Capnogryllacris (Capnogryllacris) sakaerat Dawwrueng, Gorochov et Artchawakom

Gorochov, Andrej V., Dawwrueng, Pattarawich & Artchawakom, Taksin, 2015, Study of Gryllacridinae (Orthoptera: Stenopelmatidae) from Thailand and adjacent countries: the genera Ultragryllacris gen. nov. and Capnogryllacris, Zootaxa 4021 (4), pp. 565-577 : 569-570

Capnogryllacris (Capnogryllacris) sakaerat Dawwrueng, Gorochov et Artchawakom , sp. nov.

( Figs 19, 20 , 26–35, 40–44)

Material studied. Holotype—male; Thailand, Nakhon Ratchasima Prov., environs of Sakaerat Environmental Research Station, 400–500 m, from branch of tree in forest ( Fig. 42 ), 12–15.IX.2014, coll. P. Dawwrueng, N. Makbun, T. Dowwiangkan ( THNHM). Paratype— 1 male, same data as for holotype but collected on forest floor ( Fig. 44 ) ( THNHM).

Description. Male (holotype). Body generally yellowish (pinkish white in living condition); head mostly dark reddish brown with somewhat lighter (rufous) clypeus and upper part of epicranium, with yellowish ocelli (median ocellus distinctly larger than lateral ocelli), with maxillae and labium light but having distal two thirds of maxillary palpi and distal part of labial palpi brown (Figs 26, 28); pronotum yellowish white with anterior and posterior areas as well as ventrolateral borders blackish (pronotal disc also with blackish median line; Fig. 27); femora yellowish white with light reddish distal part (except brown apices) and with black ventral spines on hind femora; tibiae and tarsi reddish with blackish tibial spines (spines of fore and middle tibiae with light apices); tegmen with light (yellowish) base, semitransparent (light brown) distal third having brown to dark brown venation, and dark brown (almost blackish) rest part ( Figs 19 , 40, 41 ); abdominal tergites dark brown with light brown anterior part; pleurites and pleural membranes on abdomen light with some dark marks on pleurites; sternites and genital plate also light but with a pair of large dark brown to brown spots on each of them (Fig. 39, 40). Structure of body similar to that of C. thaica , but wings distinctly shorter and reaching apex of middle femur and middle part of hind femur only ( Figs 19 , 40 ), a pair of hooks on 9th abdominal tergite with distinctly shorter inflated proximal parts (Fig. 30), and genital plate almost indistinguishable from that of C. thaica in shape (for comparison see Figs 24 and 29).

Variations. Paratype ( Figs 20 , 31–35, 43) with lighter head and abdomen; its pronotum with narrower posterior dark area and without median dark line and abdomen; its tegmen with rather small but distinct intensively yellow spot at center of large dark tegminal area; hooks of 9th abdominal tergite with somewhat longer thin (spine-like) parts than in holotype.

Female unknown.

Measurements (in mm). Length of body 27–30.8; pronotum 5.9–6.1; tegmen 15–16.9; hind femur 15.5–16.1.

Comparison. The new species is most similar to C. thaica in the general appearance and to C. khmerica in the pronotal colouration, but it is distinguished from the both species by distinctly shorter wings; from only C. thaica , by the presence of dark (almost blackish) pattern on the pronotum, an indistinct or much smaller and darker yellow spot in the dark tegminal part, and shorter proximal inflation of each hook on the 9th abdominal tergite in male; and from only C. khmerica , by a not black head, smaller blackish areas on the pronotum, the absence of large dark areas on legs, and inflated basal parts of the hooks of 9th abdominal tergite in male. From all the other congeners, the new species differs in the same characters in combination with partly reddish colouration of legs.

Etymology. The species is named after the Sakaerat Environmental Research Station where it was collected.

Figures

FIGURES 16 – 20. Body of male from above (16 – 18, left wings spread): 16, Ultragryllacris pulchra gen. et sp. nov.; 17, Capnogryllacris khmerica Gor.; 18, C. thaica sp. nov.; 19, 20, C. sakaerat sp. nov. (19, holotype; 20, paratype).

FIGURES 40 – 51. Capnogryllacris Karny, male (40 – 50) and female (51): 40 – 44, C. sakaerat sp. nov. (40 – 42, holotype; 43, 44, paratype); 45, C. martha (Griff.); 45, C. erythrocephala erythrocephala Gor.; 47; C. e. borealis Gor.; 48, C. phaeocephala cambodiensis subsp. nov.; 49, C. borneoensis pileata Gor.; 50, C. fumigata miniata Karny; 51, C. khmerica Gor. Body from side (40); right tegmen in rest position from side and slightly above (41, 43); specimen in living condition (42, 44); abdominal apex from below (45 – 50); genital plate from below (51).