THE WINGS OF MYRMELEONIDJE 



205 



"b) A series of apical gradates joining the branches that spring from the apical 

 spur vein formed by fusion of tips of Sc and Ri. [See Figure 156.] 



"c) An outer gradate series, paralleHng the outer wing margin connecting the 

 branches of the radial sector just proximal to the base of their terminal forks. 



--ii^ii^m ^ ' v !'i\' ! 1 V I V / V/ ^ TTTPrri^ 



rca 



Fig. 201.— Wings of Acanlhaclisis, a species from the Seychelles Islands. 



"d) A longitudinal series extending lengthwise of the area between the truss cell 

 and the radial planate. [See Figure 202.] 



"7. The development of planales in two of the larger areas of the wing, thro the 

 shortening of cross veins, the approximation of adjacent longitudinal branches, until 



Fig. 202. — Wings of Crypioleon nebulosum. 



