Theopea bicolor Kimoto, 1989

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/804F0C62-E90D-5A52-857B-2D8019323DBC
treatment provided by	ZooKeys by Pensoft
scientific name	Theopea bicolor Kimoto, 1989
status

Treatment

Theopea bicolor Kimoto, 1989 Figs 1A-C View Figure 1 , 2 View Figure 2

Theopea bicolor Kimoto, 1989: 199 (Vietnam); Mohamedsaid & Costant, 2007 (Thailand).

Type.

Holotype ♂ (BPBM): "VIET NAM. 20 km / N. of Pleiku / 650m. 9.V.1960 [p, w] // L. W. Quate / Collector [p, w] // Theopea / bicolor / n. sp. [h, w] // HOLOTYPE [p, r]".

Other material.

THAILAND. Chiang Mai: 3♂♂, 2♀♀ (SEHU), Chiang Dao Valley, 2.V.1980, leg. Y. Komiya; 5♀♀ (SEHU), same locality, 24.V.1983, leg. Y. Komiya; 2♀♀ (SEHU), same but with "leg. H. Akiyama; 3♀♀ (SEHU), same locality, 30.V.1983, leg. Y. Komiya; 1♀ (SEHU), same but with "leg. K. Ikeda"; 1♀ (SEHU), same but with "H. Akiyama"; 4♀♀ (NHMB), same locality, 10-16.V.1991, leg. V. Kubáň; 1♂, 7♀♀ (1♂, 6♀♀: NHMB; 1♀: MSNG), same locality, 17-24.V.1991, leg. V. Kubáň; 4♂♂ (SEHU), Doi Pui, 28.IV.-1.V.1980, leg. Y. Komiya; 1♀ (NMPC), Doi Suthep, 19-22.-IV.1991, leg. S. Bílý; 1♂ (JBCB), Doi Suthep to Doi Pui, 18°49N 99°00E, 19.-23.IV.1991, leg. L. Dembický; 1♂ (MSNG), Palong, 19°55'N 99°06'E, 750 m, 26-28.V.1991, leg. V. Kubáň; Kanchanaburi: 1♂, 4♀♀ (SEHU), Ban Nong Bang, 15.V.1985, leg. Y. Komiya; Mae Hong Son: 6♂♂ (JBCB), Ban Huai Po, 19°19N 97°59E, 1600-2000 m, 9.-16.V.1991, leg. L. Dembický; 1♀ (NHMUK), same locality, 9-16.V.1992, leg. J. Horák; 33♂♂, 2♀♀ (24♂♂, 2♀♀: NHMUK; 9♂♂: JBCB), Ban Si Lang, 1200 m, 1-8.V.1992, leg. J. Horák; 1♀ (JBCB), Kiwlom-pass near Soppong, 19°26N 98°19E, 1400 m, 23.VI.-2.VII.2002, leg. R. and H. Fouqué; 1♀ (JBCB), SE of Soppong, 19°27N 98°20E, 1500 m, 23.-27.V.1999, leg. M. Řiha; 3♂♂, 1♀ (NHMB), Soppong-Pai, 1800 m, leg. Pacholátko; Nan: 1♂ (JBCB), Ban Huay Kon env., 27.V.-10.VI.2002, leg. P. Průdek, M. Obořil; 1♂ (NHMUK), Doi Phuka N.P., V.2000, leg. local collector; 1♀ (SEHU), Mae Kamme Forest, 17.V.1985, leg. Y. Komiya; 1♂ (SEHU), Nan Watershed Res. Station, 17.V.1985, leg. Y. Komiya; 1♂ (SEHU), Wiang Sa, 15.V.1993, leg. S. Ohmomo; 2♀♀ (SEHU), Wieng Ko Sai N.P., 18.V.1985, leg. Y. Komiya; Prachinburi: 1♀ (HNHM), Sakaerat Ecol. Research Institute, 4.VI.2001, leg. E. Harváth and G. Szirákl; VIETNAM. Daklak: 1♂ (MSNG), 12 km SW of Buon Ma Thout, Lake Eakao, 400 m, 26-27.IV.1986, leg. L. Medvedev.

Redescription.

Length 5.8-6.2 mm, width 1.9-2.2 mm. Body color (Fig. 1A-C View Figure 1 ) dark brown or blackish brown except elytra reddish brown. Antennae filiform in males, but antennomeres VI-VIII slightly swollen (Fig. 2A View Figure 2 ), length ratios of antennomeres I-XI 1.0: 0.3: 0.8: 1.1: 1.2: 1.2: 1.2: 1.1: 1.1: 1.0: 1.2, length to width ratios of antennomeres I-XI 2.8: 1.2: 2.5: 3.3: 3.6: 3.4: 3.4: 3.2: 3.5: 3.4: 4.1; filiform in females (Fig. 2B View Figure 2 ), length ratios of antennomeres I-XI 1.0: 0.3: 0.8: 1.0: 1.0: 0.9: 0.9: 0.9: 0.9: 0.8: 0.9, length to width ratios of antennomeres I-XI 3.0: 1.4: 3.1: 3.5: 3.5: 3.2: 3.4: 3.4: 3.6: 3.4: 3.7. Elytra elongate, parallel-sided, 2.0 × 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. 2C-E View Figure 2 ) slender, 6.5 × longer than wide; sides widest at middle, gradually narrowed towards basal 1/4, gradually and apically narrowed towards apical 1/5, parallel between apical 1/5 and 1/12, apex with shallow notch; tectum well sclerotized, basally broadened, as broad as aedeagus, with hollow area behind base of tectum; moderately curved in lateral view; ventral surface with deep notch from near apex, apically extending into basal opening, more approximate at apical 1/5; triangular sclerites small; internal sac with one median, elongate sclerite, 0.7 × as long as aedeagus, apically tapering from basal 1/3, apex acute, connected with 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. 2G View Figure 2 ) elongate, widest at apical 1/6, both gonocoxae joined 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. 2F View Figure 2 ) 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. 2H View Figure 2 ) strongly swollen; pump slender and strongly curved; proximal spermathecal duct deeply inserted into receptacle, narrow and short.

Remarks.

Populations from Laos and southwest China were misidentified. They represent Theopea bicoloroides sp. nov. (see below).

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 (Fig. 1G-I View Figure 1 ) by the dark brown or blackish brown head, prothorax, and scutellum, and indistinct ridges in the elytra. Besides, males of T. bicolor and T. bicoloroides sp. nov. possess a median elongate sclerite internally in the aedeagus that is 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 , which lacks such hair-like setae (Fig. 4C, D View Figure 4 ). Theopea bicolor differs from T. bicoloroides sp. nov. by the relatively slender antennae (Fig. 2A View Figure 2 ) in males (length to width ratios of antennomeres V-X more than 3.0 in T. bicolor , relatively broader antenna (Fig. 3A View Figure 3 ), less than 3.0 in T. bicoloroides sp. nov.), the narrowly rounded apex of the ventral surface of the aedeagus (Fig. 2E View Figure 2 ) (broadly rounded apex of aedeagus in T. bicoloroides sp. nov. (Fig. 3E View Figure 3 )), endophallic sclerite broad and without longitudinal groove in lateral view (Fig. 2D View Figure 2 ) (dorso-ventrally flattened and with longitudinal groove in lateral view in T. bicoloroides sp. nov. (Fig. 3D View Figure 3 )), and slender notch at apex of gonocoxae (Fig. 2G View Figure 2 ) (broad notch at apex of gonocoxae in T. bicoloroides sp. nov. (Fig. 3G View Figure 3 )).