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 Hydatothrips guanacastei Mound & Marullo ( Fig. 7 ) Hydatothrips guanacastei Mound & Marullo, 1996 : 161 . Female macroptera . Colour: body mainly brown, tergite VI pale, tergite X yellowish brown also posterior area of metathorax; fore wing brown with pale sub-basal and subapical areas; antennal segments I–II pale, III yellow with apical half light brown, IV brown with basal third light brown, V–VIII brown; fore femora yellow with brown area mid-dorsally, mid femora with apex and basal third yellow, hind femora with base yellow, fore tibiae yellow with suffused brown area medially, mid and hind tibiae brown with base and apex light brown. Structure: Occipital apodeme almost confluent with posterior margin of eyes ( Fig. 7 ), ocellar area transversely striate with internal markings; pronotal striae forming a few long reticles without markings between the major lines, blotch distinct; mesonotum transversely striate, metanotum with transverse striae on anterior half and longitudinal striae on posterior half; fore wing second vein with two setae; posteromarginal comb on tergites II–V with minute teeth medially, VI with medium-sized teeth medially, comb on VII–VIII complete; tergite IX with 2 pairs of mid-dorsal setae; sternites III–VI with two or three rows of microtrichia medially, VII without microtrichia medially. Material studied . Holotype female, COSTA RICA , Guanacaste National Park, Playa Naranja , on Acacia sp. leaves, 3.vi.1989 ( BMNH ) . Comments . This species remains known only by the holotype . It is similar to volcano and sternalis , from which can be distinguished by the character in the key.