joint of all the tarsi beneath, as well as a lino under the four anterior tibiae, 
S rufous, apical joint of all the tarsi dark piceous, joints two to four paler ; 
posterior coxae with a short curved spine at the tip, within ; posterior tibiae sub- 
tnangular, the lower face produced at the apex into a three-toothed process, the 
exterior tooth the longest, and forming a spine, the middle tooth shortest, blunt ; 
Canaria whitish, the point of the anterior calcaria not so long as in the female, the 
posterior calcaria unusually remote, arising from the bases of the outer teeth of the 
process, the exterior tooth about two-thirds the length of the corresponding spur; 
the lower face of the basal joint of the posterior tarsi flattened, expanded within 
and glabrous. Abdomen shining, clothed with a scattered white pubescence, which 
is more dense on the sides, the depressed apical margins of the segments polished, 
the apical margins of the third and the four following segments with a narrow white 
fringe, that on the third segment interrupted, on the fourth slightly interrupted. 
Abdomen beneath very smooth, the apex of the third and fourth segments with a 
single, slightly arcuated, row of golden hairs, the end of each hair regularly curved ; 
the apex of the fifth segment with a similar, but less regular, row of hairs ; the 
visible portion of the sixth segment forming an angle with the concealed portion, 
triangular, the two posterior sides margined with a short dense golden pubescence. 
The exterior clasps of the forceps expanded and deeply emarginate at the tip. 
Described from five specimens taken at New Haven, Ct., on the 
flowers of Rubus villosus, June 22nd; and one specimen taken at 
A\ aterbury, Ct., on the flowers of Cornus paniculata , July 4th. 
Macropis patellata, n. sp. 
S • Differs from HI. cihata , J , in the following particulars : — 
Joints five to twelve of the antenme each slightly shorter than joints three and 
four taken together, making the antennae as a whole slightly shorter than in ciliata. 
Labrum yellow. Base of the tibiae with a yellow spot externally, which, in the 
posterior legs, extends upon the tips of the femora. Ciliation of the ventral segments 
white. The process at the apex of the posterior tibiae represented by the exterior 
tooth only, forming a stout, obliquely-truncated, projection, reaching to the middle 
of the exterior spur ; the calcaria not so remote as in ciliata ; the lower face of the 
basal joint of the posterior tarsi slightly sinuous within, but not expanded. Exterior 
clasps of the forceps broadly cleft, forming two narrow lobes. The retracted ventral 
segments present other distinctions. 
Taken by Mr. H. F. Bassett on the flowers of either Oicuta or 
Rhus at Plymouth, Ct., August 1st ; and by me on Lysimachia ciliata 
at Waterbury, Ct., July 9th. 
A female specimen taken with the males differs from the typical 
females of M. ciliata in no respect, except that the fimbria on fifth 
segment of abdomen has a golden tinge and the tegula? are dark 
piceous. 
As the males of ciliata and patellata differ in those characters only 
•j 
which are peculiar to that sex, it seems not unlikely that the females, 
