Anurogryllus (Urogryllus) oaxaca, Горохов, 2019
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publication ID |
https://doi.org/ 10.33910/2686-9519-2019-11-4-279-308 |
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persistent identifier |
https://treatment.plazi.org/id/EC70EF23-FFF2-FFD8-FF23-BAE0DC82882F |
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treatment provided by |
Felipe |
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scientific name |
Anurogryllus (Urogryllus) oaxaca |
| status |
sp. nov. |
Anurogryllus (Urogryllus) oaxaca View in CoL sp. nov.
( Figs 17–20 View Figs 13–52 , 57, 58 View Figs 53–64 , 65–67 View Figs 65–76 , 102 View Figs 100–119 )
http://zoobank.org/ NomenclaturalActs/ 95F3B227-14FD-4D34- A773-B20133A8215C
Material. Holotype — male, Mexico, Oaxaca State, 35 km NNE of Santa Cruz Huatulco Town (10 km N of Xadani Vill.), 900–1000 m, secondary forest, 7– 11.05.2006, A. Gorochov & M. Berezin ( ZIN) . Paratypes: 1 male, 1 female, same data as for holotype ( ZIN) .
Description. Male (holotype). Body medium-sized for this genus. Colouration generally brown, but head with dark brown epicranium and light brown most part of both labium and maxillae (including their palpi), pronotum also almost dark brown and more pubescent (less shining) than head, legs with almost dark brown distal part of hind femur and proximal part of hind tibia (borders between darker and lighter parts of these structures indistinct) as well as dorsal denticles of hind basitarsus, tegmina with dorsal field having lighter (light brown) semitransparent M–CuA and partly CuA–CuP areas as well as with light brown lateral field having brown band along dorsal edge and almost whitish band along ventral edge, abdominal tergites and anal plate as well as paraprocts almost dark brown, and cerci with light brown proximal parts. Head almost semiglobular, with ocelli moderately small, located in corners of transverse triangle, and with rostrum between antennal cavities ~1.6 times as wide as scape; pronotum approximately as wide as head, slightly transverse, with weakly concave anterior and almost straight posterior edges of disc ( Fig. 57 View Figs 53–64 ), and rather high lateral lobes having ventral edges almost parallel to dorsal edges; legs moderately stout, with fore tibia having elongate and oval outer tympanum only, with hind femur strong (well-adapted to jumps), with hind tibia having six pairs of articulated spines and three pairs of apical spurs, and with hind basitarsus having 7–8 outer and six inner dorsal denticles as well as a pair of apical spurs; tegmina reaching middle of fifth abdominal tergite, with three oblique veins, almost longitudinal and weakly curved both diagonal vein and chords situated in medial half of dorsal field near each other, rather large and clearly transverse mirror having one longitudinal crossvein only, short apical area having traces of two transverse branches and widely rounded posterior edge, and lateral field having 7–8 more or less longitudinally parallel veins and poorly distinct crossveins between them ( Figs 57 View Figs 53–64 , 102 View Figs 100–119 ); hind wings rudimentary; anal and genital plates simple, but first plate almost triangular with rounded apex, and second plate elongate (almost 1.5 times as long as anal plate) as well as gradually narrowing to roundly angular apex; genitalia ( Figs 65–67 View Figs 65–76 ) with posterolateral lobes of epiphallus thin (narrow in profile), with anteromedian epiphallic lobe as in Fig. 17 View Figs 13–52 , with ectoparameres having rounded widening at apex ( Fig. 18 View Figs 13–52 ), and with sclerotized apical part of rachis narrow and slightly bifurcate; Fig. 19 View Figs 13–52 ).
Variations. Second male with tegmina having two oblique veins, two somewhat reduced dividing veins in mirror and two longitudinal veins in lateral field (two latter veins partly fused with each other), with hind basitarsus having nine outer and five inner dorsal denticles, and with male genitalia having sclerotized apical part of rachis somewhat more deeply notched ( Fig. 20 View Figs 13–52 ).
Female. General appearance ( Fig. 58 View Figs 53–64 ) as in males, but: tegmina almost completely light brown, reaching base of first abdominal tergite, well separated from each other, with rounded edges and 12–13 longitudinal veins (lateral field with five arcuate veins; dorsal field with 7–8 almost irregular veins and traces of crossveins between them); pterothoracic tergites brown to almost dark brown; hind basitarsus with 5–6 inner and eight outer dorsal denticles. Genital plate almost square but slightly narrowed in distal part and with distinctly concave posterior edge; ovipositor approximately equal to hind femur in length and with acute apex.
Length in mm. Body: male 17.5–19.5, female 19; pronotum: male 3.4–3.8, female 4; tegmina: male 6.5–7, female 2; hind femora: male 11.5–12.5, female 12; ovipositor 12.
Comparison. The new species is most similar to A. (U.) toltecus ( Saussure 1874) from “Cordillère orientalis” ( Saussure 1874) in Mexico ( Fig. 108 View Figs 100–119 ), but it is distinguished from the latter species by the mirror of male tegmen distinctly less transverse (~1.3 times as wide as long; vs. ~1.8 times as wide as long), female tegmina much shorter (pronotum ~2 times as long as tegmen; vs. they almost equal to each other in length), and ovipositor approximately equal to the hind femur in length (vs. this femur ~1.4 times as long as ovipositor). From some Caribbean congeners with the male tegmina similar, A. (U.) oaxaca differs in the mirror of these tegmina less transverse or more transverse, posterolateral lobes of epiphallus narrower in profile, or region of oblique veins (harp) in the male tegmina clearly less transverse.
Etymology. The new species is named after the Oaxaca State in Mexico where it was collected.
| ZIN |
Russian Academy of Sciences, Zoological Institute, Zoological Museum |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.