Doryscus varians ( Gressitt & Kimoto, 1963 )

Lee, Chi-Feng, 2017, Revision of the genus Doryscus Jacoby (Coleoptera: Chrysomelidae: Galerucinae), Zootaxa 4269 (1), pp. 1-43: 14-18

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-FF9E-FFA6-FF24-FA1452F1E879

treatment provided by

Plazi

scientific name

Doryscus varians ( Gressitt & Kimoto, 1963 )
status

 

Doryscus varians ( Gressitt & Kimoto, 1963) 

( Figs 4View FIGURE 4 D –4F, 8)

Trichobalya varians Gressitt & Kimoto, 1963: 374  ; Gressitt & Kimoto, 1965: 802 (as synonym of Doryscus testaceus  ). Doryscus testaceus: Kimoto, 1989: 196  . Misidentification

Doryscus varians: Kimoto, 1991: 119  (recurred from synonym); Beenen, 2010: 474 (as synonym of Doryscus testaceus  ). Doryscus nigricollis Jiang, 1992: 649  . New synonym

Doryscus marginicollis Jiang, 1992: 649  . New synonym

Types (n= 3). Doryscus nigricollis  . The holotype was supposed to be deposited at the IZAS but was not found there (Rui-E Nie, personal communication, September 6, 2016). Based on the sudy of a large series of specimens from Yunnan D. nigricollis  proved to be a color form of D. varians  .

Doryscus marginicollis  . Holotype ♂ (IZAS), labeled: “ ṮĦ [p] ŠOEƦ 济 ṃ [h] (= Yunnan Weixi Baijixun) / 2250m [h] / ϕÑṆḤK (= Academia Sinica, China) [p, w] // 1981. VI.13. [h] / ※Dzff: [p] ṈẼÜ (= Collector: Liao Su-Bo) [h, w] // Doryscus  / marginicollis  / sp. n. [h] / ǍṪff: [p] ṘṞṊ (= det. Jiang Sheng-Qiao) [p, w] // HOLOTYPE [p, r]”.

Trichobalya varians  . Holotype ♀ (BPBM), labeled: “FUKIEN, S. CHINA / Chungan: Bohea / Hills T. c. Maa [p, w] // Bohea Hills / 30.IV.1940 [h, w] // F. 7550 [h, w] // Trichobalya  / varianas / G & K [h] / J. L. Gressitt det. [p, w] // HOLOTYPE [p] ♀ / Trichobalya  / varians  [h] / Gressitt & Kimoto [p, r]. Paratype: 1♀ (BPBM), labeled: “Nanking China [p] / V.3 [h] -1923 [p, w] // EC Van Dyke / Collector [p, w] // Van Dyke / Collection [p, w] // PARATYPE [p] / Trichobalya  / varians  [h] / Gressitt & Kimoto [p, y].

