i6i 



no red was present in these. Still others have no trace of a sub-dorsal 

 band, and are like Philodice. The same variation appears in Eury- 

 theme larvae, as may be seen by reference to the plate of that species, 

 in vol. 2, But. N. A., where larvae, banded and not banded, stand side 

 by side Some Eurytheme also have sub-dorsal lines instead of bands, 

 without red. But, in Eurytheme, the red is not within the band, but 

 over it in broken bits, and under the bands are often black points. 

 All Colias larvae are very much alike, being uni-colored and the longi- 

 tudinal bands, when present, afford the best possible characters for dis- 

 tinguishing the species. Philodice I have often bred from the ^gg, 

 and I raised two broods of larvae this summer, and no example has ever 

 shown a sub-dorsal band or line. From banded larvae Mr. Nash ob- 

 tained chrysalids, which were sent me, and gave butterflies here, 

 Hagenii. Mr. Nash says, August 21: "I send you 4 larvae of the 

 Colias. Three of them have a sub-dorsal line, the other has none. 

 Out of 24 nearly full-grown larvae that I have, 14 have the sub-dorsal 

 line." Again; "I send you a chrysalis from the caterpillar I wrote 

 you of, as having a sub-dorsal stripe of white and red. It changed 

 yesterday.'' All these chrysalids, from caterpillars with and without 

 sub-dorsal bands, I received, and they gave images, all same species, 

 C. Hagenii. Again, Mr. Nash writes, 24th August : *' I have two 

 larvae about to pass 4th moult that have the sub-dorsal bands very 

 distinctly marked." On 28th: "I send one of the larva of which I 

 wrote you, in alcohol, past 4th moult, with wide sub-dorsal lines and 

 red running through them; the other is marked in same way, except 

 that the lines are not quite so wide. I will send the chrysalis in a few 

 days.'' This chrysalis was received and produced Hagenii. I give 

 below a description of this species: 



12 Argtxnis Leto Behr. 



13 " Aphrodite Fab. 



14 " CoRONis Behr. This species flies from southern Cali- 



fornia to B. Am. 



15 " Edwardsii Reak. 



16 " EuRYNOME Edw. 



17 " var. Erinna Edw. 



18 " MoNTicoLA Behr. 



19 Melitaea Palla, Bd. 



** HoFFMANNi, Behr. 



20 Phyciodes Tharos Drury. 

 ai Vanessa Antiopa Linn. 



22 Grapta Satykus Edw. 



23 " Zephyrus Edw. 



24 " SiLENUS Edw. 



25 LiMENiTis Weidemeyerii Edw. 



26 Satyrus Nephele, var. Olympus Edw. 



27 COENONYMPHA OcHRACEA Edw, 



