schaeffer: donaciini of the new world. 113 
Massachusetts; Cambridge (Crotch in coll. Mus. Comp. Zool.) ; Framing- 
ham, July (Frost). 
New York : Rockaway Beach, Long Island (Shoemaker) ; Kingston, 
July (N. Y. State Mus.); Long Lake, Hamilton Co. (Davis). 
New Jersey : Lakehurst (Davis, Engelhardt) ; Pt. Pleasant, July (Schott) ; 
N. Lisbon, June (Liebeck) ; Anglesea, July (ex Nicolay); Bamber, 
June, Malaga, May and June, and Hammonton, July (Wenzel). 
Mr. Frost has taken this species by "sweeping in meadow" and Mr. 
Wenzel on several plants as follows: 
"At Bamber, N. J., June 9, found in numbers on Castalia odorata. 
Females bore into the heart of flowers where mating takes place, as 
many as three pairs taken from flowers, no specimens taken from leaves. 
At Malaga, N. J., June 18, specimens taken from flowers of Nymphaea 
advena. At Hammonton, N. J., July 16, in flowers of Castalia odorata." 
Mr. Julius Weise changed the name to megalocera being of the 
opinion that a name coined from two languages is not admissible. 
However, as I am unable to find any rule against this, I restore Mr. 
Blatchley's name to this species. 
Both species megacornis and liehecki are more closely allied to each 
other than to any other species. The former, however, is a stouter and a 
little more convex insect, the elytra more distinctly narrowing to apex 
and the posterior femora is armed below in both sexes with a rather 
large, triangular tooth, which is serrulate behind and the antennae are 
always unicolored red, at least in all the specimens which I have seen. 
D. aequalis is also a rather short insect but cannot be confused with 
megacornis. The head in the latter is strongly narrowed behind the 
eyes, the prothorax has scarcely any visible lateral tubercles and no 
anterior impression, the elytra are more converging behind and the 
surface is much more coarsely sculptured. 
DoNACiA AEQUALIS Say. 
Rather short, oblong, depressed; color aeneous, cupreous, metallic 
green, blue or black; the last, or the last two or three ventral segments 
more or less reddish; antennae entirely black or the joints more or less 
red at base; legs reddish, femora at apical half metallic, tibiae frequently 
towards apex entirely metallic. 
Head scarcely narrowed and feebly constricted behind the eyes, 
which are moderately large; median impression moderate; posterior 
tubercles absent; surface densely and moderately finely punctate; 
antennae extending nearly to the middle of the elytra in the male and 
