Eidmanacris corumbatai Garcia, 1998

Nihei, Silvio S., 2017, Taxonomic review of Eidmanacris Chopard, 1956 (Orthoptera: Grylloidea: Phalangopsidae), Zootaxa 4321 (1), pp. 1-93 : 41-45

Eidmanacris corumbatai Garcia, 1998

( Figs. 27–29 )

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:28455

Eidmanacris corumbatai Garcia, 1998 in Mesa, Sperber & Garcia, 1998: 46 . Type locality: Brazil, state of São Paulo, municipality of Cerrado de Corumbataí.

Eidmanacris corumbatai, Prado & Fontanetti, 2005: 83 –87 (morphology of metanotal gland); Prado, 2006:452 –457 (reproductive behavior); Zefa, Fontanetti & Martins, 2010 (citogenetic note); Souza-Dias, Campos & Nihei, 2015 (note).

Type material examined. Holotype male, allotype. Holotype male labeled: “ Brasil (SP), Cerrado de Corumbataí , 30-IX-95 / A. Mesa, P. García, Camila Cherem, Ejemplares fotografados” . Allotype labeled: “ Brasil (SP), Cerrado de Corumbataí , 10-IX-95, A. Mesa-P. García, C. Cherem ” ( MZSP). Specimens preserved in ethanol 80%.

Other material examined. Total : 4 males and 5 females labeled: “ Brasil, SP, Botucatu , Distrito de Vitoriana, Beira da Estrada no cerrado, 01.xii.1995, F. A.G. Mello—S. Nihei, leg ” ( UBTU). All specimens preserved in ethanol 80%.

Distribution. Brazil, state of São Paulo.

Diagnosis. This species can be distinguished from other Eidmanacris by the following characters: frons with maculae dark brown below antennal scape in frontal view; antenomeres medium brown with whitish bands composed of c.a. 5 antenomeres, intersected by a single, whitish antenomere; lateral-posterior projections of Supra-anal plate greyish; superior, supero-internal and infero-internal projections of apex of pseudepiphallic arm reduced to a spine, inferior projection hook-shaped, with bristles on inner surface, upcurved, ventral projection curved inwards with bristles; posterior half of dorsal projection of ectophallic invagination thinner than anterior, posterior margin straight.

Redescription. Head. Medium to reddish brown. Occiput pilose, with central maculae light brown, band light brown going from occiput to margin of each eye; vertex medium brown with three vertical lines light brown in dorsal view ( Fig. 27C ). Fastigium medium to dark brown, with two rows of bristles, slightly longer than wide, narrowed toward apex, separated from vertex by line forming “v” ( Fig. 27C ). Frons light brown, with three bands dark brown, vertical, two below eyes, one above clypeus; maculae dark brown below antennal scape, in frontal view ( Figs. 27A, B ). Three ocelli present, well developed, forming isosceles triangle, central one flattened at bottom, lateral ones elliptical ( Figs. 27A, B, C ). Eyes with an unpigmented small area on supero-internal angle ( Fig. 27C ). Maxillary palpi, long, thin, pilose, medium brown, distal portion of joints whitish; joints 3, 4 and 5 almost same-sized ( Fig. 27G ); apex of joint 5 upcurved. Gena light brown, posterior margin dark brown, line dark brown, vertical, connecting to inferior margin of eye in lateral view ( Fig. 27B ). Frontoclypeal suture dark yellow, clypeus light brown with central band dark brown in upper margin, in frontal view; labrum whitish, lower portion light brown. Mandible light brown, with inner margin dark brown. Antennal scape light brown, inner margin dark brown ( Fig. 27A ); antenomeres medium brown with whitish bands composed of c.a. 5 antenomeres, intersected by one antenomere whitish.

Thorax. Pronotum DD reddish brown, wider than long, with sparse dark spots and maculae, slightly pubescent, inflated, divided by very tiny light brown sagittal line ( Fig. 27C ); DD cephalic margin slightly concave, caudal margin sub straight ( Fig. 27C ); lateral lobes dark brown, ventro-cephalic angle rounded, lighter than DD, ventrocaudal margin gradually ascendant ( Fig. 27B ).

Legs. FI and II yellowish brown, annulated with dark brown. TI and II yellowish brown, TI with two samesized apical spurs; TII with two inner apical spurs, one outer, smaller. FIII yellowish brown, with thin stripes medium to dark brown on outer surface, dorsal margin and apical third dark brown ( Fig. 27F ). TIII yellowish brown; subapical spurs 4/4, with serrulation above and between subapical spurs; apical spurs 3/3, more developed on inner surface: median (iam) longer than dorsal (iad), ventral smallest (iav) (iam>iad>iav); outer apical spurs: median one longer (oam), dorsal sub-equal in length (oad), ventral smaller (oav) (oam>oad>oav). Basitarsi I, II and III dark yellow.

Abdomen. Cylindrical in dorsal view, medium to dark brown, with spots and maculae, divided by a light brown thin sagittal line ( Fig. 27D ).

