228 THE CA.NADIA.N ENTOMOLOGIST. 



much covered with small black tubercles, the hairs from which are short, 

 straight, and over dorsum, black, but on the sides, gray ; along base a 

 white band, with broken dashes of red-orange running through it ; head 

 rounded, depressed at top ; color yellow-green, studded with black tuber- 

 cles, which give short black hairs. From fourth moult to pupation 13 

 days, in April. 



CHRYSALIS. — Length .8 inch, greatest breadth .2 inch, depth .26 

 inch; shape of Eurydice and Philodice ; compressed laterally, the thorax 

 prominent ; the head case pointed, beak-like ; the mesonotum rounded 

 (almost angular) ; color yellow-green, the dorsal side darker than ventral ; 

 on ventral side of abdomen next wings three small reddish spots in line. 

 Duration of this stage g and 10 days. 



On 29th July, 1884, I received 16 young larvae, hatched en route, 

 from Rosita, Col., sent by Mr. H. W. Nash, the eggs laid 23rd and 24th 

 July, on Astragalus. On 2nd Aug., they began to pass first moult, on 8th 

 the second moult. Shortly after, they became lethargic, and I sent them 

 to Clifton Springs, New York, to be placed in the " Cooler " for the 

 winter. On 7th March, 1885, I received them from Clifton, all dead but 

 one, and this died a few days later. 



On T8th Aug., 1886, I received six larvae hatched e?i route, sent from 

 Central City, Col., by Prof G. H. French, the eggs having been laid on 

 Thermopsis Tabacea var. Montana. These larvae began to pass first 

 moult, 25th Aug.; the second moult was overlooked ; on 4th Sept., two 

 out of five larvae became lethargic, and by nth Sept., the other three 

 had gone same way. In October, all six were sent to Clifton Springs. 

 These came back alive, 21st March, 1887, and were placed on white clover 

 in pot, and covered by muslin bag. On ist April, they were first noticed 

 as feeding ; on 7th, one larva passed 3rd moult ; this one passed 4th 

 moult, 13th April, and pupated 26th April. The imago came on 6th 

 May, a female of type Edwardsii in some important points, the marginal 

 borders to fore wings being unusually broad and heavy. 



The second larva passed third moult on 15th April, the fourth on 

 25th, pupated 5th May, and the imago came out 14th May, a female, 

 typical Alexandra, with no borders whatever. This one was like the 

 parent female, and consequently the spring butterfly in this case was like 

 the fall butterfly that produced it. 



On 28th June, 1887, I received four young larvte from Central City, 

 the eggs having been obtained by Master William Lake, at the request of 



