Table 1 Morphometric data of the females of Helicotylenchus zengchengensis n. sp

n

1

12

L

608.9

608.4 ± 52.4 (496.5–688.9)

a

20.7

28.1 ± 3.5 (22.7–32.9)

b

5.5

4.9 ± 0.4 (3.8–5.5)

b´

4.9

4.6 ± 0.4 (3.6–5.2)

c

20.3

19.9 ± 1.9 (15.8–22.6)

c´

2.0

2.2 ± 0.2 (1.9–2.4)

V

57.7

60.4 ± 2.6 (54.8–64.9)

V´

60.7

63.7 ± 2.8 (57.7–69.3)

m

48.7

49.2 ± 1.2 (47.8–51.8)

G1

16.7

21.4 ± 5.4 (15.8–31.8)

G2

16.5

14.2 ± 1.6 (12.2–17.3)

Distance from anterior end to excretory pore %L

16.9

16.7 ± 1.8 (14.3–21.3)

Stylet length %L

4.2

4.3 ± 0.4 (3.7–5.2)

Head diameter

6.6

6.2 ± 0.3 (5.6–6.8)

Head height

3.3

3.4 ± 0.4 (3–4.1)

Stylet length

25.7

26 ± 1.5 (23.8–29.3)

Stylet cone length

12.5

12.9 ± 0.6 (12.2–14)

Stylet basal knob width

4.5

4.6 ± 0.3 (3.8–5.2)

Stylet basal knob height

2.1

2.2 ± 0.1 (2–2.3)

Distance from stylet base to the orifice of dorsal gland

11.6

10.9 ± 1.2 (9.5–13.4)

Median bulb length

12.1

11 ± 1.4 (8.3–13.3)

Median bulb width

8.8

8.4 ± 0.8 (7–9.7)

Distance from anterior end to median bulb valve

71.7

71.6 ± 4.6 (61.3–76.9)

Distance from anterior end to excretory pore

102.7

100.9 ± 7.1 (85.9–108)

Distance from anterior end to gland end

124.6

132.7 ± 10.5 (114.7–142.7)

Distance from anterior end to vulva

351.2

367.7 ± 35.4 (322.3–428.3)

Distance from vulva to anus

227.6

209.7 ± 25 (142.7–236.6)

Lateral field width

5.4

5 ± 0.8 (3.8–6.1)

Maximum body diameter

29.4

21.9 ± 2.8 (17.9–26.4)

Body diameter at anus

15.4

14.3 ± 0.7 (13.4–15.4)

Tail length

30.1

30.7 ± 1.7 (27.8–33.5)

Tail annuli

16

16.4 ± 1.1 (15–18)