Descriptions and Records of Bees. 527 



genital aperture is well forward, on a level with the pharynx, 

 but to the left of it. 



This is probably an older example of P. redactuin, and the 

 difl'erences are due to development. 



EXPL.VNATION OF PLATES XII. .t XIH. 

 The following letters apply to all the figures : — 



A.S. Oi-al sucker. 

 Ph. Pharynx ( {esophageal bulb). 

 V.S. Vesicula seminalis. 

 Ov. Ovary. 

 Ex. P. Excretory pore. 

 O. Ova. 

 S.O. Shell-gland. 



Fig. 1. Eihinostomiim secumlum. 



Fig. 2. Ditto. Anterior end. X 



Fig. 3. Ditto. Lateral view of head. 



Fig. 4. Zeugonhis acanthus. X -5. 



Fig. 5, Ditto. Part of anterior end to show arrangement of spines (c.«.) 



on body. G.P. Genital papilla, x 60. 

 Fig. G. Ditto. Posterior view o{ head. X 35. 

 Fig. 7. Ditto. Ovum. E.S. Eye-spots, x 100. 

 Fig. 8. Levitisenia sitnilis. G.S. (lenital sinus. 

 Fig. 9. Pifilostoynum redactum. Ab. Refractive body. 

 Fig. 10. Ditto. Older example. 



LXIX. — Descriptions and Records of Bees. — XI. 

 By T. D. A. CocKERELL, University of Colorado. 



Australia (including Tasmania) possesses thirty-five de- 

 scribed species of Meyachile, all first described by F. Smith 

 with the exception of three, made known by Fabricius, 

 Radoszkowski, and Froggatt respectively. In 1901 I had 

 an opportunity to study Smith's types in the British 

 Museum, and I have now been permitted to work up the 

 material which has accumulated in that Museum since 

 Smith's time, the present paper being the result. I include 

 in my tables two species of Litlmryus, which are easilv 

 confused with Mvgachile. 



The Australian species of Megachile do not appear, for 

 the most part, to be closely related to those of the Austro- 

 Malay islands. Thus, of all the Australian species known in 

 the female, only two have the ventral seopa black, and three 

 or four have it red or fulvous, all the rest having it white or 

 nearly so. The Austro-Malay islands arc richly endowed 

 with fifty-five described species, most of which have the scopa 



