38 MECOPTERA AND PLANIPENNIA 
from Hast Java, collected by Mulié, and two from Ambarawa, 
collected by Ludeking. I cannot find constant differences 
between the specimens from eastern and western Java. 
Specimens from Alor and Lomblen, in my collection, 
collected by A. E. Everett in 1897, are different from 
Javanese specimens by somewhat broader tips of the wings. 
Specimens from Timor are darker coloured and they are 
comparatively larger. I examined three specimens from that 
island, collected by Wienecke in March and December. 
Specimens from the island of Wetter, collected by Karl 
Schadler, are not distinct from javanese specimens. 
Metamorphosis and biology. 
Edward Jacobson kindly sent to me the different preserved 
stages of the javanese form, and also living larvae from 
Batavia were communicated to me by our zealous collector 
P. Buitendijk. 
I give here Mr. Jacobson’s observations and my owns 
together. f 
The egg (fig. 15) is large in proportion to the imago; it 
Fig. 15. has a length of 1'/, mm. and a breadth 
of °/, mm. It is oval and has a yellowish 
colour. There is nothing known about 
the depositing of Myrmeleonid-eggs and 
these are only known of some three 
or four species. Mr. Jacobson obtained 
four eggs from a pinned female, 
The newly hatched larva (fig. 16) is 
about 2 mm. long, its colour is dark 
brown like the sand in which its lives. 
_ The coxae are very long and the tarsi 
abe DR are one-jointed. The head is elongate, 
Egg. the antennae about half as long as the 
mandibles. The thorax and abdomen are distinctly separated 
and in the first the three segments are still distinctly 
developed. The pygidium is very short and nearly oval. 
Notes from the Leyden Museum, Vol. XXXI. 
