iQio] Notes on Certain Species of Manestr a 155 



an imperfect or broken structure and, while it is reasonably accu- 

 rate so far as it goes, it is altogether misleading as representing 

 the real structure of the illaiidabilis form which, obviously, I used 

 for the dissection. In 1905, Hampson, having before him the 

 types of Guenee, Walker and Grote, lists all names under lauda- 

 bilis, but as "Ab. 2, illaiidabilis,'" he designates those forms in 

 which the green tinge is almost entirely replaced by white. 



During the two or three years last past it has been my fortune 

 to handle very large series of these forms from all parts of the 

 country, and the more of them I handled, the less satisfied I be- 

 came wdth the association. Recently, in re-arranging the species 

 in this series, I gathered in all my material for comparison, and 

 demonstrated to my own satisfaction two very good species; the 

 one extending throughout the eastern and southern States and 

 into Texas, the other through the Rocky Mountain region into 

 Arizona and west to the Pacific Coast. The ti-ue laudabilis is a 

 chunky, heavily built species with comparatively short, broad, 

 obtuse primaries. Strigicollis, which must be used for the other 

 species, is slighter throughout, the primaries narrow^er, more 

 trigonate, with apices more obvious. In color, laudabilis when 

 fresh, is always greenish, fading out to whitish, with the median 

 space ranging all the w^ay from reddish to black, often greenish 

 below the sub-median vein. The space also tends strongly to 

 narrow inferiorly. In both sexes the secondaries may range from 

 blackish to almost pure white, and the general impression is that 

 of a stout, heavily built insect. Strigicollis, on the other hand, 

 never has that delicate green tinge in even the freshest examples, 

 and many of them are almost clear w^hite. In others there is a 

 mossy olivaceous tinge which often darkens the normally pale 

 portions of the wing. I have never seen a specimen with a red- 

 dish median area, but this may range anywhere from olivaceous 

 brown to black. The median space while it tends to narrow in- 

 feriorly, never approximates the median lines so closely, and does 

 not often tend to give a wedge-like impression. The secondaries 

 are more uniformly pale in both sexes., and the impression, as 

 already stated is of a slighter species than laudabilis. 



Finally, as there was plenty of material available, I tested the 

 male genitalic structures once more, and demonstrated the dis- 

 tinctness of the two series beyond peradventure. A comparison 

 of figure i with figures 2, 3 and 4, will show that it is not a matter 

 of slight differences, but of quite a radical change. In laudabilis, 



