Lepidosira chongqingensis, Qian & Jing & Ma, 2025

Qian, Xiaowei, Jing, Meidong & Ma, Yitong, 2025, First report of Lepidosira (Collembola, Entomobryidae) from China, with description of four new species under the aid of COI barcoding, Deutsche Entomologische Zeitschrift 72 (2), pp. 341-365 : 341-365

publication ID	https://doi.org/10.3897/dez.72.153961
publication LSID	lsid:zoobank.org:pub:E4AB50E6-895B-44FC-A994-078B3FF27271
DOI	https://doi.org/10.5281/zenodo.17532331
persistent identifier	https://treatment.plazi.org/id/728B036C-15B6-5E4C-84E4-29219BEF7506
treatment provided by	Deutsche Entomologische Zeitschrift by Pensoft
scientific name	Lepidosira chongqingensis
status	sp. nov.

Treatment

Lepidosira chongqingensis sp. nov.

Figs 20 View Figure 20 , 21 View Figure 21 , 22 View Figure 22 , 23 View Figure 23 , 24 View Figure 24 , 25 View Figure 25 , Table 3 View Table 3

Type material.

Holotype. CHINA • ♀ on slide; Chongqing Municipality, Wuxi County, the Yintiaoling National Nature Reserve , the Hongqi Protection Station , the Tianchi Dam ; 1,762.16 m a. s. l.; 31 ° 31 ' 39 " N, 109 ° 47 ' 18 " E; 23 Jul. 2024; Y. T. Ma leg.; sample number 1311 ( CQWX 0706 ). GoogleMaps

Paratypes. CHINA • 3 ♀ on slides, same data as holotype GoogleMaps .

Diagnosis.

Ant. IV, distal Ant. III, and basal Ant. I. with scattered violet pigment; Ant. IV with bilobed apical bulb; head with three mac on Gr. II; Th. II with 3 (2) medio-medial, three medio-sublateral and 17–19 posterior mac; Th. III to Abd. IV respectively with 12, 4, 6, 3 (2), and 18–25 central mac; Abd. III with five lateral mac.

Description.

Body (head + trunk) length up to 1.84 mm, holotype 1.84 mm.

Color pattern: ground color pale yellow; eye patches dark blue; Ant. IV, distal Ant. III, and basal Ant. I. with scattered violet pigment; a little violet pigment present in post-ocular region and sometimes on coxae (Fig. 20 A, B View Figure 20 ).

Scales: ciliate type, present on Ant. I – II, basal Ant. III, legs (Fig. 21 A View Figure 21 ), both faces of ventral tube, ventral side of manubrium and dentes (Fig. 21 B, C View Figure 21 ), head, and terga (Figs 21 D View Figure 21 , 22 A View Figure 22 ).

Head: antenna not annulated and 0.65–0.75 ( holotype 0.65) times length of body. Ratio of Ant. I – IV as 1.00 / 1.33–2.00 / 1.24 – 1.57 / 2.00 – 3.10 ( holotype 1.00 / 1.78 / 1.33 / 2.67). Distal part of Ant. IV with many sensory chaetae and normal ciliate chaetae, apical bulb bilobed (Fig. 22 B View Figure 22 ). Ant. III sense organ with two rods, two spiny guard sensilla, smooth blunt sens, and ciliated chaetae (Fig. 22 C View Figure 22 ). Ant. II with two rods apically (Fig. 22 D View Figure 22 ). Eyes 8 + 8, G and H smaller than others, interocular chaetae as p, r, t mes. Dorsal chaetotaxy of head with 8–11 antennal (An), four anterior (A 0, A 2, A 3, A 5), four median (M 1–4), eight sutural (S 0–7) mac, one post-sutural mac (Ps 2) and mes (Ps 5), 13 posterior mac plus three mac (Pi 1, Pa 1, Pm 1) in Gr. II (Fig. 22 E View Figure 22 ). Prelabral and labral chaetae as 4 / 5, 5, 4, prelabral chaetae ciliate and other smooth, a 2 and b 2 slightly shorter than middle ones, labral papillae conical (Fig. 22 F View Figure 22 ). Basal chaeta on maxillary outer lobe almost as thick as apical one; sublobal plate with four smooth chaetae-like processes (Fig. 22 G View Figure 22 ). Lateral process (l. p.) of labial palp E finger-shaped with tip not reaching apex of papilla E (Fig. 22 H View Figure 22 ). Labial base with M 1 M 2 REL 1 L 2, all ciliate (Fig. 22 I View Figure 22 ).

