Dragonjlies ft'om the Seychelles. 275 



AlloUstes differs from Podolestes by the less emarginated 

 lower lij), by the bihd claws, by the more strongly petiolated 

 wings, and by one more supplementary sector between the short 

 sector and the ultranodal. 



It differs from both neighbouring genera by the very long 

 quadrilateral extending from the second antecubital as far as 

 the nodus ; in this character it has analogy only with Para- 

 phlehia (from Mexico), which belongs (as ^oq^a Allolestes) to the 

 legion of Podagrion. 



5. Allolestes M^Lachlani, n. sp. 



? . Abdomen 23 millim., inferior wing 20. 



Wings hyaline. Pterostigma brown, darker in the centre, 

 encircled by a thick black nervure. Nineteen to twenty-one 

 postcubital nervules in the superior wings, seventeen to eighteen 

 in the inferior. 



Yellowish brown, blackish behind the eyes. Prothorax ob- 

 scure 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 ter- 

 minal blackish ring. 



Appendices brown, broad, triangular, short ; vulvar valvules 

 yellowish, ciliated, reaching beyond the apex of the abdomen. 



Resembling Podolestes onentalis by the coloration, but dif- 

 fering by the size being one-half less, by the reticulation, &c. 



6. Trichocnemis cyanops^ n. sp. 



^ . Abdomen 37 millim., inferior wings 25. 



Pterostigma blackish brown, elongate lozenge -shaped, cover- 

 ing almost two cellules. Fifteen to sixteen postcubital nervules 

 in the inferior wings. 



Head black ; rhinarium, internal border of the eyes, cheeks, 

 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 brownisli-black band, which is dilated 

 at the second suture. 



Abdomen very long and slender, blackish above ; first seg- 

 ment short, bluish, with a black dorsal band ; fourth to sixth 

 encircled with livid at the base (the circle interru])ted at the 

 dorsal crest) ; sides of the eighth, ninth, and tenth l^luish, the 

 latter very short. 



