Doryscus chujoi Takizawa, 1978

Lee, Chi-Feng, 2017, Revision of the genus Doryscus Jacoby (Coleoptera: Chrysomelidae: Galerucinae), Zootaxa 4269 (1), pp. 1-43: 4-7

publication ID

https://doi.org/10.11646/zootaxa.4269.1.1

publication LSID

lsid:zoobank.org:pub:2AFC0D53-B439-4BBB-BC22-A0C90C08D65D

persistent identifier

http://treatment.plazi.org/id/0A03A20C-FF90-FFB1-FF24-FF6C53F4EDAA

treatment provided by

Plazi

scientific name

Doryscus chujoi Takizawa, 1978
status

 

Doryscus chujoi Takizawa, 1978 

( Figs 1View FIGURE 1 A –1D, 2)

Doryscus testaceus: Chûjô, 1962: 21  ; Kimoto, 1969: 57. Misidentifications

Doryscus chujoi Takizawa, 1978: 130  ; Kimoto, 1991: 119 (as synonym of Doryscus varians  ); Beenen, 2010: 474 (as synonym of Doryscus testaceus  ).

Doryscus varians: Kimoto 1991: 119  ; Kimoto & Chu, 1996: 86; Kimoto & Takizawa, 1997: 388.

Type. Paratype: 1♀ (SEHU), labeled: “Chitou (ỴĂ) / Nantou Taiwan / 12–13.VII.1977 / H. Takizawa [p, w] // 6– 7-VII-1975 / Chushan H. [h, on back of label] // Paratype [h, red letters] / Doryscus chujoi  / Takizawa [h] 197 [p] 7.2 [h] / Det. H. Takizawa [p, w] // Paratype [h, red letters, on back of label]”. The holotype and another paratype were supposed to be deposited at the SEHU but could not be found (Masahiro Ohara, personal communication, 17.V.2016).

