Ischnobracon guttatus, Li & Achterberg & Chen, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.1038.55258 |
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publication LSID |
lsid:zoobank.org:pub:8FDAC6A3-30AB-4D33-9C00-9189A44FD8EE |
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persistent identifier |
https://treatment.plazi.org/id/7979DF17-3122-46D1-BFB2-F1E4F9F4922F |
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taxon LSID |
lsid:zoobank.org:act:7979DF17-3122-46D1-BFB2-F1E4F9F4922F |
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treatment provided by |
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scientific name |
Ischnobracon guttatus |
| status |
sp. nov. |
Ischnobracon guttatus sp. nov. Figures 17 View Figure 17 , 18 View Figure 18
Material examined.
Holotype: ♀, China, Hainan Prov., Jianfengling , 29.IV.1983, Gu Maobin, No. IOZ(E)1964612 (IZCAS).
Diagnosis.
This new species is very similar to I. baltazarae Quicke & Butcher, 2010 [Philippines], but can be separated from the latter by the following characters: scape blackish brown with a reversed U-shaped yellow spot dorsally (yellow with black lateral streak in I. baltazarae ); second submarginal cell of fore wing relatively short, vein 2-M 2.8 × as long as vein 2-SR (3.45 × vein 2-SR); fore wing vein cu-a distinctly curved and postfurcal (straight and interstitial); base of hind wing with rather narrow glabrous areas on either side of vein cu-a (hind wing subbasal cell glabrous on posterior half and with large glabrous area distal to vein cu-a); hind femur yellow, without black mark (hind femur black ventro-distally).
Description.
Holotype, ♀, length of body 14.8 mm, of fore wing 12.0 mm, of ovipositor sheath 9.0 mm.
Head. Antenna incomplete, with 88 antennomeres remaining; median antennomeres 1.6 × wider than their length; third antennomere 1.1 and 1.2 × longer than fourth and fifth respectively, the latter being 1.4 × wider than its length; scapus 1.5 × longer than its apical width (Fig. 18j View Figure 18 ); tentorio-ocular distance: inter-tentorial distance: distance between clypeus and antennal sockets = 7: 9: 14; shortest distance between eyes: head width: eye height = 18: 35: 17; shortest distance between posterior ocelli: shortest distance between posterior ocellus and eye: width of head behind eyes (occiput) = 4: 9: 34; occiput with sparse setae medially, and with dense long setae laterally (Fig. 18h View Figure 18 ).
Mesosoma. Length of mesosoma twice its height (Fig. 18c View Figure 18 ); notauli only impressed on anterior third of mesoscutum (Fig. 18d View Figure 18 ).
Wings. Fore wing (Fig. 18a View Figure 18 ): r: SR1: 3-SR = 8: 17: 19; 1-SR+M more or less straight; 2-SR: 3-SR: r-m = 8: 17: 8; 2-M 2.8 × longer than 2-SR; cu-a strongly curved and postfurcal. Hind wing (Fig. 18b View Figure 18 ): base with a rather narrow glabrous area distal to cu-a; 2-SC+R distinctly transverse; 1r-m 1.9 × longer than SC+R1.
Legs. Length of fore femur: tibia: tarsus = 24: 27: 38; fore basitarsus 4.2 × longer than its maximum width; fore tarsus ventro-apically with rather dense and long setae; length of hind femur: tibia: basitarsus = 33: 48: 16; length of femur, tibia and basitarsus of hind leg 3.9, 8.0 and 4.0 × their maximum width, respectively (Fig. 18f View Figure 18 ).
Metasoma. Metasomal tergites smooth (Fig. 18e View Figure 18 ); length of T I 1.6 × its apical width, raised median area not depressed medially (Fig. 18e View Figure 18 ); median length of T II 1.1 × its apical width; antero-lateral areas of T III large, apical width of T III 1.2 × its median length (Fig. 18e View Figure 18 ); tergites with dense and long setae especially posteriorly except for the raised areas (Fig. 18e View Figure 18 ); ovipositor sheath 0.7 × as long as fore wing.
Colour. Largely yellow (Fig. 17 View Figure 17 ); eye, mandible apically, metanotum and propodeum blackish brown (Fig. 18d, g View Figure 18 ); antenna blackish brown, becoming yellow towards apex (Fig. 17 View Figure 17 ); scapus with a reverse yellow U-shaped spot dorsally (Fig. 18k View Figure 18 ); around stemmaticum with a drop-shaped black spot (Fig. 18h View Figure 18 ); ovipositor sheath black (Fig. 17 View Figure 17 ); wing membrane largely yellow but smoky grey apically; stigmal spot brown; marginal cell with a small brown spot anteriorly; pterostigma yellow; veins largely yellow (Fig. 18a, b View Figure 18 ).
Biology.
Unknown.
Distribution.
China (Hainan).
Etymology.
Named after the surrounded area of stemmaticum with a drop-shaped black spot: guttatus is Latin for drop-shaped.
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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