Temnomastax descampsi Olivier, 2019

Olivier, Renan S., Pujol-Luz, Cristiane V. A. & Graciolli, Gustavo, 2019, Review of Temnomastax Rehn & Rehn, 1942 (Orthoptera, Caelifera, Eumastacidae, Temnomastacinae), Zootaxa 4593 (1), pp. 1-78 : 52-55

Temnomastax descampsi Olivier sp. nov.

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:499769

Figures 4E , 5E , 6E , 7F , 8E , 9D , 11A , 12E , 13E , 14E , 15E , 19A and 30

Temnomastax borellii [in part] Rehn & Rehn 1942: 13 (identification key), 16 ( Figures 4 and 10 ); Descamps 1973a: 219 (Figure 45), 278 (Figures 389–394); 1973b: 964 (record), 966 (Figure 65), 968 (Figure 67 and identification key); Olivier 2014: 458 (identification key), 460 ( Figure 8 ).

Temnomastax sp. nov. 1, Olivier & Aranda 2018: 268 –275 (morphometric analysis).

Type-series. Holotype ♂ — HOLOTYPE (printed on red paper)\ Temnomastax descampsi sp. nov. (Renan Olivier det. VI.2017)\ Brasil, Mato Grosso, Chapada dos Guimarães, I.2013 (Patiu & Mello-Patiu col.) [MNRJ]; Allotype ♀ — ALLOTYPE (printed on red paper)\ Temnomastax descampsi sp. nov. (Renan Olivier det. VI.2017)\Etat Mato Grosso, Chapada dos Guimaraes, 25.I.1972 \Muséum Paris, Bresil, M. Descamps rec.\ Temnomastax borellii ( Giglio-Tos, 1897) \MNHN-EO-CAELIF 4052 [MNHN]; 49 Paratypes ♀ and 13 Paratypes ♂ — PARATYPE (printed on yellow paper)\ Temnomastax descampsi sp. nov. (Renan Olivier det. VI.2017)\Etat Mato Grosso, Chapada dos Guimaraes, 25.I.1972 \Muséum Paris, Bresil, M. Descamps rec.\ Temnomastax borellii ( Giglio-Tos, 1897) \ Females coded as MNHN-EO-CAELIF 4052 and Males coded as MNHN-EO-CAELIF 4051 [MNHN]; 2 Paratypes ♂ — PARATYPE (printed on yellow paper)\ Temnomastax descampsi sp. nov. (Renan Olivier det. VI.2017)\ Brasil, Mato Grosso, Chap. dos Guimarães, Vale do Eco—Cerrado, 15°24’S / 55°50’W (van Someren modf.—isca artificial [modified van Someren trap—artificial bait]), 12.I.2012, SISBIOTA CNPq/FAPESP (Mello Patiu & Patiu col.) [MNRJ]; 8 Paratypes ♂ — PARATYPE (printed on yellow paper)\ Temnomastax descampsi sp. nov. (Renan Olivier det. VI.2017)\ Brasil, Mato Grosso, Chapada dos Guimarães—Cerrado, 15°24’21.8”S / 55°50’07.5”W, 15–23.I.2012, SISBIOTA CNPq/FAPESP (Mello Patiu & Patiu col.) [MNRJ and ZUFMSORT00698, 699].

Type locality. Chapada dos Guimarães, Mato Grosso, Brazil .

Depository. Holotype and nine Paratypes ♂: Museu Nacional da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil . Allotype and 62 Paratypes ♂: Muséum national d'Histoire naturelle, Paris, France. Two Paratypes ♂: Coleção Zoológica de Referência da Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil .

Etymology. Specific epithet after Dr. Marius Descamps for his immeasurable contribution to the study of South American Eumastacidae .

Diagnosis. Medium (♂  21.70 mm, ♀ = 25.23 mm). This species differs from the other three of Tigris group by its short elliptical tegmina of male with 2.0x the pronotum length. Male epiproct entirely narrow. Male cerci with an odontiform process in the ventroapical region. LPjEp with membranous ornamentation on the posterior face. Posterior region of epiphallus without upward curvature in lateral view, lowered in relation to the anterior region. Female subgenital plate with many cuticular striations, and its posterior margin rounded and broadly projected backward.