Additional specimens (n= 181) LAOS. Houa Phan Prov.: 2♂♂ ( NHMB), Ban Saluei + Phou Pane Mt. , 20°12–13.5’ N 103°59.5’  –104°01’E, 1340–1870 m, 15.IV.–15.V.2008, leg. Lao collectors; 3♂♂, 4♀♀ ( NHMB), Phou Pane Mt. , 20°13’09–19” N 103°59’54”  –104°00’03”E, 1480–1550 m, 1–16.VI.2009, leg. Z. Kraus; 1♀ ( NHMB), same locality, 17.V.–3.VI.2007, leg. V. Kubáň  ; TAIWAN. Chiayi: 2♂♂, 1♀ ( TARI), Alishan (ȐmƜ), 27.VI.2010, leg. U. Ong  ; 1♂ ( TARI), Fenchihu ( Ḃďã ), 25.V.2013, leg. W.- C. Liao; Hsinchu  : 1♂ ( SEHU), Paoshan (ṖƜ), 20.V.1975, leg. K. Akiyama  ; 1♂ ( TARI), Talu trail (ϮÊIJẘ), 17.V.2008, leg. Y.- L. Lin; Hualien  : 1♀ ( TARI), Hualuhsi (ẸÖỴ), 25.IX.2010, leg. W.- P. Chan; Ilan  : 1♂ ( TARI), Fushan Botanical Park (DZ ƜüLj ḋ), 22.V.2008, leg. S.- F. Yu  ; 1♀ ( TARI), same locality, 13.IV.2011, leg. C.- F. Lee; Kaohsiung  : 1♀ ( EUMJ), Erhchituan (ĹDzḏ), 7.IV.1976, leg. K. Ushijima  ; 1♀ ( TARI), same locality, 21.VI.2010, leg. U. Ong  ; 1♂, 3♀♀ ( TARI), same locality, 8.III.2013, leg. B.- X. Guo  ; 1♀ ( TARI), same locality, 1.IV.2015, leg. B.- X. Guo  ; 3♀♀ ( BMNH), Jongjhihguan (ϕŽḆ), 12.VIII.2008, leg. H. Mendel, M. V. L. Barclay & L. C. Shih  ; 1♂, 1♀ ( SEHU), Liukei ( Āǿ ), 29.IV.–8.V.1982, leg. H. Takizawa  ; 2♂♂ ( SEHU), Nanfanshan (ĦṚƜ), 28.IV.1981, leg. S. Tsuyuki  ; 2♂♂ ( SEHU), Tengchih (Dḃ), 29.III.2001, leg. H. Mizusawa  ; 1♂ ( TARI), same locality, 19.XI.2008, leg. C.- T. Yao  ; 1♂, 1♀ ( TARI), same locality, 26.V.2009, leg. C.- F. Lee  ; 1♂ ( TARI), same locality, 4.VII.2011, leg. M.- H. Tsou  ; 2♀♀ ( TARI), same locality, 21.VII.2012, leg. J.- C. Chen  ; 1♀ ( TARI), same locality, 20.III.2013, leg. B.- X. Guo  ; 1♂, 2♀♀ ( TARI), same locality, 29.V.2013, leg. B.- X. Guo  ; 7♂♂, 7♀♀ ( TARI), same locality, 10.VIII.2013, leg. W.- C. Liao  ; 1♂ ( TARI), same locality, 27.IX.2013, leg. W.- C. Liao  ; 1♀ ( TARI), same locality, 23.VIII.2014, leg. W.- C. Liao  ; 2♀♀ ( TARI), same locality, 17.X.2015, W.- C. Liao  ; 1♂ ( TARI), Tona trail (șṁIJ ẘ), 25.II.2013, leg. Y.- T. Chung  ; 1♂ ( SEHU), Wukongshan ( BŘƜ), 23.III.1995, leg. H. Takizawa  ; 5♀♀ ( SEHU), same locality, 2.V.1996, leg. H. Takizawa  ; 1♂ ( TARI), same locality, 23.I.2009, leg. M.- H. Tsou; Natou  : 1♂ ( TARI), Chingching (ffidz), 6.IV.2010, leg. Y.- T. Wang  ; 1♀ ( TARI), Fenghuangshan (ṚĿƜ), 10.V.2010, leg. Y.- T. Wang  ; 1♀ ( TARI), same locality, 10.VIII.2011, leg. M.- H. Tsou  ; 1♂ ( TARI), Hsitou (ỴĂ), 15.VI.2011, leg. C.- F. Lee  ; 1♂ ( SEHU), Jiuyuehtan ( Hqfi ), 30.VI.1978, leg. H. Akiyama  ; 1♂ ( SEHU), Kuantoshan ( ḆŊƜ), 17.V.1996, leg. S. Tsuyuki  ; 1♂ ( SEHU), Lienhwachi (ỄẸŤ), 15.III.1980, leg. T. Niisato  ; 1♂, 2♀♀ ( SEHU), Lushan (ŔƜ), 5.V.1978, leg. Y. Komiya  ; 2♀♀ ( BMNH), same locality, 8.VIII.2008, leg. M. V. L. Barclay & H. Mendel  ; 1 ♁ ( TARI), Meifeng (aeệ), 2–4.VI.1980, leg. L.Y. Chou & C.C. Chen  ; 1♂, 1♀ ( TARI), same locality, 8.VI.1980, leg. K.S. Lin & B.H. Chen  ; 6♀♀ ( TARI), same locality, 24–26.VI.1981, leg. K.S. Lin & W.S. Tang  ; 1♂, 2♀♀ ( TARI), same locality, 19.VI.2010, leg. C.- F. Lee  ; 1♂ ( EUMJ), Nanshanchi (ĦƜỴ), 25.III.1977, leg. Y. Notsu  ; 1♀ ( SEHU) same locality, 30.IV.1977, leg. Y. Komiya  ; 1♂ ( SEHU), same locality, 7.V.1977, leg. Y. Komiya  ; 1♀ ( SEHU), same locality, 7.V.1978, leg. M. Ito  ; 1♂ ( EUMJ), same locality, 29.V.1981, leg. K. Sasagawa  ; 1♂, 1♀ ( SEHU), same locality, 31.VII.1985, leg. H. Takkizawa  ; 1♀ ( TARI), same locality, 7.IV.2010, leg. Y.- T. Wang  ; 1♂ ( TARI), same locality, 27.IV.2010, leg. C.- F. Lee  ; 1♀ ( TARI), Tatachia ( ḎḎAE), 16.V.2010, leg. M.- H. Tsou  ; 1♂, same locality, 17.V.2010, leg. C.- F. Lee  ; 2♂♂, 1♀ ( TARI), same locality, 9.VI.2010, leg. C.- F. Lee  ; 1♀ ( TARI), same locality, 9.V.2011, leg. M.- H. Tsou  ; 1♂, 2♀♀ ( SEHU), Tongpo (wů), 16–18.VII.1995, leg. H. Takizawa  ; 3♀♀ ( TARI), same locality (= Tungpu ), 28.IV.–2.V.1981, leg. T. Lin & C.J. Lee  ; 1♂ ( TARI), same locality, 23–27.VII.1984, leg. K.C. Chou & C.H. Yang  ; 2♂♂ ( SEHU), Tsuifeng ( Ḛệ ), 11.VII.1983, leg. H. Takizawa  ; 1♀ ( EUMJ), Tsuifeng (Ḛệ)- Sungkang (ḲḢ), 3.VI.1981, leg. K. Sasagawa  ; 1♂, 1♀ ( SEHU), Wushe (ẔË), 12. V.1977, leg. Y. Komiya  ; 3♂♂, 6♀♀ ( SEHU), same locality, 4.V.1978, leg. T. Niisato  ; 1♂, 2♀♀ ( SEHU), same locality, 4.V.1978, leg. M. Ito; Pingtung  : 1♂ ( TARI), Jinshuiying (ª‡º), 17.IX.2010, leg. J.- C. Chen  ; 1♂ ( TARI), Peitawushan ( ẌϮỂƜ), 11.IV.2010, leg. J.- C. Chen  ; 1♂ ( TARI), same locality, 22.IX.2012, leg. J.- C. Chen  ; 1♂ ( TARI), Shouka (⁂+), 25.II.2009, leg. C.- F. Lee  ; 1♀ ( TARI), same locality, 14.II.2010, leg. M.- H. Tsou  ; 1♀ ( TARI), Tahanshan (ϮÃƜ), 28.IV.2009, leg. M.- L. Jeng  ; 3♀♀ ( TARI), same locality, 21.X.2011, leg. J.- C. Chen  ; 1♀ ( TARI), same locality, 19.VII.2012, leg. C.- F. Lee  ; 1♀ ( TARI), same locality, 22.VII.2012, leg. Y.- T. Chung  ; 1♀ ( TARI), same locality, 1.X.2012, leg. J.- C. Chen  ; 1♀ ( TARI), same locality, 29.VI.2013, leg. B.- X. Guo  ; 1♂, 4♀♀ ( TARI), same locality, 11.VIII.2013, leg. B.- X. Guo  ; 1♀ ( TARI), same locality, 6.VI.2014, leg. Y.- T. Chung; Taichung  : 3♀♀ ( TARI), Kukuan (ỖḆ), 19.III.2014, leg. C.- F. Lee  ; 1♀ ( TARI), Wushihkeng (ŖƂ Ệ), 21.III.2013, leg. C.- F. Lee; Tainan  : 1♂ ( TARI), Meiling (aeö), 24.IV.2013, leg. B.- X. Guo  ; 1♀ ( TARI), same locality, 4.X.2015, leg. U. Ong; Taitung  : 1♀ ( TARI), Hsiangyang (ȒḄ), 23.VI.2010, leg. M.- H. Tsou  ; 1♀ ( TARI), same locality, 14.VIII.2012, leg. C.- F. Lee  ; 1♂, 2♀♀ ( TARI), Liyuan (ḛḋ), 23.VI.2010, leg. M.- H. Tsou  ; 2♂♂ ( TARI), same locality, 8.VII.2010, leg. J.- C. Chen  ; 1♂ ( TARI), same locality, 19.VI.2013, leg. C.- F. Lee  ; 1♂ ( TARI), same locality, 19.VI.2013, leg. Y.- T. Chung  ; 1♀ ( TARI), Motien ( ṂX), 23.V.2011, leg. C.- F. Lee  ; 1♂, 1♀ ( TARI), same locality, 19.VI.2011, leg. C.- F. Lee  ; 3♀♀ ( TARI), Wulu trail (ẔÊIJẘ), 24.VI.2010, leg. M.- H. Tsou; Taoyuan  : 1♂, 1♀ ( TARI), Hsiaowulai (ṬŖẎ), 10.X.2009, leg. M.- H. Tsou; THALAND  . 1♂, 1♀ ( SEHU), near Meo Village , 13–16.VI.1979, leg. W. Suzuki; Chiang Rai Prov.  : 1♂, 2♀♀ ( NHMB), 7 km S of Doi Chang , 1600± 50 m, 19°48’N 99°34’E, 16–18.V.2009, leg. L. Dembický; VIETNAM. Ninh Binh Prov.GoogleMaps  : 1♀ ( NME), 90km SW Hanoi, Cucu Phuoung N. P., primat rescue centre, 25.IV.2012, 20°14’24”N 105°42’53”E, leg. A. WeigelGoogleMaps  .

