DIVISION OF INSECTS ALDRICH. 375 
In Diptera — 
J. M. Aldrich, custodian. 
Charles T. Greene, honorary assistant custodian.' 
H. G. Dyar, mosquitoes.* 
In Isoptera — 
T. E, Snyder.' 
In Arachnida — 
H. E. Ewing.' 
In Myriopoda — 
O. F. Cook, honorary custodian." 
In addition to the scientific staff as listed, there are 10 preparators 
and clerical helpers furnished by the Bureau of Entomology and 
two furnished by the Museum. 
ILLUSTRATIONS. 
Since the division, owing to the peculiarity of its organization and 
the nature of its material, is not able to reach the public to any 
great extent with exhibits up to the present, a few plates have been 
specially prepared from Museum specimens to accompany this 
article. Some of these represent groups of insects from a local 
standpoint with notes on habits; other plates show related insects 
from a distant region or from scattered localities. Species of beau- 
tiful colors or striking form have to some extent been favored in 
making the selections, and it has not been thought inconsistent with 
a popular aim to include many rarities which have never before 
been figured. Acknowledgment is made to the Bureau of Ento- 
mology for the services of Mr. Snodgrass and Miss Carmody. 
EXPLANATION OF PLATES. 
Plate 1. 
Ground plan of rooms occupied by the Division of Insects, on the third floor 
of the new National Museum. 
Plate 2. 
One steel cabinet unit, open to show drawers containing the pinned insects. 
Below, one drawer filled with unit trays for small insects; another containing 
large insects not in unit tray.s. 
Plate 3. 
Eitrycanflm hornda Boisd. From New Guinea. Natural size. Belongs to the 
walking-stick family of the order Orthoptera. The specimen is a female, 
and this sex has not heretofore been figured. 
3 On the Bureau of Eutomolo^ staff. ^ On the Bureau of Plant Industry staff. 
* Voluntary, donating thoir services. 
