311 research outputs found
Nelidina Gonçalves & Mejdalani 2017
No full textSpecies of Nelidina bifida sp. nov. Peru: Huanuco, San Martín. coronata sp. nov. Peru: Huanuco. defila (DeLong, 1953): p. 130. Peru: Junín. platypenis sp. nov. Peru: Huanuco. sportula Kramer, 1967: p. 41. Peru: Cusco, Pasco [new record]. taeniola Kramer, 1964: p. 272. Colombia: Chocó.Published as part of Gonçalves, Clayton Corrêa & Mejdalani, Gabriel, 2017, Three new species of Peruvian Nelidina (Hemiptera: Cicadellidae: Neocoelidiinae) with key to males, pp. 85-93 in Zootaxa 4365 (1) on page 86, DOI: 10.11646/zootaxa.4365.1.6, http://zenodo.org/record/111654
The Neotropical sharpshooter genus Ruppeliana Young (Insecta: Hemiptera: Cicadellidae): four new species, key to males, and new synonyms
No full textMejdalani, Gabriel (2017): The Neotropical sharpshooter genus Ruppeliana Young (Insecta: Hemiptera: Cicadellidae): four new species, key to males, and new synonyms. Zootaxa 4329 (5): 436-448, DOI: https://doi.org/10.11646/zootaxa.4329.5.
Ruppeliana longiphallus Mejdalani 2017, sp. nov.
No full textRuppeliana longiphallus sp. nov. (Figures 15–21) Total length: male holotype 9.7 mm; female paratypes 8.8–10.8 mm (n = 2). Description. External morphology. Head (Fig. 15), in dorsal view, moderately produced anteriorly; median length of crown approximately 1/2 of interocular width and almost 1/3 of transocular width; ocelli located slightly behind imaginary line between anterior eye angles, each ocellus closer to adjacent anterior eye angle than to median line of crown. Frons with central area granular; epistomal suture complete. Clypeus, in lateral view, with contour of lower portion forming angle with profile of frons; with fine pubescence at apex. Pronotum (Fig. 15), in dorsal view, with lateral margins slightly convergent anteriorly; dorsopleural carinae complete, rectilinear and declivous anteriorly; posterior margin approximately rectilinear. Forewings with veins inconspicuous. Remaining characteristics of external morphology as described for the genus by Young (1977: 747). Color (Fig. 15). Anterior dorsum black with yellow maculae (some maculae, mostly on pronotum, mottled with light green). Crown, in dorsal view, with three pairs of maculae, large pair between ocelli and eyes extending onto antennal ledges and two smaller pairs, one between ocelli and another apically at transition to frons. Face mostly black with pair of central maculae on frons and small stripe extending from each antennal ledge onto frontogenal sutures and convergent on clypeus, yellow. Pronotum, in dorsal view, with pair of anterior small spots aligned with apical pair of crown, followed by three pairs of large spots, one pair central and slightly more anterior and two pairs located laterally; posterior margin bordered by irregular transverse maculae (divided into smaller maculae in holotype and one paratype); posterior two-thirds with translucent smoky red maculae covering almost all maculae on disc. Forewings dark red; base of corium with yellow small stripe close to costal margin, followed by outer elongate grey stripe; with grey spot close to claval sulcus, followed by inner elongate grey stripe; with faint grey stripe between outer and inner stripes; clavus with two basal spots followed by longitudinal stripe, grey. Lateral portions of thorax and bases of legs yellow, femora brownish-yellow and tibiae and tarsi dark brown. Male genitalia. Pygofer (Fig. 16), in lateral view, strongly produced posteriorly, posterior margin narrowly rounded; macrosetae mostly on apical half; in