APHIS PETASITIDIS. 69 



more suffused with brown than the younger, whilst 

 numerous dark bars appear on the dorsum. The 

 rostrum is very long, but not quite so long relatively 

 as in the apterous female. Tail short and rounded. 

 The head has the unusual number of five stemmata. 

 The third antennal joint is distinctly ringed, and the 

 fourth shows a tendency towards the same character. 

 Taken at Haslemere, but not plentifully, September 

 12th, on the coltsfoot. 



Aphis petasitidis, Buchton. Plate LVIII, figs. 1, 2, 



Apterous viviparous female. 



Bright green, almost transparent. Nectaries very 

 small. Cauda none. Extremity like the pupa. Cap- 

 tured at Holy Island, Northumberland, and at Albury, 

 Hertfordshire. 



Pupa. 



Wholly green. Head broad, usually tinged with 

 ferruginous red. Abdomen mottled with yellow and 

 green. Antennae about half the length of the body. 

 Cornicles very small. Tips of the antenna3, nectaries, 

 tarsi, and rostrum black. Eyes red. 



Winged viviparous female. 



Bluish green. Head broad, front flat. Antennge 

 black ; third joints thick and serrated on their lower 

 edges. Head, thorax, nectaries, points of femora, 

 tibia, and tarsi black. Abdomen shining green, with 

 a large square dorsal spot and three other lateral 

 spots black. Legs slightly pilose. Rostrum reaches 



