1932 ] Notes on Cuban Wasps and their Parasites 9 
vertical shaft, ten or more centimeters deep, and a sloping 
tunnel, five or six centimeters long, which ended in a single 
cell. I found extra cells in only one nest, but there may 
have been several cells in each burrow, which I failed to 
find because the tunnels were stopped up. 
In all the completed cells, the larvse had spun their co- 
coons, leaving only a few chitinous fragments of the prey, 
such as wings, legs, and ovipositors. From an examination 
of these remains, Mr. J. A. G. Rehn was able to assign 
them to Conocephalus sp. 
The cocoon is composed of three layers. The whitish 
outer layer is yellowish at the apex, finely woven, and trans- 
parent; the middle layer is a thicker envelope of the same 
material; the brown inner layer is closely associated with 
the middle envelope and probably formed of some waste 
secretion. The meconium is apparently voided within the 
inner layer, and its concave upper surface is smooth and 
shining like the inside of the cocoon. 
In the four adult females which I caught at this locality, 
none of the abdominal segments are wholly black, and only 
traces of the typical black coloration remain. 
Chlorion (Ammobia) cubensis Fern. 
Mr. S. C. Bruner found this species with a paralyzed 
long-horned grasshopper at Sante Fe, Isla de Pinos, Sep- 
tember 6, 1928. The grasshopper, determined by Mr. J. 
A. G. Rehn, was a mature female of N eo conocephalus max - 
illosus (Fabr.). The wasp was dragging its prey through 
open piney woods. It was holding the fore part of the 
grasshopper’s body and walking backwards. Mr. Bruner 
watched the wasp climb the trunk of a tree, still pulling 
its prey behind it, until it reached a height of about two 
meters. The wasp and grasshopper were then captured. 
This suggests a similar habit of Sphecius speciosus 
(Drury), which preys on cicadas. When Sphecius is tak- 
ing a heavy cicada to its burrow, it frequently drags its 
prey up a tree, and then, taking advantage of the height 
attained, flies directly to the nest. 
