Liparura, Burr, 1907

Ye, Xiaohan, Kamimura, Yoshitaka, Li, Wenliang & Liu, Xingyue, 2023, A new earwig species of the genus Liparura Burr, 1907 (Dermaptera: Forficulidae from China, Zootaxa 5257 (1), pp. 178-186 : 179

Key to species of Liparura based on male characters

1. Male forceps simple, without any tooth or dorsal edge ( Steinmann 1993: fig. 275; Fig. 6A )........ L. simplex Brindle, 1975

- Male forceps with inner tooth or teeth or dorsal edge basally.................................................. 2

2. Male forceps with dorsal edge basally..................................................................... 3

- Male forceps without dorsal edge basally.................................................................. 4

3. Male forceps straight and without internal teeth ( Steinmann 1993: fig. 276; Fig. 6B ).............. L. punctata Burr, 1910

- Male forceps slightly curved with 1-2 small teeth at base ( Matzke, 2012: Table VII, fig. 6; Fig. 6C )................................................................................................... L. charlottea Matzke, 2012

4. Male ultimate tergite with smaller, but well-marked lateral spine ( Steinmann 1983: fig. 9; Fig. 6D )................................................................................................ L. cornuta (Bey-Bienko, 1959)

- Male ultimate tergite without lateral spine.................................................................. 5

5. Male ultimate tergite with four black longitudinal stripes...................................................... 6

- Male ultimate tergite without longitudinal stripes............................................................ 7

6. Abdomen deeply punctuate; inner margin of forceps crenate and with a large tooth at middle ( Srivastava 1977: fig. 4e; Fig. 6E )........................................................................... L. serrata Srivastava, 1977

- Abdomen shallowly punctate; inner margin of forceps smooth, except for a small tooth at middle ( Srivastava 1977: fig. 4a; Fig. 6F )....................................................................... L. kamengensis Srivastava, 1977

7. Base of male forceps each with two teeth ( Figs 2 , 6H ).................................... L. chongqingensis sp. nov.

- Male forceps armed with one or two teeth but not at base...................................................... 8

8. Pronotum almost quadrate; abdominal tergites shallowly punctate; forceps armed with a strong or weak tooth medially ( Kapoor et al. 1971: fig. 89; Fig. 6I )............................. … L. debrepaniensis ( Kapoor, Bharadwaj & Banerjee, 1971)

- Pronotum longer than broad; abdominal tergites deeply punctate; forceps armed with one or two teeth ( Fig. 6G )........................................................................................ L. dentata Srivastava, 1977

Figures

FIGURE 2. Liparura chongqingensis sp. nov., holotype male, terminalia. A. Dorsal view. B. Ventral view. Scale bar = 2 mm.

FIGURE 6. Male ultimate tergite and forceps of Liparura Burr, 1907. A. L. simplex Brindle, 1975; B. L. punctata Burr, 1910; C. L. charlottea Matzke, 2012; D. L. cornuta (Bey-Bienko, 1959); E. L. serrata Srivastava, 1977; F. L. kamengensis Srivastava, 1977; G. L. dentata Srivastava, 1977; H. L. chongqingensis sp. nov.; I. L. debrepaniensis (Kapoor, Bharadwaj & Banerjee, 1971). A, B, D redrawn from Steinmann; C redrawn from Matzke; E, F, G redrawn from Srivastava; I redrawn from Kapoor, Bharadwaj & Banerjee.