i908.J AUSTRALIAN FOSSORIAL WASPS. 531 



nervure is sharply bent at the point of junction, the apical portion 

 appearing almost more like a part of the transverse cubital than 

 of the cubital nervure. 



Length 9 mm. 



Hah. Mackay, Queensland (^Turner) ; January. 



Orabro cinctus, sp. n. (Plate XXVI. iig. 14.) 



5 . Head very large, almost square, slightly rounded at the 

 posterior angles, extremely finely and closely punctured. Man- 

 dibles bi-oad at the apex and tridentate, the inner tooth very short, 

 the middle tooth the longest. Clypeus slightly porrected, almost 

 vertically truncate at the extreme apex, the surface of the trun- 

 cation semicircular and slightly concave. Cheeks depressed along 

 the outer orbits of the eyes, the margins of the face and the 

 depressions on the cheeks clothed with short silvery pubescence. 

 A longitudinal sulcus below the anterior ocellus and a longitudinal 

 carina above it, a shallow depression on each side of the carina 

 behind the posterior ocelli, the front clothed with short golden 

 pubescence, the inner orbits of the eyes slightly depressed. 

 Thorax narrower than the head ; the anterior and posterior 

 margins of the pi^onotum raised and with the angles slightly 

 px-oniinent, a deep transverse sulcus interrupted in the middle 

 separating the raised margins. Mesonotum and scutellum very 

 finely and closely punctured, the disc of the mesonotum with a 

 broad and shallow depression. Median segment short, truncate 

 posteriorly, with a deep, longitudinal, median sulcus from the base 

 to the apex ; the enclosed space at the base closely punctured 

 with a few very short stride at the base, broadly rounded at the 

 apex. Abdomen subpetiolate, coriaceous, pygidium narrow and 

 lanceolate. 



Black ; the mandibles at the base testaceous yellow ; the clypeus, 

 the scape of the antenna?, the two basal joints of the flagellum, 

 a,nd a spot on each side at the anterior angles of the mesonotum 

 yellow ; the pronotum, a large mark on the scutellum, the post- 

 sc'utellum, a spot on the mesopleurfe, a short longitudinal line on 

 the middle of the basal abdominal segment, a broad transverse 

 band at the base of the second segment, and the three apical 

 segments above orange ; the tegulee and the apical ventral seg- 

 ment of the abdomen ferruginous brown. Legs yellow, stained 

 with ferruginous brown. Wings hyaline, tinged with fuscous ; 

 iiervures dark fuscous. 



Length 12 mm. 



Hah. Mackay, Queensland [Turner) ; April. 



The posterior ocelli are two and a half times as far from the 

 posterior margin of the head as from each other ; further from 

 each other than from the eyes. The antennae are inserted close 

 to the eyes, the second joint of the flagellum nearly twice as long 

 as the first and as long as the third ; the distance between the 

 eyes at the base of the antennfe equal to half the length of the 

 scape. The mesopleura? are rugose, the depi-ession for the femora 



