Eidmanacris alboannulata ( Piza, 1960 )

Nihei, Silvio S., 2017, Taxonomic review of Eidmanacris Chopard, 1956 (Orthoptera: Grylloidea: Phalangopsidae), Zootaxa 4321 (1), pp. 1-93 : 16-20

Eidmanacris alboannulata ( Piza, 1960)

( Figs. 9–11 )

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:28466

Arachnomimus alboannulatus Piza, 1960: 253 (male and female description). Type locality: Brazil, state of São Paulo, municipality of Piracicaba.

Endecous alboannulatus, Chopard, 1968: 280 (catalogue).

Eidmanacris bicornis Mesa & Mello, 1985: 199 –204 (male and female description); Synonymy by Mesa et al., 1998: 44.

Arachnominus alboamulatus, Paschoal & Barros, 1997: 242 (misspelling).

Eidmanacris alboannulata, Mesa et al., 1998: 44 (synonymy with bicornis ); Prado & Fontanetti, 2005: 83 –87 (morphology of metanotal gland); Zefa, Fontanetti & Martins, 2010: 53 –58; Souza-Dias, Campos & Nihei, 2015: 554 (note).

Type material examined. 1 male paratype, 1 female paratype. Labeled: “ Eidmanacris bicornis Mesa & Mello ”; “Muséum Paris, Brésil, Col. A. Mesa / F. Mello ”; “ São Paulo, 10 km NE of Itirapina , Vii-1982 ”; “ PARATYPE ”; “MNHN-EO-ENSIF3929” ( MNHN). Dry specimens.

Other material examined. Total: 51 males, 74 females. 13 males and 17 females labeled: “ Jundiaí , São Paulo, Brasil, Reserva Biológica Serra do Japi, 05–07.xi.2012, Dias, P.G.B.S.; Dios, R. et al.” ( IBUSP) . 1 male and 1 female labeled: “ Brasil, SP, Piracicaba , Horto Flor. Tupi, xii. 1988, F.A.G. Mello leg. Brasil ” ; 3 males and 7 females labeled: “SP, Itirapina , Fazenda da Toca (entrada da gruta), xi-1989, F.A.G. Mello, leg ” ; 23 males and 22 females labeled: “ Brasil, SP, Botucatu , Fazenda Lageado, Ambiente de mata, 01.xii.1995, F. A.G. Mello—S. Nihei, leg ” ; 9 males and 8 females labeled: “ Brasil, SP, S. J. dos Campos , Distr. S. Francisco Xavier, 08–12.xii.2004, ca. 1400 m alt., Fazenda Mandala, M. P. Bolfarini leg. ” ( UBTU). Specimens preserved in ethanol 80%.

Distribution. Brazil, state of São Paulo.

Diagnosis. This species can be distinguished from other Eidmanacris by the following characters: antenomeres medium brown, with whitish band composed of about 5 antenomeres, increasing in number toward tip of antenna; posterior portion of metanotum very pubescent; anterior half of basitarsi light brown, posterior half dark brown; lateral-posterior projections of Supra-anal plate longer than posterior margin; inferior projection of apex of pseudepiphallic arm hook-shaped, curved inwards.

Redescription. Head. Medium to dark brown. Occiput with central maculae light brown, light brown band going from occiput to margin of each eye; vertex medium to dark brown, with three light brown longitudinal lines, in dorsal view ( Fig. 9C ). Fastigium medium to dark brown, with two rows of bristles, slightly longer than wide, narrowed toward apex, separated from vertex by line forming a “V” ( Fig. 9C ). Frons light brown, with three dark brown longitudinal bands, two below eyes and antennal scape and another above clypeus ( Figs. 9A, B ). Three ocelli present, well developed, forming isosceles triangle, central one flattened at bottom, lateral one elliptical ( Figs. 9A, B, C ). Eyes with unpigmented small area on supero-internal angle ( Fig. 9C ). Maxillary palpi long and thin, slightly pilose, medium brown, distal portion of joints white; joints 3, 4 and 5 almost same-sized ( Fig. 9H ); apex of joint 5 upcurved. Gena light brown, posterior margin medium to dark brown in lateral view ( Fig. 9B ). Frontoclypeal suture yellowish brown to pale yellow; clypeus light brown, with dark brown central band in upper margin, in frontal view; labrum whitish, lower portion light brown. Mandible light brown, inner margin dark brown. Antennal scape light brown, inner margin dark brown ( Fig. 9A ); antenomeres medium brown with whitish band composed of c.a. 5 antenomeres, increasing in number toward the end of antennae.

Thorax. Pronotum DD wider than long, dark brown, with sparse dark spots and maculae, slightly pubescent, inflated, divided by very tiny light brown sagittal line ( Fig. 9C ); DD cephalic margin slightly concave, caudal margin sub straight ( Fig. 9C ); ventro-cephalic angle rounded, lighter than DD, ventro-caudal margin gradually ascendant ( Fig. 9B ).

