BIOLOGICAL NOTES 
ON SOME 
ee ee ete EEN NL A 
FROM JAVA 
BY 
EDW. JACOBSON. 
The following observations were made during my stay in 
Java. The insects referred to, have been recorded by the late 
Dr. H. *W. van der Weele in a systematic paper : » Mecoptera 
and Planipennia of Insulinde« in the Notes from the Leyden 
Museum Vol. XXXI pag. 1—100, to which publication I 
refer for systematic information. 
Myrmeleon frontalis Burmeister. 
I collected this species at Batavia and Semarang, and all 
along the littoral part of the island it is of very common 
occurrence. 
Its metamorphosis does not seem to be bound to a fixed 
season, as the imagines as well as their larvae are to be met 
with all the year round. 
The imagines have nocturnal habits, and can often be 
Tijdschr. v. Entom. LV. 7 
