588 STUDIES I\ AUSTRALIAX ENTOMOLOGY, NO. XII., 



I have seen tlie type specimen of M. paramaitensis, Casteln., 

 in the Howitt Collection, where were also named specimens of 

 M. niacoyei, Casteln. Comparison of these with specimens in my 

 collection from Gippsland and Spring wood (Sydney District) 

 convinces me of their identit}^ with one another. 



Genus M o r i o m o r p h a. 



MORIOMORPHA ADELAIDE, Casteln. 



Trans. Roy. Soc. Vict. viii. 1868, p. 124. 



Two specimens (r^) of a species of Moriomorpha which I regard 

 as J/, adeiaicke, Casteln., are before me [one from !^Julwala on the 

 Murray River, found in a hollow limb of a recenth" fallen tree* 

 (Eticali/phis meUiodora); the other from near Urana, N.S.W., 

 taken under loose bark on the trunk of a gum tree {Eucalyptus 

 rostrata)]. 



The following brief diagnosis is founded on the specimen from 

 Urana (the sjDecimen from Mulwala has the prothorax more 

 roundly ampliate at widest part and therefore of more cordiform 

 shape). (J. Head 1*75 mm. across eyes; orbits obliquely narrowed 

 behind eyes (much less developed than in Moriodema); antenna? 

 w^itli 4:th joint about equal in length to 3rd (in Moriodema the 

 4th joint is shorter than 3rd). Prothorax cordate (Iw x 2*3mm.); 

 base and apex of equal width (l'75mm.). Eh'tra strongly striate 

 (much more strongly than in Moriodema); humeral angles lightly 

 dentate, not marked. Ventral segments impressed on each side. 

 Anterior femora thick, with a small subtuberculiform prominence 



* Hyperion schroetteri, Schreib. ,is taken at Mulwala, though rarely, in 

 the hollows of trees which are filled with damp dirt, in which are found 

 numerous larvte of large Melolonthid beetles (Passalus, &c.), on which the 

 larv?e of Hyperion probably feed. It may be noted that in dry localities like 

 Mulwala such insects as H. scJiroetteri may be only able to maintain them- 

 selves in the hollows of decaying trees because that is the only position where 

 a sufficiency of food for their development can be found, the heat and dry- 

 ness of the summer preventing the accumulation of large numbers of Passalid 

 larvae under logs lying on the ground, as happens in the moister forests 

 nearer the seaboard. 



