Genus Euchloe 
(4) Euchloe rosa, Edwards, Plate XXXII, Fig. 39, 6 , under 
side (Rosa). 
Butterfly. —Pure white, without any red at the tip of the pri¬ 
maries. The transapical black band is broken in the middle, 
and a black bar closes the cell. The under side is well repre¬ 
sented in the plate. Expanse, 1.35-1.40 inch. 
Early Stages. —Entirely unknown. 
The species is found in Texas. 
(5) Euchloe cethura, Felder, Plate XXXII, Fig. 26, S ; Fig. 
27, $ ; form morrisoni, Edwards, Plate XXXIV, Fig. 1, $ (Ce¬ 
thura). 
Butterfly. —This delicate little insect, for the identification of 
which 'the plates will abundantly serve, has been regarded as 
existing in two varietal forms, one of which has been named 
after the indefatigable collector Morrison, whose death is still 
lamented by the elder generation of American entomologists. 
The varietal form is characterized by the heavier green markings 
of the under side of the wings. Expanse, 1.25-1.40 inch. 
(6) Euchloe pima, Edwards, Plate XXXII, Fig. 33, $ (The 
Pima Orange-tip). 
Butterfly. —This beautiful and well-marked species, the most 
brilliant of the genus, is yellow on the upper side in both sexes. 
The red of the upper side appears on the lower side. The hind 
Wings are heavily marked with solid green bands. Expanse, 
1.50 inch. 
Early Stages. — Unknown. 
The only specimens thus far known have come from Arizona. 
(7) Euchloe genutia, Fabricius, Plate XXXII, Fig. 37, $ ; 
Fig. 38, $ ; Plate II, Fig. 5, larva; Plate V, Fig. 59, chrysalis; 
Fig. 6, p. 4, egg (The Falcate Orange-tip). 
Butterfly. —This species is readily recognized by the decidedly 
falcate tip of the fore wings. The first brood appears in early 
spring. It is single-brooded in the Northern States, but is double- 
brooded in the western portions of North Carolina, where I have 
taken it quite abundantly late in the autumn. Expanse, 1.30-1.50 
inch. 
Early Stages. —The life-history is well known. The caterpil¬ 
lar feeds on Sisymbrium , Arabis , Cardamine, and other crucifer¬ 
ous plants. 
It ranges from New England to Texas, but is not found, so 
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