Additional specimens (n= 202). CHINA. Yunnan: 1♂ ( TARI), Bangdashan (fflaeƜ), 4.IX.2015, leg. Y.- T. Chung; 1 ♁ ( NHMB), Jizushan , 25°58’N 100°21’E, 2500–2700 m, 6–10.VII.1994, leg. V. KubáňGoogleMaps  ; 1 ♁, 9 ¥¥ ( TARI), Ruili (* 丽), 5–13.IX.2014, leg. Y.- T. Wang; 1 ¥ ( SEHU), Simao, 8.V.1982, leg. M. Takakuwa  ; 1 ¥ ( SEHU), Sishuangpanna (= Xishuangbanna), Ertapi , 7.V.1982, leg. M. Takakuwa  ; 1 ¥, ( NME), Xishuangbanna, 23km NW Jinghong, vic. Na Ban ( NNNR),, 22°09’49”N 100°39’92”E, 730m, 12.V.2008, leg. A. Weigel  ; 2 ♁♁, 2 ¥¥ ( NHMB), Yipinglang , 25°05’N 101°53’E, 1800 m, 8–10.VI.1993, Bolm; 5 ♁♁, 2 ¥¥ ( NHMB), same locality, 8–10.VI.1993, leg. V. Kubáň; 2♂♂GoogleMaps  , 2♀♀ ( NHMB), same locality, 17–20.VI.1994, leg. V. KubáňGoogleMaps  ; INDIA. 1♂ ( BMNH), Nilgiri Hills, 94-89, leg. G. F. Hampson  ; LAOS. Houa Phan Prov. : 25♂♂  , 49♀♀ ( NHMB), Ban Saleui + 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  ; 1♂ ( NHMB), same locality, 10.V.–16.VI.2009, leg. M. Brancucci & local collectors  ; 1♂, 1♀ ( NHMB), same locality, 9–17.VI.2009, leg. M. Geiser  ; 1♂ ( EUMJ), Ban Saleui, Xam Neua , 28–30.III.2005, leg. J. Yamasako  ; 1♂, 1♀ (EUMJ), same but with “ 30–31.III.2005 ”; 1♀ (EUMJ), same but with “ 27.IV.–11.V.2007 ”; 1♀ ( NME), same locality, 11.IV.–15.V.2012, leg. C. Holzschuh  ; 3♀♀ ( NHMB), Phu Phan Mt. , 20°12’N 104°01’E, 1500–1900 m, 17.V.–3.VI.2007, leg. M. BrancucciGoogleMaps  ; 3♂♂, 2♀♀ ( NHMB), same locality, 17.V.–3.VI.2007, leg. V. KubáňGoogleMaps  ; 1♂, 2♀♀ ( NHMB), same locality, 1–16.VI.2009, leg. Z. KrausGoogleMaps  ; Louang Namtha Prov.: 4♂♂  , 4♀♀ ( NHMB), Namtha + Muang Sing , 21°09’N 101°19’E, 900–1200 m, 5–31.V.1997, leg. V. KubáňGoogleMaps  ; 1♂, 4♀♀ ( NHMB), Muang Sing town , 21°11’N 101°09’E, 14–20.V.2011, leg. M. Geiser & D. HauckGoogleMaps  ; Louang Prabang Prov.: 4♀♀ ( NHMB), Ban Song Cha (5 km W), 20°33–4’N 102°14’E, 1200 m, 1–16.V.1999, leg. V. Kubáň  ; 5♀♀ ( NHMB), 25 km E Muang Ngoy , 20°42’N 102°54’E, 1000 m, 23.IV.1999, leg. V. KubáňGoogleMaps  ; Phongsaly Prov.: 2♀♀ ( NHMB)  , Phongsaly env., 21°41’N 102°06–8’E, 1500 m, 6–17.V.2004, leg. V. Kubáň  ; Xieng Khouang Prov.: 1♂  , 1♀ ( NHMB), 30 km NE Phonsavan: Ban Na Lam + Phou Sane Mt. , 19°37–8’N 103°20–1’E, 1300–1700 m, 10–30.V.2009, leg. M. Geiser  ; THAILAND. Chiang Mai Prov.: 1♀ ( BPBM), Chiangmai , 1500 m, 11–12.IV.1966, leg. J. Sedlacek  ; 2♀♀ ( NHMB), Doi Chiang Dao , 1200± 500 m, 19°24’N 98°51’E, 9–13.V.2009, leg. L. DembickýGoogleMaps  ; 1♀ ( NHMB), same locality, 9–14.V.1991, leg. D KrálGoogleMaps  ; 1♀ ( NHMH), same locality, 10–16.V.1991, leg. V. KubáňGoogleMaps  ; 1♂, 1♀ ( SEHU), Doi Pui , 5.V.1983, leg. M. Takakuwa  ; 2♂♂ ( SEHU), same locality, 23.V.1983, leg. K. Ikeda  ; 2♂♂, 1♀ ( SEHU), same locality, 3.V.1984, leg. M. Takakuwa  ; 1♂ ( SEHU), same locality, 3.V.1984, leg. H. Akiyama  ; 1♂ ( SEHU), Doi Suthep , 7.IV.1981, leg. M. Ito  ; 1♂ ( SEHU), same locality, 31.V.1983, leg. Y. Komiya  ; 1♂ ( NHMB), same locality, 19–22.IV.1991, leg. S. Bily  ; 1♂, 2♀♀ ( NHMB), Doi Suthep to Doi Pui , 18°49’N 99°00’E, 19–23.IV.1991, leg. L. DembickýGoogleMaps  ; 2♂♂, ( SEHU), Meo Village , 26–28.IV.1980, leg. S. Tsuyuki  ; 1♂, 1♀ ( SEHU), same locality, 4.V.1980, leg. A. Yasuda  ; 2♂♂, 1♀ ( SEHU), same locality, 6.IV.1981, leg. M. Ito  ; 1♂, 1♀ ( SEHU), same locality, 29.IV.1982, leg. M. Ito  ; 3♂♂, 3♀♀ ( NHMB), Pha Hom Pok Mt. , 1900–2200 m, 20°02’N 99°08’E, 23–30.IV.2009, leg. L. DembickýGoogleMaps  ; 1♀ ( SEHU), Phuping Palace , 28.V.1983, leg. S. Ohmomo  ; Chiang Rai Prov.: 1♂  , 1♀ ( NHMB), 7 km S of Doi Chang , 1600± 50 m, 19°48’N 99°34’E, 16–18.V.2009, leg. L. DembickýGoogleMaps  ; 1♂, ( NHMB), Mae Hong Son, Ban Huai Po , 1600 m, 9–16.V.1991, leg. J. Horák  ; 1♂ (UACB), 1♀ ( RBCN), same locality, 1–5.V.1992, leg. S. Jan  ; 3♂♂, 2♀♀ ( NHMB), same locality, 8–17.V.1992, leg. S. Bily  ; 2♂♂, 3♀♀ ( NHMB), Soppong-Pai , 1800 m, 1–6.V.1991, leg. Pacholátko  ; VIETNAM. 2♂♂  , 1♀ ( BPBM), Dalat 6km S., 1400–1500 m, 9.VI.–7.VII.1961, leg. N. R. Spencer  ; 1♀ ( BPBM), Mt. Lang Bian , 1500–2000 m, 19.V.–8.VI.1961, leg. N. R. Spencer  .

