Portanus cornutus, Anselmini & Prando & Takiya, 2022

Anselmini, Luiza Silva, Prando, Jádila Santos & Takiya, Daniela Maeda, 2022, Diversity of Portanini (Insecta: Hemiptera: Cicadellidae) from Parque Nacional do Itatiaia, Southeastern Brazil, with descriptions of two new species, Zootaxa 5174 (5), pp. 583-595 : 585-587

publication ID

https://doi.org/10.11646/zootaxa.5174.5.6

publication LSID

lsid:zoobank.org:pub:FE54D0F3-8F44-432D-AFC6-289F48F96A2D

DOI

https://doi.org/10.5281/zenodo.6987107

persistent identifier

https://treatment.plazi.org/id/03EC1527-ED6A-FFDE-FF6A-86DA43565A8B

treatment provided by

Plazi

scientific name

Portanus cornutus
status

sp. nov.

Portanus cornutus sp. nov.

( Figs 1–19 View FIGURES 1–12 View FIGURES 13–19 )

Diagnosis. Crown ( Fig. 1 View FIGURES 1–12 ) orange-brown with transverse white stripe at posterior margin connected to four short longitudinal white stripes. Forewings ( Fig. 5 View FIGURES 1–12 ) with longitudinal transcommissural ivory stripe connecting two large ivory spots. Pygofer lobe ( Fig. 6 View FIGURES 1–12 ) long with paired ventral processes with apices curved ventrally. Aedeagus ( Fig. 12 View FIGURES 1–12 ) with single long spiniform bifid process arising ventrally near base and extending posteriorly along haft to apex.

Measurements (mm). Male holotype: total length 5.05; crown length 0.39; transocular width 1.12; interocular width 0.54; maximum pronotal width 1.11; maximum pronotal length 0.62; forewing length 4.06. Male paratypes (n=4)/Female paratypes (n=8): total length 5.17/5.88; crown length 0.41/0.45; transocular width 1.19/1.30; interocular width 0.58/0.64; maximum pronotal width 1.18/1.29; maximum pronotal length 0.62/0.65; forewing length 4.18/4.71.

Coloration. Dorsum ( Fig. 1 View FIGURES 1–12 ) mostly orange-brown with ivory markings. Crown ( Fig. 1 View FIGURES 1–12 ) orange-brown with transverse stripe at posterior margin connected to four short longitudinal stripes and pair of interocellar spots, ivory. Ocelli yellowish-white. Eyes ( Fig. 2 View FIGURES 1–12 ) reddish-white (red in ethanol). Pronotum ( Fig. 1 View FIGURES 1–12 ) with ivory markings forming a distinct pair of longitudinal lateral bands (holotype with narrower median stripe also). Mesonotum with a pair of anterior triangular lateral orange maculae. Scutellum ivory. Forewings ( Fig. 5 View FIGURES 1–12 ) translucent; clavus with transcommisural ivory longitudinal band throughout most of length, broadened into two large spots at middle and apex of band with small ivory spots along claval suture; corium with two transverse fine stripes originating from costal margin and extending through discal and anteapical cells, basal veins of apical cells, and apex, dark brown. Legs pale yellow with apices of tarsi brown. Venter ( Figs 3–4 View FIGURES 1–12 ) pale yellow.

External morphology. Crown ( Fig. 1 View FIGURES 1–12 ) with median length three-tenths transocular width; anterior margin angulate; lateral frontal sutures not reaching ocelli. Pronotum ( Fig. 1 View FIGURES 1–12 ) slightly narrower than transocular width; dorsolateral carina ( Fig. 2 View FIGURES 1–12 ) conspicuous; posterior margin slightly concave. Forewing ( Fig. 5 View FIGURES 1–12 ) with conspicuous venation; three closed anteapical cells, median one slightly longer than others; first and fourth apical cells subquadrangular, second and third subrectangular. Hind leg with femoral setal formula 2+1+1; tibia with rows AD and PD both with a row of long cucullate setae (10 in holotype) intercalated by few shorter cucullate ones at AD and single longer one at PD.

