190 ENTOMOLOGICAL NEWS. [December, 



to photograph a color key along with the subject, which shall 

 explain itself. The first picture, a print of eight butterflies, se- 

 lected on account of their varied colors, which comprised lemon- 

 yellow, brilliant blue, blood-red, orange, bright red and black." 

 The colors of the key are marked with letters which identify the 

 colors, and by comparing the key with the colors of the print, 

 the colors of the butterflies may be determined. We only have 

 sufficient space to quote a few sentences from this interesting 

 paper of Mr. Sachse, and will merely state that the paper attracted 

 great attention, both here and abroad, and it has been translated 

 into several languages and reprinted in some of the English pho- 

 tographic journals. This plate, like others we have published, 

 was made by the Crosscup & West Company of Philadelphia, 

 and we are indebted for the loan of the plate to the kindness of 

 Mr. Sachse. 



-o- 



The Sphingidae of Colorado. 



By DAVID BRUCE. 



1. Hemaris sp. ? A small species, is not uncommon among 

 yellow flowering Ribes in May and early June, near Denver and 

 just in the foothills; it is very like H. rubens H. Edw. , but is 

 smaller; it agrees pretty well in size and color with Mr. Strecker's 

 description of H. senta, and may be that species. 



2. Hemaris Brucei French. On blossoms of Mertensia in 

 July, above 10,000 feet elevation near South Park; not common. 



3. Lepisesia flavofasciata Barnst. On flowers of Ribes in June, 

 same places as last species; have taken the larva and bred it; it 

 feeds on Epilobium in August; not common. 



4. Lepisesia Clarkice Bdl. Not rare in western Colorado in 

 June; very partial to flowers of Phlox and allied plants, and when 

 thus engaged, easy to capture. 



5. Amphion nessus Cram. Not uncommon in Clear Creek and 

 Platte Canons below 6000 feet elevation; fond of damp places by 

 the sides of irrigating ditches, frequently alighting on mud; this 

 habit I have not observed in any other of the Sphingidae. 



6. Deilophila Chamoenerii Harr. Common throughout Colo- 

 rado and frequent at light; I have found the larvae on Epilobium. 



7. Deilephila lineata Fab. Abundant everywhere, flying by 



