Argopistes tsoui, Lee & Chiang & Suenaga, 2024

Lee, Chi-Feng, Chiang, Ming-Yao & Suenaga, Haruki, 2024, The genus Argopistes Motschulsky from Japan and Taiwan, with descriptions of three new species from Taiwan (Coleoptera, Chrysomelidae, Galerucinae, Alticini), ZooKeys 1215, pp. 151-183 : 151-183

publication ID	https://doi.org/ 10.3897/zookeys.1215.134871
publication LSID	lsid:zoobank.org:pub:C57CB315-F15F-4D98-868A-EFEA22BC64A3
DOI	https://doi.org/10.5281/zenodo.13936743
persistent identifier	https://treatment.plazi.org/id/7FA87DFC-55AB-45B2-AD05-A2EA64530D90
taxon LSID	lsid:zoobank.org:act:7FA87DFC-55AB-45B2-AD05-A2EA64530D90
treatment provided by	ZooKeys by Pensoft
scientific name	Argopistes tsoui
status	sp. nov.

Treatment

Argopistes tsoui sp. nov.

Figs 11 C, D View Figure 11 , 13 View Figure 13 , 14 A, B View Figure 14

Type material examined.

Holotype • ♂ ( TARI). Taiwan. Hsinchu: Tahunshan (大混山), 24. II. 2009, leg. S. - F. Yu. • Paratypes • 1 ♂, 1 ♀ ( TARI), same as holotype ; • 1 ♀ ( TARI), same but with “ 8. IX. 2009 ” ; Ilan: • 3 ♂, 3 ♀ ( TARI), Fushan (福山) Chihwuyan (植物園 = Botanic Park ), 15. II. 2009, leg. M. - H. Tsou ; • 4 ♂, 6 ♀ ( TARI), same locality, 8. VI. 2023, leg. S. - S. Lu ; • 1 ♂ ( TAFI), same but with “ 27. XI. 2023 ” ; • 1 ♀ ( TAFI), same but with “ 28. XI. 2023 ” ; • 1 ♂, 1 ♀ ( TAFI), same but with “ 29. XI. 2023 ” ; • 1 ♂, 1 ♀ ( TARI), same but with “ 5. XII. 2023 ” ; • 1 ♀ ( TARI), same but with “ 7. XII. 2023 ” ; • 1 ♀ ( TARI), same but with “ 18. XII. 2023 ” ; • 1 ♂ ( TARI), same but with “ 11. I. 2024 ” ; • 1 ♂ ( TARI), same but with “ 8. III. 2024 ” ; • 4 ♂, 3 ♀ ( TARI), same but with “ 7. V. 2024 ” ; Keelung: • 1 ♂, 1 ♀ ( TARI), Hungtanshan (紅淡山), 10. V. 2008, leg. M. - H. Tsou ; Pingtung: • 1 ♀ ( TARI), Lilungshan (里龍山), 5. XI. 2009, leg. M. - H. Tsou ; • 1 ♀ ( TARI), Tahanshan (大漢山), 22. I. 2009, leg. S. - F. Yu ; • 1 ♀ ( TARI), same locality, 20. VIII. 2022, leg. Y. - T. Chung ; Taoyuan: • 2 ♂ ( TARI), Tungyanshan (東眼山), 8. VII. 2007, leg. M. - H. Tsou ; • 1 ♀ ( TARI), Yongfu (永福), 24. III. 2014, leg. H. Lee.

Diagnosis.

