506 
Trochilus alexandri, 344. 
colubris, 344. 
Tropidoleptus carinatus, 35. 
Truro, Mass, fossiliferous boulders 
from, 36. 
UpHAM, WARREN. Glacial drift of 
Boston and vicinity, 220. 
Uranomitra cyanocephala, 350. 
franciae, 350. 
quadricolor, 350. 
Urethra, larvae of insects discharged 
from, 107. 
Urosticte benjamini, 343. 
Volcanic and sedimentary rocks in 
Brighton, Mass., 129. 
WavswortH, Dr. M. E.  Danalite 
from the Iron mine, Bartlett, N. 
H., 284; Picrolite from a serpen- 
tine quarry in Florida, Mass., 286; 
discussion on compression of 
rocks, 313; remarks on conglom- 
erates, 405; origin of the iron- 
ores of Marquette, L. Superior, 
470. 
Walker Grand Prize, awarded to Dr. | 
J. Leidy, 405. 
White ant, 118, 121. 
Wraicat, Rev. G. Frep. Kames and 
Moraines of New England, 210. 
Xantho, 9-dentatus, 153. 
Xema Sabini, 275. 
ERRATA. 
Page 198, 19th line from top for ninth read n™ 
Page 194, 2nd equation from bottom for —=z”—" etc., read 2h”—ete. 
Page 263, for Rev. E. Wadsworth read Dr. ete. 
Page 315, 4th line from bottom, for microscopic read macroscopic. 
Page 402, substitute for the first two lines: 
Female being unlike that of Cerceris, in the simple posterior tarsi of the 
male, and in the long bristles on the anterior tarsi of the female. Spinola 
describes a row of parallel spines on the anterior tarsi of Nectanebus in both 
sexes alike, but his figures in Guerin’s Magazin de Zoologie, 1840, show these 
spines to be short as in Cerceris. Doubtless there will be found to be differ- 
ences also in the dentition of the mouth parts when these characters are studied 
in Nectanebus. 
- | 
» + 
i 
7 
