50 Bulletin Wisconsin Natural History Society. [Vol. 7, Nos. 1-2. 



8. Aster Isevis L Smooth Aster. 



In size, structure, and color the flowers of this species agree 

 quite closely with those of A. pimiceus. Blooming period from 

 about August S to November 5, the latest date on which these 

 flowers have been observed. The heads examined contained 18 

 to 24 light blue ray florets, and 30 to 34 yellow discal florets. In 

 the older flowers the latter assume a dark reddish-brown color. 

 The upper cylindrical portion of the discal floret is 3 mm. long, 

 and its lobes are erect. As in A. puniceus the stylar branches 

 are divergent, and never cross each other. 



72 visitors : 



EUTEOPOUS. 



Bees : 1, worker, s. ; 2, worker, s. and c. p. ; 4, male and worker, 

 s. ; 7, worker, s. ; 13, male, s. ; 16, male, s. ; 17, female, s. and c. p. ; 23, 

 female, s. ; 24, female, s. and e. p. ; 25, female, s. ; 31, female, s. ; 35. fe- 

 male, s. and e. p. ; 36, female, s. ; 53, female, s. ; 56, female, s. ; 57. male, s. 



HEMITEOPOUS. 



Bees : 89, female, s. and c. p. ; 97, female, s. and c. p. ; 99, male 

 and female, s. and c. p. : 100. female, s. and c. p. ; 102, male and female, 

 s. ; 104, female, s. ; 105, female, s. ; 107, male and female, s. ; 108, male, s. ; 

 112, male, s. ; 116, maie, s. ; 132, female, s. ; 135, female, s. 



Wasps : 155 ; 196 ; 204 — all s. 



Flies: 293; 298; 299; 306; 307; 308; 313; 314; 315; 316; 317; 318; 

 319; 321; 322; 330; 332; 335; 343— all e. or f. p. 



Butterflies and moths— 449 ; 450;. 451; 463; 464; 469; 473; 481; 

 493— all s. 



ALLOTEOPOUS. 



Flies: 372, 373; 381 ; 383: 384: 392; 43S ; 443— all s. or f. p. 



Beetles: 508; 515: 527; 528— all s. or f. p. 



Eutrop 16 — 22.2% 



Hemitrop 44 = 61.1% 



Allotrop 12 = 16.7% 



9. Aster novae=angliae L. New England Aster. 



Blooming period from about August 15 to October 11. The 

 rays are purple and the discal florets dark yellow, and Shull 27 

 gives an average of 42 for the former and 62 for the latter. The 

 discal floret in its upper part is 4 mm. long with a diameter of 

 1 mm. at its entrance, and its lobes are erect. After going through 

 the change of color the disk is dark reddish-brown. In this species 



■:i) Shull, loc. cit. 



