Shairella aeneipennis Chûjô

Lee, Chi-Feng & Beenen, Ron, 2017, Revision of the genus Shairella Chûjô, 1962 (Coleoptera: Chrysomelidae: Galerucinae) from Taiwan, with descriptions of five new species, Zootaxa 4268 (4), pp. 489-507 : 492-494

Shairella aeneipennis Chûjô

( Fig. 2 )

Shairella aeneipennis Chûjô, 1962: 105 ; Wilcox, 1973: 443 (catalogue); Kimoto & Chu, 1996: 61 (catalogue); Kimoto & Takizawa, 1997: 388; Beenen, 2010: 487 (catalogue).

Khasia itorum Kimoto, 1984: 56 ; Kimoto & Chu, 1996: 61 (as synonym of Shairella aeneipennis ). Synonym confirmed.

Type locality. Chiayi County, Chushan (ṞƜ), 23°30’44”N, 120°49’22”E, 2400 m.

Types. Shairella aeneipennis . Holotype ♂ ( TARI): “ Iwai-yama (= Chushan, ṞƜ) / Mt. Arisan ( ȐHƜ) / Tainan-syu / FORMOSA / 6.viii.1940 / Col. K . ENDO [p, w] // Shairella / aeneipennis / CHÛJÔ [h] / DET. M. CHUJO [p, w] // HoLo / Type [p, w] (circle label, red letters but faded) // 2315 [p, w]”.

Khasia itorum . Holotype ♀ ( OMNH): “Mt. ALI ( ȐHƜ) / TAIWAN / 17.V.1981 / T. ITO [p, y] // Khasia / itoi / Kimoto , n. sp. [h, w] // HOLOTYPE [p, r]” . Paratypes: 2♂ ( KMNH, OMNH): “Mt. ALI / TAIWAN / 17.V.1981 / T. ITO [p, y] // Khasia / itoi / Kimoto, n. sp. [h, w] // PARATOPOTYPE [p, b] // PHOTO [p, r]” ; 1♂ ( KMNH): “Mt. ALI / TAIWAN / 18.V.1981 / N. ITO [p, y] // Khasia / itoi / Kimoto , n. sp. [h, w] // PARATYPE [p, b] // (blank) [w]”.

Additional specimens examined (n= 34). Chiayi: 6♂ , 3♀ (TARI, RBCN), Alishan (ȐHƜ), 17.V.2010, leg. M.-H. Tsou; 1♂, 1♀ ( TARI), Erhwanping (ΞΑ‼, near Alishan), 9.V.2011, leg. T.- H. Lee & M.- H. Tsou; Nantou : 1♂ (TARI), Hsitou (ĀḆ), 14.VI.2011, leg. T.-H. Lee; 1♂ (TARI), 24-31.VII.2008, leg. C.-S. Tung; Tatachia (Ṙ Ṙffi), 1♂, 5♀ ( TARI), same locality, 8.VI.2009, leg. C.- F. Lee ; 5♂, 4♀ ( TARI), same locality, 20.VII.2009, leg. C.- F. Lee, H. Lee & S.- F. Yu ; 1♀ ( TARI), same locality, 21.IX.2009, leg. C.- F. Lee ; 4♂, 1♀ ( TARI), same locality, 16.V.2010, leg. M.- H. Tsou ; 1♂ ( TARI), same locality, 9.VII.2014, leg. C.- F. Lee.

Males. Length 4.7–5.2 mm; width 2.9–3.1 mm. Antenna ( Fig. 2 A) long, filiform, about 1.2x longer than body, length ratios of antennomeres I–XI 1.0: 0.3: 0.7: 1.0: 0.9: 1.0: 1.0: 1.0: 1.0: 0.9: 0.9, length to width ratios of antennomeres I–XI 3.1: 1.5: 2.7: 3.4: 3.4: 4.2: 4.4: 4.2: 4.5: 4.3: 4.7. Elytra strongly widened apically; about 1.1x longer than wide; surface with sparse, fine punctures. Apical margin of last abdominal ventrite with two well developed incisions. Penis ( Figs 2 C–2D) elongate, about 5.8x longer than wide, parallel-sided, apex narrowly rounded, strongly curved in lateral view; endophallic sclerite short, about 0.5x as long as penis, slender and longitudinal, apex rounded, with dense, short hairs along lateral margin at apical 1/4, bifurcate at basal 1/4.

