Calyria uncinata, SANBORN, 2020

SANBORN, ALLEN F., 2020, Two new species of Neotropical cicadas (Hemiptera: Cicadidae: Cicadettinae) from southeastern Brazi, Journal of Insect Biodiversity 19 (1), pp. 14-23 : 15-17

Calyria uncinata sp. nov. ( Fig. 1 )

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Type material: Holotype. “ BRAZIL / Minas Gerais / Serro do Cipó / VII.5.75 // D. S. Verity / collector // LACM ENT 403599 ” male ( LACM).

Etymology. The name uncinata (L. uncinata , hooked) is in reference to the characteristic hook-like extensions of the pygofer of this new species.

Remarks. The five hind wing apical cells, the inflated abdomen with a dorsal ridge, the shape of the pygofer, and the coloration quickly distinguish this small species from other Brazilian cicadas.

Description

Ground color dark castaneous marked with piceous and ferruginous.

Head. Head slightly wider than mesonotum, piceous except dark castaneous spot on anteromedial vertex and anterolateral supra-antennal plate, short silvery pile on dorsum, longer posterior to eye. Ocelli rosaceous, eyes castaneous. Gena piceous except castaneous margin along lorum, lorum dark castaneous except lighter anterior margin, covered with short silvery pile and radiating long silvery pile. Postclypeus piceous dorsally and medially extending between medial transverse ridges, with longitudinal tawny fascia on anteroventral midline to apex and dark castaneous posteroventral margin, lateral surfaces and transverse ridges. Postclypeus with eight transverse ridges. Anteclypeus castaneous medially, piceous laterally. Ventral head, postclypeus and anteclypeus covered with short and radiating long silvery pile. Mentum castaneous, labium castaneous with piceous tip, long silvery pile on tip, reaching to hind coxae. Antennal segments piceous.

Thorax. Dorsal thorax dark castaneous marked with piceous. Prothorax with broad piceous fascia on either side of midline expanding anterolaterally into triangular mark and curving posterolaterally anterior to ambient fissure to posterior lateral fissure, dorsolateral scute heavily mottled with piceous, lateral scute piceous anteriorly and laterally, remaining scute mottled with piceous, short silvery pile on disk and in fissures, pronotal collar dark castaneous with short silvery pile on lateral angle and lateral margin. Mesonotum dark castaneous, sigillae piceous, piceous mark on midline expanding anterior to cruciform elevation and enclosing scutal depressions, arms of cruciform elevation dark castaneous, piceous between arms anteriorly and laterally, wing groove piceous medially, castaneous posteriorly with tawny posterior margin. Metanotum dark castaneous with piceous anteromedial corner. Silvery pile on mesonotum on disk, denser laterally, between anterior arms of cruciform elevation, in wing groove, and on posterior metanotum. Ventral thoracic segments castaneous except piceous basisternum 2, lateral episternum 3 and tawny posterolateral katepimeron 2, covered with short and long silvery pile.

Wings. Fore wings and hind wings hyaline with eight and five apical cells respectively. Venation tawny at base, becoming castaneous distally, with dark castaneous along basal cell, anterior arculus, base of cubitus anterior, distal costal margin and radius & subcostal vein at node, and piceous posterior margin of anal vein 2 + 3. Basal cell hyaline. Infuscation on proximal end of radius anterior 2 between split of radius anterior and radiomedial crossvein. Basal membrane of fore wing gray with darker posterior margin. Venation of hind wing tawny at base becoming castaneous distally except piceous anal vein 1, anal vein 3 with curved distal terminus, less than half as long as anal vein 2. Anal cell 3 grayish with infuscation distally, grayish along anal vein 3 in anal cell 2 margined with infuscation, infuscation continues along anal vein 2 in anal cell 2.

Legs. Legs dark castaneous, coxae with piceous fascia on base, trochanters lighter, femora striped with light castaneous, fore femora striped with piceous distally, tibiae and tarsi very dark castaneous, tarsi piceous proximally and distally, tarsal claws piceous proximally, dark castaneous distally. Fore femora with four angled dark castaneous spines, spines become smaller, secondary spine most erect, primary and tertiary spines parallel, distal spine angled most, primary and apical spine straight, secondary and tertiary spines curved at tip. Tibial spurs and tibial combs castaneous. Meracanthus tawny with castaneous base, pointed, curved mediad, extending about half the length of male sternite I.

