Body mainly brown, abdominal tergites VI and X yellow; fore wing dark with sub-basal area pale; antennal segments I–III and base of IV largely pale; fore and mid legs largely pale, hind femora brown but tibiae yellow. Head with occipital apodeme confluent with posterior margin of eyes; ocellar area with irregular transverse striae, setal pair III on anterior margins of ocellar triangle; antennal segment IV with constricted apical neck and elongate sensorium extending to mid-point of V. Pronotum striate-reticulate, with many short longitudinal lines between the striae, pronotal blotch well-defined; mesonotum and metanotum striate with markings between the striae; metasternal plate with shallow anterior emargination. Fore wing second vein with no setae. Abdominal tergites II–VI with comb of microtrichia absent medially, VII with minute teeth, VIII with comb of long microtrichia; tergite IX with 2 pairs of mid-dorsal setae; sternites apparently with discal microtrichia medially.
Male not known.
Intraspecific variation
Not recorded.
Genus and similar species information
Almost 120 species are included in Neohydatothrips, most from tropical countries (Mound & Tree 2009). All of them have the abdominal sternites and lateral thirds of tergites covered by rows of fine microtrichia, with many of them being bicoloured and with banded fore wings. Neohydatothrips novateutoniae is similar to N. ruginosus in colour and sculpture, but has the fore wings uniformly dark medially and the sense cone on antennal segment IV unusually long. A key to the Neotropical species of Neohydatothrips is provided by Lima & Mound (2016).