42 MECOPTERA AND PLANIPENNIA 
Antennae black, the basal joint yellow at the dorsal side, 
black beneath; they are shorter than in frontalis and with © 
a broader club. 
Pronotum deep fuscous, the borders somewhat paler 
luteous. Meso- and metanotum darker, with narrow luteous 
hindborders. 
Breast luteous brown, often covered by a grey exudation. 
Legs luteous brown, tarsi black, except the basal joint, 
which is yellow at its base, tibiae black at the underside, 
at the tip and at the base. Femora yellow at the basal 
third, with a broad brown line at the outer side of the 
apical two thirds. Spurs black, straight, as long as the 
metatarsus. 
Body shorter than the wings, wholly fuscous, equal in 
length in both sexes, with very narrow yellow lines at 
the hindborders of the segments of the distal half. 
Gonopoda very short, yellow. 
Wings with a bluish green iridescence, hyaline, with 
white pterostigma, which shows more or less distinct traces 
of a dark patch at its basal side in the forewing. Longi- 
tudinal nervature yellow, distinctly spotted with brown. 
Pelotte very small, brown, somewhat longer pedunculate 
than in frontalis. Costalveins simple, exceptionally two 
or three before the pterostigma are bifurcate. 
Habitat: from China to van Diemensland. 
This species forms subspecies in the localities where it 
occurs. It lives along the seashore, not far from the 
floodline and no doubt it dues its large geographical distri- 
bution to this mode of live. 
I only will give here the description of the forms of 
Insulinde, the others will only be enumerated. 
Myrmeleon acer acer Walker. 
This typical form, from New Holland, is described 
sufficiently enough by Walker. He does not mention the 
pattern of the vertex and as I have not noted it when I 
examined his type in 1906, I can only give here the 
Notes from the Leyden Museum, Vol. XXXI. 
