Neohydatothrips sulcus , Lima, Élison Fabrício B. & Mound, Laurence A., 2016

Lima, Élison Fabrício B. & Mound, Laurence A., 2016, Species-richness in Neotropical Sericothripinae (Thysanoptera: Thripidae), Zootaxa 4162 (1), pp. 1-45: 40

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Neohydatothrips sulcus

sp. n.

Neohydatothrips sulcus  sp. n.

( Figs 41View FIGURES 41 – 49, 63View FIGURES 50 – 66)

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. 63View FIGURES 50 – 66), 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. 41View FIGURES 41 – 49); pronotum closely striate with indistinct blotch ( Fig. 41View FIGURES 41 – 49); 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) ( UFRGSAbout 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) ( UFRGSAbout 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.


Universidade Federale do Rio Grande do Sul