105 



able. They are probably the types of Thomas's C. nlinicola, 

 which were collected on elm at Sank City, Wis. 



"90" and ''No. i Sauk City, Wis. On Heuchera hispida." Ma- 

 crosiphnm heuchera: Thos. Many specimens dry in vial, all 

 in very poor condition. They and specimens on slide 90 (see 

 page .99) are doubtless the types, which Thomas says were' col- 

 lected at Sauk City, Wis., on H. hispida. The accompanying 

 notes and drawings have been made from the vial and slide 

 specimens. 



Only one of the winged individuals in the dry vial bore as 

 manv as four antennal segments, and these are shown in 

 Figure 17, Plate VII. Segment III bears about fifty irregu- 

 larly placed circular sensoria ; IV, twenty-five or thirty. On 

 the slide one winged specimen bears one antenna with segment 

 VI broken off. Sensoria on III and IV as noted for the vial 

 specimens. Segment V bears a number of irregularly placed 

 sensoria, but it is impossible to determine the exact number. 

 One detached antenna was found which is from an adult 

 wingless or immature individual, probably the former (PI. 

 VII, Fig. 20). Antenn?e on moderate frontal tubercles (Fig. 

 16). Proportion of wings and legs to body typical of the 

 genus Macrosiphum. Cornicles and cauda are as given in 

 Figure 18, but owing to the specimens being dry both are 

 somewhat shriveled. Camera lucida drawing of the wing is 

 shown in Figure 19. The wing veins are darkish and con- 

 spicuous, and the second discoidal branches at a distance vary- 

 ing from two-fifths to nearly three-fourths the distance from 

 the tip to where the third branches. 



'91" and "No. 7. Dogbane, Sauk City, Wis." The specimens are 

 in too poor condition for determination, but are possibly the 

 species referred to by Thomas under the name Aphis apocyni. 



"92" and "No. 15 Sauk City, Wis. On Oak leaves." A few speci- 

 mens in poor condition. The wing veins show very faint 

 brownish margins, the faintness probably being due to the 

 length of time in alcohol. They agree in every detail with the 

 description of Callipterus qiiercifolii Thomas, and doubtless 

 they are the types of that species. As is shown in another 

 paper, this as well as Chaitophorus spinosiis Oestlund are syn- 

 onyms of Chaitophorus qitercicola Monl. 



"93" and "No. 6 On Tulip Sauk City, Wis." Vial contains a num- 

 ber of specimens in poor condition. Antenna? all broken off. 



