adpressed to pygofer, small, knob-like, radiating dense long golden pile. Claspers small, smoothly curved medial margin forming small triangular extension dorsally, radiating long golden pile, very dense laterally. Basal lobe appendage flat, wide at base, narrowing and curving at right angle, slightly rotating along axis, extending as a sword-like structure bending near terminus and terminating in a point, distal region may be straight or cross midline in paratypes. Aedeagus tubular, dark castaneous.

Female is unknown.

MEASUREMENTS (MM). N = 10 males, mean (range). Length of body: 21.95 (21.20–23.05); length of fore wing: 26.48 (24.90–27.90); width of fore wing: 9.48 (9.15–9.90); length of head: 4.02 (3.85–4.20); width of head including eyes: 6.74 (6.50–6.95); width of pronotum including suprahumeral plates: 8.31 (7.95–8.55); width of mesonotum: 6.98 (6.70–7.25).

DIAGNOSIS. The complete transverse piceous fascia in the pronotal ambient fissure found in C. nigrafissura n. sp. distinguishes it from all other species of Carineta except C. bilineosa Walker, 1858b , C. cingenda and C. garleppi Jacobi, 1907 . The new species can be distinguished from C. bilineosa by the larger body size (> 21 mm) and wing length (> 23.5 mm), castaneous abdomen, the long piceous pile radiating from the head, the thin medial extension of the operculum rather than a large triangular operculum, and the elongated basal pygofer appendage terminating in a single point in this new species. Similarly, C. nigrafissura n. sp. can be distinguished from C. cingenda by the larger body size (> 21 mm) and wing length (> 23.5 mm), the long piceous pile radiating from the head, the transverse pronotal fascia being restricted to the ambient fissure rather than extending to cover the anterior half of the pronotal collar, and the elongated basal pygofer appendage terminating in a single point in this new species rather than the claw-like terminus of the appendage in C. cingenda . Finally, C. garleppi is a much smaller species (body length about 16 mm, fore wing length <20 mm), a longitudinal fascia on the pronotal midline, mesothoracic sigillae completely margined with piceous, a timbal with only four long ribs, with a very short, tooth-like basal pygofer lobe appendage.

DISTRIBUTION. The species is known from the type series collected in Bolivia and Peru.

Figures

FIGURE 11. Carineta nigrafissura n. sp.: A, Holotype male habitus; B, holotype male dorsum; C, holotype male timbal; D, paratype male operculum; E, holotype male lateral view of genitalia; F, holotype male posterior view of genitalia. Scale bar: A, 2 cm; B, 5 mm; C–D, 2 mm; E–F, 1 mm.