Insara acutitegmina Fontana, Buzzetti, Mariño-Pérez and García-García

Fontana, Paolo, Buzzetti, Filippo Maria, Mariño-Pérez, Ricardo & García-García, Patricia Lucero, 2011, Three new species of Tettigoniidae from Mexico (Orthoptera: Tettigoniidae; Phaneropterinae; Insarini and Odonturini), Zootaxa 2879, pp. 22-32: 23-27

publication ID

http://doi.org/ 10.5281/zenodo.203427

persistent identifier

http://treatment.plazi.org/id/412387D8-FFE6-E644-978C-FE1AFC5C0DAA

treatment provided by

Plazi

scientific name

Insara acutitegmina Fontana, Buzzetti, Mariño-Pérez and García-García
status

 

Insara acutitegmina Fontana, Buzzetti, Mariño-Pérez and García-García 

Figs. 1 –13View FIGURES 1 – 6View FIGURES 7 – 13, 31View FIGURES 31 – 32, 44View FIGURE 44

Diagnosis. Male with short tegmina, about half than hind femur length, narrow with rounded apex. Male cerci subconical, straight, incrassate with small apical tooth.

Male description (based on male Holotype and two paratypes): Fastigium of vertex ( Figs. 1–4View FIGURES 1 – 6) narrow, laterally compressed, subhorizontal, with a decided medio-longitudinal sulcation in anterior portion, sides diverging posteriorly; fastigium of vertex in contact with facial fastigium, both anteriorly flat. Antennae filiform, very long, subcrassate proximad, with 2 nd antennal joint long more than half of 1 st joint. Pronotum ( Figs. 1–2View FIGURES 1 – 6) constricted in the meso-cephalic portion; dorsum flat, with distinct lateral carinae; posterior margin wider than anterior one, gently convex and a little incised in the middle; lateral lobes angularly inserted to disc, caudal margin of lobes sinuate and humeral sinus marked. Tegmina ( Figs. 10 –13View FIGURES 7 – 13, 31View FIGURES 31 – 32) abbreviate, about half than hind femur length, narrow, apically rounded. Wings present, shorter than tegmina. Abdomen dilated; abdominal segments dorsally angulated in the middle ( Figs. 6View FIGURES 1 – 6, 12View FIGURES 7 – 13); last abdominal tergite depressed in the middle ( Fig. 5View FIGURES 1 – 6). Epiproct ( Fig. 5View FIGURES 1 – 6) elongate, scutiform, with convex sides and subacute apex. Cerci ( Figs. 5–8View FIGURES 1 – 6View FIGURES 7 – 13) subconical, straight, incrassate, with small apical tooth directed meso-dorsal. Subgenital plate ( Fig. 9View FIGURES 7 – 13) subtrapezoidal, produced in articulate styliform appendages; distal margin between these appendages broadly sinuate-truncate. Cephalic and median femora apically carinate dorsally, genicular lobes produced, unispinose; genicular spines with rounded apex. Cephalic tibiae with proximal extremity much swollen, narrowing below tympanum that is open on both faces.

Colour. Two colour forms, brown and green ( Figs. 12, 13View FIGURES 7 – 13, 31View FIGURES 31 – 32). Brown form: general body colour brown; dorsum of pronotum whitish with dark lateral spots at cephalic and caudal margins; post-ocular vanishing dark bands. First abdominal tergite with two dorsolateral subrectangular dark spots; second and fourth abdominal tergites with median blackish band; fifth abdominal tergite with two lateral subtriangular dark spots. Tegmina brown with darker spots. Green form: general colour light green, dark spots and bands more or less as in brown form, but less defined or absent.

Female: unknown

Male measurements. Body length 25.3–26.9 (26.92 *; 26.35; 0.84); pronotum length 2.8 –3.0 (2.8 *; 2.86; 0.11); lateral lobe height 2.0– 2.4 (2.4 *; 2.16; 0.21); hind femur length 19.2–20.1 (19.23 *; 19.63; 0.47); tegmen length 9.9–10.17 (10.15 *; 10.07; 0.15) and tegmen width 1.67–1.7 (1.69 *; 1.68; 0,015).

Type material. Male holotype, Mexico, Chiapas. 1.5 km SE San Cristóbal de las Casas, Carr. 190, 2325 m, (16 ° 37 ’ 51 ’’ N; 92 ° 31 ’ 59 ’’W), 13.XII. 2006, leg. P. García-García & P. Fontana; same data, 1 male paratype; Mexico, Chiapas. Carr. 190, 20 km W of desv. Chincultik (La Trinitaria), 1557 m, (16 °08’ 24 ’’ N; 91 ° 57 ’00’’W), 14.XII. 2006, Coll. P. García-García & P. Fontana, 1 male paratype.

Type depository. Male Holotype, CNIN; 1 male paratype, CPF; 1 male paratype, CFMB.

Etymology. The species is named after the morphology of male tegmina, very narrow and acutely ending.

Remarks. Insara acutitegmina  n. sp., known only from Chiapas, Mexico (fig. 44), lives in undergrowth (brown morphs) as well in grass habitats (green morphs).

