126 ILLINOIS BIOLOGICAL MONOGRAPHS [520 



PLATE XXVIII 



Showing the parallelism of patterns of the north stem of W. Horn's phytogeny, 

 and C. sexguttata Fabr. Compare the rows with one another. 



Explanation of Plate 



Figs. 473-474, tranquebarica Herbst subsp. phttoiiica Cas. (California) drawn 

 from descriptions by Leng; 475-478, do. subsp. vibex Horn (Las Vegas, New) ; 

 479, do. (San Bernardino, Cal.) ; 480, greenish brown form of tranquebarica (Ha- 

 german, Idaho) (roguensis Harris) ; 481, tenuicincta Sch. (Salt Lake) ; 483, 

 tranquebarica (Framingham, Mass) ; 483, tenuicincta Schpp. (Saltair, Utah) ; 484, 

 tranquebarica Herbst (Alamosa, Colo.) ; 485, do. (Las Vegas, Nev.) ; 486-490. 

 scutellaris Say, varieties — see figure 468 and description;, 491, echo Cas. (Great 

 Salt Lake) ; 492, willistoni Lee. (Lake Como, Wyo.) ; 492, fulgida Say (Kansas) ; 

 494-496, latesignata Lee. (San Diego, Cal.) ; 497-501, pulchra Say (499-501 — Al- 

 pine, Texas, drawing supplied by Prof. H. F. Wickham, from specimens in his 

 collection) ; 502, latesignata aber. tenuicincta Blaisdell (Saltair, Utah) ; 503-505, 

 longilabris Say, varieties; 504-505, (N. Mexico); 506-518, purpurea Oliv., varie- 

 ties (see Fig. 470) ; 508-509, 516-518 (Sedalia, Colo.); 519, generosa subsp. maii- 

 toba Leng.; 522-523, sexguttata (Onaga, Kansas); 524, do. (Chicago); 525-526, 

 do. (Woods Holl.) ; 527, sexguttata subsp. patruela Dej. (Lakehurst, N. J.) ; 52S, 

 12 guttata Dej. (Chicago); 529, ancosisconensis Harris; 530, repanda Dej. (Chi- 

 cago); 531-532, generosa Dej.; 531, do. (Framingham, Mass.); 532, do. (Lake- 

 hurst, N. J.) ; 533-534, venusta Lee. (Aweme, Man.) ; 535-536, limbata Say 

 (Aweme, Man.) ; 536, purpurea, showing reduced and shortened marking. 



