Frankliniella minuta ( Moulton, 1907 )

Munir-Zaki, Abdul M., Ng, Yong-Foo, Mound, Laurence A., Low, Van-Lun & Azidah, Abdul Aziz, 2024, Frankliniella minuta (Moulton) (Thysanoptera: Thripidae): an American species newly recorded in Asia, with a key to Frankliniella species from Malaysia, Journal of Insect Biodiversity and Systematics 10 (2), pp. 207-214 : 208-209

Frankliniella minuta ( Moulton, 1907)

Euthrips minutus Moulton, 1907:56 ; Holotype, deposited in the California Academy of Sciences and collected from grass at Berkeley , California on 1 st March 1906.

Materials Examined: 45♀♀, 14♂♂, MALAYSIA: Selangor, MARDI Serdang [2°59'01.8"N 101°41'47.7"E], on T. procumbens capitula ( Asteraceae ), coll.: Abdul M. Munir-Zaki ; 2♀♀, 1♂, 9.ix.2020; 2♀♀, 16.xii.2020; 1♀, 3.iii.2021; 3♀♀, 17.iii.2021; 1♀, 7.iv.2021; 1♀, 21.iv.2021; 1♀, 28.iv.2021; 15♀♀, 5♂♂, 24.x.2021; 10♀♀, 4♂♂, 31.x.2021; 8♀♀, 4♂♂, 7.xi.2021 (in MZUM) ; 1♀, 24.x.2021 (in CIS-UKM).

Diagnosis. Female (macroptera): Body brown ( Figs 1A–E, 2A–C), all legs brown, except foretibia and tarsi yellow ( Fig. 1A); antennal segments uniformly brown ( Fig. 1B); forewings slightly uniformly shaded ( Fig. 2A). Antennae 8-segmented, segments III–IV with forked sensoria ( Fig. 1B). Head wider than long; areas in front of first ocellus and ocellar area smooth, vertex with fine transverse striations ( Figs 1A, 1C); head with 3 pairs of ocellar setae, S2 arising near margins of compound eyes, S3 short (about as long as the diameter of hind ocelli), arising outside the ocellar triangle; 5 pairs of short postocular setae, S1 as long as the diameter of hind ocelli. Pronotum short, wider than long, sublateral area smooth, with more than 20 short scattered discal setae ( Figs 1A, 1C); without anteroangular setae; with 2 pairs of long posteroangular setae, posterior margin with 7 pairs of setae, S5 and S7 longer than others. Mesonotum with a few weak transverse striations; anterior campaniform sensilla present ( Fig. 1D). Metanotum with irregular reticulate medially, lateral areas with longitudinal lines; with 2 pairs of setae ( Fig. 1D), median setae slightly longer than submedian setae, all setae arising at anterior margin, without campaniform sensilla ( Fig. 1D); mesofurca with metafurca without spinula ( Fig. 1E). Forewing first vein complete with 18–20 setae; second vein complete with 10–11 setae; forewing clavus with 6 veinal and 1 discal setae ( Fig. 2A). Abdominal tergites V–VIII with a pair of lateral ctenidia; weakly developed on IV, positioned anterolaterally to spiracle on VIII ( Fig. 2B). Tergite VIII with a complete posteromarginal comb of long and slender microtrichia ( Fig. 2B). Sternites III–VII without discal setae, with 3 pairs of marginal setae; sternite VII with S1 arising in front of posterior margin ( Fig. 2C).

Measurements (in micrometer). Female: Body length 1300. Head, length/width 101/137. Antennal segments III-VIII lengths 34,32,25,36,6,11. Pronotum length/width 108/172. Fore wing length 559. Metanotum length 61. Tergite X length 56.

Male (macroptera). Similar to female; body pale; abdominal sternites VI–VII with oval-shaped pore plates ( Fig. 2D). Sternite VI pore plate width 35.