104 



"82" and "No. 2 Sauk City, Wis. On Plum". Phorodon humuli 

 Schr. 



"83" and "No. 11 On ash, Sauk City, Wis." Pemphigus sp. The 

 specimens are in a macerated condition and it is impossible 

 to make a positive specific determination. They are probably 

 P. fraxiiiifolii Thos., and may be the types, which Thomas 

 says were collected on ash at Sauk City, Wis. 



"84" and "No. 7 Grape Sauk City, Wis. On Grape." Macrosi- 

 phum viticola Thos. In rather poor condition. (See foot-note, 

 page 108.) 



"85" and "No. 14 On Choke Cherry, Sauk City, Wis." Aphis cera- 

 sifolicc Fitch. Probably the specimens from which he made 

 the description given in the Eighth Report. In rather poor 

 but nevertheless determinable condition. 



"86" and "No. 13, On Oak, Sauk City, Wis." Specimens in poor 

 condition and none with the antennae entire. This may be 

 the species referred to by Thomas as MyzocalUs hella Walsh, 

 specimens of which he says were collected on oak at Sauk City, 

 Wis. Thomas's description of hella can not apply to the spe- 

 cies Walsh described under that name, and, as has already been 

 noted by Monell and Oestlund, it would seem that Thomas 

 was dealing with Calliptents discolor, since he says (p. 106, 

 8th Report) of the wings, "veins dark brown, slightly mar- 

 gined with brown, which expands at the points where they 

 reach the margin," and of the stigma (p. 107) "pale in the 

 middle, but is crossed obliquely at each end by a brown band." 

 This latter character may be referred to a darker area at each 

 end of the stigma as well as at the end of each wing vein. The 

 species under the above label is evidently Calliptents punctotus 

 Monl. 



"87" and "No. 3 on Ribes aiireum S. City, Wis." Myzns sp. Only 

 wingless specimens, most of which are immature, and all in a 

 more or less macerated condition, making specific determina- 

 tion impossible. 



"88". and "No. 5 Acer ruhriim Sauk City." Drepanaphis aceri- 

 folice Thos. 



"89" and "No. 8 Sauk City, Wis. On Elm." Callipterus nlmifolii 

 Monl. (=C idmicola Thos.). Number of specimens, and all 

 in poor condition, but some of the important characters, such 

 as the abdominal tubercles and wings, are clearly disting^iish- 