ventral view, with triangular median projection ending in digitiform process on ventral margin. Valve (Figs. 16–17), in ventral view, with posterior margin broadly convex. Subgenital plates (Figs. 16–17), in ventral view, elongate, subtriangular, gradually tapering toward apex, outer margin slightly sinuous on median third; with uniseriate row of macrosetae and, dorsally, with numerous fine setae; in lateral view, reaching pygofer apical fourth. Style (Fig. 18), in dorsal view, elongate, extending posteriorly beyond apex of connective, almost reaching subgenital plate midlength; with outer preapical lobe; apical portion slightly directed outward; apex blunt. Connective (Fig. 18), in dorsal view, short, stalk and arms very short, with high and long median keel. Aedeagus (Figs. 19–20), in lateral view, with shaft narrow, elongate and expanded apically, slightly curved ventrally; in dorsal view, with apicodorsal median split associated with gonopore; atrium developed as ventral sheath-like portion bearing two pairs of processes, one pair basal, slender, curved slightly dorsally, not exceeding apical third of shaft, with acute apex, and another arising distad, long, robust, arcuate, with acute apex, extending approximately as far posteriorly as shaft apex. Female with sternite VII (Fig. 21), in ventral view, with slight median emargination on posterior margin. Etymology. The specific epithet, longiphallus, is of Latin derivation and refers to the comparatively long aedeagus. Taxonomic notes. The new species can be distinguished from the remaining ones of the genus by the elongate and slender aedeagus and the atrial pair of processes as long as the aedeagal shaft (Fig. 19). Curiously, the color pattern of R. longiphallus is similar to those of Macugonalia spinolai (Signoret, 1853) and Parathona albostriata (Signoret, 1853) (see digital images in Wilson et al. 2009). The latter two sharpshooter species, like R. longiphallus, are recorded from the Atlantic Forest of Rio de Janeiro State (Mejdalani et al. 2009). Type material. Brazil, Rio de Janeiro State. Holotype: male, “BR/ RJ [Rio de Janeiro State], Valença \ Parque Natural Municipal \ Açude da Concórdia \ 01-03/II/2013 \ Silva, R.S., Proença, B. & Xisto, T. col.” (MNRJ). Paratypes: two females (MNRJ), same data as the holotype.Published as part of Mejdalani, Gabriel, 2017, The Neotropical sharpshooter genus Ruppeliana Young (Insecta: Hemiptera: Cicadellidae): four new species, key to males, and new synonyms, pp. 436-448 in Zootaxa 4329 (5) on pages 442-444, DOI: 10.11646/zootaxa.4329.5.2, http://zenodo.org/record/100521
Figure 4 in Phylogenetic analysis of the leafhopper genus Apogonalia (Insecta: Hemiptera: Cicadellidae) and comments on the biogeography of the Caribbean islands
No full textFigure 4. Face of Apogonalia nielsoni Felix & Mejdalani (reproduced from figure 2 of Felix & Mejdalani, 2006, Zootaxa 1237: 19–25, with permission). L, sinuous vertical line on gena, character 33(1); S, 'lenticular sclerite' (Young, 1977), character 31(1).Published as part of Felix, Márcio & Mejdalani, Gabriel, 2011, Phylogenetic analysis of the leafhopper genus Apogonalia (Insecta: Hemiptera: Cicadellidae) and comments on the biogeography of the Caribbean islands, pp. 548-570 in Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 163 (2) on page 554, DOI: 10.1111/j.1096-3642.2011.00724.x, http://zenodo.org/record/544183
Chromagallia carvalhoi Goncalves, Mejdalani
