Podischnus limeirai, Duarte & Grossi, 2020
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publication ID |
https://doi.org/ 10.11606/1807-0205/2020.60.special-issue.22 |
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publication LSID |
lsid:zoobank.org:pub:37E2BA2C-3F33-4710-B642-32FA952F2773 |
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persistent identifier |
https://treatment.plazi.org/id/7A1B87C8-FFE8-3054-59EB-3F48FEA1FEDF |
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treatment provided by |
Carolina |
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scientific name |
Podischnus limeirai |
| status |
sp. nov. |
Podischnus limeirai sp. nov.
( Figs. 1D View Figure 1 ; 2D View Figure 2 ; 3B, D View Figure 3 ; 5D View Figure 5 ; 6D View Figure 6 ; 7D View Figure 7 ; 8D View Figure 8 ; 9A View Figure 9 ; 10 View Figure 10 )
Type material: HOLOTYPE ♂ ( CERPE), not dissected, labeled: “ BRASIL: MARANHÃO: Araguanã, Alto Rio TuriaÇu , Reserva Indígena Awaguajá , Armadilha Luminosa , 17-20. III.2002, Limeira-de-Oliveira & J. T Câmara Cols. ( CERPE)” . PARATYPES: 3 males and 2 females with same data as holotype – (1 ♂, 1 ♀, EPGC; 1 ♂, 1 ♀, CEMT; 1 ♂, CZMA) ; “Bom Jardim, Reserva Biológica Gurupi, 01-06.III.2011, Limeirade-Oliveira & J.A. Silva Cols. ” (1 ♀, CERPE) .
Diagnosis: Podischnus limeirai sp. nov. is distinguished from other Podischnus species by the following combination of characters: metafemora with a row of setigerous punctures near anterior margin ( Fig. 3D View Figure 3 ) and tergite VII with arched stridulatory bands in both sexes ( Fig. 5D View Figure 5 ). Males with clypeal apex with no border in front of cephalic horn in dorsal view ( Fig. 3B View Figure 3 ); cephalic horn toothless ( Fig. 2D View Figure 2 ); pronotal horn with rounded anterior corners in dorsal view ( Fig. 1D View Figure 1 ) and dorsoventrally rounded in lateral view ( Fig. 2D View Figure 2 ); parameres with narrow outer margins in dorsal view ( Fig. 6D View Figure 6 ), and with outer sides visible in ventral view ( Fig. 7D View Figure 7 ). Females with anterior pronotal border medially narrow ( Fig. 9A View Figure 9 ).
Holotype, male description
Body length: 44.5 mm.
Body width: 21.0 mm.
Color: Surface almost completely reddish brown, only with tibial teeth darker.
Head: Clypeus bidentate; teeth separated in dorsal view by a broad, emarginated apex ( Fig. 3B View Figure 3 ); horn at the subapical area long, curved backwards, acuminated apically; horn laterally covered by setigerous, basal punctures. Frons smooth at middle, only with few small punctures confined to the sides; interocular width 1.2× the transverse diameter of the eye. Eye canthus subtriangular, excavated, glabrous. Antennae with 10 antenomeres; club subequal in length to antennomeres 2-7; 1-4 cylindrical, 5-7 subquadrate. Mandibles bidentate; external margin exposed laterally to clypeus in dorsal view; outer tooth stronger than inner tooth. Mentum convex, base with sides rounded, narrowed towards apex, apex widened; surface moderately punctate, punctures setose.
Pronotum: Pronotal horn bent backwards in lateral view ( Fig. 2D View Figure 2 ); horn base abruptly narrowed in posterior view; apex very broad, about four times wider than the basal width; in dorsal view slightly emarginate anteriorly ( Fig. 1D View Figure 1 ), with anterior corners rounded; posteriorly with two rounded areas separated by a deep longitudinal sulcus in posterior view; dorsal surface of pronotal horn finely punctate,ventral surface densely covered by short, yellowish setae. Pronotal border complete, anteriorly broader at the midline; surface of lateral margin medially with groups of coalescent, C-shaped punctures; anterior surface unequally declivous, declivity near 45°, slightly concave, with a medial groove extended posteriorly to horn base; posterior area with a weak lateral concavity on each side near horn base.
