from the Seychelles Islands and Rodrigues. 291 
its very strongly pilose fore-femora, and EL. crassiceps, Karny, 
by its short head ; but EH. sanguineus wants definitely fixing 
from New Guinea material, as also EH. steinskyi from Ceylon. 
I have very little doubt that the genus is rich in species, but 
it is not desirable to describe further species till the type is 
better known. These remarks do not apply to a second 
group recognized by the simple fore-coxz, containing coxalis, 
Bagn., and flavipes, Bagn., and in view of this second group 
it may be desirable to regard Ormothrips inermis as belonging 
to a third division of the genus Ecacanthothrips. 
Divisions of the Genus Ecacanthothrips. 
1. Fore-femora with a large tooth near base 
and another at apex within (¢) ora 
short tooth near the middle(Q). Fore- 
cox either produced or simple in the ¢. 2. 
Fore-femora and fore-coxze simple in both 
BeKes (OrMocnyvypay vasa cccnce alain «4 « Group 3 (containing 7- 
2. Fore-coxe produced in the ¢, and more Lermets, Buffa). 
or less bent distally, set with several 
BUOHG RGGH (arels dh Wtrs ciara sy oth HY aves Fe ninie Group 1 (containing san- 
guineus, Bagn., steinskyi, Schmutz, 
‘Asie Bagn., and crassiceps, Karny), 
Fore-coxe simple in both sexes .,...... Group 2 (containing cov- 
|alis, Bagn., and flavipes, Bagn.). 
EXPLANATION OF THE PLATES. 
Puate IV. 
Fiys, 1-2a. Tryphactothrips rutherfordi (Bagn.), 2 , from Ceylon. 
1. Head and pronotum. x 120. 
2. Right fore-wing. x 60. 
2a. Spine on fore-wing. x c, 200. 
Fig. 26. Tryphactothrips brevisetis, sp.n., 2., from Mahé, 
26. Spine on fore-wing, x 200. 
Figs. 3-5. Brachyurothrips anomalus, gen. et sp. n., 2, from Mahé, 
3. Head, pronotum, part of pteronotum, and left fore-wing. 
x 60. 
4, End of abdomen. x 60. 
5. Right fore-wing. x 40, 
Fig. 6. Adiaphorothrips brevis, sp. n., ¢, from Mahé, 
6. Head, right antenna, pronotum, and right leg. x45, 
Norr.—Figure 6 is made from a dried carded specimen before it was 
transferred to a microscope-slide, 
20* 
