40 
Psyche 
[March 
nection that the reduced psammarotrum in Oliarces and 
many of its other features (e.g\, the short basal piece of 
MA in the hind wing) appear specialized as compared with 
the corresponding structures of the Australian ithonids. 
The inclusion of Oliarces in the Ithonidae certainly makes 
an unusual distributional pattern for the family, but the 
paucity of specimens of most species implies that the group 
might well have a much wider distribution than is now 
known. Of course, since the larvae of the Neuroptera pro- 
vide the only completely satisfactory basis for their family 
classification, the systematic position of Oliarces will not 
be truly solved until its immature stages have been dis- 
covered. 
References Cited 
Adams, P. A. 
1950. Notes on Oliarces clara Banks. Pan-Pacific Ent., 26:137-138. 
Banks, N. 
1908. A new genus and species of Neuroptera. Ent. News, 19:203-204. 
Brues, C. T. and A. L. Melander 
1932. Classification of insects. Bull. Mus. Comp. Zool. Harvard Coll., 
73:1-672. 
Carpenter, F. M. 
1940. Revision of the Neartie Hemerobiidae, Berothidae, Sisyridae, 
Polystoechotidae and Dilaridae. Proc. Amer. Acad. Arts Sci., 
74:193-280. 
Gannett, H. 
1906. Dictionary of altitudes in the United States. U.S. Geol. Surv., 
Bull. 274 (Ser. F, geogr. 47) : 1-1072. 
Killingjon, F. J. 
1936-37. Monograph of British Neuroptera. 2 vols. Ray Soc. 
Lameef.e, A. 
1936. Precis de Zoologie, 5:25-47. 
M’Lachan, R. 
1886. A new genus of Hemerobiidae, and a new genus of Perlidae. 
Trans. Ent. Soc. Lond., (3) 5 (4) : 353-354. 
Tillyard, R. J. 
1916. Studies in Australian Neuroptera. No. 4. The Families Ithonidae, 
Hemerobiidae, Sisyridae, Berothidae. Proc. Linn. Soc. N. S. 
Wales, 41:270-332. 
1911' . Studies in Australian Neuroptera. No. 8. Revision of the Family 
Ithonidae. Proc. Linn. Soc. N. S. Wales, 44:414-437. 
Explanation of Plate 4 
Fig. 1. Terminal abdominal segments of male of Ithone fusca Newman. 
Drawn from specimen in M. C. Z. (Woy Woy, N. S. W., Nov. 5, 1918, 
R. J. T.). 1A, dorsal view; IB, lateral view; 1C, ventral view; ap. anal 
plate; 8T, 9T, 10T, abdominal tergites; 8S, 9S, abdominal sternites. Fig. 
2. Terminal abdominal segments of male of Oliarces clara Banks. Drawn 
from holotype (M. C. Z.) . a, anus. Other lettering as in figure 1. 
