TACHE, 257 



Supra nitenti-gramineo-viridis seneo vix tincta, capite sunimo obscuriore : subtus obscure caeruleo-viridis, 

 gutfcure medio plus minusve micanti-ea3ruleo ; fcectricibus subcaudalibus albis ; cauda saturate chalybeo- 

 ceerulea, rectrieibus mediis saturate griseo terminatis : rostro corallino-rubro, apice nigro. Long, tota 

 circa 3-8, alae 2-1, caudse rectr. mad. 1-1, rectr. lat. 1-25, rostri a rictu 0-9. 



5 supra mari similis : subtus grisea, abdomine medio et tectricibus subcaudalibus pallidioribus, regione 

 auriculari fusca, stria postoculari elongata, alba ; caudae rectrieibus lateralibus albo terminatis, rectrice 

 extima utrinque quoque medialiter grisea, cauda minus furcata. Long, caudse rectr. med. I'O, rectr. 

 lat. 1-2. (Descr. maris et femince ex Bolaiios, Jalisco, Mexico, ilus. nostr.) 



Hah. Southern Arizoxa i^. — Mexico, District of Moctezuma iu Sonera {F. Ferrari- 

 Perez 1^), Nuri and Ysleta in Sonora {W. Lloyd ^^), Mazatlan [Grayson ^, Foirer), 

 Guanajuato (Duges^, Sanchez *" ^^), Sierra de Victoria in Tamaulipas {W. B. Rich- 

 ardson'^^), San Luis Potosi {Jouy, in U. S. JSat. Mvs.), Jalapa [de Oca^), Alpine 

 region of Orizaba (Sumichrast^^), Aguas Calientes and Calvillo, Bolanos, San Bias, 

 Lake Chapala {W. B. Richardson ^°), Santa Ana in Jalisco {W. Lloyd ^% Plains 

 of Colima (Xantus, in U. S. Nat. Mus.), Patzcuaro {F. D. 0. ^% Valley of Mexico 

 {de Oca ^, ^Vllite ^, Boucard ^o, Herrera ^^), Hacienda Eslava and Tetelco in the 

 Valley of Mexico (F. Ferrari-Perez ^°). 



This now well-known Mexican species was described by Swainson ^ in his paper on 

 Bullock's collection, the type being supposed to have been obtained in the " Table 

 lands," which was most probably the case. Floresi collected many specimens during 

 his residence in Mexico, but no record of the exact localities was preserved ; but very 

 probably his specimens were secured near Bolanos, where the bird seems to be very 

 common. Its range northwards extends beyond the Mexican political frontier into 

 Southern Arizona, and it appears to be found nearly everywhere on the western side 

 of the mountains from Sonora to Colima and to the Valley of Mexico. Its range in 

 altitude, too, is great and extends from the sea-level to a height of 7000 or 8000 feet. 

 1. latirostris is not confined to Western Mexico, for Mr. Richardson found it in the 

 Sierra above Ciudad Victoria in Tamaulipas, and it is included in de Oca's list of 

 Jalapa birds ^, and Delattre obtained a young male near the same place i' ; but we 

 suspect that these specimens were shot in the higher parts of the Cofre de Perote, on 

 the flank of which Jalapa is situated. This would agree with Sumichrast's statement 

 that it occurs in the Alpine region of Orizaba ^^. In the Valley of Mexico it occurs, 

 according to de Oca ^, from November to the beginning of March, which is its time of 

 nesting. It is not, however, a very common species. 



Mr. Eichardson secured us a number of specimens at Bolanos in the State of Jalisco, 

 all shot in the month of February. These show considerable variation in the intensity 

 of the bright blue colour of the throat, some specimens being almost green, others 

 deep blue. This fact is of importance when the specific value of L magica is 



considered. 



Senor A. Herrera describes ^^ a nest of this species which he found at Chimalcoyoc 

 in the Valley of Mexico as composed of the seeds of Asclepias linaria, and placed in a 



BIOL. CEKTR.-AMER., Aves, Vol. II., May 1892. 33 



