Willowsia zhaotongensis, Chai, 2017
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publication ID |
https://doi.org/ 10.5852/ejt.2017.311 |
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DOI |
https://doi.org/10.5281/zenodo.3846715 |
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persistent identifier |
https://treatment.plazi.org/id/03858B3C-FFDF-F336-FDDC-FC96FAFA29E8 |
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treatment provided by |
Carolina |
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scientific name |
Willowsia zhaotongensis |
| status |
sp. nov. |
Willowsia zhaotongensis View in CoL sp. nov.
urn:lsid:zoobank.org:act:C1D8D5E5-3BF2-4726-B875-2B729F0DB073
Figs 4−6 View Fig View Fig View Fig ; Table 2 View Table 2
Diagnosis
Dorsal part of Abd. II & III and median and posterior parts of Abd. IV central with blue pigments; Abd. I usually with 4+4 mac; Abd. II with 4−5 + 4−5 dorso-central mac; Abd. III with 3+3 dorso-central and 5+5 lateral mac; spinulate type scales present on Ant. I, head, body, legs, ventral tube and ventral side of manubrium.
Etymology
The specific epithet refers to the type locality: Zhaotong City.
Type material
Holotype
CHINA: ♀, on slide, collected in Yuanlong Village, Yongfeng Town, Zhaoyang District , Zhaotong City , Yunnan Province, rotten stems of maize, 1 Aug. 2014, Fudong Ding leg. (collection number 1149, Nantong University).
Paratypes
CHINA: 7 ♀♀ on slides, 4 ♀♀ in alcohol, same data as holotype.
Description
COLOUR PATTERN. Body length up to 2.3 mm. Eyepatch dark blue. Dorsal part of Abd. II & III and median and posterior parts of Abd. IV centrally with blue pigment. Coxa and distal part of Ant. IV weakly pigmented ( Fig. 4 View Fig A–B).
HEAD. Antenna 0.45−0.56 times as long as body. Ratios of length of antennal segments I:II:III:IV = 1:1.6−2.0:1.3−1.7:2.3−3.1. Distal part of Ant. IV with many sensory setae, normal ciliate setae and apical bulb biolobed ( Fig. 5A View Fig ). Dorsal cephalic chaetotaxy with 7 antennal (An), 4 median (M 1 −M 4,) and 9 sutural (S 0 −S 6, S 4i, S 5i) mac. Interocular area with p, s, t setae. Eyes 8+8, G and H smaller ( Fig. 5B View Fig ). Labral setae as 4/5, 5, 4, all slender; prelabral setae ciliate, other smooth; distal margin of labrum with 4 papillae, each with 1 denticle ( Fig. 5C View Fig ). Lateral process of labial palp straight, as thick as normal setae, with tip not reaching apex of labial papilla ( Fig. 5D View Fig ). Labial triangle setae as in Fig. 5E View Fig , all finely ciliate.
THORAX. Dorsal macrochaetae shown as in Fig. 5F View Fig . Th. II with 2 (m1, m2) (rarely 3, m2i present) mediomedian, 3 (m4, m 4i, m4p) medio-lateral and 16−18 posterior mac on each side, 2 S-setae present on medio-lateral margin. Th. III with 16−17 median and 6 (a6, a6i, p5, p6, m6, m6e) lateral mac on each side. Trochanteral organ with 42−49 smooth spiny setae ( Fig. 5G View Fig ). Unguis with 4 inner teeth, one pair located 0.45−0.50 from base of inner edge of unguis, distal unpaired two respectively at 0.70−0.74 and 0.85−0.88 distance from base. Unguiculus acuminate and outer edge serrate. Tenent hair thick with clavate tip, slightly longer than inner side of unguis ( Fig. 5H View Fig ).
ABDOMEN. Abd. IV 2.8−5.0 times as long as Abd. III along dorsal midline. Dorsal mac shown in Figs 6A & 6B View Fig . Abd. I with 4 (m2, m3, m4, m4p) (rarely 3, m4p absent) mac. Abd. II with 4−5 (a2, a3, m3, m3e, m3ep, a3 sometimes absent), 1(m5) lateral mac and 2 sensory chaetae. Abd. III with 3 (a2, a3, m3) dorso-central, 5 (am6, pm6, p6, m7a, p7) lateral mac and 3 sensory chaetae ( Fig. 6A View Fig ). Abd. IV with 10−12 central (A3, A4, A6, B3, B4, B5, B6 always present) and 17−20 lateral mac as in Fig. 6B View Fig . Ventral tube anteriorly with 3 large and 15−23 small ciliate setae ( Fig. 6C View Fig ), posteriorly with 2 apical smooth setae and about 35 ciliate setae of different sizes ( Fig. 6D View Fig ); lateral flap not clearly seen. Manubrial plaque with 8−11 ciliate setae and 3(4) pseudopores on each side ( Fig. 6E View Fig ). Dens without spines, uncrenulated dens 1.4−1.7 times as long as mucro. Mucro bidentate, two teeth subequal and tip of basal spine reaching subapical tooth ( Fig. 6F View Fig ).
SCALES. All scales spinulate type and present on Ant. I, head, body, legs and ventral tube, ventral side of manubrium ( Fig. 6G View Fig ).
Remarks
The new species can easily be distinguished from the other species of the genus by their color pattern, except for the Vietnamese species Willowsia bartkei Stach, 1965 . Both new species have blue pigment on the dorsal part of Abd. II and III and on the median and posterior parts of Abd. IV centrally, but there is no blue pigment on Abd. I posteriorly and Abd. II and III laterally in the former, whereas pigment is present in the latter. The other differences, such as chaetotaxy and scales, are listed in Table 2 View Table 2 .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.