170 Rev. F. D. Morice on the 6th J ventral segment 



Perhaps its most striking $ character is in the last dorsal 

 segment. This is very broad and somewhat bilobate 

 (see Fig. 31), quite unlike any other in this group, to 

 which however I am satisfied that it belongs. (For 

 other characters see the Diagnoses which follow.) 



Fig. 10. Not unlike the last, but the main lobes with 

 more transversely running margins, evidently spinose at 

 the apices, only the teeth are deflexed,so that the segment 

 must be viewed from in front to see them satisfactorily. 



The process more transverse, its lobes being rather 

 narrower and longer, their direction completely transverse. 



This, I believe, is jheringi, Ducke. Herr Alfken gave 

 me a pair from Triest, and I have specimens which seem 

 identical, which I took in Egypt. It is described in 

 Ducke's recently published supplement to Apidae Europeas 

 (Genus Osmia). 



Fig. 11. Apices of the main lobes very sharp and 

 evidently spinose, their sides before these teeth show a 

 very long and conspicuous pilosity (unlike anything yet 

 encountered, but usual in the species which are to follow). 



The process with a wide petiole ; the lobes long, narrow 

 and pointed, their apical margins gently sinuated, and 

 clothed (as are the lobes throughout) with fine, rather 

 long, incurved hairs. 



This, I believe, is the true loti $ Moraw. ( = morawitzi, 

 Gerst.). See the Note following this paper, where I discuss 

 its characters. 



I have only taken two specimens (Petit Saleve near 

 Geneva), see Figs. 20, 21, 27. 



Fig. 12. Differs from the last chiefly in the shape of 

 the process, whose transverse lobes are more widely 

 separated at their bases; they are broader in proportion 

 to their length, and their superior or apical margins are 

 much more abruptly and deeply sinuated near the apices, 

 the corresponding curve in morawitzi being so gentle and 

 gradual as to be hardly noticeable. 



The spinose angles, lateral pilosity (a little shorter, 

 however,) direction of margin, etc., of the main lobes almost 

 exactly as in morawitzi. 



This is difformis, Perez ; but not Ducke's difformis, who 

 describes the present species I believe under the name 

 moraivitzii, Gerst. (See the Note above mentioned for 

 discussion of this question.) For the antennas see Figs. 28, 

 28a, 28b. 