Scutellum: Subtriangular in shape, surface with a V-shaped-grouped, coalescent punctures, and C-shaped punctures among them.
Elytra: Surface completely chagrined, with roughness only observed under high magnifications; sutural striae well visible, remaining discal striae barely impressed;disc finely, irregularly punctate; area above humerus smooth; lateral area bellow humerus with three incomplete rows of large, ocellate punctures; punctures decreasing in size posteriorly.
Legs: Protibiae quadridentate; mesotibiae with one proximal, three medial, and two distal teeth on external surface; metafemora with a row of seven setigerous punctures near to anterior ventral margin ( Fig. 3D View Figure 3 ); metatibiae with one proximal, two medial and two distal teeth on external surface.
Venter: Surface nearly completely setose. Prosternal process triangular, flat in lateral view, prolonged between anterior coxae, with setae confined to the base and apex. Abdomen: Ventrite II with a complete row of setae; ventrites III-V with incomplete row of setae; ventrite VI completely bordered by setae at posterior margin; surface of ventrites II-V strongly rugose near to anterior margins, roughness confined to sides, disc nearly smooth, only with few, fine, scattered punctures; ventrite VI rugose at the sides, disc smooth, apex widely emarginate. Tergite VII with arched stridulatory apparatus ( Fig. 5D View Figure 5 ); stridu- latory apparatus formed by two bands of innumerous small tubercles; tubercles transverse, well-marked near the base, scattered about one tubercle of distance, becoming less scattered and finely marked toward apex. Tergite VIII strongly convex in lateral view; surface with rugopunctures on lateral and basal areas, disc finely punctate, glabrous; area near apical margin with a slight concavity on each side; posterior border glabrous.
Paratypes, male variation
Differing from the holotype in the following aspects: Body length ranging from 44.0-45.0 mm and body width from 20.5-21.0.
Head: Cephalic horn with lateral setae almost reaching its midline.
Pronotum: Pronotal medial groove sometimes absent, and pronotal horn sometimes with three longitudinal, posterior sulci.
Legs: Metafemora ventrally with a row of 5-10 setigerous punctures near the anterior margin.
Abdomen: Basal area of tergite VIII with two transverse bands of setae on each side; posterior border with setae confined to apex.
Aedeagus: Parameres symmetric, laterally narrowed at the outer margins in dorsal view, outer margins rounded posteriorly on apical half, inner margins setose ( Fig. 6D View Figure 6 ); in lateral view with a strong, longitudinal excavation; outer margins visible in ventral view, ventral plate slightly truncated apically ( Fig. 7D View Figure 7 ).
Female ( Fig. 8D View Figure 8 )
Very distinct from male holotype in the following characteristics.
Head: Surface completely rugopunctate; clypeus weakly narrowed laterally; frons with setose lateral areas separated by a small, conic, central tubercle.
Pronotum: Horn absent, surface with completely, transversely rugopunctate anterior area; posterior area finely punctate; lateroposterior area with large, sometimes co- alescent,C-shaped punctures;medial third with two small tubercles; anterior border narrow at the midline ( Fig. 9A View Figure 9 ).
Abdomen: Ventrite VI subtriangular shaped, finely punctate; tergite VIII glabrous, weakly convex compared to male in lateral view.
Etymology: The specific epithet “ limeirai ” is a patronym honoring to Dr. Francisco Limeira de Oliveira, curator of the ColeÇão Zoológica do Maranhão and the responsible of the current knowledge of the entomological fauna from “Meio Norte” region comprising the states of Maranhão and Piauí, respectively.
Geographical distribution: Brazil: Maranhão state ( Fig. 10 View Figure 10 ).
| T |
Tavera, Department of Geology and Geophysics |
| VI |
Mykotektet, National Veterinary Institute |
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.