OF INSULINDE. 43 
difference I found in a specimen from Rockhampton, col- 
lected by Mr. Meek, in my collection, comparing it with 
specimens from I[nsulinde. 
The median black spots of the vertex are connected, so 
that they form two longitudinal streaks somewhat narrowed 
in the middle. It agrees however in all other points with 
Walker’s description, so that it may be that the mentioned 
character is constant for the typical form. 
Myrmeleon acer hostilis Walker. 
This form is described from West Australia and probably 
different from the typical form. At present I have however 
no specimens for comparison at my disposal. 
Myrmeleon acer inopinus Walker. 
This is the form described from van Diemensland. Pro- 
bably it is different from the typical form. 
Myrmeleon acer novae-guineae, nov. subsp. 
This form is nearest related to acer acer; it is of the 
same size and has the median markings of the vertex 
separated and the lateral anterior and posterior spots much 
smaller but considerably larger than in javanese specimens. 
Body 26 mm., forew. 281 mm., hindw. 27 mm., ant. 51 mm. 
Abd. 19 mm. gr. br. 7 mm, gr. br. 6 mm. 
Habitat: New Guinea. 
I examined 3 specimens, all females, one from Dutch 
North New Guinea, Sentani lake, 17 June—4 July 1903, 
collected during Prof. Wichmann’s New Guinea Expedition, 
and two from German New Guinea, Astrolabe bay, Ste- 
phansort, collected by Kunzmann in 1894, formerly in the 
collection Neervoort van de Poll (coll. v. d. Weele). 
Myrmeleon acer giloloensis, nov. subsp. 
This form also remembers novae-guineae, but it is some- 
what smaller and has relatively broader wings. 
Notes from the Leyden Museum, Vol. XXXI. 
