62 NOMENCLATUEE OF EXTERNAL STEUCTUEE. 



towards the inner margin conspicuously larger than those 

 behind. First two joints of the antenna? small, the third long, 

 nearly reaching the oral margin, concave in front, the tip being 



y^ Proboscis (ensheatiiseHn the pslpi). 

 \ Ansta 



.i_.N^ ! A^^P^T_^'} 



.. , HinjlJeg. 



V 



icrsus 

 (SJoinied.) 



Pig. 8. 

 Diagram showing nomenclature of external characters of Ghssina, used in description, 

 Vkixs and Cells in the Wing. 

 Transverse Veinit, 



A. Anterior transverse vein. 



B, Posterior ,, ,, 

 (J. Anterior basal ,, ,, 

 D. Posterior ,, ,, ,, 



Longittidiitfil Veins. 

 I". Auxiliary vein. 

 1- First lonptiulinal vein 

 II. Second ,, 



III. Third 

 IV. Fourth 

 V. Fifth 

 VI, Sixth 



Cells. 



1", 1'', 1', First, second, 



and third costal cella. 



2. Marginal cell. 



3. Sub-nmrginal cell. 



4, Discal cell. 



5, 6, 7, First, second, and 

 third posterior cells, 



8. Anterior basal cell. 

 !>. Posterior ,, ,, 

 10. Anal cell. 



