Genus Papilio 
we have a fixed form breeding either toward bairdi or oregonia. 
To this form, characterized by more yellow on the bands of the 
wings than in P. bairdi , and less than in oregonia , Mr. Edwards 
has applied the name P. brucei , in honor of Mr. Bruce of Lock- 
port, New York, who has done much to elucidate the problems 
connected with the species. Expanse, 3.25-3.60 inches. 
Early Stages. —These have been fully described by Edwards. 
They are much like those of asterias , and the food-plants belong 
to the same class. 
Bruce’s Butterfly is found quite abundantly in Colorado. 
(16) Papilio hollandi, Edwards, Plate XL, Fig. 3, $ (Hol¬ 
land’s Butterfly). 
Butterfly. —This species or form, which belongs to the Aste- 
rias-group, in the breadth of the yellow spots on the upper side 
of the wings holds a place intermediate between P. bairdi 
and P. ^olicaon , between which it has been suggested that it 
may be a hybrid, which has become fixed, and therefore a spe¬ 
cies. It is characterized by the fact that the abdomen is always 
striped laterally with yellow or is wholly yellow. Expanse, 3.25- 
3. 50 inches. 
Early Stages. —We know as yet but little of these. 
The insect occurs in Arizona and northward to Colorado. 
(17) Papilio asterias, Fabricius, Plate XL, Fig. 1, $ ; Plate 
II, Figs. 17, 24, 27, larva; Plate VI, Figs. 13, 18, 19, chrysalis 
(The Common Eastern Swallowtail). 
Butterfly. —The male is well represented in the plate. The 
female lacks the bright-yellow band of postmedian spots on the 
primaries, or they are but faintly indicated. The species is sub¬ 
ject to considerable variation in size and the intensity of the 
markings. A very remarkable aberration in which the yellow 
spots cover almost the entire outer half of the wings has been 
found on several occasions, and was named Papilio calverleyi 
by Grote. The female of this form from the type in the author’s 
collection is represented in Plate XLI, Fig. 6. Expanse, 2.75- 
3.25 inches. 
Early Stages. —The caterpillar feeds on the Umbelliferce , and 
is common on parsley and parsnips in gardens. In the South 
I have found that it had a special liking for fennel, and a few 
plants in the kitchen-garden always yielded me in my boyhood 
an abundant supply of the larvae. 
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