298 MR. W. F. KIRBY ON NEW ODONATA. [May 21, 
AGRIONID.%. 
CALOPTERYGINE. 
Saphotpulchella, sw. 8) (8 e251 ocd -wladseshen ance alton Cameroons. 
AGRIONIN”, 
Tatocnemis (g. n.) Malgassicd, W. 8.......s0ecceeee eee Madagascar. 
PP OCOSTLOTD GTAGIAB: ITs Siva GAY. Bs SEN Saale aoe aetee Menado, Celebes. 
Usasies Wallace May, «.Lestesmeseseys< teu acek ne Rae Sarawak, Borneo. 
ORTHETRUM CAMARENSE. 
Exp. al. 22 millim.; long. corp. 49 millim. 
Male. Black, vertex metallic blue ; abdomen inflated at base, with 
the third segment pulveruient blue. Wings brownish hyaline: fore 
wings with 19 antenodal and 14 postnodal cross-nervures; the 3 
first postnodals not continuous; triangle traversed by one or two 
cross-nervures ; one supratriangular nervure; 3 cells in the sub- 
triangular space ; three rows of post-triangular cells, increasing, 
commencing on one side with four. Hind wings with 14 antenodal 
and 13-14 postnodal cross-nervures, the base tinged with smoky 
yellow, the membranule dark smoky brown, and a basal stripe of the 
same colour in the second costal space as far as the third cross- 
nervure, and another in the lower basal cell, shorter, and not ex- 
tending to the base of the triangle, which is traversed, though there 
are no supra-triangular neivures on the hind wings. ‘Tips of all 
the wings slightly clouded with brown beyond the pterostigma ; 
appendages of 2nd segment large; anal appendages black, about as 
long as the last two segments (the lower one as long as the others) 
and of the ordinary form. Pterostigma dark brown, covering 3 or 
4 cells. 
Hab. Cameroons. 
Allied to O. albistyla, Selys, from which the darker wings and 
black appendages will abundantly distinguish it. 
AR THRIAMANTA REZIA. 
Long. corp. 27 millim.; exp. al. 50 millim.; long. pter. 2 
millim. 
Male. Size, shape, and neuration of the Indian 42. brevipennis, 
Ramb., except that the sectors of the arculus rise from a short but 
distinct stalk. The left fore wing has two cross-nervures instead of 
one in the lower basal cell, and the triangle of the right fore wing is 
traversed, and that of the left free. 
Body reddish above (probably bright red when living), pectus and 
pleura inclining to green, legs black, femora greenish beneath. Ab- 
domen with the second and third segments carinated; the dorsal 
carina black on the fourth and following segments. Anal appendages 
as long as the 8th segment ; lower appendage very broad, spatulate. 
Wings hyaline; pterostigma olive, between black nervures; hind 
wings strongly and fore wings slightly tinged with yellow at the 
base ; a dark streak in the lower basal cell, commencing beyond the 
base, and filling up about two fifths of the length of the cell. 
Hab. Madagascar. 
