1889. ] MR. W. F. KIRBY ON NEW ODONATA. 299 
Genus PskupoGomruus. 
Male. Eyes contiguous, frontal tubercle slightly bifid; labinm 
cleft. Wings long and rather pointed, triangles rather small, free, 
those on the hind wings rather longer than those on the fore wings : 
fore wings with 6-8 cross-nervares in the lower basal cell, and four 
supratriangular nervures: hind wings with 2 or 3 supratriangular 
nervures, and 5 in the lower basal cell; membranule rather large ; 
inner margin concave between this and the anal angle. Abdomen 
with the appendages of the second segment large, upper anal 
appendages about as long as the lower, which is broad and trun- 
cated ; at their base rises a strong vertical conical spine, pointed at 
the apex. 
Probably allied to Cordulegaster, but very distinct from any 
described genus. 
PsEUDOGOMPHUS INSIGNIS. 
Expl. al. 94 millim. ; long. corp. 83 millim. 
Male. Dark brown, tinged with reddish, especially on the face 
and pleura ; vertex punctured, shining with green and violet ; thorax 
green above and on the sides in certain lights; third segment of 
the abdomen yellow. 
Wings yellowish hyaline, darkest at the edges ; pterostigma black, 
covering rather less than 3 cells ; fore wings with 16-18 antenodal 
and 10-12 postuodal nervures ; triangles and subtriangular space 
free. 
Hab, Cameroons. 
ANAX STRIATUS. 
Exp. al. 105 millim.; lat. al. ant. 12 millim.; lat. al. post. 17 
millim. ; long. pter. 3 millim.; long. corp. 75 millim. 
Testaceous yellow; head with the front raised, rugosely-pune- 
tate, and marked with a blackish spot on the summit ; the region of 
the ocelli, the lower edge of the nasus, and all the mouth-parts 
reddish brown, more or less varied with yellow at the sutures. On 
the thorax the septa are very strongly ridged, and are marked with 
black in front and within; there are also four black spots on the 
depressions of the pleura; legs reddish. Abdomen with the first and 
second segments much swollen, the hinder half of the second seg- 
ment with black markings diverging on each side of the carina; the 
following segments with two blackish spots at the base, two smaller 
ones beyond the middle, and an irregular blackish stripe crossing 
the carina before the extremity; the incisions are also marked with 
black in the middle; on the 7th and 8th segments these marks 
become more suffused and irregular, and are not continued further. 
Wings very broad, clear hyaline, the space between the costal and 
subcostal nervures filled up with smoky yellow, very dark at the 
base, and ceasing, like the costal nervure, at the nodus; the lower 
basal cell is also stained with yellow as far as the lower triangle ; 
pterostigma brown, very short. Fore wings with 20-21 antenodal 
