12 Cameron, Hymenoptera Orientalia. 



the centre strongly deeply reticulated. The sternum is 

 thickly covered with short, fuscous hair, is narrowly 

 furrowed down the middle and stoutly tuberculated on 

 the apex at the sides ; the hair on the pleurae is longer 

 than on the breast. Legs thickly covered with long, 

 white hair ; the tibiae and tarsi are darker than the femora 

 and are more thickly covered with white hair ; the under 

 sides of the femora, of the anterior tibiae, and more or less 

 of the trochanters on the under side are white ; the claws 

 are bifid ; the lower tooth of the front calcaria stands out 

 obliquely and is shorter and somewhat stouter than the 

 other. The first recurrent nervure is received shortly 

 before the middle of the cellule ; the second quite close 

 to the second transverse cubital nervure ; the third cubital 

 cellule is a little longer than the second. The abdomen is 

 much more suffused with cobalt-blue than the thorax, 

 particularly above. 



Comes near to T. clypeata Cam. and T. metallica Cam. 

 but is quite distinct from either. 



Tenthredo spinosa, sp. nov. 



Nigra, abdomim testaceo ; antennis albis, bast nigris ; 

 pedibus anterioribus flavo-Ustaceis ; femoribus tibiisque 

 posticis rufo-testaceis ; tarsis posticis albis ; alis fulvo- 

 hyalinis, stiginate testaceo. $ . 



Long. 14 mm. 



Antennae white, the apical joints tinged with testa- 

 ceous ; the basal three joints black ; the first testaceous 

 below, the third white at the apex beneath. Front and 

 vertex broadly and deeply depressed at the 'sides ; 

 shining, impunctate ; the front ocellus is surrounded by a 

 semicircular furrow behind ; in front of it, on either side, 

 is a short, deep depression ; above the antennae is a long, 

 wide and deep one ; the vertex behind the ocelli is 