Females. Length 5.0– 5.2 mm, width 3.0– 3.1 mm. Antenna ( Fig. 2 B) long, filiform, about 1.1x longer than body, length ratios of antennomeres I–XI 1.0: 0.3: 0.7: 0.9: 0.8: 0.8: 0.8: 0.8: 0.9: 0.8: 0.9, length to width ratios of antennomeres I–XI 3.6: 1.4: 3.1: 4.1: 3.9: 4.2: 3.9: 4.3: 5.0: 4.7: 5.8. Elytra strongly widened apically; about 1.1x longer than wide; surface with sparse, fine punctures. Apical margin of last abdominal ventrite truncate. Gonocoxae ( Fig. 2 E) longitudinal and wide, 3.1x longer than wide, conjoined from base to middle, slightly narrowed at apical 1/3, apices rounded, each gonocoxa with eight or nine elongate setae. Ventrite VIII ( Fig. 2 F) with only apical area and spiculum sclerotized; with dense, elongate setae inside apical sclerotized area, apical margin rounded; spiculum elongate, wide. Receptacle of spermatheca ( Fig. 2 G) slender, as wide as pump, hardly separated from pump; pump wide, strongly curved, apex broadly rounded, apex with transverse and short appendix, size variable ( Fig. 2 H); proximal spermathecal duct hardly separated from receptacle, apically narrowed.

Differential diagnosis. Shairella aeneipennis is similar to S. guoi sp. nov. and S. motienensis sp. nov. by possessing fine punctures on the elytra; but this species differs others by the shorter endophallic sclerite of the penis ( Figs 2 C–2D) (longer endophallic sclerite in S. motiensis ( Figs 9 C–9D)), rounded apex of the endophallic sclerite (depressed apex of the endophallic slcerite in S. guoi sp. nov. ( Figs 8 C–8D) and pointed apex in S.

motiensis sp. nov.), and the narrowed apex of the penis (tapering apex from apical 1/ 6 in S. guoi sp. nov. and lanceolate apex in S. motienensis sp. nov.).

Remarks. The allotype of S. aenepennis is prooved to belong to another species (see S. tsoui sp. nov.). Host plant. Clinopodium laxiflorum var. taiwanianum Hsieh & Huang (Labiatae) . Distribution. Chiayi county: Alishan (ȐHƜ); Nantou county: Hsitou (ĀḆ) and Tatachia (ṘṘffi) ( Fig.

3A).

Figures

FIGURE 2. Diagnostic characters of Shairella aeneipennis Chûjô. 2 A. Antenna, male; 2 B. Antenna, female; 2 C. Penis, dorsal view; 2 D. Penis, lateral view; 2 E. Gonocoxae; 2 F. Abdominal ventrite VIII; 2 G. Spermatheca; 2 H. Apex of pump, dorsal view.

FIGURE 3. Distribution map of Shairella species and Clinopodium laxiflorum var. taiwanianum. 1 A. Solid line: 1000 m, broken line: 2000 m. Red spots: S. motienensis sp. nov.; blue spots: S. aeneipennis Chûjô; gray spots: S. tsoui sp. nov.; pink spot: S. cheni sp. nov.; green spot: S. chungi sp. nov.; yellow spot: S. guoi sp. nov.; 1 B. Clinopodium laxiflorum var. taiwanianum (after Hsieh & Huang 1999).

FIGURE 8. Diagnostic characters of Shairella guoi sp. nov. 8 A. Antenna, male; 8 B. Antenna, female; 8 C. Penis, dorsal view; 8 D. Penis, lateral view; 8 E. Gonocoxae; 8 F. Abdominal ventrite VIII; 8 G. Spermatheca; 8 H. Apex of pump, dorsal view; 8 I. Same, variation.

FIGURE 9. Diagnostic characters of Shairella motienensis sp. nov. 9 A. Antenna, male; 9 B. Antenna, female; 9 C. Penis, dorsal view; 9 D. Penis, lateral view; 9 E. Gonocoxae; 9 F. Abdominal ventrite VIII; 9 G. Apical margin of abdominal ventrite V; 9 H. Apex of pump, dorsal view; 9 I. Same, variation; 9 J. Same, variation; 9 K. Spermatheca.