Carineta seriemaculata, SANBORN, 2020

SANBORN, ALLEN F, 2020, Eight new species and three new records of Neotropical cicadas (Hemiptera: Cicadidae) from Venezuela, Journal of Insect Biodiversity 16 (1), pp. 6-37 : 28-29

Carineta seriemaculata sp. nov. ( Fig. 7 )

urn:lsid:zoobank.org:act:3578F221-C006-49C3-B463-9D04D269C654

Type material: Holotype. “ Colón , Táchira / Venezuela 23-II-79 / J.M. Osario.” female ( FSCA).

Etymology. The name is a combination of serie – (L. series, row, succession, train) and – maculata (L. maculatus, spotted, dappled) in reference to the transverse row of spots on the posterior mesothoracic disk.

Remarks. This is an intermediate sized species of Carineta with a green head and thorax and contrasting castaneous abdomen. It has minimal thoracic markings.

Description

Ground color of head and thorax greenish tawny, head marked with castaneous and piceous, thorax marked with piceous, abdomen castaneous. Head and thorax are probably green in fresh specimens.

Head. Head not as wide as mesonotum, ground color with castaneous frons, anteromedial vertex, surrounding medial and posterior lateral ocelli and medial to eye anterior to medial angle, piceous on anterior ocelli and lateral margin of lateral ocelli, margining eye and posterior to eye. Ocelli rosaceous (medial) or ochraceous (lateral). Eyes ochraceous. Head covered with short silvery pile, longer and denser posterior to eye, long, piceous pile radiating from dorsal head. Ventral head ground color with short silvery pile and dense, long white pile. Postclypeus ground color with transverse castaneous mark on midline of posterior margin, centrally sulcate from anterior to posteroventral margin to around apex to anterior dorsum, with twelve transverse ridges, dense, short silvery pile on lateral margin, long piceous pile radiating from dorsal and ventral surfaces except on midline. Anteclypeus ground color with short, longitudinal castaneous fascia on either side of midline in middle of carina, covered with short silvery pile, radiating dense, long white pile and piceous pile. Mentum ground color with castaneous midline, labium ground color with castaneous midline and lateral fascia that is castaneous at base becoming piceous distally with castaneous tip, reaching to middle of hind trochanters. Antennal segments castaneous except ground color distal scape, proximal pedicel and distal pedicel.

Thorax. Dorsal thorax ground color covered with short silvery pile and radiating long piceous pile. Prothorax with transverse piceous spot in ambient fissure midline, castaneous fascia extending anteriorly on midline from piceous mark to level of posterior paramedian fissures. Mesonotum with piceous marks margined with castaneous surrounding submedian sigillae, at posterior angle of lateral sigillae, in scutal depressions, what appears to be area anterior to anterior arms of cruciform elevation which is concealed by dense silvery pile and anterior margin of anterior arms of cruciform elevation, the marks in the lateral sigillae and scutal depressions form a transverse series of spots for which the species is named. Metanotum castaneous with piceous mark on anterolateral corner and ground color posterior margin. Longer silvery pile on lateral and posterior mesothorax, within and radiating from wing groove, and on posterior metanotum. Ventral thoracic segments ground color except piceous basisternum 2 and basisternum 3, castaneous lateral anepimeron 2, medial epimeron 2, and trochantin 3, covered with short silvery and dense, long white pile. Sparse long piceous pile on anepisternum 2.

Wings. Fore wings and hind wings hyaline. Venation ground color becoming darker distally except piceous anal vein 2+3 and piceous spot on base. Basal cell hyaline, pterostigma present, longitudinal lines of infuscation in distal apical cells, and on marginal area of fore wings, basal membrane of fore wing grayish. Hind wing venation ground color becoming darker distally, castaneous spot on base of anal veins 2 and 3, anal vein 3 short, about one quarter as long as anal vein 2. Anal cell 3 and anal cell 2 along anal veins 2 and 3, anal cell 1 along anal vein 2 grayish.

