
No. 426.] ULULA HYALINA LATREILLE. 423 
failed, as did Guilding and Hagen, to work out the mouth parts 
thoroughly. A good description of the ant-lion’s mouth parts, 
which are very similar to those of the ascalaphid larva, may be 
found in a paper by Redtenbacher!as early as 1884. Hagen 
and Westwood do not appear to have been familiar with this 
paper. 
Ulula hyalina is distributed over the southern half of the 
United States, Mexico, and the West Indies, but is compara- 
tively rare in many of the places where it is found. The insect 
(Fig. 1) when at rest remains motionless 
on some small branch or stalk, head down, 
with wings and antennz closely applied 
to the branch, and abdomen erected and 
often bent so as to resemble a short 
brown twig or dried branch. On being 
approached, the insect moves to the oppo- 
site side of the branch, and, on being 
further disturbed, flies to another branch 
and alights with head up, then quickly 
turns and assumes its characteristic atti- 
tude. I found specimens on stalks of 
green sedge near the beach at Galveston, 
Texas. The insect contrasted strongly 
with the green stalk, but there were, 
near the tops of the stalks, brown Ni. uM Feu 
seeds which resembled the insect and iie, resting on a stalk of 
made it hard to find. gun mp. 
Guilding says the eggs (Fig. 3) are placed in double series 
of 64 to 75, near the end of a branch, and are fenced off by 
little rods, which he called *repagula" (Fig. 3), placed on end 
and arranged in circles around the branch below the eggs, 
thus preventing the approach of insects and the wandering 
abroad of young larvæ until they can climb over the repagula 
and have likewise acquired strength enough to resist ants and 
other insect enemies. I observed one of my specimens from 
Galveston deposit its eggs and repagula; but it was too weak 

1 Uebersicht der Myrmeleoniden-Larven, Den£schriften der Kaiserlichen Aka- 
demie der Wissenschaften, Bd. xlviii, Taf. VII. Wien, 1884. 
