THIRD FLOOR 23 
The next hall to the east (No. 307) is devoted entirely to 
Entomology. At the entrance is a large case containing speci- 
mens of Termites’ nests from Colombia, Jamaica and 
the Bahamas. Owing to their resemblance in appear- 
ance and in habits to ants, Termites are often incorrectly called 
“White Ants.”” They are found in the warmer parts of the 
world and are both useful and injurious. In uninhabited dis- 
tricts they feed mostly on dead wood, and are the means of 
clearing the forests of decayed trees. 
At the north of the entrance is the Jesup Collection of Eco- 
nomic Entomology, illustrating the life history of insects injurious 
to timber and shade trees. Each exhibit consists of Jesup 
the leaves or other affected parts of the tree, together Collection. 
with the chrysalis, the larva and the adult of the species. Each 
is accompanied by a descriptive label. 
This hall contains the collection of butterflies of America 
north of Mexico, and from other parts of the world, which was 
donated to the Museum by the late Very Rev. E. A goftman 
Hoffman. It contains about 2,000 species, represented Butterflies. 
by more than 5,000 specimens from Mexico, Central and South 
America, India, Malay Islands, Australia, Japan, Africa and 
Europe. The North American butterflies are installed in four 
cases along the west side of the hall, and nearly all the species 
found in this country are represented.. Among the most 
noteworthy species in the general series of the collection 
are the Brilliant Blue Morphos, Owl-faced Butterflies (Calzgo), 
the Swallowtails (Papilio) and the Citron, Orange, Lemon and 
White Butterflies belonging to the family Pieride. A beautiful 
example of Papilio homerus from Jamaica, B. W. I., and one of 
Dynastor napoléon from Rio Janeiro, Brazil, as well as many 
other rarities, are in the collection. 
The railing-cases of the gallery are filled with a collection of 
insects from New York City and vicinity. Passing to the left 
from the entrance the visitor sees in sequence the Local 
galls and their insects, the Bees (Hymenoptera), the —Imsects. 
Dragonflies (Neuroptera), the Grasshoppers (Orthoptera), the 
Beetles (Coleoptera) in extensive series, and the Butterflies and 
Moths (Lepidoptera). Guide Leaflets to the Butterflies (No. 7) 
Insects. 
