Genus Tachyris 
with white, resembling the cnrysalids of the genus Colias, but 
somewhat more slender. The caterpillar feeds upon conifers. But 
one species is known. 
(i) Neophasia menapia, Felder, Plate XXXIV, Fig. 7, $ 
(The Pine White). 
Butterfly .—The insect on the under side sometimes has the 
outer margin of the secondaries marked with spots of bright pink¬ 
ish-red, resembling in this style of coloration certain species of 
the genus Delias of the Indo-Malayan fauna. 
Early Stages .—These have been thoroughly described by Ed¬ 
wards in his third volume. The caterpillar infests the pine-trees 
and firs of the northern Pacific States. The larva lets itself down 
by a silken thread, often a hundred feet in length, and pupates on 
the ferns and shrubbery at the foot of the trees. It sometimes 
works great damage to the pine woods. 
Genus TACHYRIS, Wallace 
** The virtuoso thus, at noon, 
Broiling beneath a July sun, 
The gilded butterfly pursues 
O’er hedge and ditch, through gaps and mews; 
And, after many a vain essay 
To captivate the tempting prey, 
Gives him at length the lucky pat, 
And has him safe beneath his hat; 
Then lifts it gently from the ground; 
But, ah!’t is lost as soon as found. 
Culprit his liberty regains, 
Flits out of sight, and mocks his pains.” 
Cowper. 
This genus, which includes about seventy species, may be 
distinguished from all other genera belonging to the Pierince by the 
two stiff brush-like clusters of hairs which are found in the male 
sex attached to the abdominal clasps. All of the species belong¬ 
ing to the genus are found in the Old World, with exception 
of the species described in this book, which has a wide range 
throughout the tropical and subtropical regions of the New 
World. The peculiarities of neuration are well shown in the 
accompanying cut, in which the hind wing has been somewhat 
unduly magnified in proportion to the fore wing. 
Early Stages .—The life-history of our species has not been 
thoroughly studied, but we have ascertained enough of the early 
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