236 



bital crossvein. 1 A joins the hind margin a little 

 before fork of media. At fork of radial sector a 

 very small dark spot, and at fork of media a large 

 white spot. Pterostigma subrectangular, 3 to 3| 

 times longer than broad, yellowish, connected with 

 the radial sector by two crossveins. Bristles on the 

 margins of the wings at base. 



Forewing 19 mm; hindwing 17 mm. 



Mus. Vienna: 1 J, „Urwald Beni", Oct. 10 (Grauer 



leg.)- 



14. B. nwntaniis Wee\e, Sjöstedts Kilim.-Meru Exp., Neur., 



p. 21, 1909. 



15. B. sjöstedti Weele, loc. cit, p. 22, 1909. 



16. B. walked n. sp. 



Head, rostrum and maxillary palpi yellowish 

 brown; a blackish crossband between the eyes 

 above the insertion of antennae encloses the ocelli. 

 Antennae blackish brown; the basal joints pale 

 brown. Thorax pale brown; mesothorax with four 

 black spots in its front half; metathorax with two 

 black spots on its front margin. Abdomen yello- 

 wish brown. Femora and tibiae yellowish brown ; 

 tip blackish; joints of fore and intermediate tarsi 

 brown, becoming blackish brown towards the tip ; 

 joints of hind tarsi dark brown, blackish towards 

 apex. Hind femora rather incrassate in the middle. 

 First joint of hind tarsus as long as second and 

 third joint united, which are equal; fourth joint two 

 thirds of first; fifth joint as long as fourth; claws 

 very small. Wings very long and slender with ellip- 

 tical apex. Membrane hyaline, hardly with any yel- 

 lowish tinge; nervures dark brown, in the apical 

 . part of wings narrowly margined with brown. No 

 apical crossvein in costal area. Subcostal crossvein 

 between origin and fork of radial sector, in fore- 

 wing nearest to the fork, in hindwing nearest to 



