Dolichogenidea clausa Liu & Chen, 2019
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publication ID |
https://doi.org/ 10.11646/zootaxa.4710.1.1 |
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publication LSID |
lsid:zoobank.org:pub:DC6FD1A7-ADEA-4631-B4FB-FE1E2DC89777 |
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DOI |
https://doi.org/10.5281/zenodo.5587390 |
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persistent identifier |
https://treatment.plazi.org/id/03AC87CF-E13C-FF8D-7FF9-5E2CFD43D95F |
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treatment provided by |
Plazi |
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scientific name |
Dolichogenidea clausa Liu & Chen |
| status |
sp. nov. |
Dolichogenidea clausa Liu & Chen , sp. nov.
( Figs 16 View FIGURE 16 , 66 View FIGURE 66. 1–20 )
Description. Holotype. Female. Body length 2.4 mm, fore wing length 2.6 mm.
Head. Transverse in dorsal view, 2.0× as wide as long, as wide as mesoscutum ( Fig. 16h View FIGURE 16 ). Temple a little shiny with shallow punctuation, strongly constricted behind eyes from dorsal view. Face ( Fig. 16f View FIGURE 16 ) transverse, 0.7× as high as wide, a little shiny, shallowly punctate, inner margins of eyes indistinctly converged posteriorly. Posterior tangent to anterior ocellus weakly transecting posterior pair of ocelli, distance between fore and a hind ocellus shorter than diameter of an hind ocellus, POL:OD:OOL = 4.0:2.0:3.3. Antenna shorter than body, penultimate antennomere 1.3× longer than wide.
Mesosoma. Length:width:height = 38.0:24.0:28.0. Disc of mesonotum ( Fig. 16d View FIGURE 16 ) shiny, densely and deeply punctate, slightly rugulose between punctures on medial-posterior part. Scutellar sulcus nearly straight, broad with carinae inbetween. Scutellum shiny and polished with some shallow punctures. Propodeum ( Fig. 16g View FIGURE 16 ) shiny, with well-defined areolation which closed at anterior end, costulae well-defined, three posterior fields polished and smooth, shiny and slightly uneven with indistinct punctures anterio-laterally. Mesopleuron highly polished and with more or less coarse punctures anteriorly.
Legs. Spines on outer side of hind tibia disperse. Inner spur of hind tibia 2/5 of hind basitarsus, outer spur 3/10 length of hind basitarsus. Basitarsus of hind leg as long as tarsomeres 2–4.
Wings. Pterostigma 3.0× as long as its widest part ( Fig. 16b View FIGURE 16 ). Vein 1-R1 1.1× longer than pterostigma, 6.6× as long as its distance from apex of marginal cell. Vein r arising from middle of pterostigma, a little inclined outward, 0.8× as long as width of pterostigma, r as long as 2-SR, distinctly angled at meeting, 2-M nearly 3/5 of 2-SR and indistinctly longer than 1-SR and weakly shorter than 2-SR+M, m-cu weakly longer than 2-SR. First discal cell of fore wing as wide as high. Second discal cell of hind wing 1.5× wider than high. Vein cu-a incurved ( Fig. 16e View FIGURE 16 ).
Metasoma. 1.2× longer than mesosoma. T1 ( Fig. 16c View FIGURE 16 ) weakly arched laterally, 1.6× longer than hind width, basal third concave and nearly polished, turned-over part weakly longer than wide, strongly rugose. T2 highly shiny, polished but slightly uneven, 3.0× wider than long in middle, nearly straight apically. T3 anterior brown part as long as T2, but entirely (including the hind whitish part) 1.4× longer than T2. Tergites posterior to T2 highly polished, shiny, and pubescent. Hypopygium slightly shorter than apex of metasoma. Ovipositor sheath as long as hind basitarsus, thin and parallel-sided.
Colour. Black, tergites posterior to T1 brown, T3–T4 widely whitish apically, lateral margins of T1–T3 whitish ( Fig. 16a View FIGURE 16 ). Tegula dark. Palpi and spurs whitish. Antenna and ovipositor sheath yellowish brown. Labrum reddish brown and mandible yellowish. Legs yellow, all coxae dark, mid tarsus, apical two thirds of hind tibia and hind tarsus infuscate. Wing membrane hyaline, vein 1-R1, C+SC+R, pterostigma, r, 2-SR and 2-M brown and other alar veins more or less whitish yellow, pterostigma with a weakly defined whitish basal spot.
Male. Unknown.
Host. Unknown.
Material examined ( ZJUH). Holotype: ♀, Tianchi, Jianfengling , Hainan, 2007.X.22–23, Liu Jingxian, No. 200710391.
Distribution. Oriental [ China: Hainan].
Etymology. The specific name “ clausa ” derived from the Latin adjective “clausus”, referring to areolation on propodeum closed anteriorly.
Remarks. This species is similar to D. minuscula Liu & Chen , sp. nov., but differs in the following: vein r as long as 2-SR (the latter 1.4× longer); disc of mesonotum densely punctate (the latter sparsely punctate); and metasoma 1.2× longer than mesosoma (the latter 0.8×).
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.