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 fletcheri 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. 



