BUTTERFLIES OF THE VICINITY OF NEW YORK CITY 



miles of New York City and is intended to be used not only in 

 connection with the Local Collection on exhibition in the Mu- 

 seum, but also as a concise handbook for the purpose of identi- 

 fying the species in the field. The butterflies found in the 

 vicinity of this city are representative of four families, the 

 Papilionidae, the Nymphalidae, the Lycaenidae and the Hesperidae, 

 and will be described in that order. The figures used in illus- 

 trating the species are all natural size, and most of them show 

 the under as well as the upper side of the wings. Some of the 

 figures illustrate also the wings of the female. The collection 

 has been installed in the flat cases on the railing of the gallery 

 in the Central hall of the third floor. 



Family PAPILIONIDAE. 



The butterflies of this family found in the vicinity of New 

 York are divided into two subfamilies: viz., Papilioninae and 

 Pierinae. 



Subfamily Papilionin^:. 



These are large butterflies, commonly known as Swallowtails, 

 because of the tail-like appendages on the hind wings. In the 

 tropics some species occur without these tails. The antennae are 

 slender, the knob at the tip either straight or curved. The body 

 is provided with six feet fitted for walking. The caterpillars are 

 usually smooth or are provided with fleshy protuberances, and in 

 the upper part of the first segment is a forked scent-organ which 

 may be thrust out or drawn in at will. This organ gives off a 

 disagreeable odor when extended, which serves as a protection 

 to the caterpillar. The chrysalids are attached by the tail to a 

 button of silk, and the body is suspended obliquely in a loop of 

 silk that passes around it a little in front of the middle. The 

 species of Papilio may be separated readily by the following 

 synoptic table : 



