lO 



costa and exterior margin, into an irregular, triangular field. The 

 anterior line of dots, starting near apex, not parallel to interior 

 line, but diverting from its course and striking the exterior mar- 

 gin at conjunction of second discoidal nervule. These two longi- 

 tudinal lines are connected by a horizontal bar of very narrow, 

 irregular dots, following the course of second discoidal nervule. 

 The connecting dot of horizontal and anterior longitudinal lines, 

 near exterior margin, is of furcate shape, and the whole appear- 

 ance of the shorter anterior and longer interior lines, intercepted 

 by the vertical bar, strikingly resembles the figure 4. An 

 irregular cream colored spot in discal area. 



Secondaries intensely red, with black fringes, and broad, black 

 marginal band from base to somewhat beyond anal angle. A large 

 black reniform spot, starting from costa rests on median 

 nervule. A small longitudinal line of irregular black spots from 

 costa, near apex, reaches to second sub-costal nervule, without 

 touching the marginal band, and leaves a small interspace of red. 

 Resting on marginal band, near anal angle, are two irregular, trian- 

 gular shaped black spots, connected above by a small black line, 

 thus forming a small square space of red color. 



Beneath the markings on primaries and secondaries are the 

 same, with the exception that those on former are o-f a light rose, 

 instead of cream color. 



Expanse of wings, 1.75 inches. 



Length of body, 0.75 inch. 



The insect is readily distinguishable from the other members 

 of its group by the striking contrast of the dark black primaries 

 and thorax, the flaming red color of its secondaries and upper 

 part of abdomen, and the sparse disposition of the markings and 

 lines, usually so abundant in North American Arctians. 



Habitat : Indian River, Florida. Collected by Dr. Wiss- 

 feld, season of 1880. 



Type, ? ; coll., B. Neumoegen. 



New York, December 24th, 1880. 



THE NORTH AMERICAN SPECIES OF EUSTROTIA. 



By a. R. Grote. 

 {Read before the N. Y. Ent. Club, at the first meeting in December.) 



The species of Eustrotia differ from Thalpochares, among other 

 characters, by the presence of an accessory cell on the primaries. 

 Lederer divides the species in two groups according as the 

 abdomen is provided with tufts over the dorsal region or not. 

 In A the abdomen is untufted ; in B tufted. The European 

 catalogues give us ten species. I refer the following fifteen 

 species from North America to the genus, for which latter I re- 



