Bracon (Uncobracon) eurysulcatus, Li & He & Chen, 2020
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publication ID |
https://dx.doi.org/10.3897/dez.67.57668 |
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publication LSID |
lsid:zoobank.org:pub:41F77B2A-0E1C-4874-AE89-1E72B3DD6A32 |
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persistent identifier |
https://treatment.plazi.org/id/B6EADCA5-A731-4D5A-B733-55785B41D983 |
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taxon LSID |
lsid:zoobank.org:act:B6EADCA5-A731-4D5A-B733-55785B41D983 |
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treatment provided by |
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scientific name |
Bracon (Uncobracon) eurysulcatus |
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sp. nov. |
Bracon (Uncobracon) eurysulcatus sp. nov. Figs 23 View Figure 23 , 24 View Figure 24
Type material.
Holotype. ♀, China, Guangxi Prov., Longzhou Nonggang, 20.V.1982, He Junhua, No. 821603 ( ZJUH).
Diagnosis.
This new species is very similar to B. (U.) tricoloratus Tobias, 2000, but can be separated from the latter by the following characters: in dorsal view length of eye 2.6 × temple (1.8 × temple in B. (U.) tricoloratus ); scutellar suture rather wide, with sparse (four) crenulae (relatively narrow, with at least eight crenulae); first and second metasomal tergites whitish-yellow and with black spots (entirely blackish-brown); medio-basal area of second tergite connected to medio-longitudinal carina distally (without medio-longitudinal carina).
Description.
Holotype, ♀, length of body 5.6 mm, of fore wing 6.0 mm, of ovipositor sheath 3.6 mm.
Head. Antenna with 43 segments; apical antennal segment with a short spine apically, 2.3 × longer than its maximum width (Fig. 24l View Figure 24 ); first flagellomere 1.4 × longer than wide, 1.1 and 1.2 × longer than second and third, respectively, the latter being 1.2 × longer than wide; malar suture rather weak, with some short setae; clypeus height: inter-tentorial distance: tentorio-ocular distance = 3: 10: 5; clypeus sparsely short setose; eye nearly not emarginate (Fig. 24g View Figure 24 ); face transverse rugose, weakly convex medially and with dense long setae laterally (Fig. 24g View Figure 24 ); eye height: shortest distance between eyes: head width = 15: 19: 40; frons weakly granulate, weakly concave behind antennal sockets, with a median groove and densely short setose laterally (Fig. 24h View Figure 24 ); vertex weakly granulate, with dense short setae; shortest distance between posterior ocelli: minimum diameter of elliptical posterior ocellus: shortest distance between posterior ocellus and eye = 3: 3: 7; temples strongly narrowed behind eyes (Fig. 24h View Figure 24 ).
Mesosoma. Length of mesosoma 1.3 × its height (Fig. 24c View Figure 24 ); notauli complete and deeply impressed (Fig. 24d View Figure 24 ); mesoscutum smooth, with sparse short setae along notaulic courses (Fig. 24d View Figure 24 ); scutellar sulcus deep, wide, with four strong crenulae (Fig. 24d View Figure 24 ); scutellum smooth, with dense short setae posteriorly; metanotum moderately convex medially, with a short carina anteriorly (Fig. 24d View Figure 24 ); propodeum largely smooth, with a complete medio-longitudinal carina and a few oblique short carinae laterally and laterally with dense long setae (Fig. 24d View Figure 24 ).
Wings. Fore wing (Fig. 24a View Figure 24 ): SR1: 3-SR: r = 53: 27: 9; 1-SR+M weakly curved posteriorly, 1.3 × longer than 1-M; 2-SR: 3-SR: r-m = 17: 27: 13; m-cu straight, 1.5 × longer than 2-SR+M; angle between 1-SR and C+SC+R about 80°; cu-a interstitial. Hind wing (Fig. 24b View Figure 24 ): SC+R1: 2-SC+R: 1r-m = 20: 5: 9.
Legs. Length of fore femur: tibia: tarsus = 30: 34: 37; length of hind femur: tibia: basitarsus = 45: 54: 20; length of femur, tibia and basitarsus of hind leg 4.6, 8.3 and 5.7 × their maximum width, respectively; hind tibial spurs 0.4 and 0.5 × as long as hind basitarsus.
Metasoma. Length of first tergite 0.9 × its apical width; first tergite concave medio-basally, median area convex and strongly sculptured posteriorly, with a short medio-longitudinal carina posteriorly (Fig. 24k View Figure 24 ); lateral grooves of first tergite moderately wide, with sparse weak crenulae (Fig. 24k View Figure 24 ); second tergite coarsely sculptured, with a small and rugose triangular medio-basal area connected to medio-longitudinal carina apically (Fig. 24e View Figure 24 ); second metasomal suture wide, deep, with sparse, but strong crenulae, curved medially (Fig. 24e View Figure 24 ); third tergite with fine antero-lateral grooves; third to sixth tergites coarsely sculptured (Fig. 24e View Figure 24 ); seventh tergite smooth (Fig. 24e View Figure 24 ); setose part of ovipositor sheath 0.6 × length of fore wing.
Colour. Head and mesosoma largely reddish-yellow (Fig. 23 View Figure 23 ); antenna, eye, mandible apically, metapleuron and propodeum black (Fig. 24c, d, g View Figure 24 ); fore leg reddish-yellow (but claws black), middle and hind legs black (Figs 23 View Figure 23 , 24f View Figure 24 ); metasoma largely black, first and second metasomal tergites laterally, third tergite antero-laterally and seventh tergite posteriorly yellow (Fig. 24e, k View Figure 24 ); ovipositor sheath black (Fig. 23 View Figure 23 ); wing membrane pale infuscate, pterostigma and veins dark brown (Fig. 24a, b View Figure 24 ).
Biology.
Unknown.
Distribution.
China (Guangxi).
Etymology.
Named after the wide scutellar sulcus: “eurys” is Greek for “wide” and “sulcus” is Latin for “groove”.
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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