1050 The Zoologist — January, 1868. 



Front grooved between the tubercles. Nectaries long, cylindrical, 

 slender. Tail generally long, often compressed, falchion-shaped. 

 Legs slender, very long. Wings deflexed. Fore wings wilh four 

 oblique veins ; cubital vein twice-forked. 



A. Apterous form green. 

 A. Nectaries wholly black. 

 a. Nectaries very long. 



a. Border of the abdomen with black points in the winged form. 1. Rosce. 



aa. Border of the abdomen without black points in the winged form. 



2. Cyparissia. 

 aa. Nectaries moderately long, as long as the tail, or a little longer. 



a. Apterous form of one colour. Tail shorter than the nectaries. 3. Cerealis. 

 aa. Apterous form with various spots. Tail as long as the nectaries. 



* A continuous green dorsal stripe. . . . .4. Mille/olii. 

 ** An interrupted green dorsal stripe, formed by triangular spots. 



5. Artemisia. 

 AA. Nectaries pale, often green, blackish at the lips, or rarely from the middle 

 to the tips. 

 a. Apterous form wilh setigerous dorsal tubercles, which are arranged in 



longitudinal series. ........ 6. Awellame. 



aa. Apterous form without dorsal tubercles. 



a. Tail very short, hardly visible. 7. Plulanoides. 



aa. Tail more or less long, at least equal to one-fourth of the length of 

 the nectaries. 



* Nectaries attenuated towards the tips, blackish from the middle. 



8. Ulmaricc. 

 ** Nectaries black or brown only at the tips. 



f Tail less than half the length of the nectaries. 



J Frontal tubercle with a stout tooth on the inner side. . 9. Solani. 

 H Frontal tubercle sometimes gibbous, but not dentate. 



§ Abdomen above smooth, shining. Legs vinous-brownish. 



10. Vrlica. 

 §§ Abdomen above transversely rugose, more or less dull. Legs 



somewhat luteous. 11. Malvir.. 



\\ Tail as long as half the length of the nectaries or longer. Abdomen 



with pulverulent sutures. . . . . .12. Lactttcce. 



AA. Apterous form brown, or red, or nut-colour, sometimes powdered with white. 

 A. Tail black. 



a. Abdomen brown, powdered with white, with a black dorsal spot. 



13. Absinthii. 

 aa. Abdomen red or brownish rust-colour, more or less shining. 



a. Tail as long as the nectaries. 14. Campanula. 



aa. Tail shorter than the nectaries. 



* Legs luteous; tarsi and tips of the femora and of the tibia? black. 



15. Solidaginis. 

 ** Legs black ; femora luteous at the base. . . . 16. Jatea. 



