“Stefaniella” orientalis Felt

[Figs 43 a–e]

Stefaniella orientalis Felt, 1921b: 142; Gagné 1973: 491, unplaced to genus.

Material examined. Holotype male, reared from a petiole gall on Lepidagathis javanica Blume at Mt Ungaran, Java, altitude 1200 m. 18-iv-1912, Felt #a3098. The type is mounted uncleared with all body parts present but folded or shriveled.

Description. Male. Wing 1.5 mm long, 0.6 mm wide; R 5 2/3 wing length, C interrupted at juncture with R 5. Flagellomeres 16 on both antennae, first and second fused, trapezoid, necks minute [Fig. 43e]. palpus 2-segmented, first segment 1.5x longer than wide, third 3x longer than wide [Fig. 43d]. Tarsal claws thin, bent at midlength with long, thin tooth, empodia slightly shorter than claws [Fig. 43c]. Terminalia: gonostylus bulbous basally, tapered distally, setulose at basal third and narrow, carinate beyond; cerci triangular; hypoproct bilobed, setulose with few setae apically; mesobasal lobes closely sheathing aedeagus, covered with dense setulae, three setose papillae on each lobe apically; aedeagus triangular in lateral view, without sensoria [Fig. 43b].

Female, pupa, larva unknown.

Remarks. Felt (1921b) tentatively placed the male in Stefaniella, a genus of Palearctic Lasiopterini of 10 species that feed on Chenopodiaceae (Gagné & Jaschhof 2017) . The male does belong to Lasiopterini but one needs females to assign species to genera.

Biology. This species causes a petiole gall on Lepidagathis javanica (Acanthaceae) described by DvLR & DvL (1926, gall No. 1377, Fig. 976 [Fig. 43a]). It is an aggregate, uneven swelling about 10 mm long and 6 mm across. Inside each gall is a small, longitudinal. Hard-walled larval chamber.

Geographical distribution. This species is currently known only from Mt Ungaran, Java where it was found at alt. 1000 m, ix-1910 and 1200 m, 18-iv-1912 (DvLR & DvL 1926; Felt 1921b) .

Addendum