Thaumastocoris peregrinus

Body elongate, total length 2.82–3.02 mm in males. Head length 0.53–0.57 mm, width across eyes 0.73–0.78 mm, interocular space 0.46–0.49 mm; vertex mostly impunctate, with transverse puncticulate rows sometimes visible; mandibular plates elongate, surpassing clypeus by length of clypeus, contiguous medially, flared anteriorly, concave dorsally, anterolateral margins strongly recurved. Antennae with segments I 0.13–0.15 mm, II 0.37–0.42 mm, III 0.30–0.37 mm, IV 0.28–0.33 mm; apex of third antennal segment and apical half of fourth black; uniform distribution of decumbent setae intermixed with fine erect setae. Rostrum short, attaining anterior margin of prosternum, length 0.34 mm. Pronotum mostly yellowish brown, disc cream medially; anterior collar thick, not readily visible; calli very slightly raised; lateral margin strongly constricted medially; anterolateral angles of anterior lobe with a tubercle; callosite region irregularly punctuate, punctures shallow, denser along midline and anterolateral angles. Scutellum with median longitudinal stripe on apical half whitish; scutellar length 0.25–0.31 mm, basal width 0.35–0.40 mm. Hemelytra with inner margin of clavus and outer margin of corium whitish; medial margin of corium straight to weakly convex, apex at membrane strongly narrowed. Legs with forecoxal separation equal to slightly wider than coxal width; femora with sparse short whitish adpressed setae; tibiae with dense and longer whitish adpressed setae, thicker and longer on inner margin; fore and mid tibiae with three subapical dark teeth on inner margin; fossula spongiosa elongate, reaching distal half of second tarsomere. Dorsum with uniform distribution of setose punctures, setae short erect straw-coloured. Ventral surface with irregular distribution of fine, straw-coloured, decumbent setae. Male genital capsule opening to right side.

Literature