Papirioides zhejiangensis, Li, Zhao-Hui, Chen, Jian-Xiu & Li, Jing, 2007

Li, Zhao-Hui, Chen, Jian-Xiu & Li, Jing, 2007, A new species of the genus Papirioides (Collembola: Dicyrtomidae) from China, Zootaxa 1499, pp. 61-68: 62-67

publication ID

http://doi.org/ 10.5281/zenodo.177081

persistent identifier

http://treatment.plazi.org/id/03AB457E-0926-FFB1-24E7-F9AD3075FBF8

treatment provided by

Plazi

scientific name

Papirioides zhejiangensis
status

sp. nov.

Papirioides zhejiangensis  sp. nov.

Figs 1–31, Tab. 1

Type material. Holotype: female (mounted on slide), China: Zhejiang Province: Wenzhou: Wuyanling National Nature Reserve, deciduous forest, under wet wood and in litter 4.viii. 2005, collection number C 9280, coll. CHEN Jian-xiu, YAN Hai-juan, ZHANG Feng & JI Ming. Paratypes: 3 females and 1 male, same data as holotype; 32 specimens in alcohol. All deposited in the School of Life Science, Nanjing University.

Description. Body length: up to 2.3 mm.

Color pattern. Ground color yellow. Color pattern basically symmetric. Distal 2 / 3 of cephalic dorsum brown, basal 1 / 3 pale yellow with 2 brown bands lateral to each eye patche. Head ventrally brown except basal part yellow. Eye patches small and dark purple.

Ant. I purple, Ant. II pale yellow with median and distal purple bands, Ant. III purple totally, Ant. IV pale yellow and distally purple.

Coxa, trochanter and femur dorsally yellow with irregular purple patches, ventrally pale purple; tibiotarsus dark purple with 3 transverse yellow bands.

Great abdomen with 1 dorsal yellow stripe on midline, posterior part of it much wider and inclosing several small brown spots; transverse yellow band present at middle, separating dorsum of great abdomen into anterior and posterior parts. Anterior part with anterior 2 / 5 yellow with many small brown spots; middle 1 / 5 with 2 oval yellow patches along midline, each patch surrounded by 5 small dark brown spots; posterior 2 / 5 brown with dark brown spots. Posterior part mostly brown with irregular yellow patches. Basal 2 / 3 of dorsal club pale yellow with purple spots, distal 1 / 3 purple with tip yellow. Lateral sides of great abdomen pale brown with numerous dispersed dark spots. Great abdomen ventrally with anterior part brown mottled with pale purple patches, middle part yellow, posterior part dark purple. Ventral tube purple, sacs yellow. Basal 2 / 3 of manubrium yellow, distal 1 / 3 pale purple. Dens pale purple. Small abdomen yellow with purple patches on lateral and ventral sides ( Figs 1–3).

Head. Eyes 8 + 8, ocelli A, B, E, F & H large; C, D & G small. Dorsal cephalic chaetotaxy after Bretfeld (1999) and shown in Figs 4 & 5View FIGURES 4 – 11. Eyepatch with 2 setae, seta 1 spiny and larger than seta 2, seta 2 setaceous. Head apex with 2 + 2 spines, ap 2 much larger than ap 1. Dorsal head-back with 3 + 3 spiny setae, setae in pairs 1 & 3 larger. Frons with 2 + 2 longitudinal rows of setae, 5 & 3 spiny setae respectively present in rows a & b; a 4 much larger than others. Clypeus with 1, 1, 2, 1, 1, 1 subequal spiny setae. Lower frons with 8 + 8 cup sensilla, 1 + 1 oval organs on ventral-lateral parts, and 7 + 7 transversal rows (a –g) of common setae. Labral setae as 6 / 7, 3, 4 ( Fig. 6View FIGURES 4 – 11). Length ratio of antenna to head as 2.3–2.6: 1 in female and 3.2: 1 in male. Antennal segment ratio as I: II: III: IV = 1 –1.27: 7.27–7.82: 7.27–7.64: 1.18–1.27. Ant. I with 1 ventral and 6 dorsal setae, ventral one much smaller ( Fig. 7View FIGURES 4 – 11). Ant. II with 20 setae, 1 ventral and 2 dorsal cup sensilla ( Fig. 8View FIGURES 4 – 11). Ant. III with 2, 4, 4 cup sensilla respectively at basal, middle and distal parts, basal 2 thick. Distal part of Ant. III 8 - subsegmented, each subsegment having 4–7 setae arranged in whorl. Ant III subapical organ with 2 fingerlike sensilla lying in shallow depression ( Fig. 9View FIGURES 4 – 11). Ant. IV 7 -subsegmented.

Great abdomen. Dorsum with 4 + 4 bothriotrichia, A-B-C in triangle, A arising from large papilla and pointed towards head; 5 pairs of short spines present along dorsal midline between two bothriotrichia A; 4 pairs of slender setae (AA, BB, CC, EE) on anterior part of dorsum ( Fig. 10View FIGURES 4 – 11). Dorsal club long and cylindrical, slightly and gradually thickened towards apex; with 60–70 spines, apical ones stout ( Fig. 11View FIGURES 4 – 11).

