Trichromothrips
Creators: name: Masumoto, Masami
name: Okajima, Shûji
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Thysanoptera
Thripidae
Trichromothrips

description: Key to genera of Trichromothrips genus­group   
 1. Metathoracic furca elongated and reaching to mesothorax......... Trachynotothrips   
­. Metathoracic furca normal and not reaching to mesothorax.................................. 2  
 2(1) Head, pronotum, and lateral and median areas of abdominal terga with closely spaced lines of sculpture; abdominal terga with about five setae in irregular or regular transverse row in lateral area........................................................... Octothrips   
­. Head and abdominal terga without such lines of sculpture, sometime pronotum with such lines of sculpture; abdominal tergal chaetotaxy different...................... 3  
 3(2) Ovipositor reduced, very weak and without teeth; antennal segments III and IV with simple sense­cones........................................................... Takethrips (in part)   
­. Ovipositor distinctly developed, with teeth; antennal segments III and IV with forked or simple sense­cones.................................................................................. 4  
4(3) Antennal segments III and IV with simple sense­cones......................................... 5  
­. Antennal segment IV with forked sense­cone........................................................ 6  
 5(4) Prosternal ferna divided; pronotum with posteroangular setae similar to posteromarginal setae........................................................................................ Takethrips   
 ­. Prosternal ferna not divided; pronotum with posteroangular setae much longer than posteromarginal setae................................................... Yoshinothrips (in part)   
 6(4) Antennal segment III with simple sense­cone; abdominal terga III to VII each with 12 setae............................................................................................ Yoshinothrips   
­. Antennal segment III with forked sense­cone; abdominal terga III to VII each with 10 setae at most....................................................................................................... 7  
 7(6) Mesothoracic sternopleural suture present although not reaching anterior margin; abdominal tergum VIII with paired ctenidium­like microtrichial rows mesad of spiracle................................................................................................... Cricothrips   
­. Mesothoracic sternopleural suture absent; abdominal tergum VIII without such microtrichial rows................................................................................................... 8  
 8(7) Pronotum with a pair of elongate feather­like posteroangular setae.. Pteridothrips   
­. Pronotum without such posteroangular setae......................................................... 9  
9(8) Ocellar setae I present (more than two pairs of anteocellar setae)....................... 10  
­. Ocellar setae I absent (only one pair of anteocellar setae)................................... 11  
 10(9) Pronotum with closely spaced transverse striae; prominent body setae slender in both sexes...................................................................................... Neocorynothrips   
 ­. Pronotum with reticulations bearing internal wrinkles; prominent body and fore wing setae fan­shaped in female but slender in male.................. Watanabeothrips   
11(9) Prosternal ferna not divided at middle.................................................................. 12  
­. Prosternal ferna divided at middle........................................................................ 13  
 12(11) Pronotum with one pair of long posteroangular setae; fore wings with costal setae greatly elongate, about 2.3–3.3 times as long as width of wing at middle............................................................................................................................. Laplothrips   
 ­. Pronotum with two pairs of long posteroangular setae or with no long setae; fore wings with costal setae less than 1.5 times as long as width of wing at middle............................................................................................................. Trichromothrips   
 13(11) Pronotum almost smooth, without closely spaced striae..................... Okajimaella   
­. Pronotum with distinct closely spaced transverse striae....................................... 14  
 14(13) Pronotum rectangular, with posteroangular setae longer than posteromarginal setae; metascutal sculpture transverse...................................................... Paithrips   
 ­. Pronotum trapezoidal, with posteroangular setae almost as long as posteromarginal setae; metascutal sculpture longitudinal.................................... Simulothrips
description: Published as part of Masumoto, Masami & Okajima, Shûji, 2005, Taiwan, with descriptions of four new species and a review of the Trichromothrips group of genera, pp. 1-27 in Zootaxa 1082 on pages 5-6, DOI: 10.5281/zenodo.170408