I have tried for several years past to raise larvæ of Satyrus nephele to maturity, but met with no success till this last spring. It is very easy to obtain the eggs by confining the female with a tuft of grass. I tied a gauze bag on such a tuft set in a flower pot, while in the Catskills, and 21st August, 1876, obtained perhaps fifty eggs. Some were laid on the blades and stems of the grass, but many were dropped loose on the ground. The eggs hatched about the 21st of September, and the young larvæ without feeding entered upon their hybernation.

In “The Bulletin of the Geo. Survey,” v. 3, p. 134, I have referred to two species or varieties of Batrachedra found by me in Colorado. Some of these specimens found at Colorado Springs I referred doubtfully to the European species B. præangusta. others found higher up the mountains I named B. Clemensella, stating, however, the doubt whether the two forms were really distinct. After the grerter portion of that paper was in the hands of the publisher, I received from Mr. Stainton two specimens of præangusta, by which I was enabled to recognise my B. Clemensella as a variety simply of that species, and to increase my doubts whether the supposed species were really distinct

This form, or species, belongs to the series of walkeri and vinulenta, of the former of which I was at first disposed to consider it a variety. It is distinguished by the presence of all three of the ordinaly spots. Rusty ochre; t. a. line single, evcn, blackish with the small rusty outlined claviform attached. Orbicular rusty-ringed, with pale centre, sma11. Reniform pale ochre, rusty-ringed, well sized, of the ordinary shape, with a black inferior stain. Median shade a little waved, joining the reniform above and issuing from it inferiorly.