Oncodopus zonatus Brongniart, 1897,

Ünal, Mustafa & Beccaloni, George W., 2017, Revision of the Madagascan genera Oncodopus Brongniart and Colossopus Saussure (Orthoptera: Tettigoniidae: Conocephalinae; Euconchophorini), with description of Malagasopus gen. nov., Zootaxa 4341 (2): 196-199

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https://doi.org/10.11646/zootaxa.4341.2.2

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lsid:zoobank.org:pub:05152B19-56AA-4CCD-A3C6-53EA3369A54C

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scientific name

Oncodopus zonatus Brongniart, 1897
status

 

Oncodopus zonatus Brongniart, 1897 

( Figs. 1, 4, 7View FIGURES 1 – 9, 10–19View FIGURES 10 – 19, 110View FIGURES 109 – 111, 112View FIGURES 112 – 119)

http://lsid.speciesfile.org/urn:lsid: Orthoptera  .speciesfile.org:TaxonName:15096

Oncodopus zonatus: Brongniart 1897: 207  ; Saussure 1899: 626; Kirby 1906: 270; Karny 1912: 39; Chopard 1948: 125; Otte 1997: 32; Ünal & Beccaloni 2008: 35.

Type locality. Madagascar, Mozondeva (Morondava). Lectotype male, here designated, in alcohol ( MNHN). 

Redescription. Male: Body size quite variable ( Tab. 2). Fastigium of vertex ( Figs. 1View FIGURES 1 – 9, 10, 11View FIGURES 10 – 19) forming a simple short horn, spiniform; almost conical, upper surface flattened with a wide furrow, 2.2 times longer than diameter of eye, its basal part broader than antennal scape. Fastigium of frons ( Fig. 11View FIGURES 10 – 19) with a short spiniform slightly downcurved tooth. Pronotum ( Figs. 10, 11View FIGURES 10 – 19) large, anterior margin narrow and convex, widened in middle, posterior margin with a distinct median incision; 3.7 times longer than its height, and only 1.1 times longer than its width. Prothoracic auditory spiracle large, partially concealed under pronotum. Opening of mesothoracic auricle large and elliptical; ventral lobe distinct. Fore coxa with an elongate spine, projected forward dorsally. Fore femur ( Fig. 10View FIGURES 10 – 19) very muscular, short and broad; with a large inner spine on anterio-lateral margin; inner margin with 5–7 strong spines ventrally. Fore tibia ( Fig. 10View FIGURES 10 – 19) with very strong, curved 4 inner spines ventrally; its outer side with smaller 4– 5 spines. Prosternum with 2 long, U-shaped spines. Mid femur with 2–5 outer spines ventrally. Hind femur with 4– 8 ventral spines on outer side. Mid and hind tibia bear ventral spines. Hind tibia without apical spur dorsally ( Fig. 7View FIGURES 1 – 9). Tegmina ( Figs. 10–12View FIGURES 10 – 19) fully concealed under pronotum, their apex visible in some specimens, reaching to half of metanotum. Abdomen ( Fig. 12View FIGURES 10 – 19) large, mostly oval, anterior and posterior parts narrow, mid part broad. Last tergite ( Fig. 13View FIGURES 10 – 19) short and broad, posterior margin convex with a small median notch. Cercus ( Fig. 14View FIGURES 10 – 19) with a short, incurved apical tooth, inner arm very long with a distinct tooth at apex. Subgenital plate ( Fig. 15View FIGURES 10 – 19) simple, with a very short styli.

Female: As male. Hind margin of pronotum ( Fig. 16View FIGURES 10 – 19) with a strong and broadly rounded incision. Tegmina ( Fig. 17View FIGURES 10 – 19) strongly reduced, small scale like laterally, not reaching halfway down of mesonotum. Cercus simple, basal half cylindrical, apical half conical. Subgenital plate ( Fig. 19View FIGURES 10 – 19) almost triangular with a distinct median carina, its posterior margin with a small median notch. Ovipositor ( Fig. 18View FIGURES 10 – 19) slender, slightly upcurved, almost 1.2–1.3 times longer than hind femur.

Colour (dry specimens). Body milky brown with distinct transverse dark bands in typical form. Head dark except fastigium of vertex, eyes and posterior margin of occiput. Anterior margin of pronotum with a narrow dark band; posterior part, (mainly of the metazona) dark, remaining part milky brown. Fore tibia light brown with indistinct longitudinal dark stripes. Apical half of femora dark. Abdominal tergites with distinct dark band on posterior margin. Male subgenital plate and cercus milky brown. Ovipositor reddish brown in apical part.

