Theopea bicoloroides, Lee & Bezděk, 2020

Lee, Chi-Feng & Bezdek, Jan, 2020, Revision of the Theopea genus group (Coleoptera, Chrysomelidae, Galerucinae), part III: Descriptions of two new genera and nine new species, ZooKeys 912, pp. 65-124 : 65

publication ID	https://dx.doi.org/10.3897/zookeys.912.47719
publication LSID	lsid:zoobank.org:pub:4F361E38-B268-4B70-944D-D6B6FCC66542
persistent identifier	https://treatment.plazi.org/id/93660DB1-59A6-4C78-A338-A546A6CA2717
taxon LSID	lsid:zoobank.org:act:93660DB1-59A6-4C78-A338-A546A6CA2717
treatment provided by	ZooKeys by Pensoft
scientific name	Theopea bicoloroides
status	sp. nov.

Treatment

Theopea bicoloroides sp. nov. Figs 1D-F View Figure 1 , 3 View Figure 3

Theopea bicolor Kimoto, 1989: 199 (part); Medvedev, 2000: 178 (Laos); Bezděk, 2012: 401 (China: Yunnan).

Types.

Holotype ♂ (NMPC), LOAS. 20 km NW Louang Namhta, 21°09.2'N 101°18.7'E, 800-1100 m, 5-11.V.1987, leg. M. Štrba and R. Hergovits; Paratypes. 1♂ (NMPC), same data as holotype; LAOS. Boli Kham Xai: 1♀ (RBCN), Ban Nok env., 18°08.7'N 104°28.1'E, Route no 8, 220 m, 9-14.V.1998, leg. E. Jendek, and O. Sausa; 1♂ (HNHM), Phou Khao Kouay NBCA, Tad Leuk Waterfall, 280 m, 11-12.IV.1998, leg. O. Merkl and G. Csorba (identified as Theopea bicolor by Medvedev (2000)); Hua Phan: 3♂♂, 6♀♀ (JBCB), 25km SE Vieng Xai (by road), Ban Kangpabong env., 20°19'N 104°25E, 14.-18.V.2001, leg. J. Bezděk; CHINA. Yunnan: 2♀♀ (TARI), Mohan (磨憨), 14.V.2016, leg. Y.-T. Wang.

Theopea bicolor : one paratype ♂ (ZSM), labeled: "Laos 1963 / Umgeb. Vanky [p, w] // Theopea / bicolor / n. sp. [h, w] // PARATYPE [p, b]".

Description.

Length 6.1-6.5 mm, width 2.3-2.5 mm. Body color (Fig. 1D-F View Figure 1 ) dark brown or blackish brown except elytra reddish brown. Antennae filiform in males, but antennomere VI-IX strongly swollen (Fig. 3A View Figure 3 ), length ratios of antennomeres I-XI 1.0: 0.3: 0.8: 1.0: 1.0: 1.1: 1.1: 1.1: 1.0: 0.9: 1.0, length to width ratios of antennomeres I-XI 2.8: 1.3: 2.6: 3.2: 3.2: 2.7: 2.7: 2.7: 2.7: 2.8: 3.4; more slender in females (Fig. 3B View Figure 3 ), length ratios of antennomeres I-XI 1.0: 0.3: 0.8: 0.9: 1.0: 0.9: 0.9: 0.9: 0.9: 0.8: 1.0, length to width ratios of antennomeres I-XI 3.0: 1.5: 2.9: 3.3: 3.1: 3.0: 3.3: 3.2: 3.4: 3.1: 3.5. Elytra elongate, parallel-sided, 1.9 × longer than wide; disc with dense, coarse punctures arranged into longitudinal rows, with one weak longitudinal ridge between two longitudinal rows of punctures, basally abbreviated. Tarsomeres I of front legs slightly swollen in males; subparallel in females. Aedeagus (Fig. 3C-E View Figure 3 ) slender, 6.4 × longer than wide; sides strongly narrowed at apical 1/4 in ventral view, apical margin truncate, with shallow notch; tectum well sclerotized, basally broadened, broader than aedeagus, with hollow area at base of tectum; slightly curved in lateral view; ventral surface with deep notch from near apex, apically extending into basal 2/5; triangular sclerites small; internal sac with one median, elongate sclerite, 0.6 × as long as aedeagus, dorso-ventrally flattened, apically tapering from basal 1/3, apex acute, connected by short broad sclerite at base, disc with dense, transverse rows of hair-like setae and with one pair of elongate, longitudinal rows of stout setae at sides. Gonocoxae (Fig. 3G View Figure 3 ) elongate, widest at apical 1/6, gonocoxae combined from basal 1/8 to apical 1/7; apices narrowly rounded, each gonocoxa with eight setae along lateral margin from apex to apical 1/6; with one pair of short lateral processes at basal 2/5. Ventrite VIII (Fig. 3F View Figure 3 ) elongate and well sclerotized; disc with several long setae at sides and near apical margin, and with dense, short setae along apical margin; spiculum extremely slender. Receptacle of spermatheca (Fig. 3H View Figure 3 ) strongly swollen; pump slender and strongly curved; proximal spermathecal duct deeply inserted into receptacle, narrow and long.

Diagnosis.

Theopea bicolor Kimoto, T. bicoloroides sp. nov., and T. mouhoti Baly are characterized by their reddish brown elytra. Theopea bicolor and T. bicoloroides sp. nov. (Fig. 1A-F View Figure 1 ) can be easily separately from T. mouhoti by the dark brown or blackish brown head, prothorax, and scutellum, and indistinct ridges on the elytra (Fig. 1G-I View Figure 1 ). In addition, males of T. bicolor and T. bicoloroides sp. nov. possess median elongate internal aedeagal sclerites that are covered with transverse rows of hair-like setae (Figs 2C, D View Figure 2 ; 3C, D View Figure 3 ). This differs from those of T. mouhoti that lack hair-like setae (Fig. 4C, D View Figure 4 ). Theopea bicoloroides sp. nov. differs from T. bicolor by the relatively broader antennae in males (Fig. 3A View Figure 3 ) (length to width ratios of antennomeres V-X less than 3.0 × in T. bicoloroides sp. nov. but more than 3.0 in T. bicolor (Fig. 2A View Figure 2 )), broadly rounded apex of the ventral surface of the aedeagus (Fig. 3E View Figure 3 ) (narrowly rounded apex of ventral surface of aedeagus in T. bicolor (Fig. 2E View Figure 2 )), endophallic sclerite dorso-ventrally flattened and with longitudinal groove in lateral view (Fig. 3D View Figure 3 ) (broad and lacking longitudinal groove in lateral view in T. bicolor (Fig. 2D View Figure 2 )); and a broad notch at the apex of the gonocoxae (Fig. 3G View Figure 3 ) (slender notch at apex of gonocoxae in T. bicolor (Fig. 2G View Figure 2 )).