AMERICAN LEPIDOPTERA. 23 



believe it to be so, and that probably, in his original description, the 

 locality "New York" was an error. The other localities given in 

 my catalogue followed Mr. Grote's notes. I have never seen any 

 specimens of stramentosa identified by Mr. Grote. The examples 

 before me are all very much alike, and they are evidently related to 

 immanis. The male genitalia, while agreeing with the series to 

 which I have related it, are distinctive. The harpes are broad at 

 base, narrow slightly until just before the end, where there is an 

 abrupt cut from the lower side, which leaves a slender process that 

 expands into a somewhat ladle-shaped tip, fringed inwardly with 

 spines. There is a very heavy, stout, corneous clasper arising from 

 the harpe just within the point at which it narrows a little, curved 

 and terminating acutely. The an ten me of the male have the joints 

 marked, and at the sides set with little bunches of soft short hair. 



Hydrceeia obliqna Harvey, pi. 1, fig. 11, % genitalia. 



1876. — Harvey. Can. Ent., viii, 53, Gortyna. 



1881.— Grote, Bull. Geol. Surv., vi, 268, Gortyna. 



1884.— Smith, Bull. 4th Div. Ent. U. S. Dept. Agl., 38, immanis. 



1893.— Smith, Bull. 44th U. S. Nat. Mus., 175, immanis. 

 Ground color a somewhat sordid reddish brown, with a tendency to yellowish. 

 Head and thorax without obvious markings, save that there may be a darker line 

 across the collar above the middle. The primaries with all the marking trace- 

 able, but hardly contrasting : the t. p. line being the most prominent, and this 

 best emphasized by the paler shade which follows it. The basal line is barely 

 traceable across the costa. T. a. line not much better marked ; but as a whole 

 outcurved and outwardly curved between the veius. The t, p. line curves rather 

 abruptly over the upper portion of the cell and is then rigidly oblique below. 

 There is a slightly darker patch on the. costa, which marks the inception of the 

 s. t. line, and this is of such a shape that at first sight its edge seems to form the 

 continuation of the t, p. line, making it appear as if that line extended obliquely 

 from just within the apex to the hind margin. S. t. line pale, a little irregular, 

 feebly marked by the slightly darker terminal space and sometimes also by a 

 dusky preceding shade. There is a brown line at the base of the concolorous 

 fringes. The median shade line is just traceable in most specimens. It is hardly 

 to be distinguished on the costa, bends outwardly between the ordinary spots 

 and is then angulated inwardly, running parallel to the t. p. line. A slightly 

 darker shade extends through the median space below vein two. Ordinary spots 

 barely outlined, of the ground color and moderate in size. Orbicular round or 

 nearly so, varying somewhat. Reniform upright or nearly so, broad, rather 

 irregular, kidney shaped. Secondaries pale yellowish, without obvious markings. 

 Beneath pale yellowish, in some cases almost whitish, usually without markings, 

 but sometimes with an incomplete outer line. Expanse 1-1.60 in. ; 25-40 mm. 



ffab. —Dakota, South Dakota, Colorado, Arkansas, Northern 

 States west of the Mississippi to the Pacific Coast. 



TRANS. AM. ENT. SOC. XXVI. MAY . 1899 - 



