Taiwanoshaira taipingshanensis, Lee & Beenen, 2020

Lee, Chi-Feng & Beenen, Ron, 2020, Taiwanoshaira Lee & Beenen, a new genus and first record of moss-inhabiting Galerucinae sensu stricto (Coleoptera, Chrysomelidae) from Taiwan, ZooKeys 944, pp. 129-146 : 129

publication ID	https://dx.doi.org/10.3897/zookeys.944.53099
publication LSID	lsid:zoobank.org:pub:F00B2CAF-5D95-48F5-9C58-0DD95AAC9B8B
persistent identifier	https://treatment.plazi.org/id/1AE3EA77-43D4-420C-A3F3-E92F3CA65A9B
taxon LSID	lsid:zoobank.org:act:1AE3EA77-43D4-420C-A3F3-E92F3CA65A9B
treatment provided by	ZooKeys by Pensoft
scientific name	Taiwanoshaira taipingshanensis
status	sp. nov.

Treatment

Taiwanoshaira taipingshanensis sp. nov. Figures 6A-C View Figure 6 , 7 View Figure 7

Types

(N = 77). Holotype ♂ (TARI): Taiwan. Ilan: Taipingshan (太平山), 5.VIII.2015, leg. Y.-T. Chung. Paratypes. 5♂♂, 15♀♀ (TARI), same as holotype; 10♂♂, 16♀♀ (TARI), Yuanyanghu (鴛鴦湖), 19.VIII.2010, leg. S.-S. Li; 4♂♂, 5♀♀ (TARI), same locality, 22.VIII.2011, leg. C.-F. Lee; 2♂♂, 8♀♀ (2♀♀: TARI; 2♂♂, 2♀♀: RBCN), same but with "leg. M.-H. Tsou"; 5♂♂, 6♀♀ (TARI), same but with "leg. H. Lee".

Description.

Length 4.0-5.7 mm, width 2.6-3.4 mm. General color dark brown or blackish-brown (Fig. 6A-C View Figure 6 ). Antenna (Fig. 7A View Figure 7 ) filiform in males, ratios of lengths of antennomeres I to XI 1.0: 0.5: 0.6: 0.7: 0.7: 0.7: 0.7: 0.7: 0.6: 0.7: 0.8; ratios of lengths to widths from antennomeres I to XI 3.0: 2.0: 2.2: 3.0: 3.2: 3.2: 3.3: 3.5: 3.0: 3.1: 3.4; similar in females, ratio of lengths of antennomeres I to XI (Fig. 7B View Figure 7 ) 1.0: 0.4: 0.5: 0.8: 0.7: 0.7: 0.7: 0.7: 0.7: 0.7: 0.8; ratios of lengths to widths from antennomeres I to XI 3.4: 2.3: 2.3: 3.9: 3.7: 3.7: 4.0: 3.7: 3.4: 3.5: 4.2. Pronotum 1.61-1.63 times wider than long; lateral margins slightly rounded; disc with fine punctures bearing tiny setae. Procoxal cavities almost closed. Elytra 1.11-1.20 times longer than wide; disc with dense, coarse punctures and longitudinal ridges not covered with punctures; apices tapering in both sexes. Tarsomeres I of front legs slightly swollen in males, not modified in females. Penis (Fig. 7C-E View Figure 7 ) wide, about 5.5 times longer than wide; parallel sided and strongly curved in lateral view, apex narrowly rounded, base with shallow median notch; tectum broad from apical 1/6 to middle, apex truncate; ventral surface with large opening. Endophallic spiculae complex (Fig. 7F, G View Figure 7 ) with median endophallic spiculae slender, apically bifurcate, and straight in lateral view; with one pair of small sclerites near base. Gonocoxae (Fig. 7H, I View Figure 7 ) short; apex of each gonocoxa widely rounded, with eight to ten long setae along apical margin, basal margin irregular. Ventrite VIII (Fig. 7J, K View Figure 7 ) short and well sclerotized, with several short setae along apical margin, spiculum long. Spermathecal receptaculum (Fig. 7L View Figure 7 ) strongly swollen; pump extremely slender and curved; sclerotized spermathecal duct long.

Variation.

Female genitalic characters are variable among different localities. The apices of the gonocoxae are widely rounded in specimens from Taipingshan (太平山) (Fig. 7I View Figure 7 ) but tapering in those from Yuanyanhu (鴛鴦湖) (Fig. 7H View Figure 7 ). The apex of abdominal ventrite VIII is shorter in specimens from Taipingshan (Fig. 7K View Figure 7 ) than those from Yuanyanhu (Fig. 7J View Figure 7 ).

Diagnosis.

Taiwanoshaira taipingshanensis sp. nov. is easily separated from other congeners by the presence of longitudinal ridges on the elytra (Fig. 6A, C View Figure 6 ) (lacking longitudinal ridges in others (Figs 3A, C-D, F View Figure 3 ; 6D, F View Figure 6 )), almost closed procoxal cavities (Fig. 2A View Figure 2 ) (widely open procoxal cavities (Fig. 2B View Figure 2 ) in others), entirely black legs (Fig. 6A-C View Figure 6 ) (yellowish-brown legs with dark apices of femora and bases of tibiae in others (Figs 3 View Figure 3 , 6D-F View Figure 6 )), sexually dimorphic protarsi I (uniform protarsi I in both sexes of others), tapering elytral apices of both sexes (Fig. 6A-C View Figure 6 ) (tapering elytra apices in only males of others (Figs 3 View Figure 3 , 6D-F View Figure 6 )). In addition, most genitalic characters of this new species are diagnostic, including the extremely strongly curved penis (Fig. 7C-E View Figure 7 ) (moderately or slightly curved in others (Figs 4C, D View Figure 4 ; 8C, D View Figure 8 ), irregular base of gonocoxae (Fig. 7H, I View Figure 7 ) (narrowed base of gonocoxae in others (Figs 4E, F View Figure 4 ; 8M, N View Figure 8 )), and long sclerotized spermathecal duct (Fig. 7L View Figure 7 ) (short sclerotized spermathecal duct in others (Figs 4H View Figure 4 , 8Q View Figure 8 )).