Wygomiris phormictes Yasunaga & Duwal sp. nov.

(Figs 146–154, 170–173)

Type material. HOLOTYPE: ♀, THAILAND: NAKHON RATCHASIMA: Wang Nam Khieo, Sakaerat Environmental Research Station, 14°30′27″N, 101°55′39″E, 410 m alt., UV light trap, 22 Mar 2014, T.Yasunaga (DOAT) (AMNH _ PBI 00380645).

Differential diagnosis. Most similar in general appearance and similarly small size (body length <3.0 mm) to W. kaliyahae Yasunaga, 2012, from which this new species is readily distinguished by the following characters: pale brown antennal segments I and II (Fig. 170); short antennal segment II that is shorter than head width across eyes; relatively shiny pronotum; golden brown anterior part of hemelytron (Fig. 171); constricted middle margin of embolium (Figs 149, 171); possession of noticeable stridulatory device (FWS+MFP, Figs 149–150, 152–153); pale coxae (Fig. 172); short metafemur almost equal in length to mesofemur (Fig. 173); mesotibia longer than mesofemur; and metatarsomere II as long as III (Fig. 151).

Description. Female (holotype). Macropterous; body small (2.7 mm); dorsal surface relatively shining, with sparsely distributed, simple upright setae and woolly reclining setae. Head dark brown, weakly shining.Antenna pale brown, partly tinged with red, generally short; segments III and IV dark brown. Labium shiny reddish brown, slightly exceeding apex of mesocoxa. Pronotum and propleuron shining, dark brown; epimeron and episternum shiny reddish brown; scent efferent system pale somber brown; scutellum dark brown, somewhat shagreened, flat. Hemelytron dark brown, with anterior part contrastingly golden brown as in Figs 170–171, constricted at middle; embolium with rather developed FWS (Figs 149–150); membrane smoky brown, with pale, translucent basal 1/3. Coxae and legs pale brown; protibia, base of mesotibia, apical half of metafemur and whole metatibia reddish brown (Fig. 173); mesofemur as long as metafemur; mesotibia slightly longer than metatibia; metatibia somewhat inflated; MFP distributed on median metafemur (Fig. 152), with each plectrum hemispherical (Fig. 153). Abdomen widely shiny dark brown; abdominal sterna II–IV paler. Female genitalia: Not examined.

Measurements (mm). Female (holotype): Total length of body 2.70; head width including eyes 0.60; vertex width 0.29; lengths of antennal segments I–IV 0.15, 0.53, 0.35, 0.35; labial length 0.98; basal width of pronotum 0.92; maximum width across hemelytron 1.08; lengths of mesofemur and tibia 0.78 and 1.05; and lengths of metafemur, tibia and tarsus 0.78, 1.10, 0.27.

Male. Unknown.

Etymology. From Greek, phormictes (or phormiktes = harper), referring to presence of the stridulatory device of this new species; noun in apposition.

Biology. A female adult (Fig. 170) was attracted to UV light trap at tropical dry-evergreen forest zone (cf. https:// www.tistr.or.th/sakaerat/sakaeratE/Environment/environment.htm).

Distribution. Thailand: Nakhon Ratchasima (this paper).