1908." 



AUSTRALIAN FOSSORIAL WASPS. 



469 



Hah. Mackay, Queensland [Turner) ; February. 



\^ery near S. diaholicus Sm., the Oriental form of ritflpennis 

 Fab., but differs in the postscutellum, which is not longitudinally 

 divided or raised into a small tubercle on each side near the 

 middle ; the petiole also is rather shorter, and the abdomen is 

 shining instead of opaque. 



Cercekis inexpectata, sp. n. (Plate XXVI. fig. 5.) 

 2 . Mandibles blunt at the apex, with a large triangular tooth 

 on the inner margin nearer to the base than to the ^pex. Clypeus 

 sparsely punctured, broadly truncate at the apex, the central lobe 

 slightly convex, bluntly produced on the apical margin at the 

 junction of the lateral lobes, nearly twice as broad at the apex as 

 at the base. The antennas are inserted above the clypeus, at a 

 distance from its base equal to three-quarter's of the greatest 

 length of the clypeus ; the second joint of the ilagellum is at 

 least twice as long as the first and half as long again as the third ; 

 at the base the antennfe are separated from the eyes by a distance 

 equal to the length of the scape, and from each other by about 

 tAvo-thirds of that distance. The eyes are slightly convei-gent 



Text-fig. 107. 



1. C. inexpectata. 



Cercei'is : pygidial area of $ • 



C. labeculata. 3. C. prcedura. 4. C. multiguttata. 



towards the vertex ; the postei'ior ocelli are about one-third 

 fui'ther from the eyes than from each other, and as far from the 

 posterior margin of the head as from the eyes. Head very broad, 

 at least one-thii-d broader than the mesonotum, the vertex coarsely 

 punctured-rugose, the front sparsely and shallowly punctured, 

 with an elevated carina between the antennas. Pronotum very 

 short, strongly rounded at the angles ; mesonotum rather sparsely 

 punctured, with a very shallow sulcus from the anterior margin 

 not reaching the centre ; mesopleurae very coarsely punctured ; 

 scutellum short, very broadly truncate at the apex. Median 

 segment strongly but not very closely punctured at the sides, with 

 a sulcus from the base to the apex ; the triangular space at the 

 base smooth. Abdomen coarsely punctured, most closely on the 

 third and fourth segments ; the first segment rectangular, a little 

 broader than long, neaidy half as broad as the apex of the second 

 segment ; the dorsal pygidial area rugose, truncate at the apex, 

 where it is half as broad as at the base. 



