Rev. F. D. Morice's No(es on Australian Sawflies. 281 



entirely black. The other is much smaller, only about 

 12 mm. long, and its scutellum is entirely black. (The 

 antennae in this specimen are broken, but what remains 

 of them is black.) In all other characters the two speci- 

 mens agree exactly, they were taken in the same place, 

 and I have no doubt that they belong to one species. 

 The smaller form is probably an aberration merely. If 

 a name be needed for it, it may be called semipurpurata, 

 var. melanaspis. 



S. W. Australia (Yallingup). Types in B.M. 



40. (37) Antennae entirely yellow. Middle lobe of mesonotum 



margined with yellow, side-lobes and basal segments of 

 abdomen more or less rufescent. Length about 12 mm. 



Mage, W. F. Kirby ( ?) * 



■ — Much larger than lalage, and with the antennae not entirely 



yellow 41. 



41. Antennae black except the basal joint. Middle lobe of the 



mesonotum in the unique Tj'pe apparently entirely black 

 (but, being pinned through this part, it cannot be examined 

 quite satisfactorily). Not unlike a very large semipurpurata ; 

 the colour of the abdomen above is a fine rich purple, as in 

 that species, but the venter seems to be marked with black 

 only at its base, the scutellum has no black central vitta 

 (though the commencement of one seems to be indicated by 

 a little black triangle at its extreme base), and the head 

 above is almost entirely luteous between the ocellar area 

 and the occiput, with only a narrow black longitudinal vitta 

 bisecting the vertex, while in semipurpurata there are also 

 a pair of subtri angular black maculae running from the 

 occiput to the eyes and covering a part of their orbits. This, 

 except aurulenta, is the largest Xylopercja which I have 

 examined, fully 18 mm. long . . dentata, W. F. Kirby. 



S. Australia (Adelaide). Type in B.M. 



— Antennae fulvous except the two basal joints and extreme apex 

 of each which are black. Middle lobe of the mesonotum 

 with a yellow mark in its posterior angle. Smaller than 

 dentata (about 1(5 mm. long) and with the metallic colour of 



* The type of lalage is a S from Melbourne. The $ which I 

 venture to associate with it was received in B.M. after Kirby's 

 death, and is from a very different locality, viz. Cairns in N. Queens- 

 land. Still it appears to me conspecific with Kirby's Type. 



