106 



There are two species in this vial : one is a large Macrosipkum 

 with long Cauda and cornicles, which I take to be Monell's 

 M. tiilipcc; the other species is a RhopalosiphiDii, and is doubt- 

 less the species Thomas characterized as R. tulipce, w^hich, so 

 far as can be made out from the poor specimens, agrees with 

 his description. They are probably the types, which were col- 

 lected by Dr. Bundy, from whom he received his Sauk City 

 specimens. The size, wing venation, sehs9ria on anteniial seg- 

 ment III (the remaining segments not found in vial), corni- 

 cles, Cauda, and black blotch on the dorsum of the abdomen, 

 which is still faintly visible, all agree with Myj^iis persiccc Sulz. 

 (=Rhopalosiphum dianthi Schr.), which species I believe it 

 to be. 



"94" and "No. 10 Sauk City, Wis. Rudbeckia hirta." A small con- 

 glomerate mass in the bottom of the vial, and consequently un- 

 determinable. See slide 94, page 99. 



"98." Traiiia crigcronensis Thos. All immature. See slide 98, 

 page 99. 



"Melon c July i, '97." Dry in vial. Aphis sp. Probably A. gos- 

 sypii, but in too poor condition for determination. 



The data of the following table, with one indicated exception, con- 

 cern the species of Aphidida: of which descriptions are given by 

 Thomas in the Eighth Report of the State Entomologist of Illinois 

 (exclusive of the supplement), and but for the above single exception 

 and the changes in nomenclature are drawn from this report. For 

 the rest, the headings and the following key to the meaning of the 

 superior letters used, W'ill make the table clear. 



a= Foot-note reference. 



b^No report of collection of the species since it was originally 

 described. 



c=A European species mentioned as possibly occurring here, but 

 never reported. Probably does not occur in America. 



d=A European species reported once as having been taken here, 

 but not again reported. Original determination is ques- 

 tioned. 



e^A European species mentioned and description quoted, but 

 nothing said as to occurrence in this country. Probably not 

 found in America. 



