OF INSULINDE. 3) 
beak, only somewhat produced. Antennae varying from 
short clubs to long setae. Legs much shorter and thicker, 
shorter than the body. Body shorter or longer than the 
wings, 
Larvae living on land, seldom in water, carnivorous, 
with long pierced mandibles with which they suck out 
their prey, consisting in other insects. Cocon always 
spherical, spun on leaves or in the ground, Pupa libera. 
PLANIPENNIA. 
PART I, 
MEcoprTERA. 
(With 1 plate and 8 text-figures). 
These curious insects are hitherto only known from Java 
and Sumatra, and all species belong to the genera Panorpa 
and Zeptopanorpa, which are characteristic by the long 
abdominal segments of the male, the last one being produced 
into a cheliferous segment. No doubt the asian and australian 
genus Bittacus and the australian genus Chorista will also be 
found in some parts. So far as is known the species I enu- 
merate here are collected in mountainous regions, Nothing 
is known about their biology and development. 
Key to the genera. 
_ Abdomen of the © as long as the wings or somewhat 
longer, cheliferous segment sessile or very shortly pedunculate. 
Panorpa Linné. - 
Abdomen of the <7 much longer, about twice, than the 
wings, cheliferous segment longly pedunculate. 
Leptopanorpa Me. Lachl. 
Genus Panorpa Linné (1758). 
The malayan species of this genus are, so far the males 
Notes from the Leyden Museum, Vol. X XXI. 
