190 
Philippine Journal of Science 
1919 
this purpose. It is quite possible, therefore, that some errors 
may exist in the synopsis; notwithstanding this, the key will 
serve as an assistance in future work because of the scattered 
condition of the literature on this subfamily. 
Trioza magna Kuwayama (’10: 59). 
Length of body, 2.2 to 2.6 millimeters; forewing, 4 to 4.5. 
General color green or yellowish green; forewings whitish or 
glass clear ; antennae brown or black ; dorsum and vertex briefly 
and sparsely hairy. 
Head nearly as broad as thorax, not strongly deflexed, vertex 
large, broadly concave, median line deeply impressed in anterior 
half; genal cones as long as vertex, slender and acute, strongly 
divergent; antennae about two and one-half times as long as 
width of head, moderately thick. 
Thorax long and narrow; legs slender, rather long. Fore- 
wings long and narrow, nearly four times as long as broad, acute 
at apex, veins with whitish setae, membrane whitish in color; 
first marginal cell larger than second, radius very long. 
Male (according to Kuwayama) with anal valve about as long 
as genital segment, much broadened midway in lateral aspect; 
forceps simple, about as long as anal valve. Female genital 
segment nearly as long as rest of abdomen, anus large, valves 
subequal in length, dorsal acutely pointed. 
Type locality. — Japan, Hekone, Honshu (Matsumura ) . Phil- 
ippines — Luzon, Baguio, Benguet {Baker), 1 female, 
Trioza fletclieri Crawford (’12: 434). 
One male specimen taken at Singapore {Baker) appears to 
belong to this species, previous representatives of which were 
taken in India. 
Trioza tenuicona sp. nov. Plate III, fig. 2. 
Length of body, 2.2 millimeters; forewing, 4. General color 
pale brown to dark brown or nearly black ; vertex in dark forms 
light brown ; eyes black ; antennae mostly black, basal third some- 
times reddish brown ; legs light brown or sometimes paler ; fore- 
wings clear, veins in distal half conspicuously black, yellowish 
in basal half. 
Head broad, nearly as broad as thorax ; vertex less than half 
as long as broad, median suture sulcate cephalad, bulging on 
each side; genal cones nearly twice as long as vertex, directed 
vertically downward, slender and acutely pointed, not widely 
divergent, sparsely hirsute. Antennae about four times as long 
as width of head, rather thick. 
