Parcana DeLong & Freytag, 2023
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publication ID |
https://dx.doi.org/10.3897/asp.81.e81961 |
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publication LSID |
lsid:zoobank.org:pub:5C1FDC82-8F9F-4869-ADDD-83FA96E507ED |
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persistent identifier |
https://treatment.plazi.org/id/9F9C8467-EFBD-5C70-9A78-1A2FF261A3EB |
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treatment provided by |
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scientific name |
Parcana DeLong & Freytag |
| status |
stat. nov. |
3.3.5. Parcana DeLong & Freytag stat. nov.
Figs 47 View Figure 47 , 48 View Figure 48 , 49 View Figure 49
Type species.
Acuera ultima DeLong & Freytag, 1974: 197.
Diagnosis.
Medium size leafhoppers (9.0-13.0 mm). Head, in dorsal view (Fig. 47A View Figure 47 ), moderately produced anterad, median length as long as half interocular width; crown surface with transverse striae between ocelli; ocellus closer to midline than to inner margin of eye, with a small elongate black macula adjacent to anterior margin; posterior margin of crown with pair of rounded black spots behind ocelli. Head, in lateral view (Fig. 47B View Figure 47 ), crown-face transition thin, texture smooth medially or with scattered striations. Pronotum (Fig. 47A View Figure 47 ) with black punctures. Forewing (Fig. 47D View Figure 47 ) with black mottling; external discal cell with apical accessory vein. Pygofer (Fig. 47F View Figure 47 ) with or without apical processes. Valve without pair of oblique submedian integument thickening. Subgenital plate (Fig. 47G View Figure 47 ) commonly with long filiform setae. Connective (Fig. 47H View Figure 47 ) D-shaped, stem reduced. Style, in lateral view ( DeLong and Freytag 1974: 199, figs 93, 98), usually with apex expanded, dorsal margin forming a subapical process directed anterad. Aedeagus (Fig. 47K, L View Figure 47 ) with apodemal processes.
Coloration.
Head and thorax (Figs 47A-D View Figure 47 , 48 View Figure 48 , 49 View Figure 49 ) background yellowish-brown.; crown without black punctures and with a small elongate black macula adjacent to anterior margin of ocellus; posterior margin of crown with pair of rounded black spots behind ocelli. Face (Fig. 47B View Figure 47 ) commonly with transverse black bands over muscular impressions and without black punctures. Pronotum (Fig. 47A View Figure 47 ) with black punctures. Proepimeron (Fig. 47C View Figure 47 ) with black band below pronotal carina. Forewing (Figs 48 View Figure 48 , 49 View Figure 49 ) with black mottling. Profemur with or without black punctures and pair of black maculae. Metatibia (Figs 48 View Figure 48 , 49 View Figure 49 ) with cucullate bases of setae blacks.
Description.
Head, in dorsal view (Fig. 47A View Figure 47 ), moderately produced anterad, median length as long as half interocular width; transocular width 8.0 tenths pronotum humeral width; crown surface with transverse striae between ocelli; ocellus equidistant between anterior and posterior margins of crown and closer to midline than to inner margin of eye. Head, in frontal view (Fig. 47B View Figure 47 ), face wider than high; frons approximately 1.5 × longer than wide, texture shagreen, surface just below crown-face transition not excavated; frontogenal suture distant from eye margin by half maximum width of clypeus and extending to anterior margin of crown; supra-antennal lobe carinated and oblique, advancing over the frons by short distance; gena with ventrolateral margin slightly rounded; maxillary plate produced ventrally as far as clypeus apex; clypeus longer than wide; lateral margins straight parallel or slightly divergent toward apex; apex weakly emarginated. Head, in lateral view (Fig. 47C View Figure 47 ), crown-face transition thin, not foliaceous, texture smooth medially or with scattered striations; anterior margin of crown slightly projected over anterior margin of eye; frons and clypeus not inflated. Pronotum, in dorsal view (Fig. 47A View Figure 47 ), with transverse striae on disc and posterior third; lateral margins as long or slightly longer than eye length; posterior margin slightly excavated; in lateral view (Fig. 47C View Figure 47 ), moderately declivous, continuous with head declivity. Mesonotum (Fig. 47A View Figure 47 ), slightly wider than long. Scutellum (Fig. 47A View Figure 47 ) not inflated. Forewing (Fig. 5D View Figure 5 ) M vein with segment after the divergence between R+M and before the cross vein m-cu 1 about 5 × longer than the length of m-cu 1; external discal cell with apical accessory vein; appendix moderately developed, bordering first to second apical cells; apex rounded. Profemur moderately elongated, 3.5 × longer than wide; AD, AM, and PD rows reduced and poorly defined, with exception of apical setae AD1, AM1, and PD1, respectively; IC row formed by slightly arched comb of fine setae, beginning at distal half of femur and extending to AM1; AV and PV rows with 3-5 setae. Protibia, in cross-section, semi-circular, dorsal surface with longitudinal carina adjacent to PD row; AV row formed by long setae, slightly longer and thicker towards apex; dorsal rows with apical AD1 and PD1 setae developed; AD row with or without differentiated setae; PD row with 3 setae; PV row with 5-7 setae. Mesotibia with dorsal surface rounded. Metafemur with setal formula 2:2:1. Metatibia with AD with 1-3 intercalary setae between each macrosetae; PV row with setae of apical half formed by sequence of a longer and thicker seta, interspersed with 2-4 thinner and shorter setae, ending with a long and thick seta. Metatarsomere I ventral surface with two rows of 8-12 non-cucullate setae; pecten with 4-6 platellae, flanked by one inner and one outer tapered seta. Metatarsomere II pecten with 2-4 platellae flanked by two inner and one outer tapered seta.
Male terminalia.
Pygofer with (Fig. 47F View Figure 47 ; DeLong and Freytag 1974: fig. 80) or without ( DeLong and Freytag 1974: figs 75, 85) apical processes. Valve without pair of oblique submedian integument thickening; posterior margin excavated. Subgenital plate with or without (Fig. 47G View Figure 47 ) long filiform setae. Connective (Fig. 47H View Figure 47 ) D-shaped, stem reduced. Style, in lateral view ( DeLong and Freytag 1974: figs 78, 93)usually with apex expanded, dorsal margin forming subapical process directed anterad. Aedeagus (Fig. 47K View Figure 47 ; DeLong and Freytag 1974: fig. 82) with apodemal processes.
Distribution.
Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua and Panamá.
Remarks.
Herein, we recognized nine species of Parcana stat. nov. of which, three species, P. animosa comb. nov., P. concilia comb. nov. and P. mimica comb. nov., have the subgenital plate with long filiform setae along the external margin. This character is unknown in four species: P. albororata comb. nov., P. atitlana comb. nov., P. ventusa comb. nov. and P. extara comb. nov., however, due to the similarity in the male genitalia, external morphology and coloration between P. animosa comb. nov. and P. albororata comb. nov., P. mimica comb. nov. and P. atitlana comb. nov., and between P. concilia comb. nov., P. extara comb. nov. and P. ventusa comb. nov., we consider it likely that these species also have the subgenital plate with long filiform setae. Therefore, P. ultima comb. nov. is the only confirmed specie of the genus that the subgenital plate lacks filiform setae. With the transference of the South American species of Parcana stat. nov. to other genera ( A. gloma , A. patula , and A. rana ), now its distribution is restricted to the Central America.
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