Diagnosis. This species appears to be most closely related to O. janetae  sp. nov. based on the structure of head, last tergite of male, female subgenital plate, the variable body size. But this species differs from it by the structure of pronotum, male cercus (with long inner arm) and colouration (body and pronotum with transverse dark bands) in typical form. It is also near to O. brongniarti  sp. nov. based on its colouration (with distinct transverse bands) and male cercus with long inner arm. However, the male cercus is different to that of brongniarti  (apical arm distinctly pointed with a tooth), as is the male last tergite with a wide median incision on posterior margin.

Material examined. Madagascar, Mozondeva ( Morondava ), 1891, 2 male nymphs (Lecto- and paralectotype), (leg. M. Grandidier et M. Doulliot), in alcohol  ; Madagascar , 1867, 2 male nymphs (leg. M. Grandidier)  ; Madagascar (S.O.), Forets du Fiher [en]ana, 1905, 1 male (leg. F. Geay); Prov. de Tulear, Bas Fiher [en]ana, 4 males, 8 females (leg. F. Geay); Madagask. , 1 female (leg. M. Grandidier)  ; Madagascar, Ikongo , 1902, 1 male (leg. M. Grandidier)  ; Madagascar Sud, Akiliazivo , 25.11.1963, 2 males, 1 female (leg. D. Wintrebert) (all in MNHN)  . Madagascar, Morondava , February 2004, 1 male, in dead tree  ; Madagascar, Toliara Province, Zombitse-Vohibasia National Park , (-22.60, 44.81) [22 ° 36'0'' S, 44 ° 48'36'' E], 17.11.2004, Coll. G.W. Beccaloni, 1 male, 1 female, in forest near park headquarters, under bark of dead treeGoogleMaps  ; Madagascar, Toliara Prov., c. 20 km North of Belo Sur Tsiribihina (on main road north), 19 ° 30'08.72" S, 44 ° 30'25.17" E, 15.11.2007, Coll. G.W. Beccaloni, 3 males, 2 females, under bark of dead tree (all in NHMUK)GoogleMaps  . SW Madagascar, Tulear , March 1904, 1 male (leg. S. Voltzkow) ( ZMB)  . Madagascar, Toliara Prov., Lake Ranobe , elev. 30 m, 23 ° 00'629" S, 43 ° 336' E, 2–10 May 2003, 1 male nymph (leg. Frontier, Wilderness), grassland, transitional spiny-tamarind forest  ; Toliara Prov., Fiheranana [ Fiherenana ], elev. 65 m, 23 ° 13'351" S, 43 ° 52'853" E, 5–7 August 2003, 1 male nymph (leg. Frontier & Wilderness), leaf litter extraction degraded riparian forest close to water (all in CAS)  .

Measurements (mm). Lectotype (male) is a nymph. See Table 2 for the range of measurement of the adults.

Distribution. S.W. of Madagascar ( Fig. 110View FIGURES 109 – 111). Toliara Province: Morondava, Toliara, Ikongo, Akiliazivo, Zombitse-Vohibasia N.P., Belo Sur Tsiribihina, Fiherenana, Lake Ranobe.

Habitat. This species is known to occur in spiny forest and dry deciduous forest habitats as well as in riparian forest. Individuals have been found resting under the bark of dead trees and one nymph was extracted from leaf litter.

Phenology. Adults of this species have been found between November and March, and nymphs in May and August.

Remarks. The body size is highly variable in this species (see Table 2). Piotr Naskrecki (pers. commun., 2005) believes that the largest males may be 'satellite males'. This variation in size amongst the adults of a species is also seen in some of the other species of Oncodopus  (see Table 2).

MNHN

Museum National d'Histoire Naturelle

NHMUK

Natural History Museum, London

ZMB

Museum f�r Naturkunde Berlin (Zoological Collections)

CAS

California Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tettigoniidae

Genus

Oncodopus

Loc

Oncodopus zonatus Brongniart, 1897

Ünal, Mustafa & Beccaloni, George W. 2017
2017
Loc

Oncodopus zonatus: Brongniart 1897 : 207

Unal, M. & Beccaloni, G. W. 2008: 35
Chopard, L. 1948: 125
Karny, H. H. 1912: 39
Kirby, W. F. 1906: 270
Saussure, H. 1899: 626
Brongniart, C. 1897: 207
1899