Batley & Popic: five new Leioproctus (Protomorpha) bees 
47 
Acknowledgments. We thank Professors Glenda Wardle and 
Chris Dickman, Dr Yvonne Davila, the Desert Ecology Research 
Group and volunteers for valuable assistance in the Simpson Desert 
and to Bush Heritage Australia and Carlo Station for granting access 
to the Simpson Desert sites. We gratefully acknowledge the help of 
Dr Terry Houston, who generously devoted time and expertise to 
the examination of specimens in the Western Australian Museum 
and the provision of advice on the manuscript. Funding for the 
project that allowed collections in the Simpson Desert was provided 
by the Australian Research Council. 
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Manuscript submitted 9 May 20 f 3, revised 4 July 2013, and accepted 5 
July 20J3. Associate Editor Dr Andrew Mitchell. 
Figures 1-10. (1) Leioproctus latifrons n.sp., female, lower head showing labrum. (2, 3) Leioproctus nix n.sp., male: (2) part of hind 
leg showing tibia; (3) apex of inner face of hind tibia showing the spurs. (4) Leioproctus gibber n.sp., male, ventral view of metasoma 
showing shape and hair pattern of S3-S6. (5-10) Female heads: (5) Leioproctus crispus n.sp. front view showing labrum and clypeal 
hair; (6) Leioproctus gibber n.sp. vertex; (7) Leioproctus gurneyi n.sp. vertex; (8) Leioproctus latifrons n.sp. vertex, oblique view; (9) 
Leioproctus latifrons n.sp. vertex, dorsal view; (10) Leioproctus nix n.sp. front view. 
Figures 11-20. (11-17) Male hind legs: (11) Leioproctus crispus n.sp. tibia and basitarsus; (12) Leioproctus gibber n.sp. tibia and basitarsus, 
distal seta arrowed; (13) Leioproctus gurneyi n.sp. tibia and basitarsus; (14) Leioproctus latifrons n.sp. tibia; (15) Leioproctus latifrons 
n.sp. basitarsus; (16) Leioproctus nix n.sp. basitarsus outer view; (17) Leioproctus nix n.sp. femur anterior view. (18-20) Flowers of: 
(18) Lechenaultia divaricata F.Muell.; (19) Scaevolaparvibarbata Carolin; (20) Eremophila gilesii F.Muell. Arrows in Fig. 18 and Fig. 
19 indicate the pollen presenter. 
