620 PROCEEDINGS OF THE ACADEMY OF [NoV., 



in each wing; in fore wings the anal is connected three or four times 

 to cubital fork. Expanse 40-46 mm. 

 From Port Darwin, N. Australia. 



Acratoleon n. gen. 



Similar to Paraglenurus, but claws not as long and more curved; 

 spurs about as long as four tarsal joints. Legs slender, the tibia 

 about as long as the femur. Antennae long, hardly diameter apart 

 at base ; palpi very short. Wings moderately Inroad at stigma, outer 

 margin not sinuate, hind wings a little longer than front pair, one 

 cross-vein in hind wings before the radial sector, about seven such 

 cross-veins in the fore wings; the radial sector arises much before 

 the cubital fork. 



Acratoleon flavum n. sp. Pi. XXVIII, fig. 6. 



Pale yellowish; a dark mark each side under antennae, a dark 

 spot each side on vertex; palpi all pale; antennae pale yellow, tip 

 dark; pronotum pale, a dark interrupted stripe near each margin, 

 broader behind; thorax pale, dark streak over bases of wings, pleurae 

 with large dark spot under fore wings, a smaller spot under hind 

 wings. Abdomen pale, tips of segments dark. Wings hyaline; 

 veins pale yellow, those behind radius marked with dark at ends of 

 the cross-veins, cross-veins nearly all dark and mostly margined 

 with dark, a dark mark above in front of stigma, outer margin to the 

 outer forkings mostly faintly dark, and dark cloud over end of anal; 

 in hind wing venation similar to fore wing, and with two dark streaks 

 near tip of wing, one on the anterior margin. Legs pale yellow, 

 with black liristles, spurs and claws pale. Pronotum one and one- 

 half times as long as broad, a little narrowed in front; legs slender, 

 spurs very long and nearly straight, almost reaching to last joint, 

 basal joint much shorter than the fifth; hind wings longer than fore 

 wings and a little more narrow; fore wings broad at stigma and 

 rather short beyond, costals mostly simple, seven cross-veins before 

 radial sector, about eight branches of radial sector, 28 radial cross- 

 veins, anal connected four times to cubital fork in fore wings, only 

 twice in hind wings. Expanse, fore wings, 65 mm. 



From Salamo Archipel., Shortlands Island (C. Ribbe). Type in 

 Berlin Museum. 



This new genus is placed in the following table of the genera of 

 the Indo- Australasian region. In this table a hitherto unused 

 character, the condition of the anal veins in the fore wings, is con- 

 sidered of prime importance. (PI. XXVIII, figs. 20, 21, 22, 23, 24.) 



