Species of Austrdliav Hymenoptera. 57 



Fam. ANDRENID^, Leach. 



Genus Lamprocolletes, Smith. 



1. Lamjjrocolletes venustus. 



Female. — Black, the abdomen with a silky gloss. The face 

 densely clothed with long, pale golden-coloured pubescence, that 

 on the cheeks is white ; the scape of the antennae ferruginous ; the 

 labrum and mandibles rufo-testaceous, the latter rufo-piceous at 

 their apex. Thorax thinly clothed above with pale ochraceous 

 pubescence, on the sides and beneath it is nearly white ; the tips 

 of the femora, the tibiae and tarsi ferruginous. Abdomen : the 

 margins of the segments with narrow fasciae of a golden lustre, 

 and thinly sprinkled with pale hairs. • 



Length 4^ lines. 



South Australia — Lower Plenty. 



In the Collection of the British Museum. 



2. Lamprocolletes cladocerus. 



Male. — Black, shining, and finely punctured, the pubescence 

 griseous and most dense on the face and thorax ; that on the 

 latter is beautifully plumose, resembling downy feathers ; on the 

 face it is nearly white ; the antennae bipectinate, that is, with a 

 double row of teeth, two on each joint ; each tooth has two or 

 more teeth or bi'anches within, all the teeth fringed with erect 

 hairs. The wings hyaline and iridescent, the nervures dark 

 brown ; the legs obscurely testaceous, the claw-joint of the tarsi 

 pale, the claws bifid, the calcaria white. Abdomen shining, and 

 having an obscure aeneous tinge ; the margins of the segments 

 depressed and obscurely rufo-piceous. 



Length 4^ lines. 



Hab. Australia — Sydney. 



In the Collection of the British Museum. 



This species is at present unique in the National Collection ; it is 

 certainly the most remarkable bee that I have seen, and the only 

 instance, to my knowledge, of a bee having pectinated antennae ; 

 such an occurrence, indeed, in the Aculeate Hymenoptera is only 

 known in two or three instances, as in P sammotherma Jlahellata 

 amongst the Mutillid^e, and again in Ctenocerus Klugii in the 

 Pompilklce ; there is also a modification of it in one or two other 

 species of Pompilidcs. 