No full textChromagallia carvalhoi Gonçalves, Mejdalani et Costa sp. nov. (Figs 14–17) Length. Male holotype, 4.5mm. Holotype description. Head and thorax (color). Ground color of anterior dorsum mostly black. Crown with three large orange spots: one on median portion and another laterally, adjacent to each compound eye. Face mostly black with pale yellow ocelli; frons with pale yellow elongate macula on antennal ledge; genae and maxillary plates with pair of brown maculae. Mesonotum with tiny yellow mark adjacent to scutoscutellar suture on either side. Forewings dark brown with six large orange maculae as follows: two on basal half of clavus (connected to each other and transcomissural); one mostly on apical portion of clavus (transcomissural); one on corium opposite claval apex; one more basally mostly on brachial and inner discal cells; transverse one on distal half of costal margin opposite claval apex; distal wing margin pale brown. Fore and middle legs mostly dark brown basally with distal femoral portion, tibia and tarsus mostly yellow, tarsal claws brown; hind legs mostly dark brown with knee orange, tarsus yellow, claws brown. Male genitalia. Pygofer (Fig. 14), in lateral view, short, with posterior portion subtriangular and posterior margin with lobe directed inward. Subgenital plates (Fig. 15), in ventral view, small, with distal half triangular, fused to each other only at basal half, basal portion with narrow median area less sclerotized; in lateral view (Fig. 14) extending posteriorly well beyond pygofer apex; surface with scattered setae, dorsoapical surface with longer setae. Styles (Fig. 16), in dorsal view, slender, fork well developed and curved outward; style shaft (Fig. 16) with small projection on inner margin for articulation with connective. Connective, in anterior view, forming an inverted “T”, not fused with aedeagal base. Aedeagus (Fig. 17) symmetrical; shaft, in lateral view, directed anteriorly on basal portion, then strongly curved posterodorsally, remaining area straight, directed ventrally and narrowed towards apex; curved portion distinctly lobed; apex slightly spiralized. Membrane IX–X with pair of small, slender processes (Fig. 14). Anal tube (Fig. 14), in lateral view, with segment X Female unknown. Etymology. The new species is described in honor of the entomologist Prof. Dr. Alcimar do Lago Carvalho (Museu Nacional, Universidade Federal do Rio de Janeiro), who has published important contributions on the order Odonata. Type material. Brazil, São Paulo State. Holotype: male, “São Sebastião\ SP. 1-1986 \ Blauth, P. col.\ à luz” (MZSP).Published as part of Gonçalves, Ana Clara, Mejdalani, Gabriel & Costa, Luiz Alves, 2008, Five new species of Chromagallia from South America (Insecta: Hemiptera: Cicadellidae: Agalliinae), pp. 1-17 in Zootaxa 1749 on pages 3-6, DOI: 10.5281/zenodo.18169
Remarkable morphological features of taxonomic interest in the female genitalia of five Erythrogonia species (Hemiptera: Cicadomorpha: Cicadellidae)
No full textCarvalho, Rachel A., Mejdalani, Gabriel (2014): Remarkable morphological features of taxonomic interest in the female genitalia of five Erythrogonia species (Hemiptera: Cicadomorpha: Cicadellidae). Zootaxa 3872 (3): 275-290, DOI: 10.11646/zootaxa.3872.3.
Two new species of Polana (Hemiptera: Cicadellidae: Iassinae: Gyponini) and redescription of Polana (Striapona) desela
No full textGonçalves, Clayton Corrêa, Takiya, Daniela Maeda, Mejdalani, Gabriel (2018): Two new species of Polana (Hemiptera: Cicadellidae: Iassinae: Gyponini) and redescription of Polana (Striapona) desela. Zootaxa 4457 (1): 143-155, DOI: 10.11646/zootaxa.4457.1.
Agalliopsis felixi Goncalves, Mejdalani & Coelho, sp. nov.
