Walteriella Kazantsev, 2001

Hsiao, Yun & Okushima, Yûichi, 2025, A taxonomic review of Walteriella Kazantsev, 2001 (Coleoptera: Cantharidae) from Taiwan, with description of a new species and a nomenclatural act on Leiothorax Wittmer, 1978, Zootaxa 5692 (1), pp. 57-76 : 59

publication ID	https://doi.org/10.11646/zootaxa.5692.1.3
publication LSID	lsid:zoobank.org:pub:F5DB50CE-5447-4371-A191-AEFE7C27C07D
DOI	https://doi.org/10.5281/zenodo.17321099
persistent identifier	https://treatment.plazi.org/id/962B8793-FF89-FF82-9685-85DB2EE754C7
treatment provided by	Plazi
scientific name	Walteriella Kazantsev, 2001
status

Treatment

Genus Walteriella Kazantsev, 2001 View in CoL

Figs. 1–10 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 View FIGURE 8 View FIGURE 9 View FIGURE 10

Walteria Kasantsev, 1999: 117 View in CoL [nec Walteria Schulze, 1886 View in CoL ].

Walteriella Kazantsev, 2001: 1081 View in CoL .

Type species, by original designation: Lycocerus particularis Pic, 1923 ( Fig. 2A View FIGURE 2 ).

Diagnosis (after Kasantsev 1999). Walteriella can be distinguished from other cantharine genera by the combination of following characters: usually reddish to yellowish-brown elytra ( Figs. 1 View FIGURE 1 , 2A, D–E View FIGURE 2 , 3 View FIGURE 3 ), densely covered with pubescence; serrate ( Figs. 1A–B View FIGURE 1 , 3A, D–E View FIGURE 3 ) or filiform antennae, with antennomeres simple or slightly or strongly flattened ( Figs. 1C–F View FIGURE 1 , 2A View FIGURE 2 , 3B–C, F–M View FIGURE 3 ); subquadrate ( Fig. 2B View FIGURE 2 ) to trapezoidal ( Fig. 2C View FIGURE 2 ) pronotum, with anterior angles and margin rounded and somewhat expanded, lateral margins absent on posterior half in some species and disc distinctly convex; broadly expanded elytra ( Figs. 1A–B View FIGURE 1 , 2A View FIGURE 2 , 3A, D–E View FIGURE 3 ), with lateral sides rounded or slender, parallel-sided ( Figs. 1C–F View FIGURE 1 , 3B–C, F–M View FIGURE 3 ); strongly ( Figs. 1A–B View FIGURE 1 , 2A View FIGURE 2 , 3A, D–E View FIGURE 3 ) or weakly ( Figs. 1C–F View FIGURE 1 , 3B–C, F–M View FIGURE 3 ) developed elytral costae; legs with long bristling setae; simple claws or anterior claw of each leg with a small basal tooth; posterior margin of abdominal ventrite VII of female ( Fig. 7 View FIGURE 7 ) subrounded or subtruncate laterally, with a weakly sclerotised membrane behind the middle emargination; oval aedeagus, with the dorsal plate of each paramere distinctly curved inwards, forming a broad middle emargination ( Figs. 5C, G, K View FIGURE 5 , 6C View FIGURE 6 ) and an apical lock ( Figs. 5D, H, L View FIGURE 5 , 6D View FIGURE 6 ).

Key to the adults of Walteriella View in CoL from Taiwan

1 Pronotum red, covered with reddish pubescence ( Figs. 1A–B View FIGURE 1 , 3A, D–E View FIGURE 3 ); antennae serrate; elytra strongly expanded, with four distinctly developed costae ( Fig. 2D View FIGURE 2 ).............................................................. W. taiwana

- Pronotum black to reddish brown, covered with pale pubescence ( Figs. 1C–F View FIGURE 1 , 3B–C, F–M View FIGURE 3 ); antennae filiform; elytra parallel-sided or only weakly widened apically, with two weakly developed costae ( Fig. 2E View FIGURE 2 )................................ 2

2 Elytra yellowish brown, about 3.4–3.6 times as long as wide in males ( Figs. 1F View FIGURE 1 , 3L–M View FIGURE 3 )............ W. kasugana sp. nov.

- Elytra red to reddish brown ( Figs. 1C–E View FIGURE 1 , 3C, F, H–K View FIGURE 3 ), if yellowish brown ( Fig. 3B, G View FIGURE 3 ), elytra more elongate, about 3.8–4.0 times as long as wide in males.......................................................................... 3

3 Head and pronotum weakly lustrous ( Fig. 4A–B View FIGURE 4 ); head densely covered with pubescence; male: eyes moderately protruding, with ratio of eye diameter to interocular space 1.0:2.8–3.7; aedeagus: oval, dorsal plate of each paramere with rounded or obtuse apex, middle emargination oval ( Fig. 5G View FIGURE 5 ); female genitalia with accessory gland about 2.0 times as long as diverticulum ( Fig. 8B View FIGURE 8 ).................................................................................. W. brunnea

- Head and pronotum strongly lustrous ( Fig. 4C–D View FIGURE 4 ); head sparsely covered with pubescence, with frons glabrous; male: eyes large and strongly protruding, with ratio of eye diameter to interocular space 1.0:2.2–2.5; aedeagus: trapezoidal, dorsal plate of each paramere with acute apex, middle emargination with upper part distinctly widened ( Fig. 5K View FIGURE 5 ); female genitalia with accessory gland more than 3.0 times as long as diverticulum ( Fig. 8C View FIGURE 8 )................... W. sanguinea brevemarginata