Tachycines (Tachycines) huaxi, Huang & Luo, 2019
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publication ID |
https://doi.org/ 10.11646/zootaxa.4658.2.14 |
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publication LSID |
lsid:zoobank.org:pub:CD664B4B-5F7A-4194-BE3B-564BB489FBE2 |
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persistent identifier |
https://treatment.plazi.org/id/986187A3-FA3F-2E75-FF74-A0ACFB59FE19 |
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treatment provided by |
Plazi |
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scientific name |
Tachycines (Tachycines) huaxi |
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sp. nov. |
Tachycines (Tachycines) huaxi View in CoL sp. nov.
( Figs. 1 View FIGURE 1 , 2 View FIGURE 2 )
Description. Male. Body medium sized ( Figs. 1 View FIGURE 1 A–C). Vertex of head divided into two conical tubercles, bases of the well-developed tubercles drawn together, obtusely rounded apices separated ( Fig. 1D View FIGURE 1 ).
Anterior margin of pronotum straight, posterior margin protruding backward, ventral margin arc-shaped; posterior margin of mesonotum protruding backward; posterior margin of metanotum rather straight.
Legs long and slender; coxae with pronounced medial projections; fore femur about 1.52 times longer than the pronotum, ventrally with 12–15 spines, internal genicular lobe with 1 small spine, external genicular lobe with 1 long spine; fore tibiae ventrally with 1inner spine and 2 outer spines, apex with 1 small outer spine on dorsal surface and 1 pair of long spines on ventral surface, between the paired ventral spines with 1 small spine. Middle femur unarmed ventrally, internal and external genicular lobes with 1 long spine respectively; middle tibiae ventrally with 1 inner spine and 1 outer spine, apex with 1 pair of dorsal spines and 1 pair of ventral spines, between the paired ventral spines with 1 small spine. Hind femur ventrally with 7–9 inner spines and without outer spine; hind tibiae dorsally with 40–65 inner spines and 42–62 outer spines, arrange in groups, ventral and dorsal surface with a pair of small subapical spines respectively, apex with 1 pair of dorsal spines and 1 pair of ventral spines; the longest dorsoapical spine reaching apex of dorso-apical spine of hind metatarsus ( Fig. 1E View FIGURE 1 ). Hind metatarsus with bristles beneath. Epiproct transverse, with wide apical part; hind margin of epiproct notched.
Epiphallus of male genitalia like the shape of “A”; median lobe of genitalia with 2 pairs of apical lobules and distinct lateral sclerites; dorsal and ventral pairs of lateral lobes almost equal in length ( Figs. 1H, I View FIGURE 1 ).
Female. General appearance similar to that of male ( Figs. 2 View FIGURE 2 A–C). Ovipositor longer than half the length of hind femur; base of ovipositor broad, narrowing to apex; apex pointed and slightly curved upwards; small denticles on ventral edge of distal part of inferior valves ( Fig. 2D View FIGURE 2 ). Subgenital plate rounded, with hind margin notched ( Fig. 2E View FIGURE 2 ).
Coloration. Body light brown with distinct dark brown stripes. The two conical tubercles of vertex black. Face with 2 dark brown longitudinal stripes ( Fig. 1F View FIGURE 1 ). Posterior margin of pronotum, mesonotum, metanotum and abdominal tergites with dark brown irregular stripes ( Figs. 1A, B View FIGURE 1 ). Middle part of pronotum with 2 dark brown stripes ( Fig. 1G View FIGURE 1 ). Legs with dark brown annular stripes.
Material examined. Holotype: 1♂, Huaxi District, Guiyang City , Guizhou Province, 15.VI.2017, coll. Shihui Huang & Changqing Luo. Paratypes: 6♂, 4♀, same data as the holotype .
Measurements (mm). Body: ♂ 11.45–14.50, ♀ 13.80–13.96; pronotum: ♂ 5.87–6.88, ♀ 6.25–7.23; fore femur: ♂ 8.33–10.52, ♀ 9.55–11.51; hind femur: ♂ 16.06–19.63, ♀ 19.05–20.24; ovipositor: 13.24–14.60.
Distribution. China (Guizhou).
Discussion. Recently, Qin et al. (2018) detailedly redescribed the species T. (T.) asynamorus . The new species is rather similar to T. (T.) asynamorus , and the two species are different from all other species in this subgenus in that: hind metatarsus with bristles ventrally. However, some significant characteristics of males can be applied to distinguish T. (T.) huaxi sp. nov. and T. (T.) asynamorus . The shape of the median lobe of male genitalia is distinctly different between the two species. The epiproct of T. (T.) huaxi sp. nov. is transverse and its hind margin is notched, but in T. (T.) asynamorus , the epiproct is rounded. In addition, there are two dark brown stripes on the middle part of the pronotum of T. (T.) huaxi sp. nov., but in T. (T.) asynamorus , the middle part of the pronotum possess three dark brown stripes.
Etymology. The specific epithet refers to the Huaxi district where this species occurs.
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.