No full textAgalliopsis felixi Gonçalves, Mejdalani & Coelho, sp. nov. (Figs 39–47) Lenght. Male holotype 3.4 mm; male paratype 3.3 mm. Description (holotype). Head and thorax (color). Ground color mostly brownish-yellow. Crown (Figs 39, 40) with pair of ovoid, dark brown maculae, about equidistant from eyes and median line. Face (Fig. 40) with pair of transverse brown stripes below ocelli. Frons (Fig. 40) with pair of inconspicuous, elongate lateral brown maculae. Pronotum (Fig. 39) with four irregular dark brown maculae, one pair on median area and another pair near lateral margins; median area with irregular macula, posteriorly brown and anteriorly pale brown. Mesoscutellum (Fig. 39) with pair of maculae on laterobasal portions and macula on central region, brown. Forewings with veins partially covered by brown on basal half and by yellow on distal half. Lateral portions of mesothorax with large dark brown macula. Male genitalia. Pygofer (Fig. 41), in lateral view, with basal apodeme rounded apically; posterior portion with rounded lobe separated from anterior portion by non-sclerotized line, with scattered setae (Fig. 42); posteroventral margin with hook-shaped process (Fig. 43). Subgenital plates (Fig. 44), in ventral view, elongate, fused to valve (with faint suture between plates and valve), narrowing gradually towards obtuse apex; in lateral view (Fig. 41), extending posteriorly slightly beyond pygofer apex, with longer setae dorsally. Styles (Fig. 45), in lateral view, with oblique projection at dorsal portion for articulation with connective; outer fork small, rounded, subapical region with setae; inner fork more developed with small projection at subapical portion directed ventrally. Connective (Fig. 45), in lateral view, linear, fused to aedeagus; T-shaped in dorsal view. Aedeagus (Fig. 45), in lateral view, with basal region subquadrate, directed anteriorly, narrowing towards shaft; the latter directed ventrally and then dorsally, elongate and narrow, with pair of long subapical processes (Fig. 46) directed anteriorly and pair of short apical processes (Fig. 46) directed outward; gonopore apical (Fig. 46). Anal tube (Fig. 41) short; segment X with pair of processes, each one (Fig. 47) with superior and inferior rami, superior ramus bifurcated distally. Female. Unknown. Etymology. The new species is described in honor of Dr. Márcio Felix (Instituto Oswaldo Cruz, Rio de Janeiro), who has contributed to our knowledge of the Neotropical Cicadellidae. Type material. Holotype: male, Brazil, “ Viçosa, MG [Minas Gerais State], Brasil \ Data 24 /XI/ 1982 \ P. S. Fiuza F. [Ferreira]” (DZRJ). One male paratype with same data as holotype, except “ 20 /X/ 1992 ” (UFV).Published as part of Gonçalves, Ana Clara, Mejdalani, Gabriel & Coelho, Luci B. N., 2009, Six new species of Agalliopsis from Southeastern Brazil (Insecta: Hemiptera: Cicadellidae: Agalliinae), pp. 1-18 in Zootaxa 2014 on pages 12-14, DOI: 10.5281/zenodo.18590
Portanus restingalis Felix & Mejdalani, 2016, sp. nov.
No full text<i>Portanus restingalis</i> sp. nov. <p>(Figs 1–8)</p> <p> <b>Diagnosis.</b> Head (Figs 1, 2) with conspicuous pair of transverse dark brown stripes anteriorly, one above and one below ocelli; aedeagus (Figs 7, 8) ventrally with basally articulated, long bifid process.</p> <p> <b>Measurements (mm).</b> Male holotype: body length 6.90; crown length 0.56; transocular width 1.47; interocular width 0.72; maximum pronotal width 1.43; forewing length 5.40.</p> <p> <b>Description.</b> Head (Figs 1, 2) with median length of crown slightly less than 8/10 interocular width and slightly less than 4/10 transocular width. Pronotum (Figs 1, 2) with width slightly smaller than transocular width. Forewings with three closed anteapical cells; median cell longer than inner and outer ones. Hind legs with femoral setal formula 2:2:1; length of basal tarsomere greater than combined length of two succeeding tarsomeres.