Vol. xxvii | ENTOMOLOGICAL NEWS. 317 
Males of this species were sent to Dr. Calvert and Dr. Ris. 
Dr. Ris writes, “It is almost exactly similar to a few Acan- 
thagrions taken by myself in Bahia in 1890; I have considered 
them nearly typical gracile.” Dr. Calvert says, “It is nearer 
gracile minarum than no. 2 (indefensum) is. I am inclined 
to so consider it; almost the only objection is the presence of 
black stripe on second lateral thoracic suture.” In view of 
these opinions any comment on the difficulty of recognizing 
this species is superfluous. 
In Calvert’s key to the males of Acanthagrion of the gracile 
group (Od. Neotrop. Reg., Ann. Carnegie Mus., Vol. VI, pp. 
161-2) kennedii will run out to gracile or g. minarum. Mina- 
rum was described by de Selys from material from Minas 
Geraes. It is possible it may prove to be specifically distinct 
from gracile, but there is no reason to think it is the same as 
the species here described from Trinidad. Vidua de Selys, 
from Venezuela, might possibly be expected in Trinidad, but 
it is not represented in the material before me unless ascen- 
dens should turn out to be a synonym, which I think is im- 
probable. 
Compared with material from Guatemala determined by 
Calvert as gracile,* males of kennedu differ in the blue color of 
the head, thorax and basal abdominal segments of gracile be- 
ing replaced by green and yellowish, thus approaching ascen- 
dens. A comparison of the descriptions will show that black 
is more extensive on the head and thorax of kennedit than of 
gracile. In posterior views of the male appendages, the su- 
perior appendages of gracile are seen to be longer (higher) 
with the superior rounded angle reaching well above the con- 
striction in the dorsal elevation of segment 10; in kennedit 
the appendages reach this constriction but do not extend above 
[*Since this paper was written, a study of the penes of specimens in 
the Cornell and Harvard collections has brought to light two more spe- 
cies included under the name gracile. As both are from Brazil it may 
be that one or the other of these will be found to agree with the type 
of gracile in the Selys collection. Neither of these Brazilian species are 
described or figured in Mr. Williamson’s article or in my own in this 
number of the News.—C. H. Kennepy.] 
