356 The Philippine Journal of 'Science 1920 
{Baker) which appears almost certainly to be identical with 
Kirkaldy’s Nesiope ornata, of Fiji. 
Tyora hibisci Froggatt and T. indica Crawford should be 
referred to Mesoliomotoma, a genus erected in 1907 by Kuwa- 
yama for a species undoubtedly congeneric with the two men- 
tioned above. Udamostigma was proposed by Enderlein in 1910 
for Froggatt’s T. hibisci, but Mesohomotoma has the right of 
priority. 
Genus TKIOZA Foerster 
The genus Trioza is not abundantly represented in the Old 
World Tropics. The members of this genus have the hind tibiae 
unspurred and the basal tarsus of the hind legs without apical 
clawlike spines; in the forewings the basal vein forks at one 
point into three veins. Megatrioza is a common genus in the 
Palseotropics, differing from Trioza chiefly in the armature of 
the hind tibiae. It is a curious fact that several other palaeo- 
tropical genera of Triozinae have the hind tibiae more or less 
armed as in Megatrioza. 
Two closely allied but distinct species in Borneo have certain 
Trioza characters, but still are not typical members of that 
genus. Provisionally, however, they may be grouped in Trioza. 
Trioza insula sp. nov. Plate 1, fig. 2. 
Length of body, 2.3 millimeters (female) ; forewing, 3. Gen- 
eral color light brown, eyes and part of vertex adjoining eyes 
black, a black spot on mesopleura. Head short in dorsal aspect, 
vertex smooth, without depressions, rounded foreward and down, 
in front extending down narrowly on each side and beyond front 
ocellus between bases of genal cones. Genal cones half as long 
as vertex, conical, subacute, divergent. Antennae about twice 
as long as width of head, moderately stout. 
Thorax smooth, surface reticulately marked. Hind tibiae with 
a very small spur at base and three spines at apex. Forewing 
long and narrow, acutely pointed, hyaline, with a brown stripe 
along posterior margin from claval suture to apex; media and 
cubitus not forking from basal trunk at same point with radius ; 
radius short. Hind wing a little more than half as long as 
fore wing. 
Female genital segment nearly as long as rest of abdomen, 
subacute at apex. 
Borneo, Sandakan {Baker), 1 female. 
