Explanation of Plate VII. 



8th ventral segment {valvula ventraUs) in — 



1. A. nigro-olivacca , ventral view (1« dorsal, 16 lateral). 



2. ^1. livens, 



3. A truncatUabris, 



4. A. ferrughieicrus 



5. A. giraudi, 



6. A. tnraxaci, 



7. A. curtivalvis, 



8. ^4. stabiana, 



9. A. seiiecionis, 



10. A. humilis, var. 



with black clypens ., 



11. Do. var, with white 



clypens (= fidve-i- 

 cens, Sni.), „ 



(10a 



(11« 



106 



116 