Description. Male ( Figure 19A ). HOLOTYPE \ Temnomastax descampsi sp. nov. (Renan Olivier det. VI.2017)\ Brasil, Mato Grosso, Chap. dos Guimarães, Vale do Eco—Cerrado, 15°24’S / 55°50’W (van Someren modf.—isca artificial), 12.I.2012, SISBIOTA CNPq/FAPESP (Mello Patiu & Patiu col.) [MNRJ]. Measurements (mm): bd 22.40, pt 2.69, tg 5.45, hf 15.10, ht 16.22.— Head: Subtriangular in frontal view ( Figure 4E ). Antennae (3.73). Fastigium (0.30 mm). Eyes slightly protruding in frontal view ( Figure 4E ). Frons, clypeus and labrum yellow ( Figure 4E ). Mandibular joints light brown. Mandibles yellow. Thorax: Pronotum: Slightly sellate, posterior region of pronotal disk slightly upward curved in lateral view ( Figure 6E ). Posterior margin of pronotal disk fissured centrally ( Figure 6e ). Thoracic sternites yellow. Wings: Brachypterous (tg / hf 0.36). Tegmina elliptical; reaching the 3 rd abdominal tergite (2.0x the pronotum length); Rp arising from Ra in the medio-distal region; M sinuous, simple, reaching the apex; 1Cu reduced, reaching the median region; 2Cu present, weakly marked, apparently arising from proximal region of 1Cu and fused to 1Cu apically; 1A and 2A well marked, 3A reduced, 4A and 5A vestigial ( Figure 7F ). Membranous wings with four lobes when extended (remigium + three anal lobes); M diverging from R+M in the median region, with angulation of approximately 45 degrees; 1Cu present, sinuous in the ½ distal; VD fused to i distally; 1A–3A well marked, 4A reduced; 1a and 2a well marked ( Figure 7f ). Legs (Right/Left): Ventral face of protibiae with 7/7 outer spines and 7/6 inner spines. PrTm1 with approximately 2.0x the length of PrTm2. Ventral face of mesotibiae with 7/7 outer spines and 6/7 inner spines. MsTm1 with approximately 2.0x the length of MsTm2. Dorsal face of metatibiae with 26/26 inner spines and 25/25 outer spines. MtTm1 with approximately 2.5x the length of MtTm2. Abdomen: Posterior-ventral regions of the 9 th and 10 th abdominal tergites as in the Figure 8E . Epiproct entirely narrow from the base to the apex, lateral margins very folded downward, apex little rounded ( Figure 8e ). Cerci laterally compressed, dorsal edge with wide curvature, but not uniformly rounded, ventro-apical region with an odontiform process, apex not curved inward ( Figure 9D ). Membranous distal area of subgenital plate fusiform horizontally and distinctly rugose; one distinct central carina and two weak incomplete lateral carinae; posterior margin of subgenital plate slightly projected backward in lateral view ( Figure 8E ). Phallic complex: Epiphallus: Posterior region ahead of the LPjEp lowered in relation to the anterior region and not curved upward in lateral view ( Figure 11a ); LPjEp abruptly curved downward and apex with little sclerified expansion; posterior face of LPjEp with membranous ornamentation (MbOnEp) formed by numerous lobes ( Figures 10A, a ). Endophallus: Outer margin in the anterior region of endophallic plate bilobed, medial margins of lobes almost parallel; inner arc seemingly triangular, but with rounded vertices; branches slightly convergent and tips parallel in ventral view ( Figure 12E ); broad ventral curvature in lateral view, some evident ripples ventrally on the outer margin of branch ( Figure 12e ); spermatophore sac as in the Figure 12e ; ejaculatory sac horizontally elongated, anterior end rounded, posterior end less rounded and with slight posterior curvature until reach the endophallic plate ( Figure 12e ).

