116 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



tlie first-named character. The naked eyes separate the genus from 

 Mamestra Ochs.; the tibial claw, from Sadena Schrank. As so consti- 

 tuted, the genus comprises species of varying pattern of ornamentation : 

 dayi and liayesi might, at first sight, be taken for species of Anarta 

 allied to cordigera; hehrensi and glennyi resemble the European species 

 of the genus; augustus has a strong resemblance to some of the species 

 of Agrotis, so also chandleri; atricollaris resembles the species of 

 Homohadena ; occata and smmdersi look much like the European species 

 of Gleophana. On the other hand, the single North American species 

 C. eultpis Grote, from Oregon, which I refer to Cleophana, resembles 

 greatly a species of CuciiUia. The gray, striate, and long primaries de- 

 ceive one until the fore tibite are seen to be provided with a claw, and 

 then the essential characters of Cleophana, the hooded collar and armed 

 fore tibiae, are apparent. 



It will be seen that the genus Oticocnemis in North America is not 

 restricted to a mountainous country , although the majority of the spe- 

 cies yet known inhabit elevated lands. Nothing is known of the food- 

 j)lants or the larvae, even of the European species. To this point, 'the 

 attention of collectors in Colorado is invited. 



The following is the synonymy of the North American species of On-- 

 cocnemis: 



1. — Oncocnemis dayi. 



Oncocnemis claiji Grote, Bull. Baff. Soc. N. Sci.,i, 105, plate 3, fig. 8. 



Ifatite^.— Colorado (Mr. Theo. L. Mead, No. 17). In this and the fol- 

 lowing species, the hind wings are yellow, and this color obtains on the 

 under surface of both primaries and secondaries. 



2. — Oncocne]mis hayesi. 



Oncocnemis liayesi Grote, Bull. Buff". Soc. Nat. Sci., i, 106, plate 3, fig. 13. 



HaMtat.—ColoiMlo (Mr. Theo. L. Mead, No. 18). 

 3.— Oncocnemis glennyl 



Oncocnemis glennyi Grote, Bull. Buff'. Soc. Nat. Sci., i, 141, iilate 4, fig. 17. 



HaUtat— Colorado (Mr. Theo. L. Mead, No. 36, taken July 20). 

 4. — Oncocnemis behrej^si. 



Oncocnemis hehrensi Grote, Bull. Buff. Soc. Nat. Sci., ii, 65. 



Habitat. — California (Sanzalito, February 10 to 11). Taken by Mr. 

 James Behrens. This species is allied to the European Oncocnemis con- 

 fusa. 



5. — Oncocnemis Augustus. 



Oncocnemis augustus Harvey, Ball. Baft'. Soc. Nat. Sci., iii, 73, plate 3, fig. 5. 



Hahltat. — Bosque County, Texas (Mr. Belfrage, No. 524, October 7). 

 This species presents a casual resemblance to Milliere's figure of the 

 European Helioplio'bus Jiispidus, but the antenniB are impectinate. 