Thorax: tergal ms formula on Th. II – Abd. V as 1, 0 / 1, 0, 1, 0, 0, sens as 2, 2 / 1, 2, 2, 2, 3 (Figs 23 A View Figure 23 , 24 A – C View Figure 24 ). Th. II with 11–12 anterior, 3 (2) medio-medial (m 1, m 2, m 2 i may be absent), three medio-sublateral (m 4, m 4 i, m 4 p), 17–19 posterior mac. Th. III with 12 central and seven lateral mac (Fig. 23 A View Figure 23 ). Coxal chaetal formula as 5–9 / 13 – 16 (anterior), 8–14 (posterior) / 15–23 (Fig. 23 B – D View Figure 23 ). Trochanteral organ with 70–97 smooth chaetae (Fig. 23 E View Figure 23 ). Tenent hair smooth and clavate, 1.21–1.28 length of inner edge of unguis; unguis with a pair of laterobasal outer teeth and four inner teeth, basal paired inner teeth located at 0.42–0.43 distance from base of inner edge of unguis, distal unpaired inner teeth at 0.65–0.69 and 0.86–0.89 distance from base, respectively; unguiculus lanceolate, outer edge slightly serrate (Fig. 23 F View Figure 23 ).

Abdomen: range of Abd. IV length as 4.08–7.00 ( holotype 6.67) times as dorsal axial length of Abd. III. Abd. I with four (m 2–4, m 4 i) mac. Abd. II with six (a 2, a 3, m 3, m 3 e, m 3 ea, m 3 ep) central, one (m 5) lateral mac. Abd. III with 3 (2) (a 2, m 3, a 3 absent on one side of one specimen) central, five (am 6, pm 6, m 7 a, p 6, p 7) lateral mac (Fig. 24 A View Figure 24 ). Abd. IV with two normal sens, 18–25 central, 18–20 lateral mac (Fig. 24 B View Figure 24 ). Abd. V with three sens (Fig. 24 C View Figure 24 ). Anterior face of ventral tube with 3 + 3 large and seven small ciliate chaetae, line connecting proximal (Pr) and external-distal (Ed) mac oblique to median furrow (Fig. 24 D View Figure 24 ); posterior face with 2–3 apical smooth chaetae besides about 35 ciliate chaetae of different sizes (Fig. 25 A View Figure 25 ); each lateral flap with five smooth and 20–22 ciliate chaetae (Fig. 25 B View Figure 25 ). Manubrial plate dorsally with 14–21 ciliate mac and four pseudopores (Fig. 25 C View Figure 25 ); ventrally with 33–41 ciliate chaetae (Fig. 25 D View Figure 25 ). Mucro bidentate; tip of basal spine reaching apex of subapical tooth; distal smooth section of dens slightly longer than mucro in length (Fig. 25 E View Figure 25 ).

Etymology.

The name is composed of the locality name Chongqing plus the Latin suffix “ - ensis, ” meaning pertaining or originating, referring to its type locality, Chongqing Municipality.

Habitat.

Found in litter of subtropical forests, mainly composed of leaves of Buxus sinica , Dendrobenthamia japonica var. chinensis , Ilex yunnanensis , Rosa corymbulosa , and Viburnum betulifolium .

Remarks.

The new species is similar to the Indian species L. pallida ( Ritter, 1911) and L. unguserrata Salmon, 1970 , and the Vietnamese species L. alba ( Nguyên, 2005) , because all these species lack violet or blue pigment on the trunk. However, L. pallida ( Ritter, 1911) is characterized by one inner tooth on the unguis, L. unguserrata Salmon, 1970 , by the unilobed apical bulb on Ant. IV, and L. alba ( Nguyên, 2005) by two mac on Abd. I. The new species is also similar to the Chinese species L. baojiensis nom. nov. and L. trifascia ( Zhou & Ma, 2022) , comb. nov. in the chaetotaxy of the dorsal head, Th. II – III, and Abd. II – IV, but Abd. I has four mac in the former and seven in the latter two species. Detailed comparisons among them are listed in Table 3 View Table 3 .