Corresponding author: Feng Zhang (
Academic editor: L. Deharveng
The genus
The specimens were cleared in lactic acid, mounted under a coverslip in Marc André II solution, observed using Leica DM2500 and Nikon 80i microscopes. The photographs were taken with Nikon SM1000 microscope using a mounted Nikon DS-Fi1 camera and enhanced with Photoshop CS2. Length data were measured with NIS-Elements Documentation (Nikon). Dorsal cephalic chaetae were designated after
Abbreviations.Th. -thoracic segment; Abd. -abdominal segment; Ant. -antennal segment; ms -specialized S-microchaeta(e); S-chaeta(e) -specialized chaeta(e) (including ms); mac -macrochaeta(e); mic -microchaeta(e).
♀ on slide, Shaoxin City, Zhuji Country, Dongbaihu, Zhejiang Province, CHINA,
6 ♀ and 1 ♂ on slide and 10 in alcohol, same data as holotype. 4 paratypes (2 ♀ on slide and 2 in alcohol) deposited in School of Life Sciences, Nanjing University and others in School of Life Sciences, Taizhou University, China.
Named after the type locality.
Body length up to 0.93 mm.
Colour pattern. Ground colour pale yellow, with a pair of dark patches present on lateral Abd. III. Violet pigment distributed on antennae and gradually darker towards tip. Eye patches dark (
Head. Ommatidia 8+8, G and H smaller than others. Interocular chaetae as
Leg. Coxae: I, with 7 ciliate mac and 2 pseudopores; II, with 7–8 ciliate mac in the anterior row, 8–11 ciliate mac in the posterior row and 3 pseudopores; III, with 9–11 ciliate mac and 2 pseudopores (
Ventral tube. Anterior face with 14+14 ciliate chaetae; posterior face without smooth chaeta (
Furcula. Manubrial plaque with 2–3 inner, 4–6 outer ciliate chaetae and 2 pseudopores. Dental tubercles conically pointed (
Chaetotaxy. Dorsal cephalic mac as
Dorsal chaetotaxy of
Dorsal chaetotaxy of
In the leaf litter of
This new species is characterized by colour pattern, clavate tenent hair, unscaled appendages (antennae, legs and ventral tube), 4 conical labral papillae, ventral tube with ciliate chaetae present on lateral flap and without smooth chaeta on posterior side, and ciliate mic
It is similar to Vietnamese
1 ♀ on slide, Taizhou City, Dalei Mountain, Zhejiang Province, CHINA,
11 ♀ on slide and 15 in alcohol, same data as holotype. 4 paratypes (2 ♀ on slide and 2 in alcohol) deposited in School of Life Sciences, Nanjing University and others in School of Life Sciences, Taizhou University, China.
Named after the type locality, which is the border (latin word “finis”) of the three adjacent cities.
Body length up to 1.2 mm.
Colour pattern. Ground colour from yellow to slightly brown, a pair of dark lateral patches of Abd. III and a pair of dark postero-lateral patches of Abd. IV, slightly violet pigment distributed on antennae and gradually darker towards tip, eye patches dark (
Head. Ommatidia 8+8, G and H smaller than others, interocular chaetae as
Leg. Coxae: I, with 5–7 ciliate mac and 2 pseudopores; II, with 6–7 ciliate mac in the anterior row, 7–9 ciliate mac in the posterior row and 3 pseudopores; III, with 6–7+3 ciliate mac and 2 pseudopores. Trochanteral organ with 10–14 smooth spiny chaetae. Unguis with 1 outer (at 1/5 distance from base), 2 lateral (at 1/4 distance from base) and 4 inner teeth (paired ones at 1/3, middle one at 2/3 and apical one at 3/4 distance from base to apical inner unguis), all tiny. Unguiculus slender and truncate with outer edge slightly serrate. Tenent hair clavate, subequal to inner margin of unguis, and slightly longer than unguiculus. Supraempodial chaeta subequal to unguiculus.
Ventral tube. Anterior face with 9–15 larger ciliate chaetae; posterior face without smooth chaetae; lateral flap with 6–7 smooth and 2–3 ciliate chaetae.
Furcula. Manubrial plaque with 2–3 inner, 4–6 outer ciliate chaetae and 2 pseudopores, ventral manubrium with 2+2 ciliate terminal chaetae. Dental tubercles conically pointed. Distal smooth part of dentes 1.5–2.0 times as long as mucro. Mucro bidentate, mucronal basal spine reaching subapical tooth with two accessory spinelets.
Chaetotaxy. Dorsal cephalic mac as
Dorsal chaetotaxyof
Dorsal chaetotaxyof
Dorsal chaetotaxyof
In leaf litter of
The new species is easily distinguished from other
The species is most similar to
Main differences between three similar species of
|
|
|
|
---|---|---|---|
Dark patches laterally on Abd. II | absent | absent | present |
Dark patches postero-laterally on Abd. IV | absent | present | present |
Apical bulb of Ant. IV | absent | absent | present |
Number of labral papillae | 4 | 4 | 0 |
Chaeta |
ciliate | ciliate | smooth |
Chaeta |
slightly ciliate | slightly ciliate | reduced |
Chaetae |
ciliate | ciliate | smooth |
Inner teeth on unguis | 4 | 4 | 3 |
Smooth chaetae on posterior ventral tube | 0+0 | 0+0 | 1+1 |
Chaeta |
ciliate | smooth | ? |
Chaetae |
not expanded | expanded | ? |
Chaeta |
not expanded | expanded | ? |
Chaeta |
ciliate | smooth | ? |
Chaeta |
ciliate | smooth | ? |
Distribution | China | China | Vietnam |
?: character not provided in original description
Dental tubercles are pointed in
The present study was supported by the National Natural Sciences Foundation of China (31101622) and the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KSCX2-EW-J-28). Thanks should be given to Louis Deharveng (Museum National d’Histoire Naturelle, Paris, France) and two anonymous referees for their useful suggestions.