Anurogryllus (Urogryllus) mataracu, Горохов, 2019

Горохов, А. В., 2019, Преąваритеλьная Гипотеза Об Истории Поąсемейства Gryllinae (Orthoptera: Gryllidae) В Америке И Новые Таксоны Поąтрибы Anurogryllina И Роąа, Amurian Zoological Journal XI (4), pp. 279-308 : 296-297

publication ID

https://doi.org/ 10.33910/2686-9519-2019-11-4-279-308

persistent identifier

https://treatment.plazi.org/id/EC70EF23-FFEA-FFC1-FF18-BC05DEEC89DA

treatment provided by

Felipe

scientific name

Anurogryllus (Urogryllus) mataracu
status

sp. nov.

Anurogryllus (Urogryllus) mataracu View in CoL sp. nov.

( Figs 21–24 View Figs 13–52 , 81–84 View Figs 77–87 , 94–96 View Figs 88–99 , 105 View Figs 100–119 )

http://zoobank.org/NomenclaturalActs/ C244B0F3-51DC-47C3-A355-5D2DCD4C902F

Material. Holotype — male, Bolivia, Santa Cruz Prov., ~ 70 km NWW of Santa Cruz City, Amboro National Park , Mataracu Camp , ~ 800 m, primary forest, 8– 13.02.2014, A. Gorochov ( ZIN) . Paratypes: 2 males, 2 females, same data as for holotype ( ZIN) .

Description. Male (holotype). Body medium-sized. Colouration of epicranium reddish brown with dark brown area between ocelli and a pair of dots in dorsolateral corners of clypeus, a few poorly distinct darkish longitudinal lines on dorsum, light brown lower part of epicranium, and yellowish ocelli as well as small areas around lateral ocelli and under median ocellus; antennae greyish brown with small lightish spots on scape and at base of flagellum; subgenae and rest of mouthparts light brown with yellowish palpi and visible parts of maxillae and labium; pronotum brown with disc having reddish stripe along anterior edge and two pairs of spots behind it ( Figs 81, 82 View Figs 77–87 ); legs light brown with brown distal part of hind femur and yellowish areas on all coxae; other tergites uniformly dark brown; sternites light brown with brown last sternite and lateral areas on abdominal sternites; anal and genital plates as well as paraprocts and cerci greyish brown. Head typical of this genus in shape ( Fig. 81 View Figs 77–87 ); rostrum between antennal cavities approximately 1.4 times as wide as scape; ocelli locat- ed in corners of transverse triangle, with lateral ocelli moderately small and round, and with median ocellus somewhat wider (transverse); pronotum slightly transverse, with moderately high lateral lobes having their ventral edges almost parallel to dorsal ones; legs moderately long but stout, without tympana, with widened hind femora (adapted to strong jumps), with six inner and five outer dorsal spines on hind tibia, and with 6–7 outer and 5–6 inner dorsal denticles on hind basitarsus; tegmina very strongly shortened, scale-like, reaching base of metanotum (barely visible behind pronotum), and with a few almost straight and poorly distinct longitudinal veins ( Figs 82 View Figs 77–87 , 105 View Figs 100–119 ); anal plate typical of this subgenus; genital plate almost 1.5 times as long as anal plate, with distal half gradually narrowing to roundly angular apex; genitalia ( Figs 94–96 View Figs 88–99 ) similar to those of A. (U.) oaxaca , but posterolateral epiphallic lobes with wider proximal half and acute distal part in profile, anteromedian epiphallic lobe rather long and with more or less rounded apex having small median notch ( Fig. 21 View Figs 13–52 ), apical widening of ectoparameres with more distinct posteromedial tubercle and less projected posterolateral (lobe-like) convexity ( Fig. 22 View Figs 13–52 ), and rachis with distal part lacking distinct apical notch ( Fig. 23 View Figs 13–52 ).

Variations. Other males ( Figs 83, 84 View Figs 77–87 ) with head dorsum and area between ocelli almost uniformly brown, pronotum dark with light brown to brown both anterior stripe and one pair of spots behind it on disc, lateral ocelli slightly larger, legs and abdomen barely light- er, and armament of hind legs insignificantly varied; but one male with anteromedian epiphallic lobe somewhat shorter and wider as well as more deeply notched at apex ( Fig. 24 View Figs 13–52 ).

Female. General appearance as in males paratypes, but: dorsum of head with traces of lightish longitudinal lines; in one female, pronotum with lighter (brown) posterior part of disc, colouration of hind femur as in holotype, and abdomen with lightish median line on dorsum; in second female, pronotum without lighter stripe along anterior edge. Genital plate distinctly shorter and narrower than last sternite but slightly transverse and narrowing to widely and roundly notched apex (this notch very shallow); ovipositor distinctly shorter than hind femur.

Length in mm. Body: male 15–17, female 15–20; pronotum: male 3.3–3.7, female 3.6– 3.8; visible parts of tegmina: male 0.3–0.5, female 0.2–0.8; complete tegmina in both sexes probably about 1.2; hind femora: male 12–13, female 12.5–13; ovipositor 8.5–9.

Comparison. The new species is distinguished from all Urogryllus species by the subapterous body as well as the absence of stridulatory apparatus and tympana in both sexes. From apterous A. hierroi and subapterous A. ellops (they belong or possibly belong to Pilosogryllus ), the new species differs in the male genitalia typical of Urogryllus (see generic and subgeneric key for Anurogryllina above); and from apterous A. brevicaudatus and subapterous A. abortivus (their male unknown) included here in Anurogryllus s. str., A. mataracu differs in the ovipositor much longer.

Etymology. The new species is named after the Mataracu Camp , its type locality.

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Gryllidae

Genus

Anurogryllus

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