138 
Psyche 
['December 
rounded at apex, with two cross rows each of five long, 
curved bristles, the anterior row on the right side and me- 
dially somewhat overlapping the posterior row (which is 
on the left side) as the anterior row extends well to the 
left of the median line ; all these bristles curved toward the 
righthand side. Fifth sternite with a close series of about 
six stout bristles. Legs long and slender; front tarsi not 
modified in any way. Front tarsi with the first joint almost 
as long as the tibia; second and fifth joints each half as 
long as the first; fourth one-fourth shorten Hind tibia 
with a dorsal hair-seam and a series of very minute setulae 
just internal to this, these setulae not much larger than the 
hairs that clothe the inner surface of the tibia; tibia at 
apex with one small bristle inside the seam; hind femur 
simple, without long hairs below. Ovipositor of the usual 
hypopygium-like form; shining black in color with a long 
finger-like process above that curves to the left and is pro- 
vided near its base with two transverse bristle-like spines 
that extend horizontally to the left ; below with a short pro- 
cess apically, terminating in a twisted hook. Wing similar 
to that figured by Borgmeier for C. pilosa. Costal vein ex- 
tending to slightly beyond the basal third of the wing its 
bristles long; first section more than twice as long as the 
second and third together; third not quite half as long as 
the second; fourth vein entering the margin at tip of the 
wing ; fifth lying very close to the fourth. 
One female collected by Dr. J. G. Myers in Trinidad, 
B. W. I., November 25, 1928, “hovering constantly close 
over the backs of ants engaged in raiding a termitarium 
(Eutermes) .” So far as is known the numerous South 
American species of this genus are ecitophiles. 
In Borgmeier’s key to the Brazilian species of this genus 
(Arch. Inst. Biol., Sao Paulo, vol. 1, p. 161, 1928) this spe- 
cies will run to C. brasiliensis from which it differs in the 
bristling of the terminal abdominal segments, especially in 
the very stout, straight bristles on the sixth sternite. It is 
also a much smaller species. 
