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THE ENTOMOLOGIST. 



4. Black 5. 



Wholly or in part green or blue ..... 6. 



5. Hind margins of second and following abdominal seg- 



ments broadly yellowish white ; second submarginal 

 cell extremely small ( ? ) . . . . semijiallida, Ckll. 



Hind margins of second and following abdominal seg- 

 ments not white ; second submarginal cell larger ( <? ) 



hypodonta, Ckll. 



6. Mesothorax black (<? ? ) . australica, Sm., var. regina, Ckll. 

 Mesothorax green or blue ...... 7. 



7. Mesothorax yellowish green (<?) . . . flavoviiidis, Ckll. 

 Mesothorax blue or greenish blue (cf ? ) 



flavoviridis var. doddii, Ckll. 



Nomia (Hoplonomia) pulchribalteata, var. austrovagans, n. subsp. 



<?. Length about 8h mm. (the position of the specimen makes it 

 difficult to measure) ; black, head and thorax with sordid yellowish- 

 white pubescence, the scanty short hair on thorax above dark ; tongue 

 long and slender ; eyes red ; face very broad above, strongly narrowed 

 below ; clypeus with a keel ; mandibles and antenna? black, the latter 

 not especially long, not crenulate ; vertex dullish, granulo-punctate ; 

 mesothorax dull, very densely punctured ; scutellum with a pair of 

 widely separated short (subpyramidal) spines ; post-scutellum covered 

 with white tomentum, and provided with two long black spines, much 

 closer together than those of the scutellum ; basal area of meta- 

 thorax extremely short, with little transverse (antero-posterior) ridges ; 

 tegula? fuscous in the middle, then fulvous, and the margin white- 

 hyaline ; wings rather yellowish, the apex a little darker ; stigma and 

 nervures piceous, second submarginal cell higher than broad, but not 

 far from square ; legs black, hind tarsi and outer and apical part of 

 hind tibia? ferruginous, the red brightest on the tibia? ; hind femora 

 swollen, strongly humped above, but not toothed beneath ; hind tibia? 

 gradually broadened to the apex, with a prominent convex keel on the 

 outer side, but the inner apex is blunt, not toothed ; abdomen black, 

 strongly and coarsely punctured, the hind margins of the first five seg- 

 ments with smooth pearly light green bands, shining purple in some 

 lights, and appearing white in others, the first band narrowest ; sixth 

 segment with a very broad and deep semicircular median emargina- 

 tion ; apical part of venter ferruginous. The third and following 

 abdominal segments have black hairs overlapping the bands. 



Hab. Adelaide (F. Smith collection, 79. 22). 



This is the first Australian Hoplonomia. It is very close to 

 N. westwoodii, Gribodo, from Bengal, and N. pulchribalteata, 

 Cameron, from New Britain ; it is, in fact, so close to the latter 

 that for the present I treat it as a subspecies. It will be known 

 by the purple tints of the abdominal bands, resembling in this 

 respect N.formosa, Sm., from Celebes. 



Nomia lepidota, n. sp. 



5 . Length, 7 mm. or rather more ; black, the hind margins of 

 the abdominal segments narrowly reddish ; head broad, minutely 