Redescription. Length 3.8–5.8 mm, width 1.6–2.3 mm. Generally yellow or yellowish brown ( Fig. 1View FIGURE 1 A). First antennomere not modified in males ( Fig. 2View FIGURE 2 A), length ratios of antennomeres I –XI 1.0: 0.4: 0.6: 0.9: 0.9: 0.9: 0.9: 0.9: 0.9: 0.8: 0.9, length to width ratios of antennomeres I –XI 3.5: 1.7: 2.5: 3.8: 3.8: 3.8: 3.8: 4.0: 3.8: 3.6: 3.9; first antennomere in female more slender ( Fig. 2View FIGURE 2 B), length ratios of antennomeres I –XI 1.0: 0.4: 0.6: 0.7: 0.7: 0.8: 0.8: 0.8: 0.8: 0.7: 0.9, length to width ratios of antennomeres I –XI 4.2: 2.1: 2.9: 3.6: 3.4: 3.6: 3.5: 3.7: 3.7: 3.3: 4.2. Elytra 1.8 x longer than wide; surface with erect setae brown, dense, and short; and fine punctures. Apical margin of last abdominal ventrite in male almost straight ( Fig. 2View FIGURE 2 G), widely rounded in female ( Fig. 2View FIGURE 2 H). Penis ( Figs 2View FIGURE 2 C –2D) extremely slender, 8.0 x longer than wide, gradually narrowed towards apex; apex of dorsal surface with shallow notch; apex of ventral surface widely rounded; weakly curved in lateral view, apex with notch between dorsal and ventral surface; ventral surface with median longitudinal groove. Endophallic spiculae elongate, about 0.6 x as long as penis, median spiculae deeply bifurcate, elongate, basally conjoined and narrowed; two pairs of apical endophallic spiculae extremely slender, apically tapering and weakly and apically curved; two pairs of lateral spiculae at basal 1/3 of median endophallic spiculae short and moderately curved; one pair of ventral endophallic spiculae long, basally joined, apices bifurcate. Gonocoxae ( Fig. 2View FIGURE 2 E) slender, 8.1 x longer than wide, sides narrowed at apical 1/10; apices obliquely truncate; inner margins approximate from apex to midpoint, apex with nine setae; slender from midpoint to base but abruptly widened at base. Ventrite VIII ( Fig. 2View FIGURE 2 F) well sclerotized; spiculum elongate; apex square, apical margin truncate, with several short setae; disc with several long setae at sides. Receptacle of spermatheca ( Fig. 2View FIGURE 2 I) as wide as pump, narrowly separated from pump; pump strongly curved, apically tapering; proximal spermathecal duct as wide as receptacle, shallowly projecting into receptaculum.

