Anurogryllus (Anurogryllus) caraibeus abbreviatus, 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 : 298-300

Anurogryllus (Anurogryllus) caraibeus abbreviatus subsp. nov.

( Fig. 115 )

http://zoobank.org/NomenclaturalActs/ c540a510-fcbc-42b6-926c-25dec99c51bf

Material. Holotype — male, Mexico, Tamaulipas State, Gomez Farias, Los Cedros , 340 m, 04–05.2002, S. Trjapitsin ( ZIN) . Paratype — male, same data as for holotype ( ZIN) .

Description. General appearance very similar to that of A. (A.) carinatus including absence of inner tympanum, but dorsum of head with darkish longitudinal stripes similar to those of female of this species. Male tegmina with 48 teeth in stridulatory vein, with mirror almost as long as wide, and with length of apical area 0.9 times as great as mirror length and 0.9 times as great as mirror width; hind wings torn off or removed after flight period. Main differences from A. carinatus : genitalia with posterolateral epiphallic lobes somewhat narrower in profile, with distinctly shorter keel-like fold (f) running from posteroventral projection of epiphallus to base of this lobe ( Fig. 115 ), and with endoparameres having rather long anterior (proximal) apodemes (approximately as long as in A. pantanal ).

Variation. Paratype almost without darkish stripes on head dorsum; its male tegmina with 43–44 teeth in stridulatory vein, with mirror 1.1 times as long as wide, and with length of apical area 1.1 times as great as mirror length; its male genitalia with anterior endoparameral apodemes slightly longer than in holotype.

Female unknown.

Length in mm. Body 14.7–15.4; pronotum 2.9–3.1; tegmina 9–10; hind femora 9.5–10.

Comparison. This subspecies differs from the nominotypical subspecies in the body slightly smaller and male tegmina with distinctly shorter apical area; in A. (A.) caraibeus caraibeus comb. nov., which is understood here according to Otte & Perez-Gelabert (2009: A. muticus caraibeus ), the pronotum is 3.2–3.5 mm in length, and apical area of male tegmen is almost 1.4 times as long as mirror. The other characters of A. c. caraibeus (including body colouration, condition of inner tympanum, number of stridulatory teeth, shape of mirror and structure of male genitalia) are very similar to those of A. c. abbreviatus. The nominotypical subspecies is recorded by the above-mentioned authors from the Dominican Republic and Saba, and now it is tentatively indicated for Cuba [one female from “Vinyalis” in Cuba, 17.V.1967, D. Panfilov (ZIN)]. From some other species of this subgenus lacking inner tympanum but having the male genitalia almost identical, the new subspecies is distinguished by the clearly less numerous stridulatory teeth (from A. tapes with 59–73 teeth and A. arboreus with 63–78 teeth distributed in South Brazil and the USA, respectively; but condition of inner tympanum in the latter species is unknown) or by less transverse mirror in the male tegmen (from A. vanescens with mirror 1.25 times as wide as long, Lesser Antilles; A. guadaloupensis insufficiently described from another island of this archipelago is possibly a synonym of this species). From the other more or less understandable species of Anurogryllus s. str., A. c. abbreviatus differs in the absence of inner tympanum, male tegmina not shortened, or some characters of male genitalia (see its description above).

Etymology. This subspecies name is the Latin word “abbreviatus” (shortened), because this subspecies has the male tegmina with moderately short apical areas.

Figures

Figs 100–119. Mexigryllus, Anurogryllus and Megalogryllus: 100 — Mexigryllus huatulco sp. nov.; 101 — M. tuxtla sp. nov.; 102 — A. (Urogryllus) oaxaca sp. nov.; 103 — A. (U.) parvispeculum sp. nov.; 104 — A. (U.) pantanal sp. nov.; 105 — A. (U.) mataracu sp. nov.; 106 — A. (U.) minimus sp. nov.; 107 — A. (U.) tamaulipas sp. nov.; 108 — A. (U.) toltecus (Sauss.); 109 — A. (?) antillarum (Sauss.); 110 — A. (?) sp. (female of A. antillarum [?] according to Saussure); 111–114 — A. (Anurogryllus) carinatus sp. nov.; 115 — A. (A.) caraibeus abbreviatus subsp. nov.; 116 — Megalogryllus (Megalogryllus) clamosus Mesa et Garcia-Novo; 117 — M. (M.) molinai Chop.; 118 — M. (M.) angustulus sp. nov.; 119 — M. (M.) excellens sp. nov. Dorsal field of right male tegmen (100–104, 106–109, 116–119); posterior part of pronotum with visible parts of tegmina and mesonotum as well as with anterior part of metanotum, male (105); abdominal apex from side, female (111) and possibly male (110); distal part of epiphallus from side (112, 115); apex of both left ectoparamere (113) and rachis (114) from below. [109, 110 — after Saussure (1874) and 116 — after Mesa & Garcia-Novo (2004), modified; 117 — after photograph of holotype in Cigliano et al. (2019)]