192 SHORT NOTES. 
Upper pair flattened a little from side to side with a 
terminal downward directed hook and at the middle of their 
lengtha minute ventral hook. = itn 
?. Hind-wing 48 mm. Abdomen 50 mm. Wings 
hyaline, tinged with brownish yellow most strongly marked at 
the base of the wings as far as the triangle, along the costal 
margin, and from the nodus obliquely to the apex of the wing. 
Discoidal triangle of both hind-wings divided into 3 cells 
by 3 nervules meeting at the centre of the triangle; followed 
by 3 rows of cells. 
Six nervules in the supra Bee space 3 or 4 nervules 
in basilar space. 
Anal loop contains 10-11 cells. 
23 antenodal, 11 post nodal nervules on front wing. 
Other details of neuration as in male. Colouring exactly as in 
male. 
Sarawak: Mt. Matang and near Kuching (Sar. Mus.). 
Orogomphus splendidus, Selgs? 1 9° 
2. Hind-wing 47 mm. 
Abdomen 63 mm. 
Wings hyaline marked with reddish eon at base to level 
of end of basilar space. Apices also reddish brown from half 
way between Dlerosiems and nodus to apex on front wing, a 
little less on hind-wing. 
Superior side of leeoudal triangle of hind-wing equal to 
internal side: outer side longer. 
Discoidal triangle of all four wings divided into 3 cells; 
followed in the front-wings by 2 rows and in the hind-wings 
by 4, then by 3 rows of cells. 2 nervules in basilar space, 
3 on one hind-wing. 
26 antenodals, 12 post nodals on front wing. 
17 to 20 cells in anal loop. 
Colour black. Abdomen entirely black except for a small 
lateral yellow mark on segments 1 and 2 and a yellowish red 
terminal ring on 2, marking on head and thorax similar to 
those of O: dyak but of a duller yellow. 
Jour. Straits Branch 
