298 Annals Entomological Society of America [Vol. V, 
State Entomologist says that Scolia flavifrons attaches its egg 
to the venter of the larva of a common European lamelicorn 
beetle larva. Ashmead, Can. Ent. 35, states: “So far asus 
known the species are parasitic upon the larve of ground 
beetles belonging to the family Scarabeide and probably also 
upon other ground inhabiting beetle larve.”’ 
The following is a translation from Burmeister (Naturf. 
Ges. Halle): To see strange insects emerge from ant heaps is 
always surprising to the entomologist; he has every reason to 
assume that, if this is repeated often, then a normal condition 
exists. This is true of Scolia campestris of Brazil. I am there- 
fore inclined to the opinion the Scolia campestris lives in the 
inside of the ant hills as larvae and probably feeds as a parasite 
on the larve of the Atta cephalotes. 
Such observations as the above would seem to imply that 
the insects belonging to the family Scoliude are parasitic on 
larve of a great many insects and that they are solitary, never 
living together in numbers in the same nest. The males are 
very apt to frequent highly scented flowers and a great many 
that the writer has examined show this, because the body, 
usually quite hairy, is well covered with pollen grains in many 
cases. So little data has been submitted on the habits and life 
of this group that an investigation of them should prove worth 
while and very interesting. 
EXTERNAL ANATOMY. 
HEAD. Viewed from in front the hypognathous head is 
subcircular but apparently elongated beneath by the projecting 
mandibles. At the sides are the somewhat kidney shaped eyes, 
made so by a deep emargination just above the middle of the 
inner borders which leaves the lower lobe much larger. In 
the male the emargination is well up toward the top of the 
head causing the lower lobe to be comparatively much larger 
than in the female. 
Clypeus. ‘The clypeus extends downward from the bases 
of the antenne, its edge between these points being emarginated. 
Laterally it extends nearly to the eyes, the suture curving 
downward somewhat, and is separated from the eye by a narrow 
extension downward of the frons. Its lower margin varies 
from a broad gentle curve to nearly a straight line in some cases 
and this margin is liable to be reflexed. In the male the clypeus 
