SIPHOKOPHOBA OIOHOEII. 
163 
As Koch 5 however, describes his insect to be smooth, 
without knobs or hairs on the abdomen, and also 
notices a large dorsal spot, I conclude it is not the 
insect that I figure. 
Aphis picriclis of Kaltenbach also may be difterent, as 
the abdomen is stated to be shagreened, and the tail to 
be two thirds the length of the nectaries. 
There are noticeable slight differences also in the 
insect which feeds on several kinds of hawkweed 
' (Hieracinm). The adult apterous females are like 8. 
soncM, but their young are green, with black nectaries. 
Again, the winged females are identical with 8. sonchi, 
except that their abdomens are dark green instead of 
rich brown, and their nectaries are green at their bases. 
I believe these are varieties. 
SiPHONOPHOBA OIOHOEII, Koch, Plate XXIX, figs. 1, 2. 
Apterous viviparous female. 
IncEes. Millimetres. 
Size of body 0-075 X 0*030 1-89 X 0*76. 
Length of antennse 0*095 2*34. 
,, cornicles 0*017 0*42. 
Long oval. Wholly shining olive-green. Head and 
thorax broad. Antennsa dark green, with black at the 
joints. Abdomen long, Carina deeply pitted. Dorsum 
convex and studded with dark tubercular spots. 
Slightly bristly. Cornicles long, thin, and green. 
Cauda green and hairy. Legs with femora darker 
than the tibiae. Byes red. 
Winged viviparous female. 
IncEes. Millimetres. 
Expanse of wing 0*280 7*10. 
Size of body 0*090 X0’085 2*27x0*88. 
Length of antennae 0*140 3*55. 
,, cornicles 0*022 0*55* 
