Willowsia pseudoplatani Zhang & Pan 2016, sp. nov.

Willowsia pseudoplatani Zhang & Pan sp. nov. urn:lsid:zoobank.org:act: CFF949FE-57F5-40DC-8087-04920282F729 Figs 4–6 Diagnosis Metathorax and Abd. II–IV dark blue; cephalic mac S 0 and S 1 absent; manubrial plaque with about 7 ciliate chaetae; Th. II with 1 (m4) medio-lateral and 6 (p1̅5, p2e) posterior mac and without mediomedial mac; Th. III with mic a1 and a3; Abd. I with 3 (m2̅4) mac; Abd. III with 2 (a2, m3) central mac. Etymology Named after the great similarities between the new species and W. platani (Nicolet, 1842). Material examined Holotype CHINA: ♀ on slide, Zhejiang Province, Taishun County, Wuyanling National Forest Park, Shuangkengkou, 27.617° N, 119.767° E, altitude 600 m, 8 Aug. 2010, JX Chen team leg. (slide # C9279_1, sample # C9279), deposited in NJAU. Paratypes CHINA: 2 ♀♀ on slides, same data as holotype (slide # C9279_2̅3), deposited in NJAU. Description Body length up to 1.74 mm. Ground colour pale in alcohol. Ant. I̅IV gradually darker. A transverse band between the eye patches. Dark blue stripe on lateral margin of mesothorax. Metathorax and Abd. II–IV dark blue. Abd. V posteriorly with a transverse band (Fig. 4A). Scales narrow, pointed, heavily striate with basal ribs longer than distal ones (Fig. 4B), and only present dorsally on head and terga. Based on 3 measured specimens, antenna 2.14–2.30 times as long as cephalic diagonal. Antennal segment ratio as I: II: III: IV = 1: 2.17–2.40: 2.17–2.33: 3.00. Smooth spiny mic at base of antennae 3: dorsal and 3 ventral on Ant. I; 1 internal, 1 external and 1 ventral on Ant. II. Labral intrusion slightly curved (Fig. 5A). Clypeal chaetae ciliate but their number not clearly seen. Dorsal cephalic chaetotaxy with 4 antennal (An), 4 median (M) and 6 sutural (S) mac; mac S 0 and S 1 absent (Fig. 5B). Tip of lateral process of labial palp not reaching apex of labial papilla. Labial chaeta R/M = 0.71–0.76. Cephalic groove with 7–8 ciliate chaetae on each side (Fig. 5D). Metatrochanteral organ with 11̅16 smooth spine-like chaetae; 7̅ 12 in ...