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 homodjnamous 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 prolog, 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. 0. 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. Bui. 68, p.321 



bicolor^ Zschach 

 1848 PeiTis, Ann. Soc. Ent. Fr. (2) 6:33-48, pl.2 



1853 Candeze, Soc. Sc. Liege. Mem. v.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. Bui. 68, p.317 



clavipes^ Fabricius 



1810 Germar, Neue Schrift. Ges. Halle, v.l. Heft 3, p.9 



1854 Heeger, Sitz. Wiss. Wien. 14:28^0, pl.5 

 1874 Kaltenbach, Pflanzeufeinde, p. 711 



1883 Kittel, Corrbl. Naturv. Ver. Regenb. 38:149-50 



^The European species are marked in this way. 



