342 Mr. H. E. Strickland on Cyanocitta superciliosa. 



and much more curved, especially in the female ; the legs longer 

 and distinctly stouter ; with the lower half of all the tibiae black, 

 the upper part rufous. 



This insect is rather local and not frequently found ; I met with 

 it once rather plentifully in a red clover field near Birch Wood, 

 the beginning of June. 



56. A. Icevicolle, Kirb., Germ., Steph., Schonh. 



Mr. S. Stevens has found this species common in three localities 

 near Arundel annually, in the month of August ; also near Ryde, 

 Isle of Wight. I met with many specimens on a sand-bank on 

 Windmill Hill, Gravesend, in July : it appears to prefer sandy 

 situations. 



[To be continued.] 



XLIX. — Further Notice respecting Cyanocitta superciliosa, a sup- 

 posednew species of Blue Jay. By H. E. Strickland, M.A. 



In the last Number of the ' Annals,' p. 260, I proposed to sepa- 

 rate the Blue Jays of America from Cyanocorax, under the ge- 

 neric name of Cyanocitta, and I also pointed out a species of the 

 latter group which had been hitherto confounded with the C. ul- 

 tramarina of Mexico. When my paper went to press it happened 

 that I had not then received the March Number of Mr. G. R. 

 Gray's excellent work the ' Genera of Birds,' which contains a 

 monographic summary of the subfamily Garrulince. He there 

 follows preceding authors in retaining the Blue Jays and the Blue 

 Crows under one genus, Cyanocorax, of which he enumerates in 

 the whole twenty-one species. There can however be no doubt 

 that these two groups are deserving of generic separation, as they 

 not only differ in many points of structure and of colour, but also 

 in their geographical distribution, Cyanocorax proper inhabiting 

 the warm latitudes of South America, while Cyanocitta ranges 

 from Mexico to the colder parts of the North American con- 

 tinent. The latter genus may be thus defined : — 



Beak moderate, breadth at the base exceeding the height ; up- 

 per mandible depressed at the base, slightly compressed towards 

 the point ; culmen straight for |^ths of its length, then gradually 

 curving down ; commissure almost straight till near the apex, then 

 curving downwards ; emargination nearly obsolete, gonys curved 

 upwards, height of each mandible nearly equal. Nostrils covered 

 by recumbent bristly feathers. Frontal feathers not forming a 

 rigid erect crest as in many species of Cyanocorax. Total length 

 from 10 to 12 inches. Plumage more or less blue, especially on 

 the wings and tail, which are frequently barred transversely with 

 black. Structure of the feet, wings and tail as in Cyanocorax. 



