154 Annals Entomological Society of America [Vol. VII, 
and ventral abdominal segments 1-5 with bands of appressed white 
pubescence; first abdominal segment rather coarsely and closely punc- 
tured; second and third segments with distinct, complete, transverse 
impressions, the second with rather fine punctures basad of its impres- 
sion, the punctures about a puncture width apart; apicad of the impres- 
sion, the punctures sparse averaging two or more times a puncture width 
apart and finer and sparser toward middle, third segment basad of 
impression with the punctures somewhat wider apart than on base of 
second segment; apicad of the impression the punctures about as far 
apart as‘on apical part of second segment; fourth and fifth segments 
apically punctured about as apex of third segment; sixth segment with 
a distinct median longitudinal carina, basally finely punctured, the 
punctures slightly more than a puncture width apart; apically the 
punctures become slightly larger and crowded; near apex on each side 
of the median carina a depressed area bounded laterally by an elevated 
margin which is very indistinctly irregularly carinated; ventral segments 
1-4 coarsely, closely punctured; fifth coarsely punctured at base, the 
apical part minutely very closely punctured; last ventral segment with 
the sides emarginate near apex. 
Type-locality: Ithaca, New York. 
Described from one specimen with the record, July, 1-7; 
from the collection of Mr. Nathan Banks. 
Type—Specimen: Cat. No. 18220, U.S. N. M. 
This species resembles C. deplanata, but differs as shown in 
the table and also by the sparser punctures on the abdominal 
segments apicad of the transverse impressions on second and 
third segments and by the sparse punctures on segments 4 and 5. 
In deplanata the punctures on the last segment are coarser at 
base, the impressions near apex are not so deep nor do they 
extend so far laterad. 
This species differs from C. ammaculata Ckll. described only 
in the male sex in the punctation of the second abdominal 
segment beyond the transverse impression and since the two 
sexes in this genus agree very closely in such characters, I do 
not think it possible for this species to be the same as the one 
described by Prof. Cockerell. 
Ccelioxys sayi Robertson. 
C. octodentata Cresson (not Say). 
The synonomy of Mr. Robertson of this species and of 
C. octodentata Say (C. altilis Cress.) is adopted for it is evident 
that he has correctly interpreted the original description of Say. 
