322 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



Cerchneis sparveria asquatorialis (Mearns). 



Falco sparverius cequatorialis Mearns, Auk, 1892, p. 269. 



Type locality: Ecuador (Guayaquil?; exact region unknown). 



Range: Ecuador. 



Characters: Male (Type, No. 101309, U. S. National Museum). 

 General coloration and spotting of under parts approaching caucce, but 

 size larger; outer web of second outer primary immaculate; third 

 with two small narrow white spots; tail band wide; tail long; inner web 

 of outer rectrix black and white, without rufous. 



Wing, 192; tail, 141; width of tail band, 26 mm. 



Female (No. 67349, U. S. National Museum). Wing, 195; tail, 

 139 mm. 



Comparative differences: Differs from C. s. andina in the heavy spot- 

 ting of the under parts and somewhat paler coloration; in the much 

 wider tail band; and in the absence of the pronounced white markings 

 on outer webs of several outer primaries. From cauc& and peruviana 

 it differs by its larger size; longer and much wider tail; and also from the 

 latter in the more deeply colored under parts. From cinnamomina it 

 differs in its very much wider tail band and more deeply colored under 

 parts; and from C. s. ochracea in its somewhat larger size; longer tail; 

 and strongly spotted under parts. 



Remarks: The type locality of this subspecies may or may not have 

 been Guayaquil, Ecuador,* as given by Mearns; and it is by no means 

 certain that the female came from the same locality as the male, or in 

 fact is the same subspecies. The male, however, having been first 

 described, must be accepted as the type of C. s. aquatorialis. While 

 it is probable that the type specimen was not killed in the vicinity of 

 Guayaquil, until specimens have been secured from this locality for 

 comparison we have no grounds for the positive assertion that it was 

 not, as it differs from any other specimen which I have seen from 

 Ecuador or elsewhere. The type specimen is apparently not fully 

 adult and is intermediate in size between the large deeply colored and 

 comparatively unspotted birds from Quito and Mt. Chimborazo (C. s. 

 andina') and the strongly spotted and smaller birds from lower altitudes 

 (C. s. cauccB & C. s. peruviana). It is, however, quite similar to some 

 of the latter in coloration, and not greatly different in size (except for 

 its longer tail) from a specimen which is apparently C. s. caucce from 



* Dr. C. W. Richmond writes me as follows: "I find that Dr. Jones received 

 the birds from a Mr. Cartright of Guayaquil, who was constantly receiving them from 

 the interior of Ecuador. So it appears that the type localities of the Falco atquatori- 

 alis, the Columba guayaquilensis and the Xiphocolaptes saturatus described from this 

 collection will always be in doubt." (See also Chapman, Bull. Am. Mus. Nat. Hist., 

 N. Y., XXXIV, 1915, P- 377-) 



