Macromyzus woodwardiae (Takahashi)

Su, Xiao-Mei & Qiao, Ge-Xia, 2010, Macromyzus Takahashi (Hemiptera, Aphididae), a generic account, description of one new species, and keys to species, Zootaxa 2619, pp. 1-13 : 8-11

Macromyzus woodwardiae (Takahashi)

( Table 2 and Figures 21 , 23 )

Myzus woodwardiae Takahashi, 1921: 20 .

Myzus woodwardiae Takahashi: Takahashi, 1923 : 28, 82; 1931: 70.

Macrosiphum woodwardiae (Takahashi) : Takahashi, 1925: 3.

Macromyzus woodwardiae ( Takahashi): Takahashi, 1960 : 225; Tao, 1963: 168; 1990: 278; 1999: 73; Miyazaki, 1968: 19; 1971: 81; 1972: 36; Eastop & Hille Ris Lambers, 1976: 248; Raychaudhuri, 1980: 165; Remaudière & Remaudière, 1997: 108; Lee, 2002: 127; Blackman & Eastop, 2006: 1191.

Myzus woodwardiae hinoi Moritsu, 1952: 26 .

Material examined. 4 apterous viviparous females, Hainan (Ledong County), 24 March 1984, No. 7855, on a kind of fern, coll. T.S. Zhong and G.X. Zhang; 2 apterous viviparous females and 9 apterous nymphs, Chongqing (Jingyun Mountain), 27 April 1991, No. 10014 (5 slides), on a kind of fern, coll. T.S. Zhong and G.X. Zhang; 14 apterous viviparous females, Hunan (Guidong County), 10 July 2008, No. 21757 (5 slides), 21774, 21778, on Woodwardia japonica , coll. X.M. Su; 2 apterous viviparous females and 1 apterous nymph, Hunan (Guidong County), 12 July 2008, No. 21801, on Woodwardia japonica , coll. X.M. Su; 1 apterous viviparous female, Hunan (Yizhang County), 14 July 2008, No. 21806, on Woodwardia japonica , coll. X.M. Su; 14 apterous viviparous females and 7 alate viviparous females, Guangdong (Ruyuan County), 16 July 2008, No. 21818, 21819 (2 slides), 21820, 21821, 21826, 21829, 21833, 21830 (2 slides), 21834 (2 slides) on Woodwardia japonica , coll. X.M. Su; 2 apterous viviparous female and 4 alate viviparous female, Hunan (Yizhang County), 17 July 2008, No. 21840, 21842, on Woodwardia japonica , coll. X.M. Su; 2 apterous viviparous females, Guangdong (Ruyuan County), 18 July 2008, No. 21858, 21871 (2 slides), on Woodwardia japonica , coll. X.M. Su; 16 apterous viviparous females and 5 alate viviparous females, Guangdong (Ruyuan County), 19 July 2008, No. 21860 (2 slides), 21861, 21862 (2 slides), 21863, 21864 (2 slides), 21870, 21874 (2 slides), 21877, 21893, on Woodwardia japonica , coll. X.M. Su; 5 apterous viviparous females and 4 alate viviparous females, Guangdong (Ruyuan County), 20 July 2008, 21879 (2 slides), 21889 (2 slides), on Woodwardia japonica , coll. X.M. Su; 1 apterous viviparous female, Guangdong (Ruyuan County), 20 July 2008, No. 21878-1(-1-2), on Arachniodes chinensis , coll. X. M. Su; 1 apterous viviparous female, Guangdong (Ruyuan County), 20 July 2008, No. 21880, on Diplopterygium glaucum , coll. X.M. Su; 4 apterous viviparous females, Guangdong (Ruyuan County), 21 July 2008, 21902 (2 slides), on Blechnum orientale , coll. X.M. Su; 6 apterous viviparous females, Guangdong (Ruyuan County), 21 July 2008, No. 21901, 21903, 21914, on Woodwardia japonica , coll. X.M. Su; 17 apterous viviparous females and 2 alate viviparous females, Guangdong (Shixing County), 23 July 2008, No. 21918, 21919, 21920, 21924, 21928, 21931 (2 slides), 21932, 21933, 21935, 21937 (2 slides), on Woodwardia japonica , coll. X.M. Su; 1 apterous viviparous female, Guangdong (Shixing County), 23 July 2008, No. 21936, on Microlepia marginata , coll. X.M. Su; 2 apterous viviparous females and 2 alate viviparous females, Guangdong (Shixing County), 23 July 2008, No. 21926, on Dryopteris fuscipes , coll. X.M. Su; 4 apterous viviparous females, Guangdong (Shixing County), 24 July 2008, 21951, 21962, on Woodwardia japonica , coll. X.M. Su; 1 apterous viviparous female?Guangdong (Shixing County), 24 July 2008, No. 21945, on Microlepia marginata , coll. X.M. Su.

Distribution. China: Chongqing, Hunan, Guangdong, Guangxi, Taiwan; India, Indonesia, Japan, Korea, and Nepal.