Female ( Figure 19A ) (based on photos). ALLOTYPE \ Temnomastax descampsi sp. nov. (Renan Olivier det. VI.2017)\Etat Mato Grosso, Chapada dos Guimaraes, 25.I.1972 \Muséum Paris, Bresil, M. Descamps rec.\ Temnomastax borellii ( Giglio-Tos, 1897) \MNHN-EO-CAELIF 4052 [MNHN]. Measurements (mm): bd 25.23, pr 2.83, tg 5.08, hf 15.73, ht 16.46.— Head: Antennae (2.94 mm). Fastigium (0.30). Thorax: Brachypterous (tg / hf 0.32). Posterior margin of pronotal disk rounded. Tegmina reaching the distal portion of the 2 nd abdominal tergite (1.8x the length of pronotum), elliptical. Spines on the pro-, meso-, and metatibiae not quantified; PrTm1 with approximately 2.0x the length of PrTm2; MsTm1 with approximately 2.0x the length of MsTm2; MtTm1 with approximately 2.5x the length of MtTm2. Abdomen: Posterior-ventral regions of the 8 th abdominal tergite with few cuticular striations ( Figure 13E ). Epiproct as in the Figure 14E . Paraprocts with the same length of epiproct. Cerci reaching the distal ⅓ of paraprocts ( Figure 14E ). Subgenital plate: With a gradient of colors from yellow in the anterior region to brownish in the posterior region; lateral regions partially covered by the ventral portions of the 8 th abdominal tergite, mainly in the medium anterior region ( Figure 15E ); cuticular striations present on the entire lateral regions and more marked in the medium posterior region ( Figure 15E ); posterolateral regions not exceeding the length of the 8 th abdominal tergite in lateral view ( Figure 13E ); posterior margin rounded and broadly projected backward, not smooth and with a wavy appearance in ventral and lateral views ( Figures 13E and 15E ). Ovipositor as in the Figure 13E . Other characters as in male.

Sexual dimorphism. hf ♀ / hf ♂ 1.07.

Measurements (mm). ♂ (n=11). bd 20.81–23.27 (21.70), pr 2.56–2.73 (2.62), tg 4.77–5.83 (5.28), hf 14.12– 15.29 (14.62), ht 15.02–16.60 (15.74); ♀ (n=1). bd 25.23, pr 2.83, tg 5.08, hf 15.73, ht 16.46.

Intraspecific variation. The central carina on male subgenital plate may be absent. Sometimes the anterior bilobed region of endophallic plate very similar to T. hamus .

Material examined. Brazil: Mato Grosso state: 24 ♂ and 50 ♀ of the type-series; 2 nymphs ♂ — Brasil, Mato Grosso, Chapada dos Guimarães, IX.1978 (Monné, Roppa e Becker)\ Coleção Campos Seabra \ T. descampsi Olivier, Olivier, R.S. det. 2017 [ MNRJ] .

Distribution. Known only from Chapada dos Guimarães region, in the state of Mato Grosso, Brazil ( Figure 30 ).

Biological notes. Some specimens were attracted by fish baits.

Remarks. Morphology: This topic is discussed above; see remarks section of T. borellii .

Figures

FIGURE 4. Head of males and females in frontal view. A—Temnomastax borellii (Giglio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax monnei Olivier sp. nov.; E— Temnomastax descampsi Olivier sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G—Temnomastax ricardoi Descamps, 1973; H—Temnomastax tigris (Burr,1899). Scale bar = 2 mm (Female E—MNHN-EO-CAELIF 4052, photo by Simon Poulain, CNRS-MNHN).

FIGURE 5. Head of males and females in lateral view. Black spot = absence of vision plane. A—Temnomastax borellii (Giglio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D— Temnomastax monnei Olivier sp. nov.; E—Temnomastax descampsi Olivier sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G—Temnomastax ricardoi Descamps, 1973; H—Temnomastax tigris (Burr, 1899). Scale bar = 2 mm.

FIGURE 6. Pronotum of males and females in lateral (uppercase letters) and dorsal (lowercase letters) views. Black spots = absence of vision plane. A—Temnomastax borellii (Giglio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C— Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax monnei Olivier sp. nov.; E—Temnomastax descampsi Olivier sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G—Temnomastax ricardoi Descamps, 1973; H—Temnomastax tigris (Burr,1899). Scale bar = 1 mm.

FIGURE 7. Tegmen (uppercase letters) and membranous wings (lowercase letters) of males of Temnomastax Rehn & Rehn, 1942. A—Temnomastax latens Rehn & Rehn, 1942; B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax ricardoi Descamps, 1973; D—Temnomastax borellii (Giglio-Tos, 1897); E—Temnomastax tigris (Burr, 1899), specimen from Bodoquena region; F—Temnomastax descampsi Olivier sp. nov.; G—Temnomastax otavioi Olivier sp. nov. Ra—anterior radius; Rp—posterior radius; Sc-cell—formed by the division and posterior union of the subcosta (Sc). Apostropheintraspecific variation. Scale bar = 2 mm.

