33 



large ones; post-scutellum coarsely rugose-punctate, and seen from in 

 front with a distinct lateral angulation on each side and a median 

 one still more prominent; propodeum shortly pilose, rounded at the 

 sides, and with a deep median impressed line. Abdomen with sericeous 

 pile, the surface having an excessively minute and dense microscopic 

 pun'cturation, the pedicel only with remote, larger punctures, but even 

 these are fine and shallow. Length to the apex of the second abdominal 

 segment 9-10 mm. 



Hab. Australia, middle Queensland, not rare. 



Obs. In North Queensland a variety is found, in which all the 

 yellow markings are rufous, those of the occiput connected on the 

 vertex behind the ocelli, the abdominal pedicel entirely rufous. I see 

 no structural difference to distinguish this form. 



Montezumia australensis sp. nov. 



Black, with orange markings, those on the head partly bright 

 yellow. 



Male; a spot on the mandibles, the clypeus, a spot above it, a line 

 in the sinus of the eyes, yellow; front ot scape, a bhort line or spot on 

 the posterior orbits, sometimes one on the upper margin of the eyes, 

 more orange colored; flagellum more or less ferruginous beneath 

 towards apex, the apical hook sometimes more obscuie ihan the pre- 

 ceding joints. A band on the pronotum, the tegulae, sometimes two 

 spots on the scutellum and two on the post-scutellum, or the latter 

 almost entirely, and a mark on each side of the propodeum posteriorly, 

 orange: legs mostly ferruginous, with the coxae and the basal part 

 of the femora (the posterior ones for half their length or more) black. 

 All the abdominal segments with apical orange bands. 



Clypeus distinctly, but not deeply emarginate, feebly punctate; 

 the front of the head densely rugosely punctured. Whole thorax, 

 including the propodeum, densely rugosely punctured, the surface, 

 which is more or less shining between the punctures, bearing a very 

 minute microscopic, but quite distinct, puncturation. Propodeum with 

 a deep round fossa or chamber above the abdominal articulation; on 

 each side of the chamber is a curved carina more or less pale colored, 

 and in lateral view forming a projecting angle of the propodeum; a 

 shorter curved carina external to this forms with it a less deep cavity 

 on either side of the median chamber, and these subsidiary cavities, 

 like the latter, are often filled with acari. Wings hyaline, more or 

 less infuscate or yellowish tinged, and more deeply yellow or brown 

 along the costa, the stigma brown, the first recurrent uervure received 

 before, the second after, the middle of i,he second cubital cell, the 

 lower or cubital side of this cell being about three and iK half or four 

 times the length of its upper or radial side. Basal abdominal segment 

 pedicellate, the pedicel elongate, but shorter than the bell shaped por- 

 tion of the segment behind it, which is closely and rather strongly 

 punctured and has a median impression; second segment much more 

 finely, but distinctly, and for the most part closely punctured, the sur- 

 face coriaceous or microscopically shagreeued between the punctures; 

 beneath, its basal transverse sulcature is smooth, behind which the 

 segm.ent is considerably, but not vertically, raised, as viewed with the 

 ventral side upwards. Length of male to apex of second abdominal 

 segment about 10 mm. 



