xxxiii, '22] ENTOMOLOGICAL NEWS 107 



This is not as compact a group as for instance the nodisticta 

 group. Lnctuosa is specialized in the broad, black base of the 

 wings and in the black and yellow body-colors. Auripcnnis is 

 equally specialized in its coral-red color. Flarida, perhaps, is 

 more generalized in that it has the general color pattern of the 

 species of Group 8 (d), but shows the reddish cast which is so 

 much better developed in auripennis. 



Group 8. (d) Axillena Westw. PI. IV, fig. 20. Pennsylvania to 

 Florida and Louisiana. A species of the southern evergreen forest 

 usually found near small streams in woods. 18 



Cyanea Fabr. PI. IV, fig. 21. New Hampshire to Indiana and 

 Georgia. A species of the deciduous forests, usually found about 

 inlets or outlets of ponds. 



Comanche Calv. PI. IV, fig. 22. Montana to Texas, Mexico 

 and California. The writer has seen but one specimen of this in the 

 field. It was along a swampy stream. 19 



Incesta Hagen. PI. IV, fig. 23. Maine and Wisconsin to Mis- 

 souri and Florida. A vigorous, wide flier, over open ponds and 

 streams. 18 



Vibrans Fabr. PI. IV, fig. 24. Maine to Missouri and Florida in 

 woods swamps. 18 



Because of the great difference between the penis of a.rillcna 

 and that organ in the other species of this group, a.rillcna may 

 not belong in the group. 



This group appears to be very modern in that the species 

 are very close. While the penes show all of them to be good 

 and distinct species, the writer has been unable to unscramble 

 their relationships to his satisfaction. ^l.riUciia and Z'ibrans, 

 by penis characters, are very different, also by the same criteria 

 inccs/a is closer to comanclic and cyanca than to ribrans and 

 a.villcna. Probably they are a complex of mutants with various 

 combinations of a limited set of characters. The following 

 four pairs of characters appear in the group : 



1.1 Dark face 1.2 White face 



2.1 Nodal spot 2.2 No nodal spot 



3.1 Basal spot 3.2 No basal spot 



4.1 Dark stigma 4.2 Pale stigma 



18 Jesse and E. B. Williamson to the writer. 



[ 19 Along the outlet of the sulphur springs at Santa Rosalia, Chi- 

 huahua, Mexico. P. P. CALVERT.] 



