Dicrotendipes nudus, Qi, Xin, Lin, Xiao-Long & Wang, Xin-Hua, 2012
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https://dx.doi.org/10.3897/zookeys.183.2834 |
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https://treatment.plazi.org/id/54CEB511-2112-15D1-8D40-26523ADBB754 |
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scientific name |
Dicrotendipes nudus |
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sp. n. |
Dicrotendipes nudus ZBK sp. n. Figs 1−5
Diagnosis.
R1 and R4+5 without seta; tergite IX without median seta; anal point with basal peduncle and bulbous ventral extension, 6−9 dorsal basal setae and 6 lateral setae.
Description.
Male imago (n = 18)
TL 2.65−3.20, 2.95 mm. WL 1.65−2.00, 1.82 mm. TL/WL 1.58−1.94, 1.72. WL/Pfe 2.14−2.43, 2.31.
Coloration.Head, thorax and abdominal tergite VI−IX brown, abdominal tergite I−V pale yellow; legs yellowish-brown.
Head. AR 1.85−2.12, 2.02. Temporal setae 10−16, 13. Clypeus with 12−19, 16 setae. Tentorium 100−163, 146 µm long, 20−35, 28 µm wide. Palpomere lengths (in µm): 34−42, 35; 43−55, 48; 40-45; 108−130, 121; 130−148, 138; 163−215, 179. L: 5th/3 rd 1.35−1.67, 1.58. Frontal tubercle 10.20−17.50, 14.20 µm long, 5.00−7.50, 6.20 µm wide.
Wing (Fig. 1).Wing transparent, without markings. VR 1.11−1.16, 1.13. B 1−3, 2 setae; R with 7−11, 9 setae; R1 and R4+5 without seta. Squama with 4−6, 5 setae.
Thorax.Dorsocentrals 8−11, 10; acrostichals 4−5, 4; prealars 3−4, 4. Scutellum with 4−9, 7 setae.
Legs. Fore tibia with rounded scale lacking spur. Spurs on mid tibiae 23-25, 24 µm and 18−25,20 µm long, including combs 26-32, 30 µm and 26-32, 30 µm long; spurs on hind tibia 22-32, 26 µm and 18−20,19 µm long including combs 24-28, 26 µm and 22-25, 23 µm long. Width at apex of front tibia 53−58, 55 µm, of mid tibia 50−55, 53 µm, of hind tibia 55−65, 59 µm. Lengths (in µm) and proportions of legs in Table 1.
Hypopygium(Figs 2−5). Anal point 40−60, 50 µm long, with basal peduncle and bulbous ventral extension, 6−9 dorsal basal setae and 6 lateral setae. Tergite IX without median setae; laterosternite IX with 3−4, 3 setae. Phallapodeme 95−103, 97 µm long; transverse sternapodeme 40−50, 45 µm long, laterally narrowed, medially broad, inverted U-shaped. Gonocoxite 142−165, 156 µm long. Superior volsella 83−92, 85 µm long, 23−27, 25 µm wide; digitiform with short ventral extension; with numerous micro setae and 3−4 short apical setae (Figs 4−5). Inferior volsella 128−155, 142 µm long; elongate, apex bulbiform, with 6−9, 8 apical setae in 2 rows. Gonostylus 150−195, 172 µm long; slightly curved medially, with 5−7, 6 apical setae along inner margin. HR 0.73−1.17, 0.82; HV 1.82−1.88, 1.85.
Type materials.
Holotype: 1♂, China, Hebei: Chicheng County, 40°54.16'N, 115°54.08'E, 21.vii.2001, Guo YH, light trap. Paratypes (17): Hebei: 2♂♂, Chicheng County, 40°54.16'N, 115°54.08'E, 21.vii.2001, Guo YH, light trap; Xinjiang: 5♂♂, Hebahe County, 48°04.30'N, 86°24.47'E, 15.vii.2002, Tang HQ, light trap; Zhejiang: 3♂♂, Ningbo City, 29°48.36'N, 121°34.53'E, 10.v.2010, Qi X, sweeping method; 1♂, Sanmen County, 29°05.55'N, 121°23.45'E, 28.vii.2010, Lin XL, sweeping method; 6♂♂, Tiantai County, Huading Mountain, 29°14.51'N, 121°06.31'E,13.iv.2011, Lin XL, light trap.
Etymology.
The species name is from Latin, nudus, meaning bare, referring to R1 and R4+5 without seta, which is unique within the genus.
Remarks.
Dicrotendipes nudus closely resembles Dicrotendipes nervosus , but can be separated by R1 and R4+5 of Dicrotendipes nudus without seta; while in Dicrotendipes nervosus , R1 with 11−20, 15 setae, R4+5 with17−28, 22 setae.
Distribution.
The species is known from Hebei, Zhejiang Province and Xinjiang Uygur Autonomous Region of China.
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.
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