Male. Large-sized body, general coloration reddish brown, with dark spots and maculae. FWs medium to dark brown, elongate, triangular, inner margin medium brown; posterior part of inner margin and apex whitish, connected to single vein that divides external part of FW as lateral field, glandular thickening present distally ( Fig. 27C ); inner margins not touching each other, covering metanotal gland, surpassing metanotum posterior border ( Figs. 27B, C ). Metanotal gland present, anteromedian crest forming inverted triangle with cluster of bristles; lateral projections short, conical, parallel ( Figs. 27H, I ), posterior portion of metanotum pubescent. Supra-anal plate light to medium brown, lateral margins dark, anterior margin slightly concave; lateral-posterior projections longer than posterior margin, grayish, with long bristles; posterior margin sub-straight ( Fig. 27J ). Subgenital plate longer than wide, with lateral pubescence, laterally medium to dark brown, centrally greyish; anterior margin straight, posterior margin straight with small invagination centrally ( Fig. 27K ).

Phallic complex ( Figs. 28A–C ; 29A–C). Pseudepiphallus: central portion of the base of pseudepiphallic sclerite thinner than lateral portions, in dorsal view; pseudepiphallic arms sclerotized, hard, upcurved forming 90° angle in lateral view; apex of pseudepiphallic arm with bristles on outer surface; superior, supero-internal and infero-internal projections reduced to spine; inferior projection hook shaped with bristles on inner surface, upcurved, ventral projection curved inwards with bristles; lateral projection present, short, apex pointed; anterior projection of pseudepiphallic sclerite short, not surpassing base of pseudepiphallic sclerite; PsP2 elongate, sclerotized, reaching posterior extremity of pseudepiphallic arms in dorsal view, apex pointed in lateral view, curved inwards in dorsal view, with membranous sphere on inner surface; sclerite A connected with base of pseudepiphallic sclerite, straight, articulation with PsP2 visible; PsP1 elongate, inner surface well sclerotized in ventral view. Ectophallic invagination: ectophallic apodeme elongate; ectophallic arc located below the base of pseudepiphallic sclerite, “v”-shaped in dorsal view; ventro-posterior projection elongate, tip slightly curved inward; dorsal projection sclerotized, fused. Endophallus: median-posterior projection of endophallic sclerite elongated, not surpassing PsP2 apex, median portion wider in ventral view; lateral-posterior lobes of endophallic sclerite elongate; endophallic apodeme elongate, anterior to ectophallic apodeme.

Female. Larger than male, general coloration similar ( Fig. 27E ). Supra-anal plate medium brown, posterior margin light brown, anterior margin slightly concave, posterior margin rounded with long bristles ( Fig. 27L ). Subgenital plate light brown with whitish band medially, wider than long, anterior margin sub straight, posterior margin rounded with central furrow reaching the median area of plate ( Fig. 27M ). Ovipositor as in figs. 27N, O.

Copulatory papilla ( Figs. 29D–F ). Sclerotized, wider than long, cylindrical, anterior margin membranous, posterior region with visible hole, anterior margin rounded.

Measurements (mm). Male (n=4): Hw, 3.37 ± 0.22 (3.22–3.72); iod, 1.65 ± 0.23 (1.42–1.86); Lpron, 3.85 ± 0.24 (3.59–4.15); awpron, 3.22 ± 0.40 (2.79–3.59); pwpron, 3.95 ± 0.13 (3.78–4.09); wpron, 5.13 ± 0.36 (4.71– 5.52); LFW, 3.36 ± 0.13 (3.16–3.47); wFW, 1.82 ± 0.15 (1.67–2.05); LFIII, 17.32 ± 0.93 (16.2–18.45); wFIII 3.52 ± 0.19 (3.3–3.75); LTIII, 17.85 ± 1.26 (16.35–18.9); Ltars 1-III, 4.8 ± 0.44 (4.35–5.4).

Female (n=5): Hw, 3.67 ± 0.17 (3.47–3.9); iod, 1.71 ± 0.22 (1.48–1.98); Lpron, 4.03 ± 0.21 (3.72–4.21); awpron, 3.72 ± 0.15 (3.53–3.9); pwpron, 4.48 ± 0.14 (4.28–4.65); wpron, 5.44 ± 0.25 (5.08–5.7); LFIII, 18.18 ± 0.72 (17.4–18.9); wFIII, 4.26 ± 0.34 (3.9–4.8); LTIII, 18.09 ± 0.77 (17.25–18.75); Ltars 1-III, 4.65 ± 0.3 (4.35– 4.95); OL, 10.92 ± 0.55 (10.5–11.85).

Figures

FIGURE 27. Eidmanacris corumbatai Garcia. Holotype and allotype. A — male head, frontal; B — male head, pronotum and FW, lateral; C — male head, pronotum and FWs, dorsal; D — male abdomen, dorsal; E — female habitus; F — posterior femur; G — maxillary palpus; H — male metanotum, dorsal; I — male metanotum, lateral; J — male supra anal plate; K — male subgenital plate; L — female supra anal plate; M — female subgenital plate; N ovipositor dorsal; O — ovipositor ventral. Scale bar: A – F: 2 mm; G – O: 1 mm.

FIGURE 28. Eidmanacris corumbatai Garcia. Paratype. Male phallic complex: A — dorsal; B — ventral; C — lateral. Scale bar: 0.5 mm.

FIGURE 29. Eidmanacris corumbatai Garcia. Paratypes. Male phallic complex: A — dorsal; B — ventral; C — lateral. Female copulatory papilla: D — dorsal; E — ventral; F — lateral. Scale bar: 0.5 mm.