Redescription. Length 3.7–4.8 mm, width 1.6–1.9 mm. General color yellow; lateral margins of pronotum, suture and lateral margin of elytra, and outer margins of tibiae black, metasternum dark brown ( Fig. 4View FIGURE 4 D); abdomen blackish brown in some individuals; some individuals with black elytra but usually yellow apically, and metasternum yellowish brown ( Fig. 4View FIGURE 4 E); some specimens with dark lateral margins and dark suture of elytra reduced ( Fig. 4View FIGURE 4 F). First antennomere not modified in males ( Fig. 8View FIGURE 8 A), length ratios of antennomeres I –XI 1.0: 0.5: 0.7: 0.9: 0.9: 0.8: 0.8: 0.8: 0.8: 0.7: 0.9, length to width ratios of antennomeres I –XI 3.2: 2.1: 3.3: 3.7: 3.7: 3.5: 3.6: 3.5: 3.6: 3.3: 4.2; first antennomere more slender in female ( Fig. 8View FIGURE 8 B), length ratios of antennomeres I – XI 1.0: 0.4: 0.6: 0.8: 0.8: 0.8: 0.8: 0.8: 0.8: 0.8: 0.9, length to width ratios of antennomeres I –XI 3.8: 2.0: 3.1: 3.9: 3.9: 3.7: 3.8: 3.6: 3.4: 3.2: 4.3. Elytra 1.7 x longer than wide; surface with erect setae pale, sparse, and short setae; and fine punctures. Apical margin of last abdominal ventrite with two well developed incisions in male ( Fig. 8View FIGURE 8 G); medially depressed in females ( Fig. 8View FIGURE 8 H). Penis ( Figs 8View FIGURE 8 C –8D) slender, 6.4 x longer than wide, gradually narrowed towards apex; apex of dorsal surface with extremely deep median notch, in some male with notch shorter and a transverse groove present at apical 1/10; apex of ventral surface widely rounded; weakly curved in lateral view, apex with extremely narrow notch between dorsal and ventral surfaces; ventral surface smooth. Internal sac without setae; endophallic spiculae elongate, about 0.7 x as long as penis, median spicula short, apically tapering, ventrally curved in lateral view; lateral spiculae with inner margins covered with tiny spines, basally conjoined; two pairs of dorsal endophallic spiculae with different shapes, one pair short and horn-like, ventrally covered, the second pair slender, curved near apex; three pairs of lateral endophallic spiculae horn-like, located from basal 1/3 to 1/2; one pair of ventral endophallic spiculae long, separated, apices bifurcate. Gonocoxae ( Fig. 8View FIGURE 8 E) elongate, 6.9 x longer than wide, sides narrowed at apical 1/10 and 3/10; apices narrow rounded; inner margins closely approximate from apex to half, apex with eight or nine setae; extremely slender from midpoint to base but abruptly widened at base. Ventrite VIII ( Fig. 8View FIGURE 8 F) well sclerotized; spiculum long; apex square, apical margin truncate, with several short setae; disc with three long setae at sides. Receptacle of spermatheca ( Fig. 8View FIGURE 8 I) weakly swollen and narrow, narrowly separated from pump; pump extremely slender and curved, apically tapering; proximal spermathecal duct wider than receptacle, shallowly projecting into receptaculum.

Differential diagnosis. Doryscus varians (Gressitt & Kimoto)  adults are distinct within the genus in possessing sparse, short, erect setae on the elytra.

Remarks. Vietnamese specimens deposited at BPBM and identified by Kimoto (1989) were available for study, they belong to this species.

Distribution. China (Yunnan, Fujian), India, Laos, Thailand, Vietnam.

TARI

Taiwan Agricultural Research Institute

NHMB

Naturhistorisches Museum, Basel

NME

Sammlung des Naturkundemseum Erfurt

EUMJ

Ehime University

BPBM

Bishop Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Doryscus

Loc

Doryscus varians ( Gressitt & Kimoto, 1963 )

Lee, Chi-Feng 2017
2017
Loc

Doryscus varians:

Beenen 2010: 474
Jiang 1992: 649
Kimoto 1991: 119
2010
Loc

Trichobalya varians

Kimoto 1989: 196
Gressitt 1965: 802
Gressitt 1963: 374
1965
Loc

Doryscus marginicollis

Jiang 1992: 649