Legs. Forelegs: Coxa with 1 seta ( Fig. 12View FIGURE 12 – 24). Trochanter with 4 setae ( Fig. 13View FIGURE 12 – 24). Femur with 13 setae, 1 basal oval organ, 1 distal oval organ and 1 distal cup sensillum ( Fig. 14View FIGURE 12 – 24). Tibiotarsus with 4 cup sensilla and 3 oval organ ( Fig. 15View FIGURE 12 – 24). Pretarsus same as in metalegs. Midlegs: Coxa with 3 setae and 1 oval organ ( Fig. 16View FIGURE 12 – 24). Trochanter with 5 setae ( Fig. 17View FIGURE 12 – 24). Femur with 14 setae, 1 basal oval organ, 1 distal oval organ and 1 distal cup sensillum ( Fig. 18View FIGURE 12 – 24). Tibiotarsus with 5 cup sensilla and 3 oval organ ( Fig. 19View FIGURE 12 – 24). Pretarsus same as in metalegs. Hindlegs: Coxa with 4 setae and 1 oval organ ( Fig. 20View FIGURE 12 – 24). Trochanter with 6 setae ( Fig. 21View FIGURE 12 – 24). Femur with 13 setae, 1 basal oval organ, 1 distal oval organ and 1 distal cup sensillum ( Fig. 22View FIGURE 12 – 24). Tibiotarsus with 5 cup sensilla, 3 oval organ and 2 bilaterally serrate and apically blunt differentiated setae ( Fig. 23View FIGURE 12 – 24). Basal part of pretarsus with 1 anterior and 1 posterior setulae. Unguis without tunica, with 2 inner teeth and 2 + 2 lateral teeth. Unguiculus with 1 corner tooth, subapical filament with tip pointed and reaching beyond apex of unguis ( Fig. 24View FIGURE 12 – 24).

Abdominal appendages. Ventral tube anteriorly with 1 + 1 short distal setae and 1 + 1 lateral setae, sacs warty ( Fig. 25View FIGURES 25 – 31). Corpus of retinaculum with 6 setulae, rami with 3 + 3 teeth and 1 + 1 basal horn ( Fig. 26View FIGURES 25 – 31). Manubrium with 8 + 8 posterior setae, no anterior setae ( Fig. 27View FIGURES 25 – 31). Dens anterior setae 3, 2, 1, 1 ··· 1 ( Fig. 28View FIGURES 25 – 31); posterior setae 24, i.e., E: 1–9, PE: 1, P: 5, J: 1–9 (Chaetotaxy after Bretfeld, 1999). E 1, 5, 7–9, PE, J 1, 9 and P 1–5 smooth; E 2 & 6 smooth or rarely serrate; others basally serrate. E 2 very short, E 1 /E 2 =2.8–3.8, E 3 /E 2 = 4.5–6.5 ( Fig. 29View FIGURES 25 – 31). Mucro with 27–33 inner teeth and 20–31 outer teeth ( Fig. 30View FIGURES 25 – 31).

Small abdomen. Chaetotaxy after Bretfeld (1999) and Yosii (1969, in brackets). Dorsal region with setae m 1 (M), A 3 (M), DL 2 (N), P 1 (H) & a0 as strong spines; a 1–3 large and serrate; sa ciliate and sa serrate; A 1 & A 2 as cup sensilla; P0 (G’) short and thin, P 3 (S) as sensillum and not directly anterior to circumanal setae, P 1 ’ (T) straight and thin; DL 1 and P 2 (G) absent. Ventral region with seta VL 2 (L) as strong spine; av 1–4 serrate, av 1 & av 2 stronger than av 3 & av 4; appendices anales av 5 as thick spines and shorter than av 1–4; sa 1–3 ciliate, sa 3 much larger than sa 1 & sa 2; AV 1 as cup sensilla, AV 2–8 small and smooth; cuticular cone near and internal to AV 2 ( Fig. 31View FIGURES 25 – 31).

Ecology. Found under wet wood and in litter in deciduous forest.

Etymology. Named after the type locality, Zhejiang Province, China.

Discussion. The new species, Papirioides zhejiangensis  , is most close to the Indonesian species P. tonsori  in the circumanal and dens setae. However, it differs from the latter in the facial setal pattern, length of dorsal club on the great abdomen, and number of short spines on the club. It is very similar to another Indonesian species P. jacobsoni  in the color pattern. However, it is readily distinguished from the latter by the facial setal pattern, length of dorsal club on the great abdomen, circumanal setae and other features. The comparison of the new species with the three species in the genus with dorsal club on the great abdomen is shown in the following table. The Japanese species P. uenoi  is excluded from the table since it was poorly described. However, the new species is also easily separated from it by the absence of two dorsal brown stripes on great abdomen and the dens with setae mostly serrate rather than smooth or weakly serrate as in the latter.

The present study was supported by a grant from National Natural Science Foundation of China (No. 30370175). Special thanks are offered to Dr. G. Bretfeld, University of Kiel, Germany and Dr. P. Greenslade, Division of Entomology, CSIRO, Canberra, Australia, for their constructive suggestions and kindness to offer references. Thanks are also given to the Bureau of Wuyanling National Nature Reserve for its support to our collecting.

TABLE 1. Comparison of species with dorsal club in the genus Papirioides.

  setaceous spiny 2.8–3.8 2 8 slightly annulate setaceous 2 slightly annulate
    slightly annulate
CSIRO

Australian National Fish Collection