</p> <p>Male genitalia. Pygofer (Fig. 3), in lateral view, short and high; posterior margin broadly rounded with conspicuous, moderately broad dorsal lobe; lobe region with inner digitiform process, longer than lobe; dorsal portion of pygofer with group of long macrosetae extending posteriorly in a row; posterior lobe with short microsetae. Valve (Figs 3, 4) broad, subrectangular, posterior margin straight. Subgenital plates (Figs 3, 4) long, extending posteriorly well beyond pygofer apex; narrowed on apical half; basal third with emargination on outer margin; apex rounded; ventral longitudinal row of long macrosetae; dorsal area with long microsetae; apical margin with row of microsetae. Style (Figs 5, 6) long and narrow, extending posteriorly beyond connective apex; apical portion broad in lateral view; preapical lobe moderately produced; apex long and acute, curved outwards, forming hook with preapical lobe. Connective (Figs 7, 8) Y-shaped in ventral view; arms moderately long; anteromedian margin with lobe; apical portion broadened in ventral view. Aedeagus (Figs 7, 8) long and narrow; shaft slightly sinuous; apical portion slightly broadened; median ventral portion of shaft with basally articulated, bifid long process, extending posteriorly beyond shaft apex; rami of process narrowing apically, symmetrical and parallel in ventral view.</p> <p>Color. Dorsum (Figs 1, 2) brownish-yellow with ivory areas; narrow, irregular orange median stripe extending from anterior portion of crown to scutoscutellar suture of mesonotum. Crown (Figs 1, 2) with apical transverse ivory band on ocelli region; two conspicuous transverse dark brown stripes, one below and one above ocelli; pair of transverse ivory marks located medially behind superior dark brown stripe. Ocelli yellowish-white. Eyes brown. Pronotum (Figs 1, 2) with pair of oblique, faint brown maculae on anterior half of disc; pair of orange areas near humeral angles. Forewings (Fig. 1) translucent; veins mostly yellowish-brown; clavus and basal portion of corium with pale yellowish-brown areas; corium with brown macula near costal margin, approximately opposite apex of clavus; basal veins of apical cells marked with brown; apical portion of apical cells slightly darkened. Face pale yellow; apical portion of labium dark brown. Thoracic sclerites pale yellow laterally and ventrally. Legs pale yellow with apices of tarsi dark brown.</p> <p>Female unknown.</p> <p> <b>Type material.</b> Brazil. Holotype: male, “ REST. [Restinga de] MARICÁ—RJ \ 8/VIII/1991 \ G. MEJDALANI” (DZRJ).</p> <p> <b>Etymology.</b> The specific epithet, <i>restingalis</i>, refers to the type locality, Restinga de Maricá, a sandy coastal plain in Rio de Janeiro State, Brazil.</p> <p> <b>Remarks.</b> The new species is similar to <i>Portanus marginatus</i> Carvalho & Cavichioli, 2003 in some aspects of the color pattern and male genital structures. Both species have yellow to orange ground color and the anterior margin of the crown with transverse dark brown to black stripes (Figs 1, 2; Carvalho & Cavichioli 2003: fig. 8a). The pygofer is short, with a dorsoapical rounded lobe and inner narrow process, which is short and rounded apically (Fig. 3; Carvalho & Cavichioli 2003: fig. 8c). However, the new species has a pair of transverse dark brown stripes anteriorly, one above and one below the ocelli, extending from eye to eye without interruption (Figs 1, 2). The aedeagus has ventrally a basally articulated, bifid long process (Figs 7, 8), which is absent in <i>P. marginatus</i> (Carvalho & Cavichioli 2003: fig. 8g).</p>Published as part of <i>Felix, Márcio & Mejdalani, Gabriel, 2016, Two new species of Portanini (Hemiptera: Cicadellidae: Aphrodinae) from Southeastern Brazil, pp. 399-406 in Zootaxa 4196 (3)</i> on page 400, DOI: 10.11646/zootaxa.4196.3.3, <a href="http://zenodo.org/record/168108">http://zenodo.org/record/168108</a>
Ruppeliana barbarensis Mejdalani 2017, sp. nov.
