Sicrana, Gonçalves & Domahovski & Mejdalani & Takiya, 2021

Gonçalves, Clayton C., Domahovski, Alexandre C., Mejdalani, Gabriel & Takiya, Daniela M., 2021, Three new genera from South America and some taxonomic changes in Gyponini (Insecta: Hemiptera: Cicadellidae), European Journal of Taxonomy 750, pp. 70-93 : 81-83

Genus Sicrana gen. nov.

urn:lsid:zoobank.org:act:5D4E6996-37CB-49B3-AF47-0F247BBFF9AA

Figs 4–5, 6G–J

Type species

Sicrana plana gen. et sp. nov., by present designation and monotypy.

Diagnosis

Large-sized, flattened leafhoppers ( Fig. 6G–J). Head in dorsal view ( Fig. 4A) with rugose surface, strongly produced anteriorly, anterior margin parabolic; ocellus closer to median line than to adjacent eye and closer to posterior than to anterior margin of crown; in lateral view ( Fig. 4C), with crown- face transition distinct and strongly foliaceous, margined by two carinae. Face ( Figs 4B, 5A) with frons narrow; maxillary plate not reaching clypeus apex. Pronotum ( Fig. 4A–C) with lateral margins foliaceous, expanded laterally. Forewing ( Fig. 4D) with appendix absent. Aedeagus ( Fig. 4J–K) with pair of apodemal processes. Second valvula of ovipositor with apical portion ( Fig. 5G–H) with large preapical tooth.

Etymology

The generic name is feminine. Sicrana , together with Beltrana and Fulana , forms a very popular expression in Brazil (“Fulana, Sicrana e Beltrana’), which refers to unspecified people or people whose actual names should not be mentioned.

Description

HEAD AND THORAX. Head in dorsal view ( Fig. 4A) moderately produced anteriorly, median length of crown almost as long as interocular width; transocular width three-fourths of humeral width of pronotum; crown with anterior margin parabolic; surface flat; texture rugose; ocellus medium-sized, closer to median line than to adjacent eye and closer to posterior than to anterior margin of crown; coronal suture distinct along basal two-thirds of crown. Head in lateral view ( Fig. 4C) with crown-face transition distinct and strongly foliaceous, with two very close carinae; frons tumid. Head in ventral view ( Figs 4B, 5A) approximately as wide as high; frontogenal suture strongly sinuous, reaching antennal ledge and distant from eye margin by twice maximum width of clypeus; antennal ledge carinated, strongly arched, adjacent to anterior margin of crown and not extending over frons; frons narrow, approximately two times longer than wide; epistomal suture indistinct; clypeus approximately 1.4 times as long as maximum width, lateral margins parallel, apex slightly emarginated; maxillary plate very narrow, not reaching clypeus apex; gena with ventrolateral margin slightly excavated, texture with several oblique striations parallel to ventrolateral margin. Pronotum ( Fig. 4A) rugose, except disc and posterior third with transverse parallel striae; anterior margin almost straight; lateral margins convergent anterad, about two times as long as eye length, rounded, carinated and foliaceous, expanded laterally; posterior margin slightly excavated; in lateral view ( Fig. 4C), pronotal surface declivous; head and pronotum in continuous slope. Mesonotum ( Fig. 4A) as long as wide; scutellum ( Fig. 4C) flat. Forewing ( Fig. 4D) long and narrow, approximately 3.2 times as long as wide; venation with some additional crossveins located mainly apically; appendix absent; apex subacute. Profemur with AD, AM, and PD rows reduced and poorly defined, with exception of apical setae AD1, AM1, and PD1, respectively; AV and PV rows formed by 5–6 very short and thin setae; IC row formed by slightly arched comb of fine setae, beginning at distal half of femur and extending to AM 1. Protibia in cross-section semi-circular; AV row formed by short setae, slightly longer and thicker towards apex, setae of apical portion shorter than diameter of tibia; AD row without differentiated setae; PD row with three small setae and undifferentiated intercalary setae; PV row with 4–5 small setae on apical half and undifferentiated intercalary setae. Metafemur with setal formula 2:2:1. Metatibia PD, AD, and AV rows with 24–25, 12, and 16 macrosetae, respectively; metatibia AD row without intercalary setae between macrosetae. Metatarsomere I with two rows of cucullate setae, inner row formed by 5–7 setae, outer row reduced, with 0–2 median setae, apex with 5 platellae. Metatarsomere II apex with 2–3 apical platellae.

MALE TERMINALIA. Connective ( Fig. 4H) transversely linear. Aedeagus ( Fig. 4J–K) with pair of apodemal processes.

FEMALE TERMINALIA. Second valvula of ovipositor ( Fig. 5G) slightly higher preapically; apical portion ( Fig. 5H) with large preapical tooth.

Distribution

Brazil (Rondônia State) and Ecuador (Orellana Province).

Remarks

Sicrana gen. nov. shares similar characteristics of external morphology and male terminalia with Clinonana Osborn, 1938 , for instance: (1) large total length (> 13 mm); (2) head distinctly narrower than pronotum; (3) crown with rugose texture; (4) transition crown-face distinct and foliaceous; (5) ocellus closer to median line than to eye and closer to posterior than to anterior margin of crown; (6) pronotum with lateral margins foliaceous, expanded laterally; (7) forewing with subacute apex; and (8) aedeagus with apodemal processes and shaft with apical processes. However, Sicrana gen. nov. can easily be distinguished from Clinonana by the following characteristics: (1) body flattened dorsoventrally ( Fig. 6H, J); (2) crown conspicuously more produced anteriorly ( Fig. 4A); (3) frontogenal suture strongly sinuous and not reaching the anterior margin of the crown ( Figs 4B, 5A); (4) face as high as wide ( Figs 4B, 5A); (5) maxillary plate not reaching the apex of the clypeus ( Figs 4B, 5A); (6) pronotum with lateral margins rounded ( Fig. 4A); (7) forewing without appendix and maculae ( Fig. 4D); (8) metafemur with setal formula 2:2:1; and (9) male pygofer without processes ( Fig. 4F).