32 
XYLOEYCTS OR TIMBER MOTHS. 
and strong web which the larva spins in front of its tunnel 
before changing to the chrysalis. Though many of the insects 
are quite common in the larval state, yet the moths are of 
great rarity and are seldom seen even by experienced ento- 
mologists. Securely as they appear to be hidden in these 
tunnels, yet they have enemies in various ichneumons with long 
ovipositors, which find them out and deposit their eggs in their 
bodies, thus fortunately preventing them from becoming too 
plentiful. The larva of a beetle belonging to the Cleridff, 
Natalis sp., also preys upon them, and finally changes to the 
perfect state in the gallery lately occupied by the caterpillar of 
the Xyloryct moth. 
Protective resemblance has evidently much to do with the 
explanation of the different colours and patterns displayed by 
many of the moths. For example the close similarity in 
colour between Uzucha humeralis and the bark of the spotted 
gum and between Cryptophaga nubila and that of the teatree 
IS very obvious, and becomes significant when we remember 
that the trees mentioned are the food plants of these moths. 
At the same time other Xyloryctidm, C. epadelpha, seem to 
be coloured m a manner specially suitable for rendering them 
conspicuous. ° 
LIST OF AUSTRALIAN XYLOEYCTID^. 
Compiled pbom Writings op E. Hetrick, BA PES-nTiT 
F.E.S. ; .ND Dr. T. P. ut’J. ’ 
An asterisk (♦) prefixed to a name denotes the ee 
Vicinity of Brisban: 
2. hypoxantha, iomer. 
i-iLosTiBES.— 3. • stigmatias, Meur d • 
Lucas. ' * cnchidias, Meyr. 5. tecta, 
Cryptophaga.— 6. aglaodes, Lower. 7 - 
Lower. 9. • nubila, Lucas, lo • ochrolenca, 
bescens, Lewin. 12. albicosta, 
14 . irrorata, Lewin. 15 . Paltenaea:, Lewin. 
Walk. 17. russata, Bull ig Ju 16. balteata, 
, 20. ■ i '“““‘"f*; s.„. 19. ,9b,. 
22. lunda, Meyr. 23 • epadelpha, Meur . 
l^yr. 25. hierLtiB,X. 26 24. leucadelpha, 
^^eyr. 28. dolerastia, a/IV ocf ° 27. • sarcinota, 
s.moer. 33. monoleuea. Lower.-] 32. platypedimela, 
