Review of the bamboo-feeding genus Agrica Strand (Hemiptera: Cicadellidae: Deltocephalinae), with description of two new species from China
Author
Luo, Qiang
Author
Yang, Lin
Author
Chen, Xiang-Sheng
text
Zootaxa
2018
4418
1
75
84
journal article
30131
10.11646/zootaxa.4418.1.4
5e8fa47b-bfdc-4703-977e-a27c4f92f258
1175-5326
1242519
17126D98-1FD6-45B2-8124-99BF32103903
Agrica
arisana
(Matsumura, 1914)
(
Figs 1–25
)
Horvathiella arisana
Matsumura, 1914: 234
.
Agrica
arisana
(Matsumura, 1914)
, Strand, 1942: 393.
Male. Measurement
. Length (including tegmen):
♂
3.90–4.35 mm (N=62).
Colouration.
Body (
Figs 1–2
) yellow brown, eyes sandy beige to dark brown. Middle of crown (
Fig. 6
) brownish black, costal region yellowish white and posterior margins area pale yellow. Face (
Fig. 7
) black, with yellowish brown transverse stripe. Frontoclypeus (
Fig. 7
) brownish black. Pronotum (
Figs 1, 6
) dark yellow to dark brown, with two transverse arcuate pale yellow bands. Scutellum (
Figs 1, 6
) yellow, with or without one black median spot on anterior margin. Veins (
Figs 1–2
) yellow brown. Legs (
Fig. 2
) marked with brown.
FIGURES 1–12.
Agrica
arisana
(Matsumura, 1914)
1. Adult ♂, dorsal view; 2. Adult ♂, lateral view; 3. Adult ♀, dorsal view; 4. Adult ♀, lateral view; 5. Head and thorax ♂, lateral view; 6. Head and thorax ♂, dorsal view; 7. Face ♂; 8. Abdomen apex ♂, ventral view; 9. Abdomen apex ♀, ventral view; 10. Face ♀; 11. Head and thorax ♀, dorsal view; 12. Head and thorax ♀, lateral view. Scale bar: 0.5 mm.
FIGURES 13–25.
Agrica
arisana
(Matsumura, 1914)
13. Forewing; 14. Hindwing; 15. Fore femur and tibia, anterior surface; 16. Female sternite VII; 17. Valve and subgenital plate, ventral view; 18. Male pygofer and anal tube, lateral view; 19. connective, ventral view; 20. Style, dorsal view; 21. Aedeagus, caudal view; 22. Male pygofer, ventral view; 23. Aedeagus and connective, ventral view; 24. First valvula, lateral view; 25. Second valvula; lateral view. Scale bar: 0.5 mm (13–16; 24–25); 0.2 mm (17–23).
Head and thorax.
Crown (
Figs 1, 6
) slightly shorter than pronotum (0.92:1), sub-conically anteriorly protruded. Crown with anterior and submarginal carinae between apex and ocelli and shorter than breadth between eyes (0.8:1). Coronal suture (
Figs 1, 6
) shorter than half of length in median line of crown. Pronotum (
Fig. 6
) about 2 times wider than long, and as wide as head. Forewing (
Figs 1–2
) about 2 times longer at middle than widest part.
Male genitalia.
Male pygofer (
Figs 18, 22
) broad basally and narrowed posteriorly its ventroposterior angle lobately produced with dorsal pair of unequal spinous processes. Ventral margin with many short inner setae before the base of spinous processes. Connective (
Fig. 19
) arms and stem subequal, articulated with base of aedeagus. Aedeagus (
Fig. 23
) symmetrical, J-shaped in lateral view, shaft sinuate subapically, dorsal apodeme well developed, gonopore apical.
Female. Measurement.
Length (including tegmen):
♀
3.90–4.25 mm (N=113).
Colouration.
Body (
Figs 3–4
) nearly uniform pale yellowish green. Crown (
Figs 3, 11
) yellowish green, pronotum (
Figs 3, 11
) pale yellow to yellowish green, scutellum (
Figs 3, 11
) pale yellow. Eyes pale brown. Frontoclypeus (
Fig. 10
) pale yellowish green to dark, anteclypeus (
Fig. 10
) and lorum dark. Forewing pale yellowish green with apical cells area a little transparent. Veins (
Figs 3–4
) yellowish green, with dark markings restricted to subapical area of corium.
Head and thorax.
Crown (
Figs 3, 11
) sub-conically anteriorly produced, median length slightly shorter or subequal to breadth between eyes (0.9:1); coronal suture (
Fig. 3, 11
) visible at basal one third to one-half. Frontoclypeus (
Fig. 10
) strongly convex ventrally in profile. Pronotum (
Figs 3, 11
) as wide as head including eyes, slightly shorter than median length of crown (0.86:1).
Female genitalia.
Sternite VII (
Fig. 16
) with anterior margin nearly straight; posterior margin with two obvious concave cracks and the middle part V-shaped (
Fig. 16
). Pygofer (
Fig. 9
) with numerous macrosetae. Ovipositor (
Fig. 9
) protruding slightly beyond pygofer apex. First valvula (
Fig. 24
) weakly curved, tapering apically. Second valvula (
Fig. 25
) broad, widest near mid-length, thereafter gradually tapered to acute apex; dorsal margin with numerous fine regular teeth.
Material
examined.
13♂♂
11♀♀
,
China
:
Lingxian
,
Snow Mountain
,
Taichung
,
Taiwan Prov.
,
10 April 2009
, coll.
Wen-Bin Yeh
(
NCHU
),
Fargesia spathacea
Franch (Bambusaeae)
;
32♂♂
69♀♀
,
China
:
Dongfeng
,
Snow Mountain
,
Taichung
,
Taiwan Prov.
,
3 August 2010
, coll.
Wen-Bin Yeh
(
NCHU
),
Fargesia spathacea
Franch (Bambusaeae)
;
17♂♂
33♀♀
,
China
:
Qika mountain
villa,
Snow Mountain
,
Taichung
,
Taiwan Prov.
,
9 June 2011
, coll.
Wen-Bin Yeh
(
NCHU
),
Fargesia spathacea
Franch (Bambusaeae)
.
Remarks
. This species resembles
A. bisubula
sp. nov.
, in appearance, but can be distinguished by: crown subconically anteriorly protruded, connective with stem as long as arms (
Fig. 19
), shaft sinuate subapically (
Fig. 23
). This species is strongly sexually dimorhpic in color and external morphology. It is easy to misidentify females and males as two different species. The male genitalia are described for the first time.
Host.
Fargesia spathacea
Franch (Bambusaeae)
.
Distribution.
China
(
Taiwan
)
.