new or little-known Species of Libelluline. 233 
3. Perithemis mooma, sp. n. 
Exp. al. 31 millim. 
Female.—Head dull yellow, frontal tubercle brown ; thorax 
reddish brown, with a long pale green oval spot on each side 
above ; sides greenish white, with a reddish-brown stripe on 
the principal suture. Abdomen yellow, the carine black, and 
a broad zigzag brown stripe above, so that the upper surface 
might either be regarded as brown with yellow markings or 
yellow with brown markings. Fore wings with seven ante- 
nodal and four postnodal cross nervures, the last antenodal and 
first postnodal not continuous; hind wings with five ante- 
nodal and four postnodal cross nervures, the first postnodal 
not continuous ; triangles free, followed by two rows of post- 
triangular cells, increasing ; subtriangular space consisting of 
one cell; pterostigma brownish yellow, between black ner- 
vures. Wings hyaline, with connected brown markings, 
extending from the base along the lower subcostal space, and 
then spreading upwards to the costa on both sides of the 
nodus and to within two or three cells of the pterostigma, and 
downwards across the sectors of the arculus, and between 
them to their origin, filling the triangle in the fore wings, and 
extending to the first cell between its sectors on the hind wings; 
another curved and pointed tooth extends from below the 
nodus across the posttriangular space as far as the lower sector 
of the arculus. 
This curious species, which is perhaps most nearly allied to 
P. tenera, Say, has a striking resemblance to the African 
genus Palpopleura. 
4. Cannaphila insularis. 
Cannaphila insularis, Kirby, Trans. Zool. Soc. Lond. xii. p. 341, pl. liii. 
fig. 1, pl. lvii. fig. 9 (1889). 
There are three females and one male in the Dublin Mu- 
seum from Jamaica; the former differ little from the types 
of the species from Haiti, the male is pulverulent blue. There 
are sometimes two cross nervures in the lower basal cell of the 
fore wings on one side; there are always two on the hind 
wings on both sides. 
Ann. & Mag. N. Hist. Ser. 6. Vol. iv. 16 
