Ctenothrips

Xie, Yonghui, Zhang, Hongrui & Li, Zhengyue, 2011, A new Ctenothrips from southwestern China (Thysanoptera: Thripidae), Zootaxa 2926, pp. 65-68 : 65-66

Key to world species of Ctenothrips

(*placed in key from description)

1. Antennal segments uniformly dark brown or brown.......................................................... 2

-. Antennal segments III–V yellow in part................................................... 3

2. Female macropterous; antennal segments dark brown; abdominal tergites I–VII hexagonally reticulate [ Nepal].. niger Kudo *

-. Female brachypterous; antennal segments brown; abdominal tergites V–VII with extremely faint reticulation, smooth in about posterior half; VII smooth [northern India]....................................................... smilax Bhatti *

3. Pronotum smooth, almost without sculpture................................................................. 4

-. Pronotum striate or weakly sculptured, never smooth......................................................... 9

4. Antennal segment III shaded; pronotum posterior margin with 3 pairs of setae [ Taiwan]......... kwanzanensis Takahashi *

-. Antennal segment III yellow; pronotum posterior margin with 2 pairs of setae...................................... 5

5. Forewings base slightly darker [Sichuan]...................................................... cornipennis Han*

-. Forewings base slightly paler or grey...................................................................... 6

6. Interocellar setae usually shorter than anterior margins of ocellar triangle, placed near posterior margin of posterior ocelli [N.E. America].............................................................................. bridwelli Franklin

-. Interocellar setae longer than anterior margins of ocellar triangle, and placed between posterior ocelli................... 7

7. Mesonotum without polygonally reticulate sculpture; abdominal sternite VII with posteromarginal setae arising anterior to posterior margin [Shaanxi]................................................ taibaishanensis Feng, Zhang & Wang *

-. Mesonotum with polygonally reticulate sculpture ( Fig. 4 ); abdominal sternite VII with posteromarginal setae situated in a row along posterior margin ( Fig. 8 )........................................................................... 8

8. Antennal segments III–IV yellow; forewings grey; abdominal tergite X with polygonally reticulate sculpture [Hubei]....................................................................................... leionotus Tong & Zhang*

-. Antennal segments III and basal half of IV–V yellow ( Fig. 2 ); forewings yellow with base slightly paler ( Fig. 9 ); abdominal tergite X with elongate reticulate sculpture ( Fig. 7 ) [Guizhou]................................... guizhouensis sp. n.

9. Interocellar setae just behind ocellar triangle; pronotum distinctly striate [ Taiwan].................. transeolineae Chen *

-. Interocellar setae within ocellar triangle; pronotum with light colored dots or weekly striate.......................... 10

10. Antennal segment III yellowish brown; pronotum with light colored dots [N.E. America]................. frosti Moulton*

-. Antennal segment III yellow; pronotum weakly striate....................................................... 11

11. Head not constricted just behind eyes; antennal segment III–V yellow. Forewings long, about 3 times the length of antennae [Europe]................................................................................. distinctus Uzel *

-. Head constricted just behind eyes; antennal segment III yellowish brown with yellowish base and apex, V brown with yellowish base; forewings short, a little longer than antennae [ Japan].............................. nonnae Haga & Okajima*

Figures

FIGURES 1 – 9. Ctenothrips guizhouensis. Female. (1) Dorsal view of body. (2) Right antenna. (3) Dorsal view of head. (4) Dorsal view of mesonotum and metanotum. (5) Meso- and metasternum furca. (6) Dorsal view of pronotum. (7) Abdominal tergites VIII – X and posteromarginal comb. (8) Abdominal sternite VII and posteromarginal setae. (9) Right forewing.