Neohydatothrips clavisetis sp. n.

(Figs 19, 48, 69, 78)

Female macroptera. Colour: body dark brown, yellowish only on tergite X, lateral areas of VI (cf. Fig. 78), and anterior margin of pronotum; fore wing dark with pale sub-basal band and diffusely paler median area, clavus with stout black setae; antennal segment I light brown, II pale, III pale medially but base and apex light brown, IV basal half pale apical half brown, V–VIII brown; femora dark brown, tibiae and tarsi yellowish; major setae on wings and pronotum stout and black.

Structure: Occipital apodeme confluent with posterior margin of eyes, ocellar area striate; antennal segments III & IV slender with apex not constricted to a neck; pronotum transversely striate, blotch well-defined with anteromarginal setae irregularly arranged, posteroangular paired setae long and dark (Fig. 19); mesonotum and anterior part of metanotum closely striate; metasternal plate with shallow anterior emargination; fore wing second vein with no setae (Fig. 48); clavus with 4 long veinal setae and one long discal seta (Fig. 69); tergites II–VI with comb of microtrichia absent medially, VI with minute teeth, VII–VIII with comb of long microtrichia; tergite IX with 2 pairs of mid-dorsal setae; sternites apparently with discal microtrichia medially.

Measurements (holotype female in microns): Body length 980, Head, length 58, width 150; ocellar setae III length 10. Pronotum length 165, width 178. Fore wing length 650; clavus setae 75. Antennal segments I–VIII length 17, 30, 49, 46, 36, 36, 10, 9.

Material studied. Holotype female, BRAZIL, Santa Catarina State, Nova Teutônia [Seara], on Solanum, 25.v.1949 (JDH 2044) (USNM).

Paratype female, BRAZIL, São Paulo State, São Carlos, on vine, 15.vi.1948 (JDH 1633) (USNM).

Comments. This is one of the darkest species of Neohydatothrips in South America and, although known only from 2 females collected by Fritz Plaumann in the 1940’s, it is remarkable for the unusually stout black setae on the fore wing clavus and the slender antennae.