FIGURE 8. Abdominal apex of males in lateral (uppercase letters) and dorsal (lowercase letters) views. A—Temnomastax borellii (Giglio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D— Temnomastax monnei Olivier sp. nov.; E—Temnomastax descampsi Olivier sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G—Temnomastax ricardoi Descamps, 1973; H—Temnomastax tigris (Burr, 1899). Scale bar = 2 mm.

FIGURE 9. Cercus of male (A–G) and female (H) of Temnomastax Rehn & Rehn, 1942. Columns from left to right show dorsal view, external lateral view, ventral view, and internal lateral view. Black spots = absence of vision plane. A— Temnomastax borellii (Giglio-Tos, 1897); B and H—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax descampsi Olivier sp. nov.; E—Temnomastax otavioi Olivier sp. nov.; F—Temnomastax ricardoi Descamps, 1973; G—Temnomastax tigris (Burr, 1899). Scale bar = 0.5 mm.

FIGURE 10. Phallic complexes of species belonging to Latens group. Uppercase letters—dorsal view, lowercase letterslateral view. A—Temnomastax borellii (Giglio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax monnei Olivier sp. nov. Scale bar = 1 mm (for dorsal view only).

FIGURE 11. Phallic complexes of species belonging to Tigris group. Uppercase letters—dorsal view, lowercase letterslateral view, apostrophe—dorsal view of the posterior region of epiphallus inclined 45° downward. A—Temnomastax descampsi Olivier sp. nov.; B—Temnomastax otavioi Olivier sp. nov.; C—Temnomastax ricardoi Descamps, 1973; D— Temnomastax tigris (Burr, 1899). MbOrEp—Membranous ornamentation on lateral projections of epiphallus. Scale bar = 1 mm (for dorsal view only).

FIGURE 12. Schematic drawings of the endophallic plate in ventral view (A–I) and endophallus in lateral view (a–h). A— Temnomastax borellii (Giglio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax monnei Olivier sp. nov.; E—Temnomastax descampsi Olivier sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G—Temnomastax ricardoi Descamps, 1973; H—Temnomastax tigris (Burr, 1899). I and i— Intraspecific variation in the anterior outer margin of the endophallic plate in T. tigris; I—specimens from Corumbá region; ispecimens from Bodoquena region. Scale bar = 0.5 mm.

FIGURE 13. Abdominal apex of females in lateral view. A—Temnomastax borellii (Giglio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax monnei Olivier sp. nov.; E— Temnomastax descampsi Olivier sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G—Temnomastax ricardoi Descamps, 1973; H—Temnomastax tigris (Burr, 1899). Scale bar = 2 mm. (E—MNHN-EO-CAELIF 4052, photography by Simon Poulain, CNRS-MNHN).

FIGURE 14. Abdominal apex of females in dorsal view (cerci, paraprocts, and epiproct). A—Temnomastax borellii (Giglio- Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax monnei Olivier sp. nov.; E—Temnomastax descampsi Olivier sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G— Temnomastax ricardoi Descamps, 1973; H—Temnomastax tigris (Burr, 1899). Scale bar = 1 mm. (E—MNHN-EO-CAELIF 4052, photography by Simon Poulain, CNRS-MNHN).

FIGURE 15. Female subgenital plates in ventral view. A—Temnomastax borellii (Gilio-Tos, 1897); B—Temnomastax hamus Rehn & Rehn, 1942; C—Temnomastax latens Rehn & Rehn, 1942; D—Temnomastax monnei Olivier sp. nov.; E— Temnomastax descampsi sp. nov.; F—Temnomastax otavioi Olivier sp. nov.; G—Temnomastax ricardoi Descamps, 1973; H— Temnomastax tigris (Burr, 1899), specimen from Corumbá region. Scale bar = 2 mm.

FIGURE 19. Habitus of species belonging to Tigris group. A—Paratype and Allotype of Temnomastax descampsi Olivier sp. nov.; B—Paratype and Allotype of Temnomastax otavioi Olivier sp. nov.; C—Temnomastax ricardoi Descamps, 1973; D— Temnomastax tigris (Burr, 1899) from Corumbá region. Scale bar = 1 cm. (Female A—MNHN-EO-CAELIF 4052, photography by Simon Poulain, CNRS-MNHN).

FIGURE 30. Distribution map of Temnomastax descampsi Olivier sp. nov. (blue triangle), Temnomastax tigris (Burr, 1899) (black circle) and Temnomastax otavioi Olivier sp. nov. (red rhombus).