Insara oaxacae Fontana, Buzzetti, Mariño-Pérez and García-García  Figs. 14 –30View FIGURES 14 – 19View FIGURES 20 – 26View FIGURES 27 – 30, 32View FIGURES 31 – 32, 44View FIGURE 44

Diagnosis. Fastigium of vertex in both sexes (less evidently in female) with dorsal surface on three distinct levels; tegmina short, about 3 / 4 than hind femur length, wide, with rounded apex. Male cerci subconical, upcurved apically, with large apical tooth.

Male. Holotype: Fastigium of vertex ( Fig. 15View FIGURES 14 – 19, 23, 24View FIGURES 20 – 26) with dorsal surface on three distinct levels, with a decided medio-longitudinal sulcation in anterior portion, with sides diverging posteriorly, fastigium of vertex in contact with facial fastigium, both anteriorly flat. Antennae filiform, very long, subcrassate proximal, with 2 nd antennal joint long more than half of 1 st joint. Pronotum ( Figs. 14–15View FIGURES 14 – 19) constricted in the meso-cephalic portion, dorsum flat, with distinct lateral carinae in the cephalic portion; posterior margin wider than anterior, convex and a little incised in the middle; lateral lobes angularly inserted to disc with caudal margin arcuate and humeral sinus distinct. Tegmina ( Fig. 27View FIGURES 27 – 30) abbreviate, about 3 / 4 than hind femur length, wide, apically rounded. Wings present, a little longer than tegmina. Abdomen dilated; abdominal tergites medially acutely angulated; last tergite with a pronounced and extensive depression in the middle. Epiproct ( Fig. 18View FIGURES 14 – 19) scutiform, with convex sides and subacute apex. Cerci ( Figs. 18–21View FIGURES 14 – 19View FIGURES 20 – 26) subconical, apically flattened dorsoventrally and upcurved, apex with a robust tooth directed dorsad. Subgenital plate ( Fig. 22View FIGURES 20 – 26) subtrapezoidal, produced in very reduced articulate styliform appendages, distal margin between these appendages widely emarginated. Cephalic and median femora apically dorsally carinate; genicular lobes produced, unispinose or bispinose; genicular spines with rounded apex if unispinose, optionally with second spine smaller and acute. Cephalic tibiae with proximal extremity much swollen, narrowing below tympanum which is open on both faces.

Female: General characters as in male. Tegmina ( Fig. 28View FIGURES 27 – 30) abbreviate, about half the hind femur length, wide, apically rounded. Wings present. Ovipositor ( Fig. 29View FIGURES 27 – 30) sharply curved upward at base, apically roundly acuminate; dorsal margin and distal portion of ventral margin finely serrate. Subgenital plate of female elongate, scutiform, with apex angulate-emarginated; with a medio-longitudinal sulcus basally.

Colour. General colour ( Fig. 32View FIGURES 31 – 32) brown, with sparse dark spots. 7 th abdominal tergite ( Fig. 30View FIGURES 27 – 30) with 2 dorsolateral black spots. Tegmina ( Fig. 27, 28View FIGURES 27 – 30) with dark dots on tegmina margin in both sexes.

Male holotype measurements. Body length 29.3; pronotum length 3.3; lateral lobe length 2.4; hind femur length 21.5; tegmen length 15.3 and tegmen width 4.0.

Female measurements. Body length 28.6; pronotum length 3.2; lateral lobe length 2.4; hind femur length 20,1; tegmen length 12.0 and tegmen width 3.7.

Type material. Male Holotype, Mexico, Oaxaca. San Juan Tonaltepec, 1741 m, (17 ° 34 ’02’’ N; 96 ° 56 ’ 46 ’’W), 26.IX. 2009, leg. I. Castellanos-Vargas; female, Oaxaca. San José del Pacífico, 2325 m, (16 ° 10 ’ 12 ’’ N; 96 ° 29 ’ 24 ’’W), 29.IV. 2008, leg. F.M. Buzzetti.

Type depository. Male Holotype and female, CNIN.

Etymology. The species is named after its known distribution, actually restricted to Oaxaca state in Mexico.

Remarks. Insara oaxacae  n. sp. shares some characters with Brachyinsara Rehn & Hebard, 1914  , in particular the shape of the fastigium. To date Brachyinsara  includes only two described species, B. magdalenae Rehn & Hebard, 1914  (from Magdalena island in Baja California, Mexico) and B. hemiptera Hebard, 1939  (from California, San Diego County, U.S.A.). The peculiar characters of these two species preclude assignment of our new species to Brachyinsara  , although the generic classification of the Insarini  is quite complex and needs a major revision. Hopefully, this description will be of some value to future workers studying this group. Insara oaxacae  n. sp. is presently known only from two localities in Oaxaca ( Fig. 44View FIGURE 44).

CNIN

Coleccion Nacional de Insectos, Universidad Nacional Autonoma de Mexico

CPF

KwaZulu-Natal Nature Conservation Service