Nysius ericae ericae ( Schilling, 1829 )

Ge, Xinyu & Li, Junlan, 2019, Review of the genus Nysius Dallas from Mongolian Plateau (Hemiptera: Heteroptera: Orsillidae), Zootaxa 4560 (1), pp. 171-183 : 172-173

Nysius ericae ericae ( Schilling, 1829)

( Fig. 1 )

Heterogaster ericae Schilling, 1829: 86 .

Nysius ericae: Zheng & Zou, 1981: 32 .

Diagnosis: The body color is yellowish brown. Nysius ericae ericae is very similar to Nysius thymi thymi in coloration and body size. It is distinguished from the latter by the end of the buccula is sharpened or somewhat blunt, and the first segment of the rostrum commonly exceeds or equal to the buccula. Inner projection of paramere with a broad concave and the blade obviously curved ( Fig. 10 ). Pygophore ( Fig. 15 ), spermatheca ( Fig. 20 ) and ejaculatory reservoir ( Fig. 25 ) as shown in the figures.

Measurements. Male. (n=10): Total length: 3.60–4.40 (4.00); head length: 0.72–0.79 (0.76); head width: 0.97–1.10 (1.01); interocular space: 0.59–0.62 (0.60); Antennal segments:? 0.30–0.32 (0.31),? 0.65–0.66 (0.6),? 0.54–0.55 (0.55),? 0.65–0.67 (0.65); pronotum length: 0.70–0.80 (0.76); pronotum width: 1.20–1.25 (1.23); scutellum length: 0.59–0.60 (0.59); scutellum width: 0.77–0.80 (0.78); claval commissure length; 0.53–0.56 (0.55); abdomen length: 2.10–2.50 (2.35); abdominal width: 0.80–1.30 (1.11).

Female. (n=10): Total length: 3.70–4.50 (4.05); head length: 0.73–0.81 (0.77); head width: 0.99–1.20 (1.04); interocular space: 0.59–0.65 (0.63); Antennal segments:? 0.30–0.33 (0.32),? 0.65–0.67 (0.66),? 0.55–0.58 (0.57),? 0.65–0.67 (0.66); pronotum length: 0.72–0.84 (0.79); pronotum width: 1.20–1.30 (1.27); scutellum length: 0.59– 0.62 (0.61); scutellum width: 0.78–0.80 (0.78); claval commissure length; 0.54–0.56 (0.55); abdomen length: 2.25– 2.80 (2.59); abdominal width: 0.91–1.60 (1.38).

Material examined. INNER MONGOLIA: Alxa League: Alxayouqi , 12♀♀ 6♂♂, 18-VIII-2000 , Wu Zhiyi; Alxazuoqi, 5♀♀ 2♂♂, 5-VIII-2000, Wu Zhiyi; Ejinaqi, 5♀♀, 18-VII-2000, Shi Li. Bayannur League: Hangjinghouqi, 3♀♀, 10-IX-1979, Nonnaizab; Linhe, 5♀♀, 16-VIII-1982. Ordos City: Dongsheng District , 3♀♀, 23-VII-1988 ; Etuokeqianqi, 5♀♀ 1♂, 25-VII-2006, Wang Junqing; Etuokeqi, 3♀♀ 1♂, 25-VII-1987; Dalateqi, 2♂♂, 12-VII-2005, Qiu Qinfeng; Wushenqi, 12♀♀ 2♂♂, 18-IX-2001, Wu Zhiyi; Yijinhuoluoqi, 2♂♂, 11-IX- 1988; Zhungeerqi, 2♀♀ 2♂♂, 18-IX-1988. Baotou City: Jiufeng Mountain , 9♀♀ 2♂♂, 27-VIII-1987 ; Tumoteyouqi, 6♀♀ 1♂, 27-V-1978; Daerhanmaoming, anlianheqi, 5♀♀ 2♂♂, 26-VIII-1987. Hohhot City: Tumotezuoqi, 2♀♀ 1♂, 18-VIII-2002; Helingeer county , 3♀♀ 1♂, 9-IX-2000 , Wu Zhiyi; Qingshuihe County, 3♂♂, 19-IX-2004 ; Saihan District , 4♀♀ 1♂, 26-V-2001 . Wulanchabu City: Liangcheng County, 3♂♂, 1-VII-1997 , Zhang Zhijun; Zhuozi County, 3♀♀ 1♂, 19-IX-1987 . Xilingol League: Zhengxiangbaiqi, 4♀♀ 1♂, 22-VI-1992, Guo Yuanchao; Sonidzuoqi, 4♀♀ 2♂♂, 25-VII-2010, Wang Ning; Erlianhaote city, 5♀♀ 1♂, 3-IX-1999, Wu Zhiyi; Zhenglanqi, 6♀♀ 2♂♂, 15-VIII-1979, 7♀♀ 2♂♂, 31-VIII-2 0 0 0, Nonnaizab; Taipusiqi, 5♀♀ 1♂, 5-VIII-1987; Sonidyouqi, 4♀♀ 1♂, 22-VII-2010, Wang Ning; Dongwuzhumuqinqi, 4♀♀ 1♂, 18-VII-1976; Xiwuzhumuqinqi, 4♀♀ 1♂, 8-VII-1990; Xilinhot City, 2♀♀, 2-VIII-1982. Chifeng City: Alukerqinqi, 12♀♀ 3♂♂, 10-VII-1989; Balinyouqi, Hanshan forest , 12♀♀ 6♂♂, 23-VII-2001 , Li Junlan; 17♀♀ 11♂♂, 15-VII-2 0 17, Ge Xinyu; Keshiketengqi, 8♀♀ 3♂♂, 14-VIII-1998, Wu Zhiyi; Wengniuteqi, 2♂♂, 23-VII-1998; Hongshan District , 2♂♂, 18-VII-2001 , Li Junlan. Tongliao City: Huolinguole city, 10♀♀ 2♂♂, 2-VII-1997, Zhang Zhijun; Keerqin district , 4♀♀ 1♂, 14-VIII-1992 ; Keerqinzuoyihouqi, 6♀♀ 2♂♂, 8-VIII-1988; Naimanqi, 6♀♀ 2♂♂, 27-VI-1987. Hinggan League: Aershan city, 8♀♀ 1♂, 10-VII-1999, Zhang Zhijun; Keerqinyouyizhongqi, 9-VI-2000, Li Junlan. MONGOLIA: Uvs aimag: 5♀♀, Ualchiu sum, 12-VIII-1975 , Tsereudolgor, R. Hovd aimag: 1♀, 8-VII-1980 , Puntsagdulau, J. Govi Altai aimag: 1♀, 26-IX-1967. Bayan hongan aimag: Suman khairkhan uul, 4♀♀, 19-VII- 1984, Namkhaidovj, B; shine jinst, 2♀♀, 10-VIII-1 977.

