Amblyrhethus lineatus, Campos & de Mello, 2022
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publication ID |
https://dx.doi.org/10.3897/jor.31.84135 |
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publication LSID |
lsid:zoobank.org:pub:280146F3-CB02-4B86-A05E-D9DEA53D5FC6 |
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persistent identifier |
https://treatment.plazi.org/id/2D6DED73-00F2-4E92-B479-3BF06388BDC0 |
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taxon LSID |
lsid:zoobank.org:act:2D6DED73-00F2-4E92-B479-3BF06388BDC0 |
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treatment provided by |
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scientific name |
Amblyrhethus lineatus |
| status |
sp. nov. |
Amblyrhethus lineatus sp. nov.
(Figs 1 View Figure 1 , 2 View Figure 2 , 7 View Figure 7
Material examined. -
Holotype: BRAZIL • ♂; E[ spírito]S[anto], Linhares , Reserva / Vale do Rio Doce. Mata; January 1996; 1 19°09'10"S, 40°03'93"W; F.A.G. Mello & S.S. Nihei leg.; BOTU . Paratypes: BRAZIL • 1♂; same information as holotype; MZSP • 1♂; BA[hia], Mucuri, / Fazenda Farol - mata (forest); January 1996; 18°04'01"S, 39°40'23"W; F.A.G. Mello & S.S. Nihei leg.; BOTU.
Type locality. -
Brazil, Espírito Santo, Linhares municipality.
Etymology. -
From Latin, linea, meaning line or band. Allusive to the lateral bands of the species.
Diagnosis. -
This species is distinguished from other species of Amblyrhethus by the following characters: body with two distinct whitish-to-yellowish bands going laterally from eyes’ margin, lateral lobes of pronotum and reaching the margin of forewing, excepting apical field; longitudinally crossed laterally by a whitish-to-yellowish band on both sides, one on each wing field angulations; front, clypeus and gena whitish to yellowish brown, clearly lighter than top of head and remaining medium brown coloration of body; antennomeres whitish with some isolated antennomeres light brown. Basitarsus dorsal spines 3/1. Male forewings: A1 connected to A2; harp crossed by three veins. Male metanotum with two rounded projections, first abdominal tergite with two lamellar projections.
Description. -
Head. Fastigium wide, smooth (Fig. 1C View Figure 1 ). Three ocelli present, aligned in frontal view (Fig. 1C View Figure 1 ); lateral ocelli rounded, median smaller than lateral ones; frons smooth (Fig. 1C View Figure 1 ). Antennal scape longer than wide, much narrower than fastigium in frontal view. Maxillary palpi articles 4 and 5 same-sized, article 3 slightly longer; article 5 almost straight (Fig. 1B View Figure 1 ). Thorax. Dorsal disk wider than long, with bristles on cephalic and caudal margins (Fig. 1A View Figure 1 ). Dorsal disk cephalic margin slightly concave, caudal margin convex (Fig. 1A View Figure 1 ). Lateral lobes ventro-cephalic and ventro-caudal angles rounded (Fig. 1B View Figure 1 ). Forewings longer than abdomen, hindwings as long as forewings (Fig. 1A, B View Figure 1 ). Legs. TI with tympana on both faces; three apical spurs, two ventral, one dorso-internal. TII with three apical spurs, two ventral, one dorso-internal. TIII subapical spurs 5/4, with one (sometimes two) spine between each spur, six spines above subapical spurs on inner and outer sides. FIII longer than TIII (Fig. 1B View Figure 1 ). TIII inner apical spurs: iad>iam>iav; outer apical spurs: oam>oav>oad. Basitarsus dorsal spines 3/1; inner apical spur slightly longer than outer apical spur.
Male. Forewings as long as hindwings; anal vein area slightly bulged dorsally (Fig. 1B View Figure 1 ), A1 connected to A2. Stridulatory vein (PCu vein) present, portion close to CuPa sinuous. Harp crossed by three veins connected to CuPa; first harp vein short, second and third harp veins connected in the proximal region. Mirror as wide as long, divided in the middle by a curved vein. Apical field longer than mirror; lateral field with 14-15 diagonal veins (Fig. 1D View Figure 1 ). Metanotum with two rounded projections, first abdominal tergite with two lamellar projections (Fig. 1E View Figure 1 ). Supra-anal plate posterior margin rounded (Fig. 1F View Figure 1 ); subgenital plate longer than wide, posterior margin convex (Fig. 1G View Figure 1 ).
Male genitalia: (Fig. 2 View Figure 2 ) Pseudepiphallus: pseudepiphallic sclerite trapezoidal in dorsal and ventral views; almost straight in lateral view; anterior margin somewhat rounded on median region (Fig. 2A View Figure 2 ). LLophi curved upwards, posterior margin rounded in dorsal and ventral views; ventral face somewhat translucent (Fig. 2A, B View Figure 2 ). PsP longer than LLophi, inner margin divided into two lobes, not surpassing posterior margin of pseudepiphallic sclerite in dorsal and ventral views (Fig. 2A, B View Figure 2 ); posterior half wider than anterior half in ventral view (Fig. 2B View Figure 2 ). Rami straight, two times or more longer than pseudepiphallic sclerite (Fig. 2A-C View Figure 2 ). Ectophallic invagination: EctF strongly sclerotized, cordiform, on the edge of posterior margin of pseudepiphallic sclerite (Fig. 2A-D View Figure 2 ). EctAp longer than pseudepiphallic sclerite, slightly curved inwards in dorsal and ventral views (Fig. 2A, B View Figure 2 ); arc not complete, curved posteriorly; ventral projections of ectophallic invagination as long as arc. Endophallus: End short, u-shaped, in the middle of pseudepiphallic sclerite (Fig. 2B View Figure 2 ).
Female. Unknown.
Coloration. -
Occiput, vertex, and pronotum general coloration reddish brown to dark brown (Fig. 1A, B View Figure 1 ). Body crossed laterally by a whitish to yellowish band along the fore wings dorso-lateral angulation (head, lateral lobes, forewings) (Fig. 1A, B View Figure 1 ). Occiput reddish brown to dark brown, whitish laterally (Fig. 1A, C View Figure 1 ); face whitish to yellowish brown (Fig. 1C View Figure 1 ); antennal scape whitish; antennomeres whitish with some isolated antenomeres medium brown (Fig. 1B View Figure 1 ). Forewings slightly translucent, medium brown; region between M+Cua and Sc veins, white. Metanotum and abdominal tergites yellowish-brown (Fig. 1E View Figure 1 ). Supra-anal plate medium to dark brown, posterior margin darker (Fig. 1F View Figure 1 ). Abdominal sternites and subgenital plate light brown (Fig. 1G View Figure 1 ). FI, FII, TI, and TII medium brown to yellowish brown. FIII reddish brown to dark brown, slightly striped, distal margin darker; TIII yellowish brown to medium brown; spurs yellow with apex medium to dark brown; tarsomeres light brown (Fig. 1B View Figure 1 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Kingdom |
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Phylum |
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Class |
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Order |
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SuperFamily |
Grylloidea |
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Family |
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SubFamily |
Oecanthinae |
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Tribe |
Paroecanthini |
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SubTribe |
Tafaliscina |
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Genus |