238 ' 



27. B. banksi n. sp. 



Head yellowish brown; rostrum yellowish brown 

 with darker lateral margins; maxillary palpi blackish 

 brown. A black spot between the ocelli. Antennae 

 brown. Thorax and abdomen brown. Legs yello- 

 wish brown; hind tarsi dark brown; tip of femora, 

 tibiae and of tarsal joints blackish brown. Wings 

 gradually broadened towards apex, which is roun- 

 ded. Membrane yellowish brown; nervures brown 

 to dark brown. Pterostigma twice longer than 

 broad, connected with radial sector by two cross- 

 veins. Subcosta joins the costa beyond fork of 

 radial sector, which is a little before fork of media. 

 No costal crossveins. Subcostal crossvein between 

 origin and fork of radial sector. Anal crossvein 

 before cubital crossvein, the latter opposite to fork 

 of media. lA ends opposite to or a little before 

 fork of radial sector. Bristles on the margins of 

 wings near base. In the male the branches of 

 upper appendage very long; their ventral margins 

 somewhat emarginate. Setae almost as long as 

 upper appendage, slender, cylindrical, curved down- 

 wards in their middle. 



Forewing 23 mm; hindwing 21 mm. 



Brit. Museum: 2 5, 3 9 Guerrero, Mexico (Smith 

 leg.); 3 5 S. Geronimo, Guatemala (Champion leg.); 

 1 spec. San Bias, Jalisco (Schumann leg.); 1 9 

 Temax, N. Yucatan (Gaumer leg.). — Mus. Ham- 

 burg: 1 5' ^ 9. 1 spec, (abdomen lost) La Union 

 Salvador (R. Paessler leg.). — Coll. Esben-Petersen; 

 1 (5 Guadalajara, Mexico (ex coll. Banks) (type). 



In the shape of wings this species has some li- 

 keness to B. niexicanus Klug, but there are several 

 good and distinct characters. In B. banksi 1 A 

 joins the hind margin opposite to fork of radial 

 sector, and an anal crossvein is present. In B. mexi- 



