Trichromothrips Priesner 1930
Creators: name: Li, Yajin
name: Li, Zhengyue
name: Zhang, Hongrui
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Thysanoptera
Thripidae
Trichromothrips

description: Key to Trichromothrips species from China
(* indicates species placed in the key from descriptions)
1. Fore wing first vein with complete setae (Fig. 21); abdominal tergites II–VIII with about 4–6 setae in a regular or irregular transverse row.............................................................................. moundi sp.n.
-. Fore wing first vein with median long gap in setal row and two setae distally; abdominal tergites II–VIII without such setae. 2
2. Abdominal sternites with discal setae (Fig. 41)......................................................... indicus
-. Abdominal sternites without discal setae................................................................... 3
3. Fore wing banded with three dark areas, alternating with three light areas (Figs 45, 46).............................. 4
-. Fore wing not banded, uniformly dark or pale at apex (Figs 25, 29).............................................. 5
4. Base of fore wing shaded including anterior margin (Fig. 44); antennal segment III with apical 2/3 brown, IV brown on apical 4/5, V mainly brown except a small basal area (Fig. 48)................................................... falcus
-. Base of fore wing not shaded along anterior margin (Fig. 45); antennal segments III–V yellow at base and brown on apical half (Fig. 49)..................................................................................... trifasciatus
5. Body yellow except head (Figs 36, 37); pronotum (Figs 37, 38) without dark stripe (except antidesmae); abdominal tergites never brown or with brown areas laterally; abdominal sternite II with two pairs of posteromarginal setae................ 6
-. Body bicolored, at least pronotum with dark stripe (Fig. 22); abdominal tergites brown at least on segments VII–IX (Figs 4, 6); abdominal sternite II with three pairs of posteromarginal setae................................................. 11
6. Head strongly constricted behind compound eyes (Fig. 40).................................................. albus
-. Head not strongly constricted behind compound eyes (Fig. 27).................................................. 7
7. Abdominal tergites with brown areas laterally (Figs 4, 6, 9).................................................... 8
-. Abdominal tergites almost yellowish white (Figs 3, 10)........................................................ 9
8. Abdominal tergites II–VIII brown medially (Fig. 9).................................................... crispator
-. Abdominal tergites V–VI with a coarse-grained dark area on each side.................................... xanthius *
9. Head and pronotum with dark stripe laterally (Fig. 27)........................................... antidesmae sp.n.
-. Head and pronotum without dark stripe laterally............................................................ 10
10. Head pale brown between compound eyes; postocular III setae minute metanotal campaniform sensilla absent.... assamensis
-. Head fully brown; postocular setae well-developed; metanotal campaniform sensilla present..................... fragilis
11. Mesonotum with median and submedian setae near posterior margin (Fig. 27).................................... 12
-. Mesonotum with median setae in front of submedian setae (Fig. 24)............................................ 13
12. Abdominal sternite VII with posteromarginal setae arising at posterior margin......................... trachelospermi *
-. Abdominal sternite VII with posteromarginal setae arising in front of posterior margin........................ taiwanus *
13. Head and pronotum with dark lateral margins; male with 6–8 pore plates on abdominal sternites III–VII........... priesneri
-. Head dark brown or with small median area slightly paler along posterior margin dorsally, pronotum with dark lateral margins; male with 5 pore plates or with numerous irregularly scattered circular pore plates on abdominal sternites III–VII (guizhouensis male unknown).................................................................................... 14
14. Head uniformly dark brown; pronotum with dark brown lateral stripes, median triangular pale area not reaching anterior margin (Fig. 22)............................................................................ guizhouensis sp.n.
-. Head dark brown, often with a small median area slightly paler along posterior margin dorsally; pronotum with dark brown lateral stripes, median triangular pale area reaching anterior margin (Fig. 36)....................................... 15
15. Abdominal tergite VIII with two small setae in front of posteroangular setae, tergite IX without CPS; male sternites III–VII with numerous irregularly scattered circular pore plates.................................................. elegans
-. Abdominal tergite VIII with one small setae in front of posteroangular setae, tergite IX with one pair of CPS; male sternites III–VII with five pore plates....................................................................... formosus
description: Published as part of Li, Yajin, Li, Zhengyue & Zhang, Hongrui, 2019, Trichromothrips genus-group (Thysanoptera, Thripidae) from China, with descriptions of three new species and ten new records, pp. 79-92 in Zootaxa 4544 (1) on pages 80-81, DOI: 10.11646/zootaxa.4544.1.3, http://zenodo.org/record/2618149