New and little-known Aiistralian Osmylidae. 
By 
P. EslHjn-Petersen, Silkeborg. 
The following desc.iptions and notes are especially based on 
a smal lot of very interesting material, forwarded to me by my 
friend and colleague Mr. R. J. Ti Ilyard, Sydney. The wish, to 
bring the results of my work in conformity with the excellent mono- 
graph of the Osmylidae, published by Professor L. Kriiger in 
Stett. entom. Zeitschr. 1912 et seq., led me to send him photos 
of the wings and to consult him with regard to the position of the 
species in his system, and he has kindly given me a number of 
valuable informations. I wish here to express my best thanks to 
Mr. R. J. Tillyard and to Professor L. K ru ger. 
Stenosmylus ausfraliensis n. sp. 
Head reddish. Ocelli blackish. Labial and maxillary palpi brown, 
paler at the joinings. Below the antennal insertion and near the 
inner margin of the eyes a groove, which is rather dark into its 
bottom. Antennae long, as long as three fourth of the length of 
the forewing; the basal joint stout and reddish yellow, longer than 
broad; the second joint short and much smaller than the first, al¬ 
most globular, and reddish yellow; third joint and the following ones 
longer than broad, cylindrical, blackish and blackish haired. Prothorax 
one and a third times longer than broad, narrowed towards the apex 
and with rounded front angles, reddish yellow and with reddish 
yellow hairs; a longitudinal, median streak, which is rather broadened 
towards its base, blackish; between the median streak and the lateral 
margins at each side a longitudinal, narrow, blackish streak, which 
does not touch the front or the hind margin. Méso- and metathorax 
blackish brown with paler hind margins. ^Underside of prothorax 
Viciensk. IMedd. fra Dansk naturh. Foren. Bd. 68. 
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