in 17 Osmia-species of the adunca- 6rro?^. 169 



myself only in the Alps. It seems to be a decidedly near 

 relation of mmentaria, though easily distinguishable from 

 it. (It also has $ ventral apex, not spinose !) 



Fig. 8. Differs from Fig. 6 (c&mentaria) chiefly in the 

 outline of the main lobes, which are more completely oval, 

 their inner margins much more convex, which diminishes 

 the triangular gap between them, and seems to thrust 

 the process further out towards the apex of the segment. 



The process (except in its situation, as just stated) is 

 almost identical with that of ciementaria. 



I have only one specimen of this insect (from Rome) 

 and am rather unwilling to make a new species of it, since 

 I can only find one substantial external character to dis- 

 tinguish it from cxmentaria. That however is a very 

 strong one, unless indeed it be an individual malformation, 

 viz. the last joint of the antennae is strongly excavated, 

 making its tip into a bent narrow spine or hook — much 

 as in pici, only the joint is shorter and the hook more 

 abrupt. The other joints are simple, and resemble those 

 of Ccwnentaria (see Fig. 26). 



Supposing it to be not a monstrosity, but a species of 

 which other examples may occur, I propose for it the 

 name romana. 



Fig. 9. The apices of the main lobes are acute, and show 

 underneath the transparent upper layer of their thickened 

 part, distinct sharp lateral teeth or spines (though the 

 actual margin, formed by the layer mentioned above, is 

 not' spinose but only angulated). The margins run a 

 little obliquely, hardly diagonally, less as in the species 

 lately described than as in those which are to follow. 



The process also is more of the type which will hereafter 

 present itself. It has a wide transverse petiole, more solid 

 and somewhat clouded down the middle, from which are 

 thrown off, not in an apical or diagonal direction but 

 transversely (horizontally in the figure) two shortly pilose 

 lobes with a very shallow incision or emargination between 

 their apices. The lobes in this case are almost round, 

 as wide as long, not elongated as in most of the species. 



My specimens $£ and £$ are all from Palestine or Syria. 

 I can find no description of the species, which from the 

 rounded fan-like lobes attached to the 6th segment (as 

 above stated) I propose to call flabellifera. 



It has a good deal the aspect of lepelletieri, to which 

 however it cannot, I think, be really a very near relation. 