Legs. FI and II yellowish brown to light yellow, annulated with dark brown. TI and II yellowish brown, TI with two same-sized apical spurs; TII with two inner apical spurs and one outer, smaller. FIII yellowish brown, with medium brown thin stripes on outer surface, apical third medium brown ( Fig. 9D ). 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 anterior half light brown, posterior half medium to dark brown.

Abdomen. Fusiform in dorsal view, medium to dark brown, divided by light brown sagittal line.

Male. Medium sized body, general coloration dark brown. Male FWs medium to dark brown, inner margin light brown, reticulated, elongated, apex rounded; 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. 9C ); inner margins not touching each other; FWs covering metanotal gland, surpassing metanotum posterior border ( Fig. 9B, C ). Metanotal gland present, anteromedian crest forming inverted triangle with cluster of bristles; lateral projections short, cylindrical, parallel ( Figs. 9F, G ), posterior portion of metanotum very pubescent. Supra-anal plate light brown, anterior margin dark, slightly concave, pubescent; lateral-posterior projections longer than posterior margin, light brown; posterior margin somewhat rounded ( Fig. 9I ). Subgenital plate longer than wide, with lateral pubescence, laterally medium to dark brown and centrally whitish; anterior margin almost straight, posterior margin straight, with central, small invagination ( Fig. 9K ).

Phallic complex ( Figs. 10A–C ; 11A–C). Pseudepiphallus: central and lateral portions of base of pseudepiphallic sclerite with same thickness, in dorsal view; pseudepiphallic arms sclerotized, hard, slightly upcurved in lateral view; apex of pseudepiphallic arm with bristles on outer surface, superior and supero-internal projections reduced to spine, inferior projection hook shaped curved inwards; anterior projection of pseudepiphallic sclerite very short, distally pointed; PsP2 hardly sclerotized, not surpassing 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 elongated; ectophallic arc located below base of pseudepiphallic sclerite in dorsal view; ventro-posterior projection elongate; dorsal projection sclerotized, short. Endophallus: median-projection of pseudepiphallic sclerite elongated, not surpassing PsP2 apex, anterior portion wider in ventral view; lateral-posterior lobes of endophallic sclerite elongate; endophallic apodeme elongated, reaching apex of ectophallic apodeme.

Female. Larger than male, general coloration similar ( Fig. 9E ). Supra-anal plate medium brown, posterior border dark, anterior margin slightly concave, posterior margin rounded with long bristles ( Fig. 9J ). Subgenital plate light brown with whitish maculae on anterior margin, wider than long, anterior margin sub straight, posterior margin rounded with central, small concavity ( Fig. 9L ). Ovipositor as in figs. 9M, N.

Copulatory papilla ( Figs. 11D–F ). Hard sclerotized, as long as wide, cylindrical, anterior margin membranous, posterior margin somewhat rounded in dorsal and ventral views.

Measurements (mm). Male (n=10): Hw, 2.77 ± 0.18 (2.48–3.1); iod, 1.3 ± 0.08 (1.12–1.43); Lpron, 2.9 ± 0.19 (2.48–3.16); awpron, 2.87 ± 0.15 (2.67–3.1); pwpron, 3.04 ± 0.24 (2.42–3.35); wpron, 3.93 ± 0.3 (3.29–4.4); LFW, 3.78 ± 0.18 (3.47–4.09); wFW, 1.59 ± 0.23 (1.24–1.98); LFIII, 12.46 ± 0.64 (10.95–13.05); wFIII, 2.88 ± 0.15 (2.55–3); LTIII, 13.53 ± 0.74 (12–14.55); Ltars 1-III, 4.36 ± 0.43 (3.6–5.1).

Female (n=10): Hw, 3.16 ± 0.10 (2.98–3.35); iod, 1.45 ± 0.08 (1.3–1.55); Lpron, 3.45 ± 0.21 (3.1–3.72); awpron, 3.19 ± 0.18 (2.91–3.41); pwpron, 3.54 ± 0.27 (2.98–3.9); wpron, 4.48 ± 0.23 (4.09–4.84); LFIII, 14.92 ± 0.76 (13.35–16.2); wFIII, 3.46 ± 0.14 (3.15–3.6); LTIII, 15.4 ± 0.55 (14.25–16.05); Ltars 1-III, 4.3 ± 0.31 (3.75–4.8); OL, 13.74 ± 0.55 (13.05–14.55).

Figures

FIGURE 9. Eidmanacris alboannulata (Piza). Male and female topotypes. 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 10. Eidmanacris alboannulata (Piza). Paratype. Male phallic complex: A — dorsal; B — ventral; C — lateral. Scale bar: 0.5 mm.

FIGURE 11. Eidmanacris alboannulata (Piza). Male and female topotype. Male phallic complex: A — dorsal; B — ventral; C — lateral. Female copulatory papilla: D — dorsal; E — ventral; F — lateral. Scale bar: 0.5 mm.