Adults of A. tsoui sp. nov. are similar to those of A. biplagiatus with reddish-brown elytra with wide black lateral margins, but differ from A. biplagiatus by the reddish-brown pronotum with wide black lateral margins (entirely black pronotum in A. biplagiatus ). Diagnostic genitalic characters include pointed apex of aedeagus similar (Fig. 13 C View Figure 13 ) to that of A. biplagiatus (Fig. 3 C View Figure 3 ) but relatively narrower in lateral view (Fig. 13 D View Figure 13 ) (relatively wider (Fig. 3 D View Figure 3 ) in A. biplagiatus ), longer, longitudinal paired sclerites of tectum (Fig. 13 C View Figure 13 ) (short, curved paired sclerites of tectum (Fig. 3 C View Figure 3 ) in A. biplagiatus ), anterior opening from apical 1 / 10 to middle (Fig. 13 C View Figure 13 ) (anterior opening from apex to apical 3 / 10 (Fig. 3 C View Figure 3 ) in A. biplagiatus ); triangular gonocoxae similar to those of A. rufus but expanding inwardly at basal 1 / 3 (Fig. 13 G View Figure 13 ) (expanding outward at basal 1 / 3 (Fig. 6 G View Figure 6 ) in A. rufus ); dense setae along apical margin of abdominal ventrite VIII similar to those of A. biplagiatus but much denser and shorter (Fig. 13 C View Figure 13 ) (less denser and longer setae on apical margin of abdominal ventrite VIII (Fig. 3 E View Figure 3 ) in A. biplagiatus ).

Description.

Length 3.9–4.3 mm, width 3.2–3.5 mm. Color (Fig. 11 C – E View Figure 11 ) reddish brown, sides of pronotum and elytra darker, tarsi and antennae yellow. Pronotum broad, convex, lateral margin narrowly explanate; 2.2 × wider than long, disc with dense coarse punctures; lateral margin rounded, anterior margin strongly concave, posterior margin moderately convex. Elytra broadly oval, 1.0–1.1 × longer than wide, disc with dense, confused, coarse punctures.

Male. Antenna filiform (Fig. 13 A View Figure 13 ), antennomere I much longer than others, approximate ratios of length of antennomeres I – XI 1.0: 0.4: 0.3: 0.4: 0.4: 0.4: 0.4: 0.4: 0.4: 0.4: 0.6; approximate ratios of length to width of antennomeres I – XI 4.7: 2.1: 2.2: 2.4: 2.0: 2.0: 1.9: 1.9: 1.9: 1.7: 2.7. Aedeagus (Fig. 13 B, C View Figure 13 ) strongly narrowed from apical 1 / 5 to apex, apex pointed; anterior opening small, ~ 0.35 as long as aedeagus, from apical 1 / 10 to middle; tectum composed of one pair of sclerotized processes with bifurcate apices, outer apex hooked, large, ~ 1.1 as long as anterior opening; narrow and slightly curved in lateral view; endophallic sclerite laterally flattened, with small process near apex, and with basal processes membranous.

Female. Antenna (Fig. 13 B View Figure 13 ) similar to males, ratios of length of antennomeres I – XI 1.0: 0.4: 0.3: 0.4: 0.4: 0.3: 0.4: 0.4: 0.4: 0.4: 0.5; ratios of length to width of antennomeres III – XI 4.1: 2.2: 2.4: 2.4: 2.2: 1.9: 2.1: 2.0: 1.9: 1.8: 2.9. Ventrite VIII (Fig. 13 E View Figure 13 ) membranous, only apical margin sclerotized, T-shaped, with dense short setae along apical margin, spiculum long. Spermathecal receptaculum (Fig. 13 F View Figure 13 ) longer than pump, moderately swollen, curved in lateral view; pump emarginate at inner side of base; spermathecal duct with elongate basal part, ramus rounded. Gonocoxae (Fig. 13 G View Figure 13 ) wide and separated, base membranous, each gonocoxa asymmetric, apically narrowed from apical 1 / 3, with dense long setae along apical areas.

Host plant.

Oleaceae : Osmanthus heterophyllus (Fig. 13 A, B View Figure 13 ), O. kaoi (T. S. Liu & J. C. Liao) S. Y. Lu , O. enervius Masam. & T. Mori , O. fragrans .

Biology.

This species seems to be univoltine. The larvae were found only during late March.

Etymology.

This new species is named for Mei-Hua Tsou (曹美華), the first person to collect specimens.

Distribution.

This new species is widespread in lowlands of Taiwan (Fig. 5 View Figure 5 ).