Dolichopus (Dolichopus) geniculatus Stannius
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publication ID |
https://doi.org/ 10.1080/00222930802354100 |
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persistent identifier |
https://treatment.plazi.org/id/12738794-FFAC-F804-645E-FE4A62F4177A |
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treatment provided by |
Felipe |
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scientific name |
Dolichopus (Dolichopus) geniculatus Stannius |
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Dolichopus (Dolichopus) geniculatus Stannius View in CoL
( Figure 4 View Figure 4 ) Dolichopus geniculatus Stannius, 1831, p. 135 . Dolichopus discrepans Parent, 1928, p. 33 .
Material examined
One male, China: Jilin Prov.: Changbaishan Mt. , 1500–2189 m, 9 August 2004, coll. Liu Xingyue (CAU) .
Diagnosis
Postocular bristles black. Antenna black, first flagellomere 1.2 times longer than wide. Legs black, all coxae black, femora black. Hind femur with one row of 12 black postero-ventral bristles (shorter than thickness of femur).
Redescription
Male. Head metallic green with pale gray pollen. Hairs and bristles black, postocular bristles (including postero-ventral hairs) wholly black. Antenna ( Figure 4A View Figure 4 ) wholly black, first flagellomere 1.2 times longer than wide; arista black, minutely pubescent, with basal segment 0.37 times as long as apical segment. Proboscis black with black hairs; palpus black with black hairs and one black apical bristle.
Thorax metallic green with pale gray pollen. Hairs and bristles on thorax black. Six strong dc (fifth divergent from the dc row), eight to nine irregularly paired acr short and hair-like; scutellum with two pairs of bristles (basal pair short and weak) and several pale short marginal hairs. Propleuron pale and black haired, with one black bristle at lower part. Legs [mid tarsus and hind tarsomeres 3–5 broken off] black, all coxae black, femora black; fore tarsus from tip of tarsomere 1 onward black, hind tibia (except extreme base) and hind tarsus black. Hairs and bristles black; mid and hind coxae each with one outer bristle; mid and hind femora each with one preapical bristle. Hind femur with one row of 12 black postero-ventral bristles (shorter than thickness of femur). Fore tibia with two ad, two pd and one pv, apically with two short bristles; mid tibia with four ad, two pd and one av, apically with four bristles; hind tibia with six ad, six pd and one row of ten v, apically with three bristles. Hind tarsomere 1 with three d and two l. Relative lengths of tibia and five tarsomeres LI 1.6 : 0.9: 0.35: 0.25: 0.2: 0.2; LII 2.15 : 1.15: 0.65: 0.5: 0.3: 0.25; LIII 2.5 : 1.25: 1.15:?:?:?. Wing hyaline, tinged with grayish. Veins brown, M without rudimentary M 2, costal callus stigma-like. CuAx ratio 0.6. Squama yellow with black hairs; halter pale yellow .
Abdomen metallic green. Hairs and bristles on abdomen black. Male genitalia ( Figures 4B–E View Figure 4 ): Epandrium distinctly longer than wide; inner epandrial lobe distinct, outer epandrial lobe with two apical bristles; cercus with distinct finger-like processes and marginal bristles; hypandrium narrow apically; aedeagus slender, slightly swollen apically.
Female. Unknown.
Measurements of male (mm). Body length 4.1 mm, wing length 3.7 mm.
Remarks
According to Stackelberg (1930) and Negrobov et al. (2005), the specimen runs to D. geniculatus Stannius , which differs from D. lepidus Staeger and D. microstigma Stackelberg by the costal callus indistinct.
Distribution
China (Jilin), Germany, Czech.
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.