Baenothrips

Mound, Laurence A. & Wells, Alice, 2023, Endemism among Lord Howe IslandThysanoptera, with new species of Baenothrips (Phlaeothripidae) and Scirtothrips (Thripidae), Zootaxa 5228 (1), pp. 81-91 : 82-83

Key to Baenothrips species in Australia

1. Metathoracic epimera each with prominent lateral seta ( Fig. 1 ); mesosternal furca present medially; [mid-dorsal pair of anal setae about 0.5 as long as lateral 2 pairs].............................................................. moundi

-. Metathoracic epimera without a stout seta ( Fig. 2 ); mesosternal furca present only laterally........................... 2

2. Only 2 pairs of long anal setae, mid-dorsal pair reduced to minute papillae less than 10 microns long; median pair of anterior cephalic setae scarcely longer than antennal segment III, lateral 2 pairs equal to length of antennal segment VI ( Fig. 3 ); compound eye with no small facets mesad to row of 3 large facets, ventrally usually without a small facet [head and pronotum brown, abdomen uniformly but variably lighter brown with tube yellow]................................... caenosus

-. All 3 pairs of anal setae long, but mid-dorsal pair scarcely one-third as long as lateral pairs; median pair of anterior cephalic setae about as long as antennal segments III+V, lateral 2 pairs at least 1.5 times as long as antennal segment VI ( Figs 4, 5 ); compound eye, mesad of 3 large facets, with row of 4 or 5 small facets, ventrally with one small, isolated facet [Lord Howe Island].............................................................................................. 3

3. Head largely yellow with anterior and anterolateral margins light brown ( Fig. 4 ); anal setae mid-dorsal pair about 0.3 times as long as tube............................................................................... bulbosus sp.n.

-. Head and pronotum uniformly dark brown ( Figs 2, 5, 6 ); anal setae mid-dorsal pair about 0.5 times as long as tube........ 5

5. Fore femora and tibiae uniformly dark brown..................................................... goweri sp.n.

-. Fore femora and fore tibiae uniformly pale, fore tibiae rarely weakly shaded............................. leukos sp.n.

Figures

FIGURES 1–13. Baenothrips species. Metanotum and tergites I–II 1–2: (1) moundi; (2) goweri. Head 3–7: (3) caenosus; (4) bulbosus; (5) goweri; (6) leukos; (7) moundi. Antenna 8–11: (8) caenosus; (9) bulbosus; (10) goweri; (11) moundi. Tergites IX–X: (12) bulbosus; (13) moundi.