June, I9IO.] COCKERELL : AUSTRALIAN BeES IN BeRLIN MuSEUM. 105 



1750. The name callosa, given by some unknown student, is on the 

 label. A remarkable species, with only one submarginal cell. In the 

 table it runs to P. hituberciilata, from which it differs at once by the 

 structure of the abdomen, etc. 



Prosopis trilobata, new species. 



Male. — Length about 6 mm. ; rather slender ; black, with bright yellow- 

 markings ; face yellow right across, the yellow cut off squarely above a little 

 below level of antennae, leaving supraclypeal mark about twice as broad as 

 long, and lateral marks broad-cuneiform ; below, the lateral marks fail for a 

 short distance, and a little dark process runs between them and the clypeus, 

 while the clypeal yellow also ends, being broadly trilobed ; labrum and man- 

 dibles dark ; mouth-parts normal for Prosopis ; antennze rather long, black 

 above, dark reddish beneath ; scape with a reddish stripe ; front dull, densely 

 rugoso-punctate ; projecting upper edge of prothorax, and tubercles, broadly 

 yellow ; no other yellow on thorax ; mesothorax very minutely punctured ; 

 tegulse piceous ; wings dusky, nervures and stigma dark brown, first r. n. 

 entering basal corner of second s. m. ; legs black, except the anterior ones in 

 part, as follows : femora rather swollen, with about the apical half behind and 

 less above bright yellow ; tibiae orange in front except apically, and at base 

 behind, otherwise dark red-brown ; tarsi obscure reddish.; abdomen black, 

 ordinary, very delicately punctured. 



Runs in the table to P. hitnhoxulata, but very distinct by the 

 ordinary abdomen, etc. The legs, with bright yellow on the first pair 

 only, are very peculiar. 



Habitat.— MzWte, Victoria (Rollc). Berlin Museum. 



Prosopis rollei, new species. 



Male. — Length slightly over 6 mm. ; rather robust ; black, red and orange- 

 yellow ; face broad, entirely yellow up to antennae, and with three equal 

 processes (one median and the others along orbital margins) a short distance 

 above ; mandibles and labrum yellow ; antennae bright ferruginous, a little dusky 

 above ; thorax robust, mesothorax strongly punctured, with indications of five 

 grooves, counting the short parapsidal ones ; upper edge of prothorax rather 

 narrowly, tubercles, tegulae, most of scutellum and a spot on postscutellum, 

 all ferruginous ; base of metathorax with coarse plicae ; head and thorax quite 

 hairy, especially the vertex, sides of metathorax, and pleura ; wings perfectly 

 clear ; nervures ferruginous ; stigma amber-color with a ferruginous margin ; 

 first r. n. entering basal corner of second s. m. ; legs bright ferruginous suf- 

 fused with yellow ; abdomen short, strongly punctured, black, with the "first 

 two segments red except the first broadly and the second more narrowly in 

 the middle, the structure ordinary. A second specimen has the face red 

 except the lower edge of the clypeus, but from the tint this is evidently due 

 to cyanide. 



