48 MECOPTERA AND PLANIPENNIA 
rows of points in it. In both wings the marginal veins 
have this coloration, though rather more irregular, In the J 
there are still cloudings of the membrane at the hind- 
margin of the posterior wings and at the outer margin of 
the anterior ones. 
The disc of the forewing has in both sexes many grey 
cloudings and blackish veins. 
Body 16 mm., forew. 25 mm., hindw. 24 mm., ant. 12 mm. 
Abd. 9 mm., gr. br. 12 mm., gr. br. 8} mm. 
Habitat: New Guinea and Salawatti. 
The type is from Ausus and collected by A. B. Meyer; 
it is in the Dresden Museum. I examined a female from 
Salawatti (Dr. Bernstein) and a male from Dutch South 
New Guinea, van Weel’s kamp, June 3rd 1907, collected 
during the last expedition of Mr. H. Lorentz in the direction 
of the ,Sneeuwgebergte”’. 
Osmylidae. 
This family is distinct from the Nymphidae by the longer 
antennae and by the areolum of the tarsi, which may 
be absent or, when developed, is small and simple, only 
slightly incised at the tip. From the Hemerobidae it is 
distinguished by the well developed radialsector, from which 
the branches of the discal wingpart emerge. 
The larvae live so far as is known in water. 
The genera represented in Insulinde are: 
Genus Osmylus Latreille (1805). 
Latreille, Hist. Nat. Crust. Ins. XIII, p. 39 (1805). 
Wings rather long and broad, with rounded or acute 
tips which are not incised at the exterior border of the 
forewings. Antennae reaching about the middle of the 
wings. Some species with a tubercle at the middle of the 
hindborder of the forewing in the male. The legs are short 
and provided with short, spare hairs. The app. sup. of 
the © are short and conical. 
The genus is represented in Insulinde by 3 species, viz. 
Notes from the Leyden Museum, Vol. XX XI. 
