Aculeate Hymenoptera. 251 



black. The basal segment of the abdomen concave in 

 front, elevated on each side ; the elevations acutely mar- 

 gined laterally, yellow above, and at the sides, outwardly ; 

 the five following segments with a yellow band on their 

 apical margins, slightly interrupted in the middle ; the 

 apical segment black. Beneath, yellow ; a blunt yellow 

 tooth, or spine, projecting from the middle of the second 

 segment, and slightly curved towards the apex of the 

 abdomen ; the basal segment black. 



The female of this species was described from a speci- 

 men received from the Swan River ; it is in the National 

 Collection. Both sexes were sent by Mr. Du Boulay in 

 a small collection, presented to me by that gentleman ; 

 they are from Champion Bay. 



2. Paragia morosa. 



Female. Length 8 lines. Reddish-yellow, not shin- 

 ing ; the ocelli and teeth of the mandibles black. The 

 mesothorax with a central lanceolate patch, and the 

 suture at the base of the scutellum, black; the pectus 

 black ; the anterior wings ferrvxginous, becoming sub- 

 hyaline at their apical margins; the marginal cell occu- 

 pied by a black macula ; the metathorax produced 

 laterally above, into an acute angle. Abdomen ; the 

 apical margins of the second and third segments very 

 narrowly bordered with black, the basal margin of the 

 third slightly so, but becoming laterally more broadly 

 so ; the third segment is also black at the base laterally ; 

 the third and fourth segments are black beneath, the 

 third having the apical margin yellow, most broadly so 

 in the middle and at the sides. 



Hab. Champion Bay. 



3. Paragia concinna. 



Female. Length 5 lines. Black and orange. The 

 head black, with the base of the mandibles, labrum, 

 clypeus, a bell-shaped spot between the antennae, the 

 inner margins of the eyes, and a broad streak behind 

 them, orange-red ; the scape of the antennae ferruginous. 

 The thorax black, with the prothorax above, the tegul^ 

 and a narrow epaulet over them, an elongate spot on 