Host plants. Asplenium adiantum-nigum, Asplenium auriculatum , ( Aspleniaceae ), Athyrium sp., Athyrium macrocarpum (Athyriaceae) , Dryopteris molle (Dropteridaceae) , Polypodium sp. ( Polypodiaceae ) ( Raychaudhuri, 1980); Asplenium curicularium , Asplenium esculentum (Ghosh, 1974) ; Cyrtomium falcatum ( Lee, 2002) ; Dryopteris monticola , Dryopteris varia (Dryopteridaceae) , Rumohra mutica ( Miyazaki, 1968; Miyazaki, 1971); Hydrangea involucrata (Saxifragaceae) ( Miyazaki, 1972); Woodwardia sp. ( Blechnaceae ), Polystichum sp. ( Dryopteridaceae ) ( Takahashi, 1921 and Tao, 1963); Woodwardia radicans ( Blackman & Eastop, 2006) . Six species, Arachniodes chinensis (Dryopteridaceae) , Blechnum orientale (Blechnaceae) , Diplopterygium glaucum (Gleicheniaceae) , Dryopteris fuscipes (Dryopteridaceae) , Microlepia marginata (Dennstaedtiaceae) and Woodwardia japonica (Blechnaceae) , are newly added to the list of host plants ( Fig. 23 ).

Biology. The species colonized on undersides or upsides of fronds and new growth of ferns in many genera. Anholocyclic on ferns in most places, but in Japan, it is apparently also partially heteroecious holocyclic. Adult fundatrices occurred in late April or early May. They infest young leaves and tender shoots of Hydrangea spp., without causing any deformations to the hosts ( Miyazaki, 1972).

Figures

FIGURE 23. Host plants of Macromyzus woodwardiae: A. Diplopterygium glaucum (Gleicheniaceae), B. Blechnum oritentale (Blechnaceae), C. Arachniodes chinensis (Arachniodes), D. Dryopteris fuscipes (Dryopteridaceae), E. Microlepia marginata (Dennstaedtiaceae), F. Woodwardia japonica (Blechnaceae), G. Woodwardia japonica (Blechnaceae).

FIGURES 12 – 21. Macromyzus (Macromyzus) species. M. (M.) spinosus sp. nov. 12 – 20: apterous viviparous female: 12. dorsal view of body, 13. dorsal view of head, 14. antennal segments I – III, 15. ultimate rostral segment, 16. dorsal patches on abdominal tergites II – III, 17. siphunculus, 18. cauda. Fourth instar nymph: 19. dorsal view of body, 20. antennal segments I – III. M. (M.) woodwardiae Fourth instar nymph: 21. antennal segments I – III. Scale bar = 0.10 mm.

Tables

TABLE 2. Biometric data (mean, range) of Macromyzus woodwardiae (in mm).

Part	Apterous viviparous females (n=8)	Alate viviparous females (n=5)
Length (mm) Body length	2.25(2.18–2.32)	2.38 (2.21–2.55)
Body width	1.30(1.19–1.40)	1.03 (0.94–1.12)
Ant.I	0.11 (0.10–0.12)	0.12 (0.10–0.13)
Ant.II	0.07 (0.06–0.08)	0.07 (0.06–0.07)
Ant.III	0.75 (0.70–0.79)	0.80 (0.71–0.89)
Ant.IV	0.50 (0.47–0.53)	0.56 (0.52–0.59)
Ant.V	0.44 (0.43–0.45)	0.47 (0.45–0.49)
Ant.VIb	0.14 (0.13–0.15)	0.13 (0.12–0.14)
PT	0.75 (0.68–0.82)	0.84 (0.81–0.86)
URS	0.17 (0.16–0.18)	0.17 (0.16–0.17)
BW URS	0.09 (0.08–0.10)	0.08 (0.07–0.08)
Hind femur	0.96 (0.92–0.99)	0.95 (0.85–1.05)
Hind tibia	1.82 (1.77–1.87)	2.03 (1.92–2.14)
H.t.II	0.085(0.08–0.09)	0.09 (0.08–0.09)
Siphunculus BW SIPH	0.73(0.67 – 0.79) 0.17 (016 – 0.18)	0.78 (0.75–0.81) 0.13 (0.11–0.14)
DW SIPH	0.055(0.05 – 0.06)	0.05 (0.04–0.05)
Cauda	0.16 (0.14–0.18)	0.16 (0.15–0.17)
BW Cauda	0.14 (0.12–0.15)	0.13 (0.11–0.15)
b.d.III	0.032 (0.030–0.034)	0.28(0.025–0.030)
MW Hind tibia	0.035 (0.03–0.04)	0.04 (0.03–0.04)
Cephalic setae	0.045 (0.04–0.05)	0.033 (0.025–0.040)
Setae on Ant.III	0.035(0.03–0.04)	0.04 (0.03–0.04)
Setae on Tergite I	0.06 (0.05–0.07)	0.036 (0.034–0.037)
Setae on Tergite VIII	0.08 (0.06–0.09)	0.049 (0.042–0.056)
Setae on Hind tibia	0.035(0.03–0.04)	0.035 (0.03–0.04)
Ratio (times) Whole antennae / Body	1.14 (1.19–1.24)	1.25 (1.21–1.29)
Hind femur /Antennal segment III	1.31(1.25–1.36)	1.63 (1.18–2.08)
Hind tibia / Body	0.80 (0.77–0.83)	0.83 (0.81–0.84)
PT / Ant.VIb	5.77(5.23–6.31)	6.36 (5.79–6.92)
URS / BW URS	1.97 (1.80–2.13)	2.32 (2.06–2.57)
URS / H.t.II	1.92 (1.81–2.03)	1.95 (1.83–2.06)
Cauda / BW Cauda	1.12 (1.11–1.23)	1.27 (1.17–1.37)
Cephalic setae / b.d.III	1.29 (1.21–1.36)	1.17 (1.00–1.33)
Setae on Ant.III / b.d.III	1.13 (1.00–1.25)	1.30 (1.00–1.60)
Setae on Tergite VIII / b.d.III	2.39 (1.79–3.00)	2.00 (1.70–2.30)
Setae on hind tibia / MW Hind tibiae	1.15 (0.88–1.42)	1.04 (0.80–1.27)