464 MR. R. E. TURNER ON [May 12, 



c? . Mandibles biclentate ; clypeus and front clothed with fine, 

 short, silvery pubescence ; the clypens as long as the breadth at the 

 middle, broadly emarginate on the apical margin. Second joint 

 of the flagellum only slightly longer than the first and third com- 

 bined. Eyes rather strongly convergent towards the clypens. 

 The whole of the mesonotum transversely striated ; mesopleur^ 

 and metapleurfe rugose. Petiole very long, equal in length to the 

 posterior tibia and "three basal joints of the tarsus combined. 



Black ; the tegulfe, the second joint of the petiole beneath, and 

 the first following segment of the abdomen at the base above and 

 beneath ferruginous "[ the abdomen beyond the petiole pruinose, 

 dark steel-blue. Wings hyaline, clouded on the outer margin ; 

 nerv'ures black. 



Length, $ 23 mm., d 22 mm. 



Hah. Mackay to Cape York, Queensland {Turner) ; November 

 to May. 



Yery near ^. instahilis Sm. in the female sex, but difiers in the 

 form of the clypeus and in the proportionate length of the joints, 

 of the flagellum. The petiole is also longer. Also near A. hasalis 

 Sm. from India. 



A common species throughout the coastal districts of Korth 

 Queensland. The male is very difi:erent from those of other Aus- 

 tralian species, and allied to Indian forms. 



Ammophila aurifera, sp. n. (Plate XXYI. fig. 3.) 



5 . Mandibles with a very long acute apical tooth, the inner 

 margin with three teeth, the one nearest the apex very short and 

 broadly truncate, the second broad and rounded, the basal one 

 very small and acute. Clypeus very slightly convex, depressed at 

 the apex and subtruncate, very sparsely punctured, the punctures 

 very large. Antennae inserted about two and a half times as far 

 from the eyes as from each other, about one-thii'd further from 

 the anterior ocellus than from the apex of the clyj^eus ; the second 

 joint of the flagellum about five times as long as the first and 

 twice as long as the third. Posterior ocelli about one-quarter 

 further from the eyes than from each other. Head opaque, 

 almost smooth, with a longitudinal sulcus from the anterior ocellus 

 to between the antennae ; the front round the base of the antennae 

 slightly concave. Pronotum coarsely transversely striated ; 

 mesonotum very obscurely transversely striated, the stria? almost 

 obsolete on the disc, a deep and broad longitudinal sulcus fi'om the 

 anterior margin not reaching the posterior margin, a raised curved 

 carina above the tegulje. Mesopleurae rugose ; mesosternum 

 transversely striated. Scutellum longitudinally striated ; median 

 segment transversely striated, the stria? arched in the middle and 

 rather obscure, as long as the mesonotum and pronotum combined. 

 Abdomen coriaceous, the petiole two-jointed and as long as the 

 posterior tibia and first tarsal joint combined ; the apical segment 

 with long black hairs on the sides. Tarsal ungues simple, not 

 bidentate, and without a pad. 



