Species-richness in Neotropical Sericothripinae (Thysanoptera: Thripidae) Author Lima, Élison Fabrício B. Author Mound, Laurence A. text Zootaxa 2016 4162 1 1 45 journal article 10.11646/zootaxa.4162.1.1 e369a54d-eaac-4bda-97c6-00b28be9b359 1175-5326 263866 92A1EA19-4981-4BB4-B5BC-6EF7473F7257 Neohydatothrips sulcus sp. n. ( Figs 41 , 63 ) Female macroptera . Colour: body mainly yellow with ocellar area shaded light brown, antecostal ridges on tergites II–VI brown with yellowish brown areas posterolaterally; antennal segment I yellow, II yellowish brown, III light brown with base and apex brown, IV light brown on basal half but brown on apical half ( Fig. 63 ), V brown with base light brown, VI–VIII brown; fore wing uniformly pale brownish grey. Structure: Occipital apodeme not touching posterior margin of compound eyes; ocellar setae pair III on external margins of ocellar triangle, ocellar triangle smooth ( Fig. 41 ); pronotum closely striate with indistinct blotch ( Fig. 41 ); mesonotum striate, median setal pair anterior to the lateral; metanotum anterior half transversely striate, posterior half longitudinally striate, two pairs of setae on anterior margin. Metasternal plate with very shallow anterior emargination; fore wing second vein with two setae; tergites II–VI with comb of microtrichia incomplete medially, comb complete on VII–VIII; tergite IX with 2 pairs of mid-dorsal setae; sternites III–VII with no microtrichia medially. Measurements ( holotype female in microns): Body length 985, Head length 65, width 148; ocellar setae III length 20. Pronotum length 110, width 175. Fore wing length 600. Antennal segments I–VIII length 20, 33, 43, 38, 35, 38, 5, 8. Male macroptera . Similar to female, but smaller; sternites without pore plates. Measurements ( paratype male in micros): Body length 720, Head length 53, width 130; ocellar setae III length 13. Pronotum length 98, width 135. Fore wing length 470. Antennal segments I–VIII length 15, 30, 40, 29, 24, 26, 3, 5. Material studied . Holotype female. BRAZIL , Rio Grande do Sul State, Santo Antônio das Missões , 1 female from Vachellia caven (labelled as Acacia caven ) 3.ii.2013 ( A. Cavalleri ) ( UFRGS ). Paratypes. BRAZIL , Rio Grande do Sul State, Santo Antônio das Missões , 2 males and 2 females collected with the holotype , 3.ii.2013 ( A. Cavalleri ), Barra do Quaraí , 1 female and 1 male from same host as holotype , 18– 19.ix.2003 ( S.M.J.Pinent ) ( UFRGS ) ; Piauí State, Teresina , 1 female from Caesalpinia pulcherrima , 6.i.2012 ( E.F.B.Lima ) ( UFPI ) . Comments . This new species is similar to N. luculentus and N . zucchi , but has shorter sense cones in antennal segments III and IV. It seems to be associated to Vachellia caven flowers [ Fabaceae ] in southern Brazil , although one specimen was collected from another Fabaceae in the northeast.