Separatatus platystigma, Zhu & Achterberg & Chen, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5569.3.1 |
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publication LSID |
lsid:zoobank.org:pub:2D59C36A-D41C-42B6-8380-FEB68A28DE9B |
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DOI |
https://doi.org/10.5281/zenodo.14734222 |
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persistent identifier |
https://treatment.plazi.org/id/9A1887C1-FFF0-FFA3-FF2F-3F3799B68A50 |
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treatment provided by |
Plazi |
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scientific name |
Separatatus platystigma |
| status |
sp. nov. |
Separatatus platystigma sp. nov.
Figs 17–18 View FIGURE 17 View FIGURE 18
Type material. Holotype, ♀ ( ZJUH), “ [NE. China:] Inner Mongolia, 4.vi.2017, YPT, No. 201850001”.
Description. Holotype, ♀, length of body 5.3 mm, of fore wing 5.7 mm.
Head. Comparatively transverse, width of head 1.6 × its lateral length ( Fig. 18I View FIGURE 18 ); antenna incomplete, with 22 antennomeres remaining, first flagellomere (including annellus) 0.9 × as long as second flagellomere, length of first and second flagellomere 3.0 and 3.3 × as long as their width, respectively ( Fig. 8I View FIGURE 8 ); length of maxillary palp 1.3 × height of head; eye glabrous, 1.5 × as long as temple in dorsal view ( Fig. 18I View FIGURE 18 ), eye in lateral view 1.35 × higher than wide ( Fig. 18K View FIGURE 18 ); frons flat ( Fig. 18I View FIGURE 18 ); vertex rather convex ( Fig 18I View FIGURE 18 ); OOL:diameter of ocellus:POL= 13:4:8; face 2.2 × wider that high, smooth with small inconspicuous punctures ( Fig. 18J View FIGURE 18 ); clypeus rather small, truncate and slightly convex laterally ( Fig. 18J View FIGURE 18 ); malar space absent; mandible moderately widened dorsally, dorsal teeth large and lobe-shaped, lateral teeth rather small and lobe-shaped, middle tooth curved; medial length of mandible 2.0 × its maximum width ( Figs 18L–M View FIGURE 18 ).
Mesosoma. Length of mesosoma 1.6 × its height ( Fig. 18C View FIGURE 18 ); pronope absent; medio-anteriorly pronotum crenulate, remainder of pronotum smooth; epicnemial area widely crenulated ( Fig. 18C View FIGURE 18 ); precoxal sulcus widely crenulate, only reaching anterior edge of epicnemial area, remaining removed from middle coxa ( Fig. 18C View FIGURE 18 ); pleural sulcus crenulated; episternal scrobe round and deep ( Fig. 18C View FIGURE 18 ); metapleuron rugose ( Fig. 18C View FIGURE 18 ); notauli incomplete, only present anteriorly, and distinctly crenulated ( Fig. 18D View FIGURE 18 ); medio-posterior depression deep and long, with some carinae, almost extending to middle of mesoscutum, mesoscutum smooth and bare; scutellar sulcus deep, with three longitudinal carinae, sulcus 4.0 × wider than its maximum length ( Fig. 18D View FIGURE 18 ); scutellum smooth; surface of propodeum densely reticulate-rugose, with medio-longitudinal carina distinctly protruding in lateral view, areola absent posteriorly, spiracle of propodeum large, diameter of its opening more than 1/5 of minimum distance from spiracle to anterior edge of propodeum ( Fig. 18E View FIGURE 18 ).
Wings ( Fig. 18A–B View FIGURE 18 ). Pterostigma short and wide, 3.5 × longer than its maximum width; vein r 0.45 × width of pterostigma. r:3-SR:SR1 = 7:26:50; SR1, 1-SR+M nearly straight and 2-SR curved; cu-a postfurcal, short; 1- CU1:2-CU1 = 5:24; 3-CU1 as long as CU1b; 2-SR:3-SR:r-m = 30:34:10; m-cu postfurcal, slightly converging to 1-M posteriorly; first subdiscal cell 2.4 × as long as wide; M+CU1 unsclerotised. Hind wing: M+CU: 1-M:1r-m = 30:17:12; m-cu absent.
Legs. Hind coxa smooth, with long setae ( Fig. 18G View FIGURE 18 ); tarsal claws rather robust and shorter than arolium; length of femur, tibia and basitarsus of hind leg 3.7, 9.0 and 5.0 × their width, respectively; apical bristles of first-fourth hind tarsal segments absent.
Metasoma. Length of first tergite 0.8 × its apical width, its surface longitudinally striate, its dorsal carinae widely separated from each other ( Fig. 18F View FIGURE 18 ); laterope present; dorsope rather large; second tergite longitudinally striate anteriorly; setose part of ovipositor sheath 0.25 × as long as fore wing (total visible sheath 0.29 times), flattened and sparsely setose and 0.82 × as long as hind tibia.
Colour. Reddish black ( Fig. 17 View FIGURE 17 ); mandible, palpi, ventral rim of eyes and trochanter, basal and apical part of tibia, tarsi of legs yellowish; pterostigma and veins brown, wing membrane hyaline.
Comparative diagnosis. The new species can be separated from other known species by the reddish black body, widened pterostigma medially, and comparatively long notauli, combined with long and sculptured medio-posterior depression of the mesoscutum.
Etymology. Named “ platystigma ” because of the medially widened pterostigma: “ platy ” is Greek for “broad”.
Etymology. Named “ platystigma ” because of the widened medially pterostigma: “platys” is Greek for “broad”.
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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