WRIGHT—ON LIBELLULID& OF THE SEYCHELLES, 229 
by a thick black nervure. Nineteen to twenty-one postcubital ner- 
vules in the superior wings, seventeen to eighteen in the inferior. 
Yellowish-brown, blackish behind the eyes. Prothorax obscure 
laterally, the posterior lobe slightly sinuated. Thorax with the dorsal 
keel blackish, as well as three lateral bands; a yellow band anteriorly. 
Segments one to seven terminated by a blackish ring, three to seven 
communicating by a yellow ring, eight to ten brown. 
Legs yellowish, the femora with a basal, median, and terminal 
blackish ring. 
Appendices brown, broad, triangular, short; vulvar valvules yel- 
lowish, ciliated, reaching beyond the apex of the abdomen. 
Resembling Podolestes orventalis by the coloration, but differing by 
the size being one-half less, by the reticulation, &c. 
6. Trichocnemis cyanops, 0. sp. 
6. Abdomen 37 millim., inferior wings 25. 
Pterostigma blackish brown, elongate lozenge-shaped, covering 
almost two cellules. Fifteen to sixteen postcubital nervules in the in- 
ferior wings. 
Head black; rhinarium, internal border of the eyes, checks, and 
upper lip blue, the latter bordered with black. Prothorax blackish, 
with a blue lateral spot; the posterior lobe rounded, spotless. Front 
of the thorax blackish brown up to the first lateral suture, with a pale 
posthumeral line; the sides and the underside pale, with a brownish- 
black band, which is dilated at the second suture. 
Abdomen very long and slender, blackish above; first segment 
short, with a black dorsal band; fourth to sixth encircled with livid at 
the base (the circle interrupted at the dorsal crest) ; sides of the eighth, 
ninth, and tenth bluish, the latter very short. 
Legs pale red, with long ciliations; exterior of the femora blackish. 
Anal appendices—superior dull bluish, longer than the tenth seg- 
ment, thick at the base, distant, afterwards compressed, slightly curved 
inwards and downwards near the apex, ciliated ; inferior darker, one-half 
shorter, thick at the base, contiguous, drawn out at the apex into two 
little elevated points. 
$ unknown. 
This species is remarkable for its long pterostigma, blue face, the 
pale humeral line not reaching beyond the hind part of the thorax, and 
terminating before the base, finally by the absence of pale spots at the 
base of the thorax. The inferior anal appendices have not the lower 
internal tooth, as in J. stlenata from the Malayan archipelago. 
7. Trichocnemis bilineata, nu. sp. 
é. Abdomen 36 millim. (¢, 34), inferior wing 22. 
Pterostigma blackish-brown, lozenge-shaped, elongated, covering 
one and a half (¢) or two (¢) cellules. Thirteen to fourteen postcu- 
bital nervules in the inferior wings. 
