Isonychia guixiensis Wu et al., 1992
publication ID |
https://dx.doi.org/10.3897/zookeys.1178.104619 |
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lsid:zoobank.org:pub:D2371186-B406-4F65-9AA5-EB961F9D7D0C |
persistent identifier |
https://treatment.plazi.org/id/2A942885-FB09-5C21-BF35-2BDA6808203E |
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scientific name |
Isonychia guixiensis Wu et al., 1992 |
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Isonychia guixiensis Wu et al., 1992 View in CoL
Isonychia guixiensis Wu et al., 1992: 78 (male, female). Type from Jiangxi province, China; You and Gui 1995: 25 (male); Gui and Zhou 1999: 126.
Isonychia sinensis Wu et al., 1992: 79 (male, female). Type from Jiangxi province, China; You and Gui 1995: 27 (male); Su and Zhu 1997: 121 (egg) (synonymized by Zhou 2013: 196).
Material examined.
Holotype of I. guixiensis (male imago), Guixi City , Jiangxi Province, China, 4-6-VI-1990, collected by Lixin Tian, Lianfang Yang; paratypes of I. guixiensis : 10 male imagos and 12 female imagos, same data as the holotype . Holotype of I. sinensis (male imago), Guixi City , Jiangxi Province, China, 4-6-VI-1990, collected by Lixin Tian, Lianfang Yang; paratypes of I. sinensis : 5 male imagos and 13 female imagos, same data as the holotype .
Diagnosis.
The male of I. guixiensis has transparent wings (Fig. 1A, B View Figure 1 ), dark brown forefemora, foretibiae, apical half of tarsal segment I-IV and tarsal segment V (Fig. 1D View Figure 1 ). Its abdominal terga are brown with a pale median line and dark longitudinal submedian stripes (Fig. 1E View Figure 1 ). The penes are nearly cylindrical with pointed apicolateral angles, and membranous processes beneath penes are clear (Fig. 1F-H View Figure 1 ). The females are similar to the males, with concave sternum IX (Fig. 1C View Figure 1 ).
This species and I. kiangsinensis can be found sympatrically in Jiangxi province, central China. They can be differentiated by the following characters: (1) I. guixiensis is smaller than I. kiangsinensis ; (2) the body of I. guixiensis is brown to dark brown (Fig. 1E View Figure 1 ) while the body of I. kiangsinensis is usually pink to reddish; (3) I. guixiensis has distinct brown markings on abdomen (Fig. 1E View Figure 1 ) while the I. kiangsinensis has none. (4) their penes are dissimilar: those of I. kiangsinensis are triangular but penes of I. guixiensis are nearly cylindrical with pointed apicolateral angles (Fig. 1G View Figure 1 ).
Description.
See Wu et al. (1992).
Distribution.
China (Jiangxi province).
Remarks.
Wu et al. (1992) named two species, I. guixiensis and I. sinensis , in a single paper, with the penes of I. guixiensis appearing remarkably small. After checking all types of those two species, we found no difference between them, and their abdominal markings are absolutely less distinct than those in the original figures of Wu et al. (1992), and the synonymy of two species is confirmed here. Because the name of I. guixiensis is before I. sinensis in the same paper, the former is retained as the valid name.
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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Isonychia guixiensis Wu et al., 1992
Qiang, Xin-He & Zhou, Chang-Fa 2023 |
Isonychia sinensis
Wu & Gui 1992 |