Legs. Legs ground color with castaneous lateral coxae, striped femora, distal tibiae, fore leg and middle leg tarsi, and proximal pretarsal claws, pretarsal claws with piceous tips. Fore femora proximal spine largest, acutely angled to greatest degree, secondary spine almost angled, intermediate in length, tertiary spine parallel to secondary spine with slightly curved tip, all spines castaneous with piceous tips, piceous fascia connecting bases of femoral spines. Tibial spurs and tibial combs castaneous. Legs with dense shorts silvery pile on coxae, radiating long silvery pile on remaining segments. Female meracanthus broadly triangular, ground color, extending beyond posteromedial opercular margin, about as long as lateral operculum.

Opercula. Female operculum ground color with piceous spot on medial base and castaneous spot on lateral base, covered with dense, short silvery pile, radiating long silvery pile, lateral margin with rectangular lateral extension, rounded posterolateral margin and sinusoidal posterior margin forming finger-like extension posteromedially, opercula not meeting medially, reaching to middle of meracanthus medially not reaching to posterior of sternite II laterally.

Abdomen. Abdominal tergites castaneous with darker posterior margins, tergites covered with golden pile, short silvery pile on midline of tergites 2–3, denser long silvery pile on lateral tergites 2–3, long golden pile on lateral tergites 7–8. Sternites and epipleurites castaneous, covered with silvery pile. Female sternite VII with deep medial notch, open V-shaped, posterior notch extending to a point beyond arching posterolateral margin. Female abdominal segment 9 castaneous with piceous fascia an anterior dorsolateral surface, covered with short, golden pile, radiating long golden pile. Dorsal beak castaneous, longer than piceous anal styles. Posterior margin of abdominal segment 9 curved.

Genitalia. Female gonocoxite IX castaneous. Gonapophyses IX and X dark castaneous. Ovipositor sheath extends beyond dorsal beak. Long golden pile radiating from ovipositor sheath.

Male. Unknown.

Measurements (mm). N = one female. Length of body: 21.45; length of fore wing: 25.35; width of fore wing: 8.20; length of head: 3.40; width of head including eyes: 6.40; width of pronotum including suprahumeral plates: 8.00; width of mesonotum: 6.60.

Diagnosis. Carineta seriemaculata sp. nov. can be distinguished from the other known species of Carineta by having in combination hyaline wings lacking infuscation or spots on the apex, wing bases or crossveins, a lack of markings in the pronotal fissures or a large transverse mark in the pronotal ambient fissure, having a monochromatic pronotal collar, having mesothoracic markings that encircle the submedian sigillae and spots on the posterior mesothoracic disk, having a monochromatic and contrasting abdomen, and linear infuscation in the fore wing apical cells.

This new species can be distinguished quickly from the Venezuelan C. maracayensis sp. nov., C. spoliata , C. socia and C. ventrilloni by the contrasting abdomen and mesothoracic markings. The presence of mesothoracic markings also distinguish this new species from both C. gemella and C. lichiana , which also have contrasting abdominal coloration. It can be distinguished from C. viridicollis ( Germar, 1830) by the markings in the pronotal fissures, only the scutal depressions are marked on the mesothorax and this species lacks the contrasting abdominal coloration pattern seen in the new species. Carineta matura Distant, 1892 can be distinguished by the bent costal margin and piceous marks encircling both the submedian and lateral sigillae. Carineta producta Walker, 1858c has a body length greater than 30 mm with piceous pronotal markings and spots in the wings so it can be distinguished quickly even though it has a similar pattern of mesothoracic markings. Spots in the wings quickly distinguish C. basalis Walker, 1850 , C. fimbriata Distant, 1891 , C. maculosa Torres, 1948 , C. pilifera Walker, 1858b , and C. pilosa Walker, 1850 . The most similar species in Venezuela is C. crocea Distant, 1883b but it can be distinguished by its slightly smaller size (body length 19 mm), the longitudinal castaneous mark on the pronotum, the piceous spots in the anterior lateral sigillae, the single spot between the anterior arms of the cruciform elevation, and the darker ventral abdomen.

Distribution. The species is known only from the type locality in the state of Táchira in western Venezuela. The collection site is less than 10 km from the Colombian border so the species will probably be found in Colombia with further collection efforts.

Figures

Figure 7. Carineta seriemaculata sp. nov. A, holotype female habitus; B, holotype female dorsum; C, holotype female operculum; D, holotype female lateral view of genitalia; E, holotype female ventral view of genitalia. Scale bar: A, 2 cm; B, 5 mm; C, 2 mm; D–E, 1 mm.