Dolichogenidea pentgona 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.5587434 |
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persistent identifier |
https://treatment.plazi.org/id/03AC87CF-E17D-FFCD-7FF9-5C10FAD8DB58 |
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treatment provided by |
Plazi |
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scientific name |
Dolichogenidea pentgona Liu & Chen |
| status |
sp. nov. |
Dolichogenidea pentgona Liu & Chen , sp. nov.
( Figs 51 View FIGURE 51 , 69 View FIGURE 69. 61–75 )
Description. Holotype. Female. Body length 1.8 mm, fore wing length 2.3 mm.
Head. Weakly transverse in dorsal view, 1.6× as wide as long, nearly as wide as mesoscutum ( Fig. 51g View FIGURE 51 ). Temple a little shiny with shallow punctuation, not constricted behind eyes from dorsal view. Face ( Fig. 51f View FIGURE 51 ) transverse, 0.8× as high as wide, shiny with small punctures, inner margins of eyes indistinctly converged posteriorly. Posterior tangent to anterior ocellus virtually touching posterior pair of ocelli, distance between fore and a hind ocellus as long as diameter of an hind ocellus, POL:OD:OOL = 3.5:1.5:3.0. Antenna as long as body, penultimate antennomere 1.5× longer than wide.
Mesosoma. Length:width:height = 32.0:22.0:21.5. Disc of mesonotum ( Fig. 51e View FIGURE 51 ) shiny, deeply punctate, punctures sparse and unevenly distributed on lateral-posterior sides, slightly rugulose between punctures on medio-posterior part. Scutellar sulcus nearly straight, broad with carinae inbetween. Scutellum highly shiny and polished with some shallow punctures. Propodeum shiny, with well-defined pentagonal areolation which closed at anterior end, costulae well-defined, three posterior fields polished and smooth, shiny and anterio-lateral parts slightly uneven with indistinct punctures. Mesopleuron highly polished and with shallow punctures anteriorly.
Legs. Hind femur slightly stout (3.0× as long as wide). Hind tibia and tarsus missing.
Wings. Pterostigma small, 3.2× as long as its widest part ( Fig. 51b View FIGURE 51 ). Vein 1-R1 1.3× longer than pterostigma, 6.0× as long as its distance from apex of marginal cell. Vein r arising from middle of pterostigma, perpendicular to pterostigma, nearly as long as width of pterostigma, r weakly longer than 2-SR, distinctly angled at meeting, 2-M 4/5 of 2-SR and a little longer than 1-SR and as long as 2-SR+M, m-cu as long as r. First discal cell of fore wing 1.2× as wide as high. Second discal cell of hind wing indistinct, 2.0× wider than high. Vein cu-a strongly incurved ( Fig. 51d View FIGURE 51 ).
Metasoma. 0.9× longer than mesosoma. T1 ( Fig. 51h View FIGURE 51 ) parallel-sided, but slightly constricted posteriorly, 1.7× longer than hind width, basal 1/3 concave and nearly polished, turned-over part 1.1× longer than wide, strongly rugose, shiny and polished at medio-apically. T2 highly shiny, polished with weak transversal striae at apex, 3.2× wider than long in middle, nearly straight apically. T3 1.5× longer than T2. Tergites posterior to T2 highly polished, shiny, and sparsely pubescent. Hypopygium not longer than apex of metasoma. Ovipositor sheath ( Fig. 51i View FIGURE 51 ) 0.6 length of hind femur, very thin and parallel-sided, ovipositor weakly curved and with a weakly differentiated apical attenuation which nearly equal to basal part.
Colour. Black, T2–T3 yellowish brown ( Fig. 51a, h View FIGURE 51 ). Tegula black. Palpi whitish. Antenna and ovipositor sheath brown. Labrum dark reddish brown and mandible yellowish brown. Legs yellow, coxae dark. Wing membrane hyaline, vein 1-R1, C+SC+R, upper border of pterostigma dark brown, pterostigma, r, 2-SR and 2-M light brown and other alar veins more or less whitish yellow, pterostigma without basal spot.
Male. Unknown.
Host. Unknown.
Material examined ( ZJUH). Holotype: ♀, Tianchi, Jianfengling , Hainan, 2008.XI.25, Wang Manman, No. 200806127.
Distribution. Oriental [ China: Hainan].
Etymology. The specific name “ pentgona ” derived from the Latin, referring to the areolation on propodeum is pentagonal.
Remarks. This species is closely similar to D. clausa Liu & Chen , sp. nov. but differs in the following: pterostigma without basal spot (the latter with); head less transverse in dorsal view, 1.6× as wide as long (the latter more transverse, 2.0×); temple not constricted behind eyes from dorsal view (the latter strongly constricted).
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.