No full textRuppeliana barbarensis sp. nov. (Figures 1–7) Total length: male holotype 9.8 mm; female paratype 10.3 mm. Description. External morphology. Head (Fig. 1), in dorsal view, moderately produced anteriorly; median length of crown almost 1/3 of interocular width and approximately 1/2 of transocular width; ocelli located slightly behind imaginary line between anterior eye angles, each ocellus closer to median line of crown than to adjacent anterior eye angle. Frons with central area granular; epistomal suture obsolete medially. Clypeus, in lateral view, with contour of lower portion continuing profile of frons; with fine pubescence at apex. Pronotum (Fig. 1), in dorsal view, with lateral margins parallel; dorsopleural carinae rectilinear and declivous anteriorly. Forewings with veins inconspicuous and bases of anteapical cells approximately aligned with claval apex. Remaining characteristics of external morphology as described for the genus by Young (1977: 747). Color (Fig. 1). Anterior dorsum dark brown to black; crown with pair of large pale yellow areas on antennal ledges extending medially onto ocelli (almost reaching each other) and attaining posterior margin adjacent to eyes; pronotum with two transverse bands, one broad, pale yellow, occupying posterior two-thirds and another narrow, reddish-brown, on posterior third, near posterior margin and covering pale band; mesonotum with large pale yellow area on posterior two-thirds, apex reddish-brown. Face pale yellow; frons with O-shaped macula continuing medially as median macula on clypeus, dark brown to black. Forewings reddish-brown, with four transverse bands extending from costal margin (diagonal one at base of corium and clavus, one anteriorly to claval apex, one crossing anteapical cells and last one on base of apical cells) and two large spots (one on clavus near midlength and another on corium between first and second band), yellowish-green; membrane hyaline. Lateral portions of thorax and legs mostly pale yellow. Male genitalia. Pygofer (Fig. 2), in lateral view, strongly produced posteriorly; dorsal margin gradually curving ventrally; macrosetae concentrated mostly on apical half; ventral margin, in ventral view, with small blunt projection near median third. Valve (Figs. 2–3), in ventral view, narrow, with anterior margin slightly concave medially. Subgenital plates (Figs. 2–3), in ventral view, elongate, subtriangular, gradually narrowed toward apex; with uniseriate macrosetae and several elongate microsetae along outer margin; in lateral view, not extending posteriorly beyond pygofer apex. Style (Fig. 4), in dorsal view, very long, extending posteriorly much beyond apex of connective; without preapical lobe; apex blunt. Connective (Fig. 4), in dorsal view, very short, V-shaped, arms divergent, stalk very short and with high median keel. Aedeagus (Figs. 5–6), in lateral view, with shaft expanded dorsally mostly at middle portion; in dorsal view, with deep dorsal split; aedeagal atrium well developed as ventral sheath-like portion linked to connective and bearing two pairs of processes: first pair arising basally, slender, very long and extending posteriorly much beyond shaft apex; second pair, in lateral view, a small, inconspicuous projection located dorsoapically at sheath-like portion, not attaining ventral margin of shaft. Female sternite VII (Fig. 7), in ventral view, with distinct median emargination on posterior margin. Etymology. The specific epithet, barbarensis, refers to the name of the type locality, Santa Bárbara Municipality, in Minas Gerais State. Taxonomic notes. In combination with the conspicuous color pattern (Fig. 1), R. barbarensis can be recognized by the extremely elongate basal processes of the aedeagus, which are more than twice as long as the aedeagal shaft (Figs. 5–6). Type material. Brazil, Minas Gerais State. Holotype: male, “ BRAZIL:\ Minas Gerais \ Santa Barbara [Bárbara]”; “ Caraca [Serra do Caraça], i.1970 \ F. M. Oliveira \ B. M. 1971-165” (DZUP). Paratypes: one male and one female (DZUP), same data as the holotype.Published as part of Mejdalani, Gabriel, 2017, The Neotropical sharpshooter genus Ruppeliana Young (Insecta: Hemiptera: Cicadellidae): four new species, key to males, and new synonyms, pp. 436-448 in Zootaxa 4329 (5) on pages 438-440, DOI: 10.11646/zootaxa.4329.5.2, http://zenodo.org/record/100521
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