Ultragryllacris nan Ingrisch, 2018

Dawwrueng, Pattarawich, Gorochov, Andrei V. & Suwannapoom, Chatmongkon, 2023, Revision of the genus Ultragryllacris (Orthoptera: Stenopelmatidae: Gryllacridinae), with description of new species, Zootaxa 5389 (4), pp. 445-458 : 451

Ultragryllacris nan Ingrisch, 2018 stat. nov.

Figs. 2 , 9–10 , 22–23 , 32, 41, 50, 58 , 67, 75 , 83–84

Ultragryllacris pulchra nan Ingrisch, 2018 ; Cadena-Castañeda, 2019

Materials examined: 2 females (AUP-02020–AUP-02021); Thailand, Nan Prov., Bo Kluea District, Forest beside the main road, 850– 900 m ., 5.X.2018, coll. P. Dawwrueng (AUP).

Description of female (nov.). General appearance (including armament of legs) similar to that of holotype (male) but distinguished by black dorsum of head practically without any light spots or almost only with light posteromedian area ( Figs. 9–10 , 22–23 ), and black area on anterior part of pronotum without light median interruption ( Figs 22–23 ). Subgenital plate gradually narrowing to narrowly subtruncate (almost rounded) apex and with large and transversally oval sclerotized area located in median part of wide transverse membranous band at base ( Fig. 75 ); ovipositor long, straight, gradually narrowing toward narrowly rounded (almost subacute) apex ( Fig. 67 ).

Comparison. The female of this subspecies differs from that of other known congeners by the presence of oval sclerotized area and membranous transverse band in the basal part of subgenital plate; in U. pulchra , U. rubricapitis and U. alboclypeata , the basal part of subgenital plate is without characteristic membranous band and with different shape of the sclerotized area (compare Figs 72, 74, 76 ), and also with characteristic process on male 9 th abdominal tergite which different from that of male of U. pulchra (distinctly wider in apical part than in U. pulchra , and not convex ventrally in lateral view). We combined these characters for made the decision to raise this subspecies to full species.

Figures

FIGURES 1–5. General habitus in dorsal view: Ultragryllacris alboclypeata alboclypeata, male (1); Ultragryllacris nan, female (2); Ultragryllacris intermediata sp. nov., male (3); Ultragryllacris jiaranaisakuli sp. nov., male (4); Ultragryllacris chandra sp. nov., male (5).

FIGURES 6–21. Head in front: Ultragryllacris alboclypeata alboclypeata, male (6–7), female (8); Ultragryllacris nan, female (9–10); Ultragryllacris intermediata sp. nov., male holotype (11), male paratype (12), female paratypes (13–14); Ultragryllacris jiaranaisakuli sp. nov., male holotype (15), male paratype (16), female (17); Ultragryllacris chandra sp. nov., male holotype (18), male paratypes (19–20), female paratype (21).

FIGURES 22–28. Head and prothorax in dorsal view: Ultragryllacris nan, female (22–23); Ultragryllacris intermediata sp. nov., male paratype (24), female paratype (25); Ultragryllacris jiaranaisakuli sp. nov., female (26); Ultragryllacris chandra sp. nov., male paratype (27), female (28).

FIGURES 29–63. Apex of male abdomen. Ultragryllacris alboclypeata alboclypeata (29, 38, 47, 56); Ultragryllacris a. triangula (30, 39, 48, 57); Ultragryllacris pulchra (31, 40, 49); Ultragryllacris nan (32, 41, 50, 58); Ultragryllacris rubricapitis from Mengla’s population (33, 42, 51, 59) and from Simao’s population (34, 43, 52, 60); Ultragryllacris intermediata sp. nov. (35, 44, 53, 61); Ultragryllacris jiaranaisakuli sp. nov. (36, 45, 54, 62); Ultragryllacris chandra sp. nov. (37, 46, 55, 63): 9th abdominal tergite, dorsal view (29–37), lateral view (38, 40, 42–46), lateral and slightly dorsal view (39, 41), ventral view (47, 48, 50, 51, 52, 53, 54, 55); distal half of subgenital plate, ventral view (56–63); abdominal apex, ventral view (49). Modified from Gorochov et al., 2015 (31, 40, 49), from Ingrisch, 2018 (30, 32, 39, 41, 48, 50, 57–58), from Bin & Bian, 2021 (33, 42, 51, 59) and Lu et al., 2023 (34, 43, 52, 60).

FIGURES 64–80. Apex of female abdomen: Ultragryllacris alboclypeata alboclypeata (64, 72); Ultragryllacris a. triangula (65, 73); Ultragryllacris pulchra (66, 74); Ultragryllacris nan (67, 75); Ultragryllacris rubricapitis from Mengla’s population (68, 76) and Simao’s population (77); Ultragryllacris intermediata sp. nov. (69, 78); Ultragryllacris jiaranaisakuli sp. nov. (70, 79); Ultragryllacris chandra sp. nov. (71, 80). Ovipositor, lateral view (64–71); subgenital plate, ventral view (72–80). Modified from Gorochov et al., 2015 (66, 74), from Ingrsich, 2018 (65, 73), from Bin & Bian, 2021 (68, 76) and Lu et al., 2023 (77). Note for subgenital plate: small dots near greyish area (75, 79, 80) denote membranous area; greyish area of all subgenital plate denote sclerotized band excepted basal part of this plate (73) is not pictured (no clue about sclerotized band from Ingrisch, 2018).

FIGURES 81–88. In-situ and ex-situ: Ultragryllacris alboclypeata alboclypeata, male (81) and female (82); Ultragryllacris nan, female in different positions (83–84); Ultragryllacris intermediata sp. nov., female (85); Ultragryllacris jiaranaisakuli sp. nov., male (86), female (87); Ultragryllacris chandra sp. nov., male (88).