Mimadiestra biloba Storozhenko et Dawwrueng

Storozhenko, Sergey Yu. & Dawwrueng, Pattarawich, 2014, New genus of the tribe Diestramimini (Orthoptera: Rhaphidophoridae) from Thailand, Zootaxa 3765 (3), pp. 288-294 : 290-292

Mimadiestra biloba Storozhenko et Dawwrueng , sp. nov.

Figs 29–40

Material. Holotype—male, Thailand: Kamphaeng Phet Province, Klong Lan Distrcit, 1200–1350 m, 5 October 2013, coll. P. Pawangkhanant (deposited in the Department of Entomology, Kasetsart University, Bangkok).

Description. Male (holotype). Apterous. Head with rostral tubercles relatively long. Lateral lobes of pronotum more or less semicircular in profile. Fore and mid femora with only apical spines normal for this tribe; hind femur with seven inner ventral denticles; fore and mid tibiae with two pairs of ventral spines and five apical spurs (pair of ventral spurs long, but unpaired ventral spur between them and pair of dorsal spurs short); hind tibia with 65 outer and 70 inner dorsal denticles (division of these denticles into groups indistinct) and six apical spurs (outer dorsal spur reaching apical 2/3 of the first segment of hind tarsi; two other inner spurs short; inner dorsal spur reaching the apex and inner lateral spur reaching the middle of the first segment of hind tarsi); first segment of hind tarsi with a row of three dorsal denticles including an apical one; second segment without dorsal apical denticle. Abdominal apex: posterior margin of male 7th tergite with two projections (dovetail); 8th and 9th tergites with straight posterior margin; 10th tergite with shallow excision; epiproct triangular. Apex of paraprocts bulb-like. Male genitalia as in Fig. 30 .

Body from above brown with black and light brown spots, from below light brown. Head from above and eyes black; rostral tubercles brown; face in frontal view brown with light spots; antennae bright brown. Legs light brown; hind femora light brown without black spots or stripes on dorsal side; apices of all femora blackish; all tibia brown with light rings; fore and mid tarsi whitish brown; hind tarsi with blackish brown dorsal and whitish ventral sides. Pronotum blackish brown with indistinct light spots on lateral lobes. Tergites brown with few light and blackish spots. Paraprocts brown. Cerci whitish with two rings, one brownish near the base and another black near the middle.

Female unknown.

Measurements (in mm). Length of body (from rostrum to the apex of the abdomen) 14.0; pronotum 5.5; fore femur 10.2; mid femur 10.1; hind femur 20.3; fore tibia 10.2; mid tibia 10.1; hind tibia 20.5.

Distribution. Thailand (Kamphaeng Phet Province).

Etymology. From Latin ‘ bi ’—double and Greec ‘ lobus ’—lobe.

Figures

FIGURES 18 – 31. Diestramimini. 18, Diestramima minor, female subgenital plate, ventral view; 19 – 20, Diestramima major: 19, male genitalia, dorsal view; 20, the same, ventral view; 21 – 24, Megadiestramima intermedia: 21, male genitalia, dorsal view; 22, the same, ventral view; 23, apex of male abdomen, dorsal view; 24, the same, lateral view; 25 – 28, Leodiestramima exculta: 25, female subgenital plate, ventral view; 26, male genitalia, dorsal view; 27, the same, ventral view; 28, apex of male abdomen, lateral view; 29 – 31, Mimadiestra biloba sp. nov.: 29, apex of male abdomen, lateral view; 30, the same, dorsal view; 31, male genitalia, ventral view. (Figs 18 – 20, 25 – 28 after Gorochov, 1998; Figs 21 – 24 after Gorochov & Storozhenko, 1992; Figs 29 – 31 original).

FIGURES 32 – 40. Mimadiestra biloba sp. nov., male. 32, body, frontal and partly lateral view; 33, the same, lateral view; 34, head, dorsal view; 35, the same, frontal view; 36, inner side of hind tarsus and apical part of hind tibia, lateral view; 37, apex of abdomen, lateral view; 38, the same, dorsal view; 39, the same, ventral view; 40, genitalia, ventral view.