LEFIDOPTERA HETEROCERA. 1693 



Genus BOSAEA. 



Fcem. Corpus gracile. Proboscis brevis. Palpi porrecti, 

 validi, capitis latitudine non longiores ; articulus 3us conicus, 2i 

 dimidio longior. Antennae breves. Abdomen alas posticas sat 

 superans. Pedes laeves, breves, graciles. Alae anticae breviusculae, 

 latiuscula?, acutae, costae dimidio basali valde dilatato. 



Female. Body slender. Proboscis short. Palpi porrect, 

 stout, not longer than the breadth of the head ; third joint conical, 

 less than half the length of the second. Antennae short. Abdomen 

 extending rather beyond the hind wings. Legs smooth, short, 

 slender ; spurs moderately long. Wings rather short and broad. 

 Fore wings acute ; costa convex and very much dilated for nearly 

 half the length from the base ; exterior border almost straight, 

 rather oblique. 



BoSARA DILATATA. 



Fcem. Fuscescente-cinered ; alee lineis fuscescentibus denticulatis 

 lineisque plurimis e punctis obscurioribus. 



Female. Brownish cinereous. Wings with seven or eight 

 denticulated brownish transverse lines, which are accompanied by 

 darker brown points. Length of the body 3 lines ; of the wings 

 7 lines. 



Borneo. In Mr. Saunders' collection. 



B OSAKA TURGID AT A. 



Mas. Cinereo-fusca ; palpi porrecti, caput perpaullo superantes ; 

 antenna robustce ; abdomen alas posticas paullo superans ; alee 

 lineis duabus undulalis lineaque submarginali denticulata 

 albidis ; anticce costa basi valde dilatata. 



Male. Cinereous-brown. Palpi porrect, extending very little 

 beyond the head. Antennae stout. Abdomen extending a little 

 beyond the hind wings ; apical tuft very small. Legs slender. 

 Wings with two whitish undulating lines, one antemedial, the other 

 postmedial ; a whitish denticulated submarginal line, less distinct 

 than the two preceding lines; marginal festoon black; fringe cine- 

 reous. Fore wings acute ; costa much dilated near the base ; exte- 



j xior border convex, very oblique. Length of the body 3J lines ; of 

 | the wings 8 lines. 



j Borneo. In Mr. Saunders* collection. 



p2 



