224 



Records of the S.A. Museum 



veins, named respectively from the front or aiitci-ior mar^i'n) l)aekward, ('osta (C), 

 Snbcosta (Sc), Radins CR), Media (M), Ciil»i1us (C^i), and the Anal veins. The 

 long'itudinal v(miis arc always indicated by capital letters, followed by sub- 

 numerals to indicate Ihc ninul)er of the branch. 



Costa (C) forms the anterior margin of the wing and is unbranched. 



Snbcosta (Sc) is a weak vein lying between costa and radius, forked once, 

 usuall}^ near its tip, the anterior branch (Sc^) connecting with costa, the posterior 

 branch (Sc^) connecting with radius. Sc- tends to migrate toward the wing-base 

 and simulates a crossvein. 



, 5c; 



\RtrS 



Rh+j 



IstA Cu7 



Winj>-Vonatioii of Giinoplistin, sp. 



rig. 335 (upper). Interpreted necordinf)- to tlie Comstock-Needham system, 



rig. 336 (lower). Iiiterpreteil as nioditied l)y Tillyard. 

 A:=anal veins. li=luuneral crossvein. 



C=costa. m=medial crossvein. 



Cu=:cubitus ni-cu=niedial-cubital crossvein. 



M=media. r=radial crossvein. 



R=radius. r-m=;radial-medial crossvein. 



Sc^subcosta, Rs=radial 3ector, 



