278 



4 



E Mus. H. E. Dresser. 



a, b. Algerian Sahara (Fairmaire). c, £ . N. Africa (Verreaux). d, 3. Ghizeh, Egypt, January 18th, 1863 

 {S. S. Allen). e,f, g. Djeddah, Red Sea (S. S. Allen). 



E Mus. H. B. Tristram. 



a , <3 > b> 6 ■ Wed-Irluh, Sahara, December 9th, 1856 (H. B. T.). c, $> . Desert, Ain Bahrdad, December 3rd, 

 1856 (H. B. T.). d, 6. Desert of Souf, January 2nd, 1857(^.5. T.). e, ?. Desert, El Mariar, 

 January 15th, 1857 (H. B. T.). f,g,2. Laghouat, November 1856, types of C. mlvini {E. B. T.). 

 h, (J. Nubia, September 14th, 1851 (Brehm). 



