Trichromothrips Priesner

Masumoto, Masami & Okajima, Shûji, 2005, Taiwan, with descriptions of four new species and a review of the Trichromothrips group of genera, Zootaxa 1082, pp. 1-27 : 6-7

Genus Trichromothrips Priesner

Trichromothrips Priesner, 1930: 9 ; Bhatti, 1978b: 167; 1999: 1–5, reinterpretation; 2000, 1–65. Type species; T. bellus Priesner by original description and monotypy.

Apothrips Bhatti, 1967: 20 . Synonymized by Bhatti, 1978b: 167.

Dorcadothrips Priesner, 1932: 49 ; Bhatti, 1978b: 167. Synonymized by Bhatti, 1999: 2.

Micothrips Ananthakrishnan, 1965: 18. Synonymized by Bhatti, 1999: 2.

Trichromothrips (Dovithrips) Bhatti, 1999: 2 . Type species; Dorcadothrips flavidus Bhatti, 1978 c by monotypy. Syn. nov.

Female. Macropterous. Body slender and uniformly yellowish white or bicoloured, often vividly coloured when alive. Head often prolonged anteriorly and often strongly constricted behind compound eyes (cf. Figs. 1 , 6 , 22 ); mouth­cone short and rounded at apex with 3­segmented maxillary palpi. Compound eyes more or less bulging. Ocellar setae I absent, setae III situated between hind ocelli or rarely at tangent of anterior margin of hind ocelli, and relatively long. Postocular setae uniserial and five pairs. Antennae 8­ segmented, usually slender, segment I with two dorsal apical setae, III and IV with sensecone forked, III to VI with some microtrichial rows on both dorsal and ventral surfaces (cf, Fig. 7 ). Pronotum smooth medially; two pairs of posteroangular setae usually developed (cf. Fig. 1 ) (no long setae in T. veversae Mound & Masumoto from Australia). Mesonotum with median pair of setae situated near posterior margin or ahead of submedian setae (cf. Figs. 3 , 7 ). Metascutum usually smooth, often weakly sculptured medially; median pair of setae situated at or near anterior margin; campaniform sensilla present or absent. Prosternal ferna undivided. Mesosternum without sternopleural suture; endofurca with spinula. Metasternal endofurca usually without spinula. Metaepimeron with 0 to 2 setae. Fore wing first vein with median long gap in setal row and two setae distally; clavus usually with four (rarely three or five) veinal and one discal setae; posterior fringe hairs wavy. Tarsi 2­segmented. Abdominal terga without ctenidia or posteromarginal craspeda; terga II to VII with three setae (B3–B5 setae) along lateral margin arranged in straight line, usually smooth medially and sculptured laterally (cf. Fig. 4 ); tergum VIII without posteromarginal comb; tergum IX with or without campaniform sensilla (cf. Fig. 10); tergum X without median split; sterna without posteromarginal craspeda, with or without discal setae; sternum II with two or three pairs of posteromarginal setae; sterna III to VII with three pairs of posteromarginal setae; laterotergites without discal setae. Ovipositor developed.

Male. Macropterous or apterous. General structure and colour similar to female. Abdominal tergum IX usually with a pair of posteromarginal processes (drepanae) (cf. Fig. 11 ); sterna III to VIII with numerous scattered, or three to six, glandular areas (cf. Fig. 13 ).

Figures

FIGURES 1 – 3. Trichromothrips elegans n. sp. (female): (1) Head with antennal segment I & pronotum (median pale area on pronotum indicated by dotted lines); (2) Antennal segments II – VIII (right); (3) Mesonotum & metascutum (sculpture line on mesonotum omitted.). Scale bar = 0.04 mm.

FIGURES 6 – 8. Trichromothrips formosus n. sp. (female): (6) Head & pronotum (median pale areas on head and pronotum indicated by dotted lines); (7) Antennal segments I – VIII (right); (8) Mesonotum & metascutum. Scale bar = 0.04 mm.

FIGURES 22 – 24. Trichromothrips taiwanus n. sp. (female): (22) Head & pronotum (median pale area on pronotum indicated by dotted lines); (23) Antennal segments I – VIII (right); (24) Mesonotum (posterior half) & metascutum. Scale bar = 0.04 mm.

FIGURES 4 – 5. Trichromothrips elegans n. sp. (female). Abdominal segments: (4) Terga VII – VIII & laterotergite VII (right side); (5) Terga IX – X (left­dorsal aspect). MD = mid­dorsal seta; sp = spiracle. Scale bar = 0.04 mm.

FIGURES 11 – 14. Trichromothrips formosus n. sp. (male). Abdominal segments: (11) Terga IX – X; (12) Tergum IX (left­dorsal aspect); (13) Sternum VI; (14) Genitalia (left aspect). hy = hypomere; pa = paramere. Scale bar 0.04 mm.