12G [June, 



in the Sudan as in Egypt, but in addition to the striking'ly dimorphic 

 Xylocopa cestuans, Linn., with its very different males and females, five 

 males of Xylocopa taschenbergi, Vachal, turned up at Khartum. 



Of the leaf -cutters several species were met with. Two Megachih 

 flavipes, Spin., were taken in the western suburbs, also at CaJ()tr(ypu, 

 near the rifle ranges ; this is a small species which I afterwards found 

 quite commonly in Egypt ; but ill. albncinda, Rad., also an Egyptian 

 species, was the commoner at Khartixm, frequenting the flowers of 

 Calotropis and Taconia, it is not, however, by any means easy to catch, 

 still I secured thi-ee males and five females ; of M. argentata, Fab., 

 I took two males and a female, it also frequented Tacoma ; at Calotro- 

 pis and other flowers I took three specimens of M. ? pateUhnana, Spin. 

 ? n. sp. 



There were but two species of Anthidium among my captures, viz., 

 tesseUatutn, Klug, of wliicli I took two females ; and ? karschi, Friese, 

 of which I took a male, at least a bee which Mr. Morice says is probably 

 the undescribed male of that species. I also got several specimens of 

 both sexes of an Aidhophora which Mr. Morice says is near bimacidata, 

 Panz., and possibly = byssina, Klug, b\it that there perhaps may be 

 more than one species among them. Three males of Ceratvna< tarsata, 

 Morawitz, turned up at Khartum. 



At Abu Hamed (Lat. 19° 30' N.), 331 m. north of Khartum, I 

 took in the station-masier's garden two females of Nomia latipes, 

 Morawitz. At Khartum I secured a male of N. edentato, Mora'watz, 

 and four females of the tiny yellow and black Nomioides rottmdiceps, 

 Handl. 



Among those gem-like creatures, the Chrysididie, I was successfid 

 in getting some interesting insects, although I did not find them 

 numerous. The brilliant, but widely distributed Stilbum splendidwm, 

 F., was the commonest, and I brought home twelve, some of them of 

 the var. amethystiimm, F. In the garden of the Cataract Hotel at 

 Arwan (Upper Egyj^t), on January 26th, 1909, at about 5.30 in the 

 afternoon. Miss Stracey called my attention to a number of Stdbiim 

 splendidum upon a ParJcinsonia (an Australian tree with yellow flowers) ; 

 they formed two clusters, one on a branch, the other on pods, con- 

 sisting of 14 and 34 individuals respectively ; they were sitting close 

 together, quite still, and appeared to be stupid. Mr. Morice was much 

 interested in my accoinit of this observation, which he is not able to 

 account for, and cannot exactly match by any other recorded case 

 among the Hyntenopfera. I mentioned the matter to Mr. F. C. Will- 

 cocks, F.E.S., of Cairo, but he said that he had never noticed anything 



