326 NEW YORK STATE MUSEUM 
width of the segment; the sternum of the thorax and abdomen 
pale except a spot on either side of the thorax laterad of the 
legs and homodynamous spots on each abdominal segment, a_ 
spot on either side mesad of the spots just described, and a 
median broad spot; and the last ventral abdominal segment with 
a well developed proleg, legs blackish except at the sutures. 
Pupa. Black, except the sternum of the thorax and abdomen, 
the apical segment of the abdomen which is covered by the cast 
larval skin, the basal segments of the legs, and a median tergal 
line which are yellowish; the legs, wing pads, and antennae not 
closely joined to the body; the very young pupae are lighter in 
color. Length, 7mm; width, 4mm. 
Described from specimens collected at Ithaca N. Y. and from 
Saranac Inn N. Y. by J. G. Needham. 
ACKNOWLEDGMENTS 
I am indebted to Mr J. O. Martin for assistance and many 
Suggestions while carrying on the field work, to Mr Samuel Hen- 
Shaw for the loan of the larvae and cocoons in the Museum of 
Comparative Zoology, to Dr L. O. Howard for the loan of the 
material in the United States National Museum, and to Prof. 
J. H. Comstock and Mr W. A. Riley for help on all parts of the 
work. 
Bibliography of the transformations of the Donaciinae 
DONACIA 
aequalis Say 
1903 MacGillivray, N. Y. State Mus. Bul. 68, p.321 
bicolor! Zschach 
1848 ‘Perris, Ann. Soc. Hnt. Fr. (2) 6:33-48, pl.2 
1853 Candeze, Soc. Se. Liege. Mem. yv.8, pl.9, 1 
cincticornis Newman 
1877 Packard, U. S. Geol. Geog. Sur. Rep’t for 1875. p.806—7, pl.70, 17-19 
1903 MacGillivray, N. Y. State Mus. Bul. 68, p.317 
clavipes! Fabricius 
1810 Germar, Neue Schrift. Ges. Halle. v.1, Heft 3, p.9 
1854 Heeger, Sitz. Wiss. Wien. 14:28—40, pl.5 
1874 Kaltenbach, Pflanzenfeinde, p.711 
1883 Kittel, Corrbl. Natury. Ver. Regenb. 38:149-50 
*The European species are marked in this way. 
