108 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



C. perlentans Wlk. 

 1856. Wlk., C. B. Miis., Het., x, 3.52, A<jrotis. 



Habitat. — "li^ew York." 



I have not been able to find this species in the British Museum, nor 

 lias Mr. Butler been able to trace it. Messrs. Grote and Robinson saw 

 it, and to them it suggested a rubbed tritici. It is quite likely to be 

 either tessellafa or insulsa, and is almost certainly a species known to 

 us under another name. 



Here ends the agrotid series. I have omitted Agrotis vetusta Wlk., 

 of which the type is lost, and which can not possibly be made out from 

 the description. The latter will be found in my '' Kevision" if anyone 

 cares to try to identify it. 



Genus RICHIA Grt. 

 1887. Grt., Can. Eut., xix, 44. 



Mr. Grote separates this from Ammaconia, I can not say at present 

 how correctly, since I have no European material for comparison. If 

 the characters given by Mr. Grote hold, the genus is probably good. 

 They will not hold ioYsculptilis, certainly, for I redescribed that in Agrotis^ 

 to which it belongs. Ammaconia is by Lederer, i!foct. Eur., 1857, 97, 



R. choitalis Harv.* 



1875. Harv., BulL Buff. Soc. Nat. Sci., ii, 272, Agrotis. 



1875. Harv., BulL Buff. Soc. Nat. Sci., iii, 5, 74, pi. 3, f. 9, Ammaconia. 



1879. Grt., Bull. Geol. Snrv., v, 207, Agrotis. 



1887. Grt., Can. Ent., xix, 44, Eichia. 



var. aratrix Harv. 

 1875. Harv., Bull. Buff. Soc. Nat. Sci., in, 74, pi. 3, f. 8, Ammaconia. 

 1879. Grt., Bull. Geol. Surv., v, 207, Agrotis. 

 1887. Grt., Can. Ent., xix, 44, Eichia, an dim. var. pr. 



Habitat. — Texas, in November; Arizona; Colorado, Glenwood 

 Springs, September and October; New Mexico. 



Types of both forms are in the British Museum. The exact relation 

 of the two forms to each other is not 'yet known. They are not geo- 

 graphic races, nor seasonal varieties. 



R. parentalis Grt.* 



1879. Grt., No. Am. Ent., i, 44, Agrotis. 



1881. Grt., Trans. Kans. Ac. Sci., vii, QG, Agrotis. 



1882. Grt., 111. Essay, 53, pi. i, f. 13, Ammaconia. 

 1887. Grt., Can. Ent., xix, 44, Eichia, et var. decipicns. 

 1889. Bntkr, Trans. Ent. Soc. Lond., 1889, 383. 



var. decipiens Grt. 

 1879. Grt., No. Am. Ent., i, 45, Agrotis. 

 1882. Grt., New List, 26, Ammaconia. 

 1887. Grt., Can. Ent., xix, 44, Eichia. 

 1889. Butler, Trans. Ent. Soc. Lond., 1889, 383, an var. r»prf«. 



Habitat. — Colorado, Glenwood Springs, September and October; 

 New Mexico, 