Distribution. Inner Mongolia, China: Alxa League (Alxayouqi, Alxazuoqi, Ejinaqi), Bayannur League (Hangjinghouqi, Linhe District), Ordos City (Dongsheng District, Etuokeqianqi, Etuokeqi, Dalateqi, Wushenqi, Yijinhuoluoqi, Zhungeerqi), Baotou City (Mt. Jiufeng, Tumoteyouqi, Daerhanmaoming anlianheqi), Hohhot City (Tumotezuoqi, Helingeer county, Qingshuihe county, Saihan District), Wulanchabu City (Liangcheng county, Zhuozi county, Qixiaying), Xilingol League (Zhengxiangbaiqi, Sonidzuoqi, Erlianhaote City, Zhenglanqi, Taipusiqi, Sonidyouqi, Dongwuzhumuqinq, Xiwuzhumuqinqi, Xilinhaote City), Chifeng city (Alukerqinqi, Balinyouqi, Keshiketengqi, Wengniuteqi, Hongshan District), Tongliao City (Huolinguole City, Keerqin district, Keerqinzuoyihouqi, Naimanqi), Hinggan (Aershan City, Keerqinyouyizhongqi, Wulanhaote City); Mongolia: Hovd, Dzavhan, Govi Altai, Arkhangai, Bayan hongan, Tuv, Umugovi, Dundgovi, Uvurkhangai; Elsewhere: China (Ningxia, Beijing, Tianjin, Hebei, Shanxi, Henan, Sichuan, Guizhou, Xizang, Taiwan), Asia, Europe, Africa, North America.

Notes. The previous distributional record in Hulunbuir of this species was referred to Nysius thymi thymi . Nysius ericae groenlandicus was reported from Inner Mongolia (Hohhot City, Chifeng City, Chifeng City, Baotou City, Tongliao City) according to the first segment of rostrum exceeding end of buccula (Nonnaizab, 1988). We have examined all these specimens and found the characters of parameres, pygophore, spermatheca and ejaculatory reservoir consistent with Nysius ericae ericae . Nysius ericae groenlandicus known previously from Inner Mongolia is referred to Nysius ericae ericae . The morphology of buccula of this species has intraspecific variation. The distal end sharp ( Fig. 7 ) or somewhat blunt ( Fig. 6 ), reaching the base of head ( Fig. 9 ) or not ( Fig. 8 ), the first segment of the rostrum equal to buccula ( Fig. 6 ) or longer than buccula ( Fig.7 ). These specimens parameres, pygophore, spermatheca and ejaculatory reservoir are all the same.

Figures

FIGURES 1–5. Adult dorsal habitus: Fig. 1, N. ericae ericae; Fig. 2, N. eximius; Fig. 3, N. helveticus; Fig. 4, N. senecionis; Fig. 5, N. thymi thymi.(scale bar = 1.0mm).

FIGURES 10–19. Figs. 10–14. Right Parameres: Fig. 10, N. ericae ericae; Fig. 11, N. eximius; Fig. 12, N. helveticus; Fig. 13, N. senecionis; Fig. 14, N. thymi thymi; Figs. 15–19. Pygophore: Fig.15, N. ericae ericae; Fig. 16, N. eximius; Fig. 17, N. helveticus; Fig. 18, N. senecionis; Fig. 19, N. thymi thymi. (scale bar = 0.10mm).

FIGURES 20–30. Figs. 20–24. Spermatheca: Fig. 20, N. ericae ericae; Fig. 21, N. eximius; Fig. 22, N. helveticus; Fig. 23, N. senecionis; Fig. 24, N. thymi thymi; Figs. 25–28,30. Ejaculatory reservoir and duct: Fig. 25, N. ericae ericae; Fig. 26, N. eximius; Fig. 27, N. helveticus; Fig. 28, N. senecionis; Fig. 29, N. senecionis ejaculatory reservoir; Fig.30, N. thymi thymi. (scale bar = 0.10mm).

FIGURES 6–9. The diverse shape of buccula and rostrum of N. ericae ericae (scale bar = 0.10mm).