REVISION OF SPECIES OF THE GENUS AGKOTIS. 41 



median space inferiorly. Tlie orbicular is more obliciue and i.s brijiht 

 brown, not concoloroiis as in innotabilis ; it is somewhat larger and 

 squarer. The collar is bicolorous in both, and else the two species are 

 much alike." 



Mr. Grote's first impression was correct, and the two forms refer to 

 the same species. In a series of specimens from California and Wash- 

 ington examined by me all the characters are evanescent, and innofa- 

 hilis shows the same cross lines in the median 8]>ace, though as it is 

 darker, the lines are very feebly marked and readily overlooked. One 

 of the Washington si)ecimens scarcely differs from ty|)i(!al innotabilis. 



I had no male available for the study of the genitalia. 



Adelphagrotis prasina I'iiUr. 



1787, Fabr., Mant. Ins. li, 109, Xoctiia. 



1952. Gil., Noct., II, 75, Aplecla. 



1874. Grt., IJull. BiifT. Soc. N. Sci., ii, 163, Enrols. 



1875. Speyer, Stett. Ent. Zcit., 3G, 136, Aplecta. 



Umber brown, more or less densely covered with mossy green scales, 

 which usually give the predominant color to the primaries. Basal line 

 black, followed by a white shade; t. a. line single, black, oblique, irreg- 

 ular, preceded by a white shade. T. p. line strongly creuulate, ob- 

 scured at the costal half by a large irregular white patch. At lower 

 part inwardly oblique constricting the median space; followed by a 

 row of black, and then a row of white venular points. S. t. line very 

 irregular, pale green preceded by a darker shade, and superiorly by .i 

 few sagittate black points. The claviform is shoit outlinetl with black 

 scales. Ordinary spots large, concolorous, annulate with black. Head 

 white with a greenish tinge. Thorax concolorous, tufts somewhat fer- 

 ruginous. Body and secondaries blackish fuscous. 



Expands 45-50""" ; 1.75-2 inches. 



Habitat. — New England and IMiddle States ; Europe. 



This is one of the few species common to the United States and 

 Europe and is easily distinguished by its large size and the mossy 

 green mottling of primaries and the large white patch beyond the reni- 

 form. It is common. The genitalia are simple, and liave been referred 

 to in the introduction. 



The European synonymy and bibliography are not given, and the 

 insect has been seldom referred to in American publications. 



Adelphagrotis apposita Grt. 



1878. Grt., Bull. Surv., iv, 170, Aip-otis. 



1883. Grt., Tapilio, iii, 78, A<jroii8. ^ 



" $ Fore tibiic unarmed. Of a burnt umber brown ; thorax darker, 

 median space narrowed, the median lines approximate ; t. a. line slightly 

 lobed, outwardly oblique, dark brown, with a broad preceding pale 



