Szeptyckiella lii sp. nov.

Types

Holotype. Female on slide, China: Guangdong Province: Nanling National Natural Reserve (altitude 1026 m, 24°55 ʹ 42.6 ʺ N, 113°0 ʹ 58.3 ʺ E,), 22 July 2010, F. Zhang and Z.-H. Li leg. (C9640) . Paratypes. Two females on slide and two in alcohol, same data as holotype. Holotype and three paratypes (one on slide, two in alcohol) in NAU, one paratype (on slide) in MNHN .

Description

Body length: up to 1.00 mm. Ground colour pale yellow in alcohol (Figure 7A). No eyes. Most scales coarsely striate, and leaf-like with tip pointed (Figure 7C); present on head, tergites and ventral side of manubrium, absent on Ant. I; scales on manubrium narrower (Figure 7D).

Antenna 1.35–1.54 times as long as cephalic diagonal. Antennal segments ratio as I: II: III: IV = 1: 2.11: 1.89: 3.67. Antennal chaetae mainly with seven types similar to above two species; smooth straight mic at base of antennal segments (three dorsal and three ventral on Ant. I, and one internal, one external and one ventral on Ant. II); curved, thin or moderately thick (on Ant. II–IV), blunt S-chaetae (two internal and three external on Ant. II, not clear on Ant. III–IV); swollen S-chaetae absent on Ant. I, and one dorso-distal present on distal Ant. II; dagger-shaped chaetae present on ventral Ant. II–IV, one external on Ant. II and three ventral on Ant. III. Ant. III organ with chaetae 2 and 3 swollen (Figure 8A). Labral margin without papillae. Lateral process of labial palp as thick as normal chaetae, with tip just reaching apex of closest labial papilla (Figure 8B). Labial base as mRel 1 l 2, R ciliate and 0.6 as long as chaeta m; chaetae X 2 and X 3 absent, X and X 4 ciliate; G 1–4 and H 3 smooth (Figure 8C). Cephalic dorsal chaetotaxy with five sutural mac and three mac in Gr. II. Clypeal chaetae ciliate (Figure 8D) .

Abd. IV 3.1–3.6 times as long as Abd. III along dorsal midline. Trochanteral organ with 10–12 smooth spiny chaetae (Figure 8E). Ungual unpaired inner tooth present. Unguiculus outer edge smooth (Figure 8F). Ventral tube anteriorly with five or six small and two large ciliate chaetae on each side; posteriorly with four distal smooth and four proximal chaetae; each lateral flap with six smooth chaetae, and one smooth or weakly ciliate (Figure 8G). Manubrial plaque with two pseudopores and three ciliate chaetae (Figure 8H). Distal smooth part of dens 2.4 times as long as mucro (Figure 7B).

Chaetotaxy. Th. II with three medio-medial (m1, m2, m2i), three medio-lateral (m4, m4i, m4p), 23–24 posterior mac and three lateral S-chaetae (Figure 7E); mac p4i rarely present. Th. III with 25 macrochaetae and two lateral S-chaetae (Figure 9A). Abd. I with four mac (m2–4, m4p) and two lateral S-chaetae. Abd. II with four central (a2, m3, m3e, m3ep), one lateral (m5) mac and two S-chaetae. Abd. III with one central (m3), two lateral (am6, pm6) mac and three S-chaetae (Figure 9B). Abd. IV with four central and five lateral (F1, E2–4, E2p) mac (Figure 9C); S-chaetae not clearly seen. Abd. V with three S-chaetae (as, acc.p4, 5, Figure 9D). Accessory mic of bothriotricha on Abd. II–IV scaly.

Ecology

In litter of forest.

Etymology

Named after the collector Zhao-Hui Li.

Remarks

This new species differs from other species of Szeptyckiella in having ciliate R and H 1, 2 and 4 on ventral side of head, smooth outer unguiculus edge and abundant tergal chaetotaxy (Table 1). The arrangement of S-chaetae on Abd. V is similar to that of most entomobryids.