Hallodapus susurratus Yasunaga & Duwal sp. nov.

(Figs 36–39, 125–130, 181–185)

Type material. HOLOTYPE: ♁, THAILAND: CHIANG MAI: Chom Thong, 18˚25′N, 98˚40′E, 24–27 Apr 1991, J. Horák (NMPC) (AMNH _ PBI 00380644) . PARATYPES: THAILAND: CHIANG MAI: Same locality as for holotype, 23–27 Apr 1991, S. Bílý (NMPC).

Differential diagnosis. Recognized by its small size (<2.5 mm) comparable with H. centrimaculatus; widely darkened dorsum; notched inner margin of anterior white macula on corium (Fig. 36); rather granulate, rounded MFP (Fig. 127); enlarged, stout left paramere (Fig. 183); presence of distinct spine and dorsal knob on pygophore (Figs 130, 181); slender phallotheca (Fig. 184); and rather sigmoid endosoma (Fig. 185). This new species is most similar to or conspecific with a New Guinean species identified by SCHUH (1984) as H. ‘near’ pseudosimilis (Schuh, 1974) originally described from South Africa (SCHUH 1974, Fig. 28); however, H. pseudosimilis is obviously larger in size (total length 3.2 mm and maximum width across hemelytra 1.04 mm), and the color pattern (e.g. broadly pale corium and pale basal 1/3 of metafemur) significantly differs from that exhibited by H. susurratus (cf. SCHUH 1974).

Description. Male (holotype). Macropterous; body generally coffee brown, small-sized (<2.5 mm), nearly parallelsided (Fig. 36); dorsal surface matte, with sparsely distributed, woolly, reclining setae and dark, simple, erect setae. Head weakly shining. Antenna creamy white, partly tinged with red; segment I with pale brown basal half and reddish extreme apex. Labium reddish brown, long, exceeding apex of metacoxa, reaching apical margin of abdominal sternum VII; segment III and base of IV pale brown. Pronotum weakly shining, almost trapezoidal (Fig. 125); pleura shiny dark reddish brown; scent efferent system yellowish brown, with ostiolar peritreme not produced (Fig. 128). Hemelytron with two pairs of white maculae as in Fig. 36 (anterior pair of maculae larger, separated from each other and notched inward); FWS as in Fig. 126; membrane pale smoky brown, with slightly darkened veins. All coxae and trochanters yellowish brown, except for basal part of each coxa more or less obscure; all femora reddish or chocolate brown, with pale extreme apices; MFP rather granulate, with each plectrum rounded (Fig. 127); tibiae creamy white; parempodia setiform, long (Fig. 129). Abdomen wholly reddish dark brown, shining. Male genitalia (Figs 180–185): Pygophore with a distinct pygophoral spine and a dorsal knob-like protuberance (Figs 130, 181); left paramere enlarged, stout (Fig. 183); right paramere tiny (Fig. 182); phallotheca slender (Fig. 184); endosoma slender, sigmoid, tapered apically, without noticeable process or branch (Fig. 185).

Measurements. Male (holotype, mm): Total length of body 2.32–2.45; head width including eyes 0.45–0.47; vertex width 0.18–0.19; lengths of antennal segments I– IV 0.24–0.25, 0.75–0.76, 0.54–0.57,?; total labial length 1.05–1.17; basal width of pronotum 0.69–0.74; maximum width across hemelytron 0.72–0.75; and lengths of metafemur, tibia and tarsus 0.90, 1.36–1.37,?.

Female. Unknown.

Etymology. From Latin, susurratus [= muttering, whispering], referring to the small size and rather granulate metafemoral plectrum of this new species; adjective.

Biology. Unknown; two available specimens were collected at montane zone of northern Thailand.

Distribution. Thailand (this paper).