OF INSULINDE. 39 
The spines and bristles are very numerous and long. 
In the other stages the head increases in breadth, the 
antennae appear somewhat shorter and the two last segments 
of the thorax form with the abdomen the enormous conical 
Myrmeleon frontalis Burmeister. Myrmeleon frontalis Burmeister. 
Larva, 1st stage. Larva, adult stage. 
sack on which a curious dark brown pattern is visible on 
the yellowish brown underground. The black spines are 
directed forwards and have become very short. The pygidium 
is trapeziform. The adult stage (fig. 17) is 11 mm. long. 
The larvae live near the houses, under the verandas, where 
the cement of the galeries is weatherbeaten into a kind 
of brown sand, As they are there protected against the 
rain, they are often so numerous, that 70 pitfalls were 
found by Mr. Jacobson on '/, M?. and there would cer- 
tainly be still more, if this spot had been without stones 
and other obstacles. 
The duration of the metamorphosis is probably about one 
Notes from the Leyden Museum, Vol. XX XI. 