Male genitalia. Pygofer lobe ( Fig. 6 View FIGURES 1–12 ), in lateral view, longer than high; long basiventral spiniform process extending slightly beyond pygofer apex and curved ventrally; posterior margin rounded lobe; macrosetae distributed at dorsal fourth. Valve ( Fig. 8 View FIGURES 1–12 ), in ventral view, subrectangular and wide; posterior margin straight. Subgenital plate ( Fig. 9 View FIGURES 1–12 ), in lateral view, extending posteriorly farther than pygofer apex; basal third with transverse unpigmented line; ventral surface of apical four-fifths with uniseriate row of robust and long macrosetae (seven in holotype) and several long and fine microsetae; apex, in lateral view, slightly turned dorsally. Connective ( Fig. 10 View FIGURES 1–12 ), in dorsal view, Y-shaped; basiventral process short. Style ( Fig. 10 View FIGURES 1–12 ), in dorsal view, long and narrow, extending posteriorly much beyond connective apex; with apical third ( Fig. 11 View FIGURES 1–12 ) wide and appearing bifid because of an elongate and robust preapical lobe. Aedeagus ( Fig. 12 View FIGURES 1–12 ), in lateral view, with preatrium well developed; dorsal apodemes short and sinuous; atrium base with ventral long and spiniform bifid process extending posteriorly to shaft apex; shaft long and tubular, without processes. Anal tube ( Fig. 7 View FIGURES 1–12 ) with segment X long and without processes.

Female genitalia. Sternite VII ( Fig. 13 View FIGURES 13–19 ), in ventral view, approximately rectangular; posterior margin sinuous with three rounded concavities. Pygofer lobe ( Fig. 14 View FIGURES 13–19 ), in lateral view, as long as high; subtriangular; macrosetae distributed on posterior two-thirds; apex angulate. First valvifer ( Fig. 15 View FIGURES 13–19 ) subquadrangular. First valvula ( Figs 15–16 View FIGURES 13–19 ), in lateral view, expanded at apical third; dorsal sculptured area at apical third strigate; ventral sculptured area at apex strigate; apex acute. Second valvifer ( Fig. 17 View FIGURES 13–19 ) approximately rectangular; small sclerotized dentiform process at apical two-thirds of posterior margin. Second valvula ( Figs 17–18 View FIGURES 13–19 ), in lateral view, expanded at apical half; with approximately 25 separate triangular teeth without denticles (n=1); without preapical prominence; ventroapical margin smooth. Gonoplac ( Fig. 19 View FIGURES 13–19 ) expanded at apical half; apex rounded with approximately two macrosetae (n=1).

Type material. Holotype: ♂, “ BRASIL: RJ, Itatiaia , PNI, Setor \ Lago Azul, Mata, PNI-M3B.\ coord. 22°27’01.10” S \ 44°36’55.30” W, 830m, a.s.l. \ BIOTA FAPERJ \ 1.out- 2.nov.2015 \ Coleta-04”, MNRJ. GoogleMaps

Paratypes: 1 ♂, same label data as holotype, DZRJ (DZRJ-AUCH-0267) GoogleMaps . 5 ♀ and 1 ♂, “ BRASIL: PR, São José dos\ Pinhais, Rep [ Represa ]. Guaricana ,\ 25.7176°S 48.964°W,\ 760m, 07-26.III.2018,\ Malaise, Muniz, Melo,\ Cavichioli & Domahovski”, DZUP GoogleMaps . 1 ♀ and 1 ♂, same label data as preceding except “ 25.7272°S 48.9498°W, 410m, 26.XII.2017 -09.1.2018”, DZUP GoogleMaps . 2 ♀ and 1 ♂, same label data as preceding except “ 23.XI-12.XII.2017 ”, DZUP GoogleMaps . 1 ♀ and 1 ♂, “ BRASIL, Paraná, Antonina. \ RPPN Guaricica, Trilha da \ Pantera , \ 25 o 18’41”S 48 o 39’41”W, 170 m \ 23-27.x.2017, Malaise. \ Entomologia, UFPR ”, DZRJ GoogleMaps (DZRJ-AUCH-0314-314, DNA Voucher ENT 4753).

Etymology. The species epithet derives from the Latin word cornu, meaning horn, in allusion to ivory maculae at the posterior margin of the crown, which resemble horns.

Remarks. Portanus cornutus sp. nov. is similar to Portanus marginatus Carvalho & Cavichioli, 2003 externally ( Fig. 1 View FIGURES 1–12 ). It is also similar to Portanus restingalis Felix & Mejdalani, 2016 , in having the (1) valve ( Fig. 8 View FIGURES 1–12 ) broad and subrectangular, and (2) aedeagus ( Fig. 12 View FIGURES 1–12 ) with median ventral portion of shaft with pair of long processes extending posteriorly. However, it can be distinguished from the latter and other Portanus species because its (1) crown ( Fig. 1 View FIGURES 1–12 ) has four short longitudinal white stripes on posterior margin, (2) forewings ( Fig. 5 View FIGURES 1–12 ) have a longitudinal white transcommisural stripe with two large white spots, (3) pygofer ( Fig. 6 View FIGURES 1–12 ) lobe is long and has processes curved ventrally, and (4) aedeagal ( Fig. 12 View FIGURES 1–12 ) processes do not extend beyond the shaft apex.

This species was collected at lower altitudes at PNI (830 m) and at 410 and 760 m at Paraná State.

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Genus

Portanus