Variability. In Taiwanese populations the punctures on the elytra are more coarse and some males display variable color patterns: the elytra of some have one longitudinal, wide, dark stripe ( Fig. 1View FIGURE 1 B); elytra of some are darkened; bodies of some are totally blackish brown except the yellowish brown pronotum ( Fig. 1View FIGURE 1 C), and bodies of others are totally black ( Fig. 1View FIGURE 1 D).

Differential diagnosis. Doryscus chujoi Kimoto  adults are similar to those of D. varians Gressitt & Kimoto  with yellowish brown bodies and dense erect setae on the elytra, but D. chujoi  can be distinguished from D. varians  by shorter erect setae on the elytra.

Remarks. Although Taiwanese specimens identified by Kimoto (1969) were not studied, they should belong to Doryscus chujoi  without doubt.

Distribution. Laos, Taiwan, Thailand, Vietnam.

NHMB

Naturhistorisches Museum, Basel

TARI

Taiwan Agricultural Research Institute

EUMJ

Ehime University

BŘƜ

Alfred-Wegener-Institut f�r Polar- und Meeresforschung

ḆŊƜ

B�ndner Naturmuseum

NME

Sammlung des Naturkundemseum Erfurt

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Doryscus

Loc

Doryscus chujoi Takizawa, 1978

Lee, Chi-Feng 2017
2017
Loc

Doryscus varians:

Kimoto 1997: 388
Kimoto 1996: 86
Kimoto 1991: 119
1996
Loc

Doryscus chujoi

Beenen 2010: 474
Kimoto 1991: 119
Takizawa 1978: 130
1991
Loc

Doryscus testaceus: Chûjô, 1962 : 21

Kimoto 1969: 57
Chujo 1962: 21
1969