collected in Australia and Tasmania, 235 
Hah. Tasmania — Hobart, Launceston, and Franklin. 
Apparently not uncommon in Tasmania. This species 
belongs to the section Clinocara, Thorns. ; it is closely- 
allied to the European 0. sepicolaj Rosenh. (= minory 
Walk.), but is broader and less parallel, the elytra are 
narrowed from about the basal third, the antennas and 
legs are shorter, and the basal foveae of the thorax are 
shallow. Orchesia elongata, Macl., from Queensland, 
appears to be a very much larger and more elongate 
insect than 0. austrina; the description is wholly 
inadequate. Under bark on rails, and also under 
Eucalyptus bark (Walker). 
Mystes, n. gen. 
Head scarcely deflexed, very short, sunk into the prothorax up 
to the eyes, with rather deep frontal suture ; eyes transverse, en- 
tire, very widely separated, coarsely granulated ; apical joint of 
the maxillary palpi small, very little wider than the third, feebly 
securiform ; antennae short, scarcely extending beyond the 
humeri, joint 3 elongate-triangular, twice the length of 2, 4-10 
subtriangular, 4 wider than 3, 5-10 gradually decreasing in width, 
9 and 10 about as broad as long, 11 ovate. Prothorax much wider 
than the head, transversely quadrate as viewed from above, with 
the greater part of the disc flattened, the lateral portions vertical, 
and the angles obtuse. Scutellum about as long as broad, emar- 
ginate on either side. Elytra almost flat, abruptly declivous at 
the sides, elongate, not wider than the prothorax, parallel, rounded 
at the apex, confusedly punctured. Anterior coxae feebly exserted, 
contiguous ; the cavities closed externally, open behind ; the 
antecoxal part of the prosternum twice the length of the coxae. 
Mesosternum largely developed before the middle coxae, the latter 
subcontiguous. Metasternum elongate, broadly depressed along 
the middle. Legs moderately long ; intermediate and hind tibiae 
transversely notched along their outer edge ; tibial spurs moderately 
long, subequal, the upper spur of the hind pair slightly .longer 
than the lower one ; penultimate joint of the tarsi simple, the 
basal joint of the hind pair longer than the following joints 
united. Body elongate, parallel, very depressed. 
The single species from which the above characters 
are taken diflfers from all the other Melandryidae known 
to me in its very depressed form. The scarcely deflexed 
head, transversely subquadrate thorax, and parallel, 
elongate elytra give it a peculiar facies. 