Opercula. Male operculum tawny with castaneous base, straight lateral margin angled mediad curving to straight posterior margin straight to curved medial end reaching medial lateral meracanthus, concave anteromedial margin, not covering tympanal cavity, covered with long silvery and long white pile, with long silvery pile radiating from edge.

Abdomen. Abdominal tergites dark castaneous on dorsal midline and anterior dorsolateral tergites, remaining segment castaneous with ferruginous posterior margin. Tergite 2 with piceous anterior margin and auditory capsule, tergites 3–7 with piceous spot laterally, tergite 8 piceous anteriorly. Timbal exposed, white with castaneous ribs, eight long ribs and seven intercalary ribs. Tergites with short silvery pile, short white pile on posterolateral tergite 1, dorsolateral and posterolateral tergite 2, dorsal auditory capsule, dorsolateral tergites 3–5, and posterodorsal tergite 8, longer white pile radiating from lateral tergites 7–8. Male sternites castaneous, with short silvery pile and radiating long white pile, sternite VII with transverse posterior margin indented at midline, sternite VIII castaneous, lighter posteriorly, elongated with small notch on midline between semicircular posterior margins on either side, covered with short silvery and short white pile, radiating long white pile. Epipleurites castaneous, epipleurites 6 and 7 with piceous mark on anteromedial margin.

Genitalia. Male pygofer dark castaneous, piceous dorsoanteriorly and posterior on midline including dorsal beak, lighter castaneous posterolaterally, tawny ventral margin and including ventral upper pygofer lobe, anal styles dark castaneous with piceous margin. Distal shoulder short, reaching only to base of anal tube, slightly curved with piceous ventroposterior margin and short white pile. Pygofer basal lobe thin, about as wide as pygofer margin with expanded rounded terminus, adpressed to pygofer, reaching to base of upper pygofer lobe, curving laterad at base. Upper pygofer lobes elongated, flattened, rectangular at base, ventral extension about half the length of dorsal extension, ventral extension with curved terminus, dorsal extension bent at right angle and terminating in a sharp point, extensions form claw-like terminus when viewed from the side. Claspers, small, thin with rounded terminus, angled mediad from base and meeting along midline under aedeagus. Aedeagus tubular, castaneous with large, flattened ochraceous terminal membrane.

Female. Unknown.

Measurements (mm). N = one male. Length of body: 13.00; length of fore wing: 15.55; width of fore wing: 5.50; length of head: 2.25; width of head including eyes: 3.85; width of pronotum including suprahumeral plates: 4.55; width of mesonotum: 3.80.

Diagnosis. Calyria uncinata sp. nov. can be distinguished from all other known species of Calyria by the dark body coloration and shape of the pygofer. It can be distinguished from C. fenestrata ( Fabricius, 1803) by the ferruginous coloration, larger male opercula with a smoothly curved posterolateral margin, and pygofer that has a single fingerlike extension that curves mediad at the tip found in that species. Althoutgh C. stigma ( Walker, 1850) also has piceous markings within the pronotal fissures and on the mesothoracic, the piceous markings of C. stigma are much reduced in comparison to the new species, the male opercula are larger with a smoothly curved posterolateral margin, the abdomen is primarily ferruginous, and the pygofer has a thin, sinuate extension rather than the thick claw-like extension of the new species. The new species can be distinguished quickly from C. cuna ( Walker, 1850) , C. mogannoides Jacobi, 1907 , C. telifera ( Walker, 1858) , and C. minutopercula Sanborn, 2020a by the spot of infuscation on the apex of the fore wing in these species. The remaining species of the genus, Calyria jacobii Bergroth, 1914 is smaller (body length 10.5 mm) green species with limited markings, has small opercula, the rostrum reaches only to the middle coxae, and the upper pygofer lobe is very wide extending half the length to the distinct dorsal beak (illustrated in Bergroth 1914).

Distribution. The new species is known only from the type locality in the state of Minas Gerais in southeastern Brazil.

Figures

Figure 1. Calyria uncinata sp. nov.: 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, 3 mm; C – F, 1 mm.