124 F. ErasTYius Wilson: 



short, rounded at shoulders, strongly dilated to apex; dorsal striae 

 traceable to about apical third, both sutural and dorsal striae arising 

 from minute foveae; with puncturation about same size but not 

 quite so distinct as on prothorax. Abdomen about twice as long as 

 elytra, widest at apex O'f second segment, on either side of which 

 there is a rather deep fovea. Metasternum impressed in middle; with 

 scattered punctures. Prosternum with a small conical tubercle on 

 either side, these surmounted with a long sharp seta. Anterior 

 trochanters about middle, and anterior femora near base, armed with 

 a long, thin spine, the femoral ones being slightly longer. All tibiae 

 rather strongly curved near apex. Tarsi with third joint slightly 

 longer than the second, and armed with two unequal, widely diverging 

 claws. Undersurface of abdomen slightly flattened along centre, with 

 a shallow transverse fovea on sub-apical segment, this segment 

 rather strongly produced in centre. 



Length, 1.75-2 mm. 



Habitat. — Victoria: Mt. Donna Buang, Belgrave, (P. E. Wilson). 



This description will be found almost identical v/ith that of 

 'brevipennis, Lea^, but the fact remains that it agrees in practically 

 every character with that species except that it has the additional 

 armature on the prosternum. This, however, is very distinct, and is 

 constant in all my examples. Its palpi are as in hrevipennis^ but the 

 two spines on the sub-basal joint . are about equal in length. The 

 spine at the apex of the ultimate joint is much longer than its 

 accompanying seta, and near the apex there are also a few very 

 much finer setae or hairs. 



Two specimens that are almost certainly females, are a little 

 larger and have the undersurface of the abdomen much more convex, 

 particularly on the basal segments. My examples from Mt. Donna 

 Buang were secured from tussocks of snow grass growing on the 

 summit, and a single example from Belgrave was sieved from moss. 



Type in autlior's collection. 



ScniSTODACTYLUS FOVEIVENTRIS, U.Sp. 



(^ Differs from arTtiipectus in having the antennal joints 1-10 

 almost concolourus, and 11 very little lighter than. 10; in its vestiture 

 being a little sparser, its head more punctured on disc near base, 

 in its less pronounced inter-ocular foveae, and in the very different 

 undersurface of its abdomen. The first segment is very convex and 

 declivous at apex, the third very narrow and constricted in the 

 middle. It overhangs the base of a large cavernous fovea which 

 extends to the apex of abdomen. The sub-apical segment only appears 

 as a triangle on either side of the fovea. Apex of abdomen sharply 

 produced. The transverse rows of punctures "on the ventral segments 

 are much stronger also! than in armipectus. Apical joint of maxillary 

 palpus furnished at apex with a spine not accompanied by a strong 

 seta. 



.3. Proc. Linn. Soc. N.S.W., Vol. xxxv., (4), p. 771, Pi. xxi., f. 10. 



