Berothella, Banks, 1934

Liu, Xingyue & Li, Di, 2021, Discovery of the pleasing lacewing subfamily Berothellinae (Neuroptera: Dilaridae) from Borneo, with description of a new species of Berothella Banks, Zootaxa 5005 (3), pp. 388-394 : 388-389

Key to species of Berothella

1. Body largely blackish brown; forewing with six series of brown, transversely band-like markings from wing base to apex; hindwing entirely greyish brown ( Figs 1 , 5 ); Eastern Malaysia................................... B. weiweii sp. nov.

- Body generally pale yellow to yellowish brown; forewing with yellowish brown markings, which are irregularly dotted; hindwing generally hyaline or pale yellow ( Liu et al. 2017: fig. 5; Zheng & Liu 2021: figs. 1, 4).......................... 2

2. Forewing costal space with three brownish markings; forewing MA with secondary branching point of MA1 proximad secondary branching point of MA2 ( Zheng & Liu 2021: fig. 1A–C); China (Taiwan) ........ Berothella wenii Zheng & Liu, 2021

- Forewing costal space with four brownish markings; forewing MA with secondary branching point of MA2 distad secondary branching point of MA1................................................................................ 3

3. Forewing MP with posterior branch partially fused with CuA ( Liu et al. 2017: fig. 5F); male gonocoxites 10 converging posteriorly, proximally approximating lateral ends of fused gonocoxites 11, distally without recurved projection ( Liu et al. 2017: fig. 6D–F); Western Malaysia.................................................... Berothella phantoma Banks, 1934

- Forewing MP not fused with CuA; male gonocoxites 10 not converged posteriad, nearly parallel with each other, proximally distinctly apart from lateral ends of fused gonocoxites 11, distally with recurved projection........................... 4

4. Forewing CuP proximally straight ( Liu et al. 2017: fig. 5H); male supraanale concaved posteriorly ( Liu et al. 2017: fig. 6G–H); China (Hainan).............................................................. Berothella pretiosa Banks, 1939

- Forewing CuP proximally arcuately curved; male supraanale posteriorly not concaved.............................. 5

5. Male gonostylus 9 extremely short; male ectoproct tiny ( Liu et al. 2017: fig. 6A–C) compared with B. falcata ; Laos............................................................ Berothella holzschuhi U. Aspöck, Liu & H. Aspöck, 2017

- Male gonostylus 9 well developed as a long, hook-like sclerite; male ectoproct large, falcate ( Zheng & Liu 2021: fig. 5); China (Zhejiang)............................................................. Berothella falcata Zheng & Liu, 2021

Figures

FIGURE 5. Berothella weiweii sp. nov. holotype male, forewing. Scale bar: 1.0 mm.

FIGURES 1–3. Berothella weiweii sp. nov. holotype male. 1. habitus photo, dorsal view; 2. photo of head, dorsal view; 3. nygmata, dorsal view. Scale bar: 0.2 mm (Fig. 2); 1.0